View Single Post
      06-16-2011, 01:28 PM   #47
hotrod182
.
 
hotrod182's Avatar
 
Drives: 07 335i, 06 M3
Join Date: Dec 2006
Location: California

Posts: 3,461
iTrader: (0)

Quote:
Originally Posted by dzenno View Post
You have to realize you're talking peak boost as well...your boost curves don't look anything like what Cobb stage 1 is running..in your case you're holding 15psi to redline (from n54tech logs I looked at)...in case of Cobb they are at 14psi at 4500rpm, 13.5psi at 5500rpm, 13psi at 6000rpm, 12.5psi at 6500rpm, 12psi at 7k rpm...if it held 15psi flat to redline, well who knows but you get the point...another thing is I really didn't try to pull off any record runs, I was driving through Mexico had my iPhone in my hand no traffic and thought hey why don't I record a pull started a pull at 105km/hr from "cruising" and lost a bunch of time building boost and timing and ramping acceleration up from there...had I really tried to pull off the best time I could it would've been way better to accelerate in 3rd gear from about 3500rpm so full boost and timing is there and already accelerating while hitting 105km/hr...you know what I'm talking about maybe try setting up your car with a boost curve like the cobb stage 1 and run the car and post a video Add about 4deg of CPS offset on top of that as well as Cobb targets 10deg at redline, oh and if you really want to compare dial your AFRs so they're mid to low 12s through midrange and high 11s 6k rpm to redline

No worries, I'll try to have a few more videos over the coming days when I make it down to Mexico..
Don't get me wrong, being in the 9 second range without meth/race fuel is phenomenal. Meth gives me about a 4-5mph boost in trap speeds! So either way you go...performance is impressive. I don't mind meth, because I love the lower IATs going in the engine...but for most people the RBs might be more practical..if not harder to install though. Can't wait to see your 60-130 times soon.
__________________
2011 Alpine 335d M-Sport 12.34 @ 110.48mph
2012 LEAF 130MPGe
2008 Black 335i Sedan. 11.11@ 129.47 mph,(8.39 sec 60-130 stock turboWR)
2008 Monaco Blue JB3 2.0 335i Coupe. 11.33 @ 132.77 mph (N54 trap speed WR)
60-130mph: 6.95 seconds stock turbo WR (.16% slope)
hotrod182 is offline  
0
Reply With Quote