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  • Alpine's Avatar
    Today, 01:57 AM
    Been a while since I updated this so here's a quick update: New turbo has been in for about 2 weeks now. Zero issues and pulls perfectly as before. Still debating what direction I want to go with boost control and fueling. I'm half tempted to wire up the Aquamist Kit I'm trying to sell. Then again a stage 3 LPFP and PI with Haltech 1000 for control would be ideal. The M3 rear sway bar and new bushings (ECS Kit) has definitely cured a lot of my under steer issues, however it's also exposed the weakness of the H&R Xi Coilovers. Long story short, I need new front end links and to swap over to fully adjustable coils. It's fine for now but the rear is so bouncy and harsh as compared to with the stock rear bar and bushings that daily driving comfort has really suffered. I'm stopping by V.I. engineered Thursday to get my exhaust redone (the original fabricators from Ar Design run this place, top notch crew, new shop). No more stock mid pipes with race cats and Corsa mufflers. The crossflow with the X pipe makes for a unique sound but it's not ideal. Gonna shoot for 3" all the way off the Downpipe with a high flow vibrant cat and resonators. Should be pretty clean without any drone on the highway. We'll tinker with it though to get the sound I'm looking for. Finally, I'm registered for the Colorado Mile this weekend. Should be a great opportunity to REALLY stretch the legs on this setup and see what it's capable of without being at my ultimate whp goal. I'll be sure to get video for everyone.
    65 replies | 5370 view(s)
  • Vbp6us's Avatar
    131 replies | 5042 view(s)
  • OffensiveDriver's Avatar
    Today, 01:22 AM
    I guess no one picked up on the Kisler Cylinder Pressure Transducer ? This appears to be created by space aliens. Interesting read.
    24 replies | 787 view(s)
  • jputtho2's Avatar
    Today, 12:42 AM
    Yep, we agreed it was 1 and 1 (because it was no matter our excuses lol). I was trapping 106mph in the 1/8th that same day (only 2 passes) not leaving on any sort of 2-step or antilag so it bogged bad off the line and didn't come back into boost till well after the 60' which killed both e.t. and trap. At that boost level and a good launch I should be all day 6.80's in the 1/8th. I didn't intend on doing the 1/8th actually but last minute decided to. I literally finished the car the day before and pulled it off the dyno in the afternoon and loaded it on the trailer to head up. I'm also running around 10psi less (150-170whp less) that weekend than what I will be running once I get the new fuel system installed later this week.
    32 replies | 1891 view(s)
  • Aaron's Avatar
    Today, 12:38 AM
    No, in fact every ITB system I've ever seen opens every TB at the same time on a common rail. They also don't open and close like your valves, the plates are held open throughout the firing sequence so long as your throttle pedal is down. Go look at an E46 M3 system, all 6 plates are on a common rail. You go WOT, all 6 plates open 100% and stay that way. Whatever man, you'd argue that the earth is flat. It very well would, and it'd give us the opportunity to design a proper feeding plenum, which would help low speed response, equal cylinder fill, and high RPM power. The N54 would really respond well to a properly setup ITB manifold, and personally I don't think it's that hard or expensive to produce. Stay tuned, I've been working on one.
    24 replies | 787 view(s)
  • AdminTeam's Avatar
    Today, 12:33 AM
    tamnh4, we appreciate you taking the time to join.
    0 replies | 42 view(s)
  • mal97's Avatar
    Today, 12:07 AM
    I'd think it would help fill all cylinders equally, especially under boost when the air is more dense, and even more during higher engine speeds when the air is both dense and turbulent in the plenum. But, I could be wrong.
    24 replies | 787 view(s)
  • Sticky's Avatar
    Yesterday, 11:59 PM
    I'd love to hear your reasoning on why IDP's serve more of a point when boosted than when NA.
    24 replies | 787 view(s)
  • The Convert's Avatar
    Yesterday, 11:57 PM
    Short answer is no. Cylinders need tb opened at different point in rotation.
    24 replies | 787 view(s)
  • Sticky's Avatar
    Yesterday, 11:53 PM
    I see your point about the warranty but didn't we have a guy struggle with getting Dinan to come through on a warranty claim?
