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  • gull123's Avatar
    03-21-2015, 06:11 PM
    gull123 started a thread RB versus VTT 2+ in N54
    Need some help here.Having an issue what turbo to buy for my BMW 135I ? VTT stage 2+ or Rb Turbos. I heard that RB's spool a lot sooner than VTT stage2+, but VTT has more top end.I think for daily driver maybe the RB's? Any feedback will be appreciated. re; Ed.:dance:
    167 replies | 4061 view(s)
  • Tony@VargasTurboTech's Avatar
    04-10-2015, 10:26 AM
    Did a little messing around on the dyno last night on the crappiest of crap California 91 ACN gasoline, no meth. With a really conservative tune, we ended up with 585WHP / 500WTQ. Yes this is a new N54 91 WR, no we do not like putting it in all caps, red letters, and 75 font size, as honestly who is going to run this. We did this testing to satisfy the people who will inevitably ask about 91. For the tuning we literally ran 1 degree of timing at redline (yes that's ONE degree), sometimes less if it corrected. We could have pushed harder, but after every pull I found myself checking for lumpy idle, etc. This really isn't a good feeling, and the idea of breaking an expensive built motor to push any harder on 91 was decided against (there was more in there). As usual Dzenno made small changes, until we got where we wanted. This was running about 24-25 psi, and as I stated before, no timing. The 91 has been drained out of the car, and sacrificed to the power washer gods. We will continue on with some E85 testing...:paddle: I think you guys know the specs on the car but here they are: ABR built motor VTT Stage 3 VTX2867 Turbo kit VTT Shotgun Double Barrel PTF Twin Disc clutch ACN 91, no meth Tuning by Pro Tuning Freaks
    150 replies | 4267 view(s)
  • Sticky's Avatar
    04-01-2015, 08:28 PM
    I'm still working out a few minor bugs but I've launched the BoostAddict FaceBook page: https://www.facebook.com/BoostAddictNetwork Kindly 'like' it as I need to start building up the Facebook presence to leverage. Like it , post in this thread you liked it, and you'll get 20 rep rep points.
    125 replies | 3321 view(s)
  • drfrink24's Avatar
    04-06-2015, 08:40 AM
    What's the latest status on the various tables being uncovered in that thread that went private? I haven't seen any threads popup since I donated some money a few weeks ago... unless it moved somewhere and I'm just blind.
    148 replies | 2820 view(s)
  • richpike's Avatar
    03-24-2015, 06:54 PM
    richpike started a thread New S65 Record? 785whp in S65
    Saw this on the other forum. Built motor, ESS VT3. 6mt. Baseline is 93oct, stock headers. 732whp Next he added LT headers. 765whp Finally did a mix of race gas and a smaller pulley. 785whp. Pretty impressive. Lots happening in the E9x chassis lately. I'd love to see some of these high HP M3s and the new high HP 335s battle it out at a 1/2 mile event. -Rich
    151 replies | 2382 view(s)
  • Tony@VargasTurboTech's Avatar
    03-20-2015, 09:13 PM
    Well folks, its finally almost done. Yes its been two years, yes people have bashed on almost nonstop and for good reason, but they will soon need to find something else to complain about...:P Below are a few pics of a close to production VTT Stage 3 VTX-67R twin turbo kit, there are a few pieces missing such as a couple fittings, heat shield etc, but its very close to complete. We are shooting for a June 1st release date, and hopefully will be shipping our pre-orders a little sooner. If you have a kit on order please make your turbo choice, and get it over to us so we can start getting those ordered. We want to THANK ALL OF OUR PREORDERS for being incredibly patient, and staying the course, this will be the THE N54 turbo kit, you will not be disappointed! As always thanks for the support!
