DTM Brian Posted June 5, 2008 Report Share Posted June 5, 2008 Ported Heads and Cams Ported Supercharger at 16 Pounds Pump Gas with 16 Degrees of Timing A/F between 11.4 and 11.5 http://75.180.18.248:50001/Dyno%20Graphs%20and%20Pictures./Dyno%20Graphs/Mike%20Buckingham.jpg Quote Link to comment Share on other sites More sharing options...
Reed44 Posted June 5, 2008 Report Share Posted June 5, 2008 Nice numbers brain. Why so rich? Or is that normal? I thought 13:1 was the best to have or is that for n/a applications only? Quote Link to comment Share on other sites More sharing options...
QUIKSVT Posted June 6, 2008 Report Share Posted June 6, 2008 Nice numbers for a safe street tune. Josh Quote Link to comment Share on other sites More sharing options...
JaSSon Posted June 6, 2008 Report Share Posted June 6, 2008 Nice numbers brain. Why so rich? Or is that normal? I thought 13:1 was the best to have or is that for n/a applications only? 13:1 is a little lean period. That's a good AF for a FI car. 13:1 and it'd explode. Quote Link to comment Share on other sites More sharing options...
Nate1647545505 Posted June 6, 2008 Report Share Posted June 6, 2008 13:1 is a little lean period. That's a good AF for a FI car. 13:1 and it'd explode. Not with the correct timing Lots of ULEV/LEV engine's (even with forced induction) will run close to stoic as possible, for as long as possible. Quote Link to comment Share on other sites More sharing options...
2highpsi Posted June 6, 2008 Report Share Posted June 6, 2008 Not with the correct timing Lots of ULEV/LEV engine's (even with forced induction) will run close to stoic as possible, for as long as possible. I thought 11.5 was spot on for a FI car. I know of guys running 12.0 (Not on pump gas though) Maybe, MAYBE an e85 FI car with mad retarded timing I could see 13.0. But with 13.0 AFRs+ pump gas + any real amount of boost = Serious detonation = engine death Quote Link to comment Share on other sites More sharing options...
2highpsi Posted June 6, 2008 Report Share Posted June 6, 2008 E85 is some amazing stuff for forced induction cars by the way. I've seen some UNREAL boost and timing using it. Its is super knock resistant. Quote Link to comment Share on other sites More sharing options...
Nate1647545505 Posted June 6, 2008 Report Share Posted June 6, 2008 I thought 11.5 was spot on for a FI car. I know of guys running 12.0 (Not on pump gas though) Maybe, MAYBE an e85 FI car with mad retarded timing I could see 13.0. But with 13.0 AFRs+ pump gas + any real amount of boost = Serious detonation = engine death 11.5:1 is spot on for best power & combustion temperature control for that setup (2x the cylinder density). Brian's tune is fantastic, no way am I questioning his work. Notice the key words: as close as possible and as long as possible. Every AFR has a unique spark timing curve. Whether operation can happen without detonation or large operating temperatures is conditional both on the engine design and operating condition. Quote Link to comment Share on other sites More sharing options...
Nate1647545505 Posted June 6, 2008 Report Share Posted June 6, 2008 This is a somewhat decent example: LEV 2, 2007 STI, factory tune: http://img341.imageshack.us/img341/345/afrboostvc3.jpg Quote Link to comment Share on other sites More sharing options...
crewsy49 Posted June 6, 2008 Report Share Posted June 6, 2008 Nice numbers...Mine let loose on a pull with stock heads and 16.5 boost at 17 degrees timing at 432/499...I am having ported heads and better cams done now so it kind of lets me see where I could possible be when it is completed. Quote Link to comment Share on other sites More sharing options...
2highpsi Posted June 6, 2008 Report Share Posted June 6, 2008 Notice the key words: as close as possible and as long as possible. I gotcha. Yeh that WRX log is believable. lean for a second, then more towards the rich side. It looks actually like the ECU is looking for a target of close to 11.0 on that log for the most part. Had the line been 13.0 flat across, the motor would be toast. Thats all I meant. I shoulda read your post a little better I guess. Quote Link to comment Share on other sites More sharing options...
schmuckingham Posted June 6, 2008 Report Share Posted June 6, 2008 Brian, i again thank you very much for getting up a little early and taking time out of your day to tune my truck. Both times Brian has tuned my truck he has been professional and never did anything questionable or without my consent. I couldnt have asked for any a better tune from the setup i have. Like some others have i HIGHLY reccomend Brian for any Ford tuning, he knows his stuff quite well. We could have pushed the timimg more but Brian and myself were happy the way it was especially for a street tune. Other factor was i have 100% stock intercooler system except for maybe some Water Wetter, so after i get a Killer Chiller or a Icey Res i'll go back and see what we can do. Quote Link to comment Share on other sites More sharing options...
crewsy49 Posted June 6, 2008 Report Share Posted June 6, 2008 Mike, sounds like you have the red beast ready to go now...Naturally, this 90+ degree air is all we need...Yes on the Killer Chiller for sure. Quote Link to comment Share on other sites More sharing options...
phil Posted June 6, 2008 Report Share Posted June 6, 2008 impressive numbers Quote Link to comment Share on other sites More sharing options...
schmuckingham Posted June 6, 2008 Report Share Posted June 6, 2008 Mike, sounds like you have the red beast ready to go now...Naturally, this 90+ degree air is all we need...Yes on the Killer Chiller for sure. Thanks Dave, yea the humidity and heat is killing me impressive numbers Thank you sir, much appreciated Quote Link to comment Share on other sites More sharing options...
Nate1647545505 Posted June 6, 2008 Report Share Posted June 6, 2008 I gotcha. Yeh that WRX log is believable. lean for a second, then more towards the rich side. It looks actually like the ECU is looking for a target of close to 11.0 on that log for the most part. Had the line been 13.0 flat across, the motor would be toast. Thats all I meant. I shoulda read your post a little better I guess. Not your fault, I think I put the emphasis in the wrong area. One thing to keep in mind: LRBT - Least Rich, Best Torque. Additional fueling controls combustion and component temperatures - to a point. Their main point is keeping the catalytic converter somewhat operational, and cool. Quote Link to comment Share on other sites More sharing options...
Doug1647545489 Posted June 6, 2008 Report Share Posted June 6, 2008 Doesn't your truck have a built bottom end? Needs more blower or turbos. But instant torque FTW. Quote Link to comment Share on other sites More sharing options...
04silvrz Posted June 7, 2008 Report Share Posted June 7, 2008 pretty need. i love SLAMMED trucks. would be dope to have a slammed FAST truck. Quote Link to comment Share on other sites More sharing options...
Reed44 Posted June 7, 2008 Report Share Posted June 7, 2008 Ok, I was just wondering. I by no means was questioning his work. Just getting a better understanding of what cars A/F ratio is under certain conditons. Quote Link to comment Share on other sites More sharing options...
schmuckingham Posted June 7, 2008 Report Share Posted June 7, 2008 Doesn't your truck have a built bottom end? Needs more blower or turbos. But instant torque FTW. It does need a bigger blower Quote Link to comment Share on other sites More sharing options...
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