    2 replies | 137 view(s)
  • Flinchy's Avatar
    Yesterday, 11:49 PM
    No haltech elite no care :p
    100 replies | 5824 view(s)
  • Weehe's Avatar
    Yesterday, 11:49 PM
    Weehe replied to a thread New JB4 safety in in action in N54
    Yeah was just a joke. You can see the fire hose he has on your site. Always great to see new features.
    11 replies | 404 view(s)
  • ferocity02's Avatar
    Yesterday, 11:44 PM
    I don't see why you couldn't drive all TB's off a common shaft, maybe with a pushrod system, and place the stock TB motor on the end of the shaft. There would probably be some tweaking required in the DME to retain stock-like drivability, especially at light throttle and off-idle. Cool project, but like the others, seems like an incredibly expensive project for the minimal gains.
    24 replies | 787 view(s)
  • BlackJetE90OC's Avatar
    Yesterday, 11:43 PM
    Honestly I would probably go ahead and spend the extra $100 on the Dinan piggy. A little cheap insurance, the off chance something goes wrong and you might have Dinan on your side. Yes I now people sh*t on their warranty and prices. In this case, whats another $100.
    2 replies | 137 view(s)
  • Flinchy's Avatar
    Yesterday, 11:39 PM
    10 digit number on it on a tag somewhere?
    76 replies | 4995 view(s)
  • mal97's Avatar
    Yesterday, 11:22 PM
    I see, is it common to do the same on S54 turbo builds?
    24 replies | 787 view(s)
  • Flinchy's Avatar
    Yesterday, 11:16 PM
    You should talk to jyamona@motiv then maybe
    100 replies | 5824 view(s)
  • AdminTeam's Avatar
    Yesterday, 11:12 PM
    Welcome to a real enthusiast forum mattrubi.
    0 replies | 79 view(s)
  • Flinchy's Avatar
    Yesterday, 11:12 PM
    only car I know of is rb26 and even then, they delete itb's and go a big single to make good power.
    24 replies | 787 view(s)
  • Aaron's Avatar
    Yesterday, 10:54 PM
    There is a point, actually more of a point than there is in N/A motors. Your understanding is incorrect. Although it works the same in principle (More air), you act as if boost is free. It isn't. Increasing boost has many negative side affects, it costs power to increase boost, it raises IAT's, it puts more pressure on your turbo and charge pipes, creates more heat, and doesn't help off-boost performance. CFM > PSI. If we can increase CFM without increasing PSI, that's the ultimate goal. But now you're slower, and use more gas. I like the M3, don't get me wrong. But a FBO N54 embarrasses the M3 in everything motor related. Care to explain why? And what advantage does twin throttle bodies have?
    24 replies | 787 view(s)
  • Terry@BMS's Avatar
    Yesterday, 10:46 PM
    Terry@BMS replied to a thread New JB4 safety in in action in N54
    Helping customer via email so I don't know what their forum name is. The spray pattern is probably horrible due to the large nozzle size and meth bungs that are too tall. I suggested he go to 180 degree apart CM10s to evaluate.
    11 replies | 404 view(s)
  • Terry@BMS's Avatar
    Yesterday, 10:45 PM
    Terry@BMS replied to a thread New JB4 safety in in action in N54
    There are a host of other changes we're playing with but since fueling related safety systems have become a discussion point recently I figured i'd share the details on it. I think we also found a way to "reduce" the port injection backfires during manual trans shifts. Waiting for some customer feedback on that though.
    11 replies | 404 view(s)
  • Terry@BMS's Avatar
    Yesterday, 10:43 PM
    Terry@BMS replied to a thread New JB4 safety in in action in N54
    Exactly. Since the JB4 reads that data real time in the background it's always active regardless of whether or not the interface is selected to display the bank2 trims or not.
    11 replies | 404 view(s)
  • AdminTeam's Avatar
    Yesterday, 10:34 PM
    Welcome to a real enthusiast forum sontaichinh.
    0 replies | 85 view(s)
  • AdminTeam's Avatar
    Yesterday, 10:29 PM
    aaronnguyen2103, we appreciate you taking the time to join.
    0 replies | 81 view(s)
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