    113 replies | 4376 view(s)
  • Sticky's Avatar
    04-09-2015, 09:34 PM
    I'm going to put something together as this is our 5 year anniversary and I just want to say thank you to all of you. The people who have helped, those that have not helped, whatever. I want to show this community is the best ups and downs or not. I can't guarantee I can do this all myself but I also can't count on others to get it done. If any one of you wonder why I prefer working alone it is for reasons like this. So, please, just list what you would like in an app. I'm considering making it so that it connects directly to our new (and coming shotly) downloads section so you can just select a map from the app and download it just like that. I'd love to give back (as apparently the original BB app, new servers, and new features aren't enough) so just tell me what you want to do and Ill let you know if it's feasible. Let's be productive and positive. So, thinking caps on people! :stripper:
    98 replies | 1844 view(s)
  • Ofmalik's Avatar
    04-14-2015, 07:42 PM
    Ofmalik started a thread Want ST TURBO KIT ASAP in N54
    Looking for a ST kit, need ASAP. PM with whatever you've got new or used
    106 replies | 1766 view(s)
  • drfrink24's Avatar
    03-28-2015, 03:40 PM
    Struggling with the decision between upgraded twins + inlets vs. top mount single (VM TM w/6465 1.0AR) for a daily driver 335xi that will never see a track or airstrip. I think with either option, most FBO people will still likely need: Fueling (stage 2 or stage 3 LPFP + PI or VTT HPFP) Charge pipe (some FBO, including myself, haven't had issues with stock CP + DVs) Labor is nearly identical, though you don't need to hassle with shipping your old turbos back w/Single Upgraded twins RB or Stage2 = $3000 + cores (hexon are a cheaper option) TFT inlets = $1500 (includes CP) BOV = $250 = $4750 I agree there are cheaper options (including MM inlets or VTT inlets) but the TFT seem like the most potential for power out of those 3 options. You could go with Hexon, or VTT Stage 1, but you're not saving much money and leaving lots of power on the table for a LOT of labor. VM Top mount $6400 + CP $250 (BMS using stock DVs) = $6650 This is less than $2000 more (yes, $2000 isn't exactly chump change), this gap gets even smaller if you're comparing VTT 2+ or RB "super" turbos. The advantages, that I can tell: - Minimizes regret factor and allows easy swaps of bigger or smaller turbos - Happier engine with less octane required - You could return your car to stock without the hassle of needing new or used stock turbos Seems to me, that for all the labor involved, and potentially being a longer lasting solution, $2000 really isn't all that much more to spend.
    99 replies | 1894 view(s)
  • MM Performance's Avatar
    03-22-2015, 07:23 AM
    https://www.facebook.com/pages/Todd-Copes-Horsepower-Barn/271045639582958 Dont know if link will work but in the Facebook page of horsepower barn/ AD engineering, they just dyno tuned thier 6766 single turbo kit to 747 whp. I'm not sure but from what I read quickly online, I think dyno dynamics reads 14% lower than dynojet, it's the best load based dyno for tuning on the market I think and reads lower than mustang dyno. They should put it on a dynojet and might be the highest hp N54 yet, who knows :) EDIT 3/30/15: more info came out from HPB and the dyno correction factor had already been set to account for difference with dynojet numbers.
    88 replies | 2402 view(s)
  • drfrink24's Avatar
    03-27-2015, 01:08 PM
    Researching fueling options, would like some thoughts: Seems like port-injection (or TB injection) is starting to show up in several builds, however, VTTs single/double shotgun appears to be fairly straight forward and elegant solution, yet we're not seeing it show up as much. Has there been some problems with the shotgun option? Less tuning support? Less capacity? Install overly difficult? Its cheaper as well.. what am I missing?
