if it was me, id puill the file and look at the load to fuel ratio table. if there was nothing, and the wideband is NOT the issue, i'd turn learning off and do a few street pulls.
reconcile the difference between commanded a/f and actual.
the dyno loading, and you car loading matters. IE, you have a 2800lb car and the dyno loads it to 3500. load will never reach 80-100 percent at points and maybe the table needs correcting.
datalog the maf. look to make sure you are not pegging it because the transfer function is wrong.
id look to the maf transfer function or injector slope settings if there are no hardware or load to commanded a/f errors.
I know that sometimes there is difference but not that much.. did they tune the transfer by free reving the engine or rolling in on the rollers? also if on the rollers were the rollers loaded? what ecu is this and whats being used for tuning? but actually what do the dyno guys say?
I searched through the forums and couldn't find a post that really answered all my needs so hopefully this doesn't break any rules and sorry if I do but I am in highschool and I'm new to building cars. I am getting started to build a 331 stroker turbo build that's mainly a street car but I will...
I have an on3 kit for my fox with a 7675 precision turbo and a 45mm Turbosmart wastegate. The wastegate has a 7 lb spring in it and at 5100 rpm the boost is at 12.4 according to my tuner. Car is currently there. We are trying to figure out what to do. He thinks it’s where the wastegate is...
I'm giving serious consideration to one of these kits for my mostly street weekend driver notch. Mild build so far: GT-40 heads, Exploder intake, 24lb inj., yada, yada. Looking to make 450-550 rwhp. I'd like to retain the A/C and front sway bar too. What's your experiences and impressions with...
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