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  • DavidV's Avatar
    27 replies | 2370 view(s)
  • Chris@VargasTurboTech's Avatar
    Today, 02:26 PM
    Chris, we're already in the wall wetting stage with most meth kits. Not ideal. To make a positive statement about wall washing in-cylinder with DI only you'd have to do a lot of homework but I'd guess you're not that far off at the absurd power levels you're talking about. When does that start? Hard to tell. Our recent work with DI only is showing some promise but it's down-the-line stuff, if ever. Still we're over 600 whp with DI only on the prototype setup. I agree that some combination of PI and DI seems pretty useful and easy to implement, and at the very least helps keep the valves clean. If I had endless resources I'd like to experiment with beefed up primary DI and secondary water injection to stave off pre-ignition. You could add a little meth to that to drop charge temps of course but if you don't need it for fuel, you can use what mix makes most sense on your setup/climate/goals. Chris
    73 replies | 2091 view(s)
  • Jeffman's Avatar
    Today, 02:14 PM
    Btw, I'm flash only.
    110 replies | 6113 view(s)
  • AdminTeam's Avatar
    Today, 02:12 PM
    Welcome to a real enthusiast forum ErnestinaI.
    0 replies | 12 view(s)
  • Msport335's Avatar
    Today, 01:51 PM
    went to the track with the e60 tune and trapped 120 multiple times....its consistent but i just couldn't hook up on the street 60ft was 2.08.....1/4 mile times resulted in only a 12.2 and 12.3. now very interested in a meth setup since my IAT's suck. outside air temps were 80 deg f. is the AEM kit the only way to go with MHD flash only?
    110 replies | 6113 view(s)
  • sudo4re's Avatar
    Today, 01:40 PM
    I'm curious as to how the Aquamist safeguard works with a N54. When the Aquamist controller detects a fault in the system, does it cut the 5v to the boost solenoids to dump boost or is it the other way around? In other word, is the voltage to the solenoids normally is at 5v and if it sees a 0v signal then the boost solenoids are deactivated and all the boost are dumped. Thanks
    0 replies | 24 view(s)
  • Chris@Boost Concepts Inc's Avatar
    Today, 01:30 PM
    .7 BSFC is PLENTY of margin for fueling in reality .6 is plenty but I always like the availability of being able to increase fuel without having to go past 80% duty cycle on injectors. the bigger issue we will be facing is in pressure verse flow. when the big power cars start pushing larger turbos, I am sure 40+psi is going to be needed. this is going to require max pressure from the pumps. As an example, with a 72psi base pressure (if left static as the factory system is, you will only have a pressure differential on the PI side of 32psi. this is NOT ideal for getting efficiancy out of a PI injector. spray pattern gets diminished, and controlling the fuel mix becomes problematic due to wall wetting. ideally you will need a rising rate regulator to maintain at least a 50psi pressure differential. that means we will need pumps capable of supplying high volume at 90psi head pressure. no small task. this is right around where the relief valve opens on the Walbro F90000267 450lph pumps. luckily walbro also has the F90000274 High Pressure 450LPH verion that will hold ~115psi before the relief valve opens. however flow at these pressures is drastically reduced and amperage draw is significantly increased. you will need to contend with those obstacles along the way. I think DI in combination with PI is actually the best solution available especially when using ethanol based fuels. the cooling effect on the intake port and valve coupled with further cooling of the cylinder separately will give the most tolerable atmosphere for power. the heat removed from the charge air will be very efficient and the intake ports remain clean and free flowing. best of both worlds, an the DI operates at part throttle conditions offering maximum fuel efficiency and crisp drivability. hard to go wrong there. I also think that once you start trying to spray as much fuel through DI as a 1000+ whp small displacement engine is going to need, you inevitably start getting into the issue of wall washing the cylinders and removing oil from lubricating the rings. this will promote increased wear and heat as well as drag robbing horsepower. the thin film of oil helps fill the micro voids in the cylinder wall and increase heat transfer from the piston to the cooling system. With PI, (sequential at least) the injector is fired shortly after intake valve closing which then uses the heat generated by the following power stroke to draw heat out of the intake valve for its liquid to gaseous phase change. It also pulls heat out of the intake port walls and dead charge air in the port which condenses it allowing room for additional air flow (this offsets a lot of the volume the fuel actually takes up). When the intake valve opens there should be minimal fluid state fuel remaining allowing for the DI to handle the fine tune feedback fueling. and pulling heat out of the crown of the piston helping take some of the load off the rings. this is a bit more indepth look at benefits to the dual fueling system. Chris
    73 replies | 2091 view(s)
  • Jeffman's Avatar
    Today, 01:16 PM
    Hey @Msport335, Your log looks really similar to this one I did about two weeks ago: To get even higher boost, I've installed N20 TMAP and use MHD MBoost option with 3 pt scaled TMAP. I'm still dialing in my tune as my boost pressure are 25+ on my stockers (!!! Holy S&$T) I did last week which over torqued my transmission and sent me to the side of I95 in Philly for 2 minutes while I cleared the codes. Check out the log which I believe gives about 400 HP / 520 ft-lb on stock turbos, stock DP and stock inlets. I think I'm f$&@ing lucky...