    81 replies | 2253 view(s)
  • foe516's Avatar
    04-11-2015, 11:43 PM
    So now that we see all the gains to be had with inlets. Slicksilver hitting 500whp i wonder what we can expect with just a compressor upgrade like the VVT stage 1. i mean i really enjoy tracking my car so i would be happy with a 500-525 whp daily driver. it really doesn't even seem like you need stage 2 anymore to break 500. and these can be had fairly cheap. right now fbo with jb4 and bb e85 back end i hit 410whp/440tq. i couldn't even imagine another 20-25% more power. just looking to statr a discussion and get some ideas. thanks
    87 replies | 1605 view(s)
  • MM Performance's Avatar
    04-03-2015, 04:31 PM
    New stock turbo World Record :music-rockout: Well got it done today as promised with Terry helping me dyno tune. 80F rainy and muggy outside, plenty of humidity, and it didn't matter, got the new WR thanks to the MMP turbo intakes! Will post more data later but here is the dyno picture for now. This was on my own personal daily driver car with 90k miles on it, 2007 6AT 335i coupe. Also ran leak down on it recently and 2 cylinders are at about 20% so not the most power producing engine out there ;) A healthier engine will definately see more power. power mods: MMP turbo intakes JB4 custom tuning backend and user settings fuel it stage 2 LPFP dual meth injection DPs without cats Big Tom intercooler TFT charge pipe custom 3" intercooler up pipe NGK .022" gapped spark plugs fuel: straight E85 run 21 is 4th gear, run 23 is 5th gear. oh and this is on a 6AT with 3% more drivetrain loss than MT. Adjusted for MT drivetrain loss, this would be 512whp Previously I had my car tuned to the absolute max on the dyno and my results in 4th gear was 447whp and in 5th gear was 456whp. I was running 100% E85 and the same amount of meth. All I did was change to the MMP intakes and dyno tune for the added performance of these inlets and I made 490whp in 4th and 500whp in 5th. That is a delta of +43whp in 4th and +44whp in 5th, pretty consistent. Also if you look at the logs where max HP is made for each Dyno pull, this is done with a delta of 3psi for these gains, pretty awesome gains for only 3psi! Also the conditions on the dyno prior to inlets was a Density altitude of 1208 ft and on the dyno day with the new inlets was 2873 so alot worse in DA, it was a hot muggy day, I told Terry I didn't think we could hit the record on that day but he urged me on to keep the dyno appt, glad you did Terry ;) So with the same car, maxed tuned for each setup, on the same dyno, and with worse conditions, here are actual deltas and results, not speculations based on different cars, different drivetrains, different dynos, etc, etc, etc leading to bad conclusions below is the comparison plot of max effort dyno comparison pre and post MMP intakes all else equal. And here is the log for the the dyno pre MMP intakes with max effort tuning And here is the log for the dyno post MMP intake installation with max effort tuning As you can see, before The top end is where the MMP intakes shine and net +44 max whp and + 56 whp at 6k rpm and also broadened the power band by shifting the max hp up by 200 rpm and alot more area under the curve. You can see from the dyno logs before MMP intakes WGDC was 100% maxed out at 5500 rpm on and only holding 20.8psi taper to 16.5psi, after MMP intakes WGDC only gets to 86% at 5700 rpm and able to make 25 psi, taper to 21.6 and back up to 22.6. This clearly shows with Dyno data and logs that there is a HUGE performance gain on stock turbos by upgrading to the MMP intakes!
    71 replies | 2086 view(s)
  • andy_divers's Avatar
    03-31-2015, 05:52 AM
    After many months of testing and thousands of miles now logged on our first few kits its into full production mode. We are also proud to announce a much lower price of $5999 for our 62mm "Hot Side" kit. A few things allowed us to do this... better buying and pricing on larger quantity orders have brought cost down, but the biggest change is the intake. The original kit included a high temp resin carbon fiber intake. However, the producer of the intake was not reliable and after not being able to find a new outlet to produce them we made the decision to step away. The intake is now a 6061 aluminum mandrel bent intake with the K&N filter still located behind the left headlight. I really wanted the CF intake, but it looks to be a blessing. No longer including a CF intake paired with parts savings has dropped the kits' price almost $900 without sacrificing quality, fit, or performance. http://www.ad-eng.net/store/p25/AD_Engineering_BMW_N54_Single_Turbo_Kit_%28_135i%2F335i_%29.html Keep an eye out as we add the AD Engineering Intercoolers and Catch Can over the next few weeks
    71 replies | 2206 view(s)
  • tjobeid's Avatar
    03-28-2015, 05:09 PM
    http://www.datazap.me/u/tjobeid1991/dyno?log=0&data=1-3-4-6-8-10-11-13-17-18-20-25-26-27-28-29 Here are some logs attached as we'll as a dyno sheet. Car was on e60 running an unmodified bms e85 flash boost set to 20psti from 2500-6000rpm.FBO +255 walbro+ TFT style inlets. RUN 004 was before new intakes
    55 replies | 1669 view(s)
  • Eleventeen's Avatar
    04-01-2015, 09:41 PM
    Hey guys, I just saw this and thought some people may be interested. Precision JUST announced a new turbo that falls between their 58xx and 62xx units. This should be another great option for the N54: http://www.precisionturbo.net/news/Press-Release--New-GEN2-PT6062-CEA®-Turbocharger-Introduced/293
    55 replies | 1070 view(s)
  • Sticky's Avatar
    03-20-2015, 03:18 PM
    Magazine test numbers are becoming useless. Nevermind the fact some manufacturers like Ferrari hold magazines hostage if the numbers do not show what they want some of them just flat out cheat. Have you ever heard of press files being used in magazine test cars? What it means is that the car being tested is not the car you will be buying. BMW apparently had several press files for the F10 M5. This all really started with the turbo era as you could not play around with output using software back in the naturally aspirated M era the way you can now. So, some manufacturers turn up boost and disable certain safeguards (limp mode) in the ECU and send the car to be tested. It's a press beater car anyway so they do not care what happens to it. It makes sorting out what is real and fake incredibly difficult. For example, the fastest Lamborghini Huracan in the world runs the 1/4 mile in 10.59 @ 129.12 on a 1/4 mile drag strip. That is an aftermarket ECU tuned example mind you. So how does MotorTrend get 10.6 @ 132.8 out of it? What about Car and Driver's 10.4 @ 135? Somehow real world results on the drag strip do not match the magazines. This latest test is no exception as 12.0 @ 119 is indeed silly quick. That is not to say the F80 M3 and F82 M4 DCT can not replicate these numbers stock as they can. In negative density altitude with race gas. So owners need great weather and race gas to match Car and Driver. Or is it more likely that Car and Driver is not testing on a drag strip (they aren't) thereby inflating their numbers? Is it also possible BMW might be passing around press files again? Is it a combo? Who knows, but it is becoming increasingly difficult to trust magazine times as a realistic representation of what you can achieve yourself in the exact same car. P.S. For those interested in DCT vs. manual transmission discussion Car and Driver ran 12.3 @ 116 in their manual F80 M3 test car. P.S.S. The transmission isn't an automatic Car and Driver. Specifications VEHICLE TYPE:front-engine, rear-wheel-drive, 5-passenger, 4-door sedan PRICE AS TESTED:$84,325 (base price: $65,850) ENGINE TYPE:twin-turbocharged and intercooled DOHC 24-valve inline-6, aluminum block and heads, direct fuel injection DISPLACEMENT:182 cu in, 2979 cc Power: 425 hp @ 7300 rpm Torque: 406 lb-ft @ 1850 rpm TRANSMISSION:7-speed dual-clutch automatic with manual shifting mode DIMENSIONS: Wheelbase: 110.7 in Length: 184.5 in Width: 73.9 in Height:56.1 in Passenger/cargo volume: 96/12 cu ft Curb weight: 3613 lb C/D TEST RESULTS: Zero to 60 mph: 3.8 sec Zero to 100 mph: 8.5 sec Zero to 130 mph: 14.5 sec Zero to 160 mph: 25.8 sec Rolling start, 5-60 mph: 4.5 sec Top gear, 30-50 mph: 1.9 sec Top gear, 50-70 mph: 2.7 sec Standing ¼-mile: 12.0 sec @ 119 mph Top speed (governor limited): 163 mph Braking, 70-0 mph: 153 ft Roadholding, 300-ft-dia skidpad: 0.99 g FUEL ECONOMY: EPA city/highway driving: 17/24 mpg C/D observed: 20 mpg
    58 replies | 341 view(s)
  • 1st's Avatar
    04-04-2015, 12:46 AM
    Hi! I have a JB4 and a single turbo installed with all supporting mods on an 07 335i. I ran the single turbo backend flash, and the flash went flawlessly and the car ran well. No flashing issues. Recently, I had my tuner adjust some timing values and send me a new bin file. I tried that backend flash on my Macbook, and upon trying to write the ECU, it says that the flash failed and that it would not authenticate the control module. The fuel pump ran continuously in this process. I disconnected the battery for 5 minutes and repeated this process 5 or 6 times. Same issue every time. What should I do to get my car started? I am home for the weekend and have a business trip I have to make on Monday (oops). Right now it will not start, and when I turn the ignition on, the fuel pump runs continuously, regardless of whether or not I am connected to BimmerBoost. Any and all help is greatly appreciated!