    110 replies | 6113 view(s)
  • richpike's Avatar
    Today, 12:51 PM
    Rumors are swirling Evans is on the chopping block. He's a duesch canoe of the highest order. Hopefully he gets the boot and the rest of the team gets down to business. -Rich
    27 replies | 2370 view(s)
  • Chris@Boost Concepts Inc's Avatar
    Today, 12:43 PM
    We don't have a "stage 3" what we will be offering will be substantially more, it will be geared for the market looking for all out power capped by the other vendors offerings. we will also release a simple 2 pump bucket but that will be closer to fall most likely. We are currently working very hard to bring these products to market but a few design changes along the way have happened to make the product powerful yet simple to install. as with anything when a change is made there is a increase in lead time. we are on schedule to release Port Injection in the next 3-4 weeks and probably 5-6 weeks for the first batch of the modular fuel pumps to go out to selected beta testers for independent field review. Thanks! Chris
    114 replies | 5827 view(s)
  • ajehoti's Avatar
    Today, 12:26 PM
    ajehoti replied to a thread Motor build in N54
    What does your build consist of ??
    14 replies | 685 view(s)
  • The Convert's Avatar
    Today, 12:08 PM
    Anyone running one of the Motiv kits and water cooling their wastegate? I'm planning on doing this when I swap kits over, but want to see pics of how you guys have the plumbing run. I'd like to buy the fittings ahead of time if possible. Post pics if you have them, or if you've just seen a pic of it post that please. Thanks!
    0 replies | 50 view(s)
  • AdminTeam's Avatar
    Today, 11:32 AM
    Hey MartinaKue: :text-welcomewave:
    0 replies | 68 view(s)
  • LQQKOUT's Avatar
    Today, 11:14 AM
    Any updates on release date and price?
    114 replies | 5827 view(s)
  • torres_335i's Avatar
    Today, 11:01 AM
    torres_335i replied to a thread Motor build in N54
    Yes i will be testing mine soon as i get it back from Motiv
    14 replies | 685 view(s)
  • xbox_fan's Avatar
    60 replies | 1268 view(s)
  • Dane083's Avatar
    Today, 09:31 AM
    Can you shed some light on the N55 Stg 3? Will they be for the E8X platform as well? Will they likely be available this year? Thank you in advance.
    167 replies | 11599 view(s)
  • JC335xi's Avatar
    Today, 09:01 AM
    JC335xi replied to a thread E82/E88: Track Day Setup and Discussion in 1 Series and 1M
    FWIW, when I still had my XI I ran 400/600 with 255 square RE-11a for DD and Auto-x. Bearable on the street and competitive locally as long as this one guy with a Cayman on 305 Hoosiers didn't show up. lol
    68 replies | 2661 view(s)
  • zoist's Avatar
    Today, 08:37 AM
    Thanks again Terry :handgestures-thumb:
    5 replies | 283 view(s)
  • rac's Avatar
    Today, 06:21 AM
    rac started a thread dwell table changes anyone? in N54
    has anyone tried? i didn't find much searching around. i'd like to do some trial and error with this. have ordered a new set of coils so i don't stress about burning up the old ones while experimenting. but if someone's already done so please share any findings. thx.
    0 replies | 92 view(s)
  • LAUNCHMODE's Avatar
    Today, 06:07 AM
    No problem you can't get your questions answered without registering if they haven't been asked before!!!! Thanks for the welcome and I look forward to learning a lot more from you guys.
    1 replies | 206 view(s)
  • LAUNCHMODE's Avatar
    Today, 06:05 AM
    I am definitely headed toward a mission stage 2 w downpipes. I have seen the dme removal instructions but now I can't find them. If anybody knows where it is please post a link it will be utilized!!
    2 replies | 147 view(s)
  • Payam@BMS's Avatar
    Today, 05:14 AM
    38 replies | 1639 view(s)
  • Sticky's Avatar
    11 replies | 208 view(s)
  • Sticky's Avatar
    Today, 04:30 AM
    Stacking is actually pretty common. Considering how hard it is to find good mods for the N63TU I think you did a good job. I just don't get why it isn't 'responding' to piggybacks. You might want to look into a flash.... Oh, and welcome!
    2 replies | 147 view(s)
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