    52 replies | 1023 view(s)
  • jputtho2's Avatar
    03-20-2015, 07:04 PM
    First off, I owe HUGE thanks to Jake and the guys at Motiv Motorsports with all of their help with pointers on the tuning side of this and the very high quality products they offer. Also Huge thanks to Chad and Ryan Modified by KC who did the install and tuning on my car. Mike and Aaron and the guys at FFTEC for a very well made turbo kit, and last but not least Steve at Fuel-It taking care of me and my last minute change to the Stg 3+ lpfp! I wouldn't have been able to do this with my life's schedule being so busy with my rapidly growing business and my family. Anyone that knows me knows I'm extremely anal about my cars and in fact was the first time in 10 years that I have trusted someone to work on my cars other than myself. (My cars prior I did all of the assembly, fab work, tuning, etc). This setup is fairly simple as far as mods go and can be replicated easily now that there is a growing support in this community of quality vendors such as the ones I listed above. It's a 100% stock unopened 64k mile long block. It's what I consider a bolt on car. Still has every single creature comfort as one that came from the factory minus the windshield washer reservoir. Well the reservoir is still there the full neck is removed but A/C, heat, cruise, Nav, etc, etc, is still all there and functional. Fuel was 100% e85. To be exact it was e70 winter blend from the pumps that I blended e98 in to bring it up to ~e82. The pumps here should be switching to the summer blend e85 here in a month or so. Injector duty cycle on the port injection was 80% and I can't remember exactly what the DC was for the direct injection but it was roughly the same. I would say its safe to assume 900whp on 100% e85 with this fuel system isn't an issue. MODS: - FFTEC twin scroll Top Mount Precision billet dbb 6466 T4 1.0ar divided, twin Tial MVS WG's - Motiv Motorsports PI-1000 kit - Fuel-It "Hulk"Stg. 3+ lpfp - Cobb AP (Controls the DME/DI) - Haltech Platinum Sport 1000 (controls the PI and boost) - Custom harnesses made by Chad at Modified by KC - Clutchmasters FX850 twin disc - VRSF 7" IC - VRSF charge pipe - Tial Q bov - 4" to dual 3" exhaust The final number was 861whp at 250-255KPA or a peak of 36psi. We were having interference on the rpm pick up for the dyno so I'll post two graphs, one over vehicle speed and the other with engine speed but the engine speed is going to be pretty erratic due to the interference on the pick-up and lost signal. Exact TQ is unknown on the 800+ pulls because of this. It's around 750-760wtq which is low because we had to ramp boost in to keep torque lower due to a "Too Much Torque" limp mode if we gave it all right away on basically anything over 775whp. Otherwise, following what it was was making for tq I would guess it would be around 800wtq and spool would have been about 300-500rpm quicker. The car has A LOT more left in it and this number can easily be broken. My goal today was to make big power but also be able to enjoy after the dyno. I plan on pushing it again this winter until I run out of turbo or the motor lets go and then it'll be a fully forged bottom end, possibly a Motec m142 to simplify the tuning side, and try and do something with the head to make it more rev happy because it really could use another 500-1000rpm. I wouldn't be surprised if the n54 could handle 900-915whp stock. For how long though is the question. I didn't want to be the test mule for the limits of the motor right now. Anyway, we made I think 75-80 pulls on e85 alone, half of those were well over 700whp and I think 5 pulls over 800whp (805, 813, 832, 858, 861). Pull after pull it just wanted more and never showed any signs of slowing up. Here is the 861whp and 832whp graph over vehicle speed. We did make an 858whp pull but the boost control was unhappy bouncing all over hitting target then falling on it's face. This is the 861whp graph with tq reading over engine speed and also showing the dyno losing signal because of the RF interference with the pick-up lead. And then same graph over vehicle speed showing the erratic tq readings again from the reason above. Here is the video of the 861whp pull. (excuse the mismatched wheels, I have new DPE wheels that I was waiting till after the dyno to put on)
    35 replies | 1420 view(s)
  • Mthis's Avatar
    04-12-2015, 10:30 AM
    Posting this on behalf of my good friend Mike. his m5s a beast and looks great as well. his mods are - Undercover 3inch down pipes with full catless Undercover exhaust with JB4 93oct. all work done by JC@ Champion Motorsports in NJ. So here it is the Comparison of Mustang and DynoJet Readings nothing was change in my car just basically doing a comparison Mustang Dyno read 553trq & 546whp Dynojet Dyno read 620trq & 659whp Crank - 760hp Trq- 716torque DynoJet Undercover Performance Mustang Dyno Tunning: https://youtu.be/Nh3HhoIKPk8
    39 replies | 295 view(s)
  • bobS's Avatar
    04-04-2015, 01:06 PM
    Congrats to Steve, Evolve and Undercover Performance for taking the number 2 spot (oh so close to number 1) in the all time fastest (world record) 1/4 mile supercharged M3 category!!:music-rockout: @undercover @Imran@Evolve Here is the thread that was started about the car and how he ran a 10.5 @ 132.66 : Doing what I can to help ALL of us DCT guys. I never had a DJ Dyno with the E625 kit, so I scheduled one for this past Monday (3/30) at PSI Proformance in Lansdale PA. Filled up on 93 octane and off I went. While I was there, I called Atco Raceway to see when they had a private rental available. Turns out they were drying the track for one that day Once I was off the dyno, I headed straight to the track (roughly 70 miles), stopped just long enough to get my number and got to work. FINALLY DCT DRAGSTRIP TESTING TIME!! So, I was using Hoosiers on Apex ARC8's, and have the GTS DCT S/W. Unbeknownst to me at the time, the GTS s/w does NOT let you set 5500 RPM for Launch Control. I wish I knew this beforehand. Either way, it worked at 3500 rpm and Im not sure it would have helped considering the track prep was not great. It was good, but not great. First 2 passes I clicked off: Both of those bumped me into the #2 spot for E9x M3's. #1 spot for unmodified S/C kits (overall #1 is running 10+PSI and a Giant Ice/Water tank mounted in the trunk) But it got even better. With a few more hot-laps to try and run down the pump gas I had in the tank, I couldnt wait to add the Racegas I was itching use.. I ran about 10 more times with almost no deviation even as the DA was rising, 10.5-10.6@129-132mph in -470DA to -33ft DA Around 2:30 I finally got the gas down to below a 1/4 tank and added the 100 octane and tune to match. I had the guys respray the starting line for us because we were going all in now.. I did one "easy" pass to keep tires warm and get the racegas in the system and let the adaptations set in. Came right back around to stage again and let her rip! Like a bat out of hell the car launched! Sadly, shortly after I shifted to 2nd I heard the SNAP and all the lights came on and the car stopped accelerating. Long story short, we got the car back to Undercover Performance ( who does all my work) and we found the problem. May i present to you, the FIRST "known" broken E9x Driveshaft We could be wrong, but Ive never heard of one breaking. As much as it sucks to break, at least its an easy fix. It also lets us know that the clutches are doing their job transferring every bit of power Im throwing at them. Bad news for me, but good news for the community. To summarize: * Dodson Clutches are working well * Expect to upgrade the Driveshaft if DragRacing And most importantly *My car is a ROCKET ( Best ET 10.544 / Best MPH 133.33 )
    28 replies | 417 view(s)
  • Abacus38's Avatar
    03-26-2015, 01:04 PM
    I sold my Cobb unit since I'm going to be picking up the MHD flasher when its release. I was just wondering do guys recommend stacking the JB4 on top so I can used the boost by gear and NLS/2 step or should I just stick to the flasher and buy the WOT box.
    27 replies | 772 view(s)
  • drfrink24's Avatar
    04-02-2015, 11:24 AM
    Wondering if anyone here has experience working on their cars under a 4 post ramp-style lift? I'd have a jack-tray to raise the chassis while on the lift as well. I'll be using this lift to install a turbo kit, as well as other tasks on this vehicle and others. The drive-on diamond plate ramps are 18" wide with 37.5" gap between ramps for work access, and being 175" long, I can have the vehicle on the ramps away from the end cross-member. I realize that a two post lift offers the best access to a vehicle and suspension, however there are some limiting factors in my situation: - I have infloor pex tubing and would like to avoid drilling concrete, my pad thickness is at the bare minimum (4") - I like the idea of having casters and storage potential under a 4 post - I only have 11' ceilings
    23 replies | 747 view(s)
  • 3000gt MR's Avatar
    03-26-2015, 07:29 AM
    I've had a lot of questions regarding some of my comments regarding PI injection. I'm not even close to the most experienced tuner but i have done a lot in the past and have found things out the hard way The quick down and dirty. The #55 injectors that people are using flow 55lbs @ 43.5 (578cc/Min) (standard psi for fuel injector flow benchmark and 99% of EFI engines) and we are running them at 72psi ( So they really flow 744cc/min) Take Josh's (MR2 Josh) for example 861WHP 100% e85 and 80% IDC and his HPFP is about 80% from what he said. That is a shit ton of fuel and still has a lot of head room (80% is a good peak IDC). This is way to much for anyone running less than 860whp. Even though they are considered secondary fueling they need to be power matched to the engine. You want to be around 75% idc at your peak power/rpm to leave some head room and not over work the injectors. This can easily be done with a few calculations. Batch firing is what scares me when the injector is open for such a short period at such a high power and RPM. Terry is only at 30 or 35% at 600+ on straight E85. To me that injection window is way to short and i wonder if thats why he is having timing pulls and cant figure it out. Here is the secondary PI injector window based off Terrys published results. RPM IPW IDC 4000 10ms 33.3% 5000 8ms 33.3% 6000 6.65ms 33.25 I know its not 33% across the board it probably starts off lower and rises, so technically these numbers would be even smaller. Normal IPW is more than double that. With race fuel these numbers would be in upwards of 30% less. If your barley using them and don't plan on making much more power I would defiantly go to a smaller injector and increase the IPW. That's just me though. It's not a one size fits all. On batch firing each injector is spraying at 6 different phases of rotational event. What would help greatly is if we knew what the stock HPFP puts out with a 1.00 scalar so that we can maintain HPFP headroom and calculate remaining flow for PI for given HP levels. Any insight on this. I'm sure if i sat down and thought it out with some calculations we could come up with a good guesstimate Terry@BMS SteveAZ I wrote this up pretty quick and copied and pasted from PM's I've answered. From my own tuning experience on normal EFI's, injector lag times and IPW are huge players in proper tuning. To each their own. Please comment with any insight or added info.
    22 replies | 589 view(s)
  • Tony@VargasTurboTech's Avatar
    04-12-2015, 02:25 PM
    After a few emails with Sticky it would seem people are becoming increasingly offended by some of the negative vendor interactions by us, and many other vendors on this forum. We have decided to implement a new policy for ourselves, and our threads. It is outlined below. 1. Any vendor is allowed to post, and comment in our threads, doesn't matter who you are. 2. If at any time a vendor participating in one of our threads starts posting negative comments (back handed or blatant), derailing the thread, arguing with people in the thread, or generally side tracking the thread away from what it is intended for, they will be immediately removed from it. At the moment, this means we have to request for sticky to remove the offending person, as the ability to do it for vendors is not yet complete 3. We will keep our interactions with other vendors to a minimum, and will not post anything negative in another vendors thread it does not matter who you are. If us, or our products are directly referred to in a negative way, or false / misinformation is posted, and we feel wee need to address it. This will be done by started our own thread to address it. Not destroying the vendors thread with an argument. 4. At no time will blatant attacks, business, personal or otherwise be tolerated by anyone, non vendors included. We pay money to advertise here, and will not attacked in a place of business. This is social exercise for most, for us it is business, and will be treated as such. Again if we feel someone is being offensive, we will have them removed from the thread. With this system in place, we feel it should not only increase our enjoyment of the forum, but make it a much more enjoyable place for all. It is no secret there is no love lost between some of the vendors here, so we will take a stand to try to bring BB back to a place where there is less drama, and more useful information. If you have any positive comments, or suggestions, feel free to post them. If you have negative things to say, keep them to yourself, or start your own thread, we do not want it posted here. Thanks, enjoy your Sunday! VTT
    19 replies | 711 view(s)
  • brendanrule's Avatar
    03-19-2015, 01:28 AM
    brendanrule started a thread Why 100% E85 in N54
    Hey I see people run out of fuel system when using 100% E85 on RB's about 500 hp ( correct me if its more or less hp ) What would happen if someone running out of fuel with 100% E85 went back to E40 with MS109? This is thinking about Typical 1/4 mile events only Cheers
    21 replies | 584 view(s)
  • brendanrule's Avatar
    03-28-2015, 12:53 AM
    I'm looking for more power so I want to get proper inlets. TFT don't fit without fabricating so has anyone fit VTT inlets on RHD? I know Vargass said they fit but I've heard they don't fit up to "stock style box" Dinan or AFE intakes. Has anyone installed them I have only heard of one set being fitted on RHD so far.
    22 replies | 440 view(s)
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