TFS/AI 383 dyno results (need tuning ha)
Thread Starter
Registered User
Joined: Dec 2004
Posts: 228
From: Marietta, Ohio
I always thought the higher the afr number was the more lean it was also, but i was told it was running rich by the guys there and the fact that it smelled so bad and would burn everyones eyes made me believe i was wrong and that it was running rich.
Whenever anyone would stomp the gas it puffs out black smoke like a rich condition as well, strange eh?
Gonna put my scanner on it this evening and see if it comes up with anything...
Thanks for the replies everyone
Whenever anyone would stomp the gas it puffs out black smoke like a rich condition as well, strange eh?
Gonna put my scanner on it this evening and see if it comes up with anything...
Thanks for the replies everyone
Registered User
Joined: Jan 2006
Posts: 325
From: Back in the US of F'in A
I dont plan on running it hard untill all is well, no worries.
I hooked a fuel pressure gauge up and ran WOT and thru town with the FPR and it held at 39-40psi at WOT and about 38 at idle. I disconnected the vacum line to it and the fuel pressure would go up or down a few PSI but nothing major. Few others took a look at it also and said it appeared to be operating fine, what do you think????
I hooked a fuel pressure gauge up and ran WOT and thru town with the FPR and it held at 39-40psi at WOT and about 38 at idle. I disconnected the vacum line to it and the fuel pressure would go up or down a few PSI but nothing major. Few others took a look at it also and said it appeared to be operating fine, what do you think????
I agree somethings up with the fuel pressure too. Idle (40 psi with reg and 45 with vacuum line to reg pulled) and it should jump up at WOT to around 45 not hang out around 39-40. (Wahlbro 255 should be enough to feed that beast......FPR jacked up????)
Thread Starter
Registered User
Joined: Dec 2004
Posts: 228
From: Marietta, Ohio
Ok i tried my scanner on it and it wont communicate
Dumb question but how do u up the pressure on the fpr? Which way do i turn the bolt thing?
I cant reach it but if i do i will need to know this...
ahhh fun fun fun....
Now theres a nitrous line running back there around the FPR some place (have nitrous installed but the bottle is sitting in the house untill its running right) of course i cant see where it plugs into
*EDIT** the nitrous line doesnt go to the fpr i dont think but i did pull the vacum line off of it. gonna run it like that this evening since that should, in theory, increase fuel pressure slightly...
keep the replies coming :-)
Dumb question but how do u up the pressure on the fpr? Which way do i turn the bolt thing?
I cant reach it but if i do i will need to know this...
ahhh fun fun fun....
Now theres a nitrous line running back there around the FPR some place (have nitrous installed but the bottle is sitting in the house untill its running right) of course i cant see where it plugs into
*EDIT** the nitrous line doesnt go to the fpr i dont think but i did pull the vacum line off of it. gonna run it like that this evening since that should, in theory, increase fuel pressure slightly...
keep the replies coming :-)
Last edited by coolraptor; Apr 21, 2008 at 05:00 PM.
Registered User
Joined: Mar 2002
Posts: 3,245
From: Ocala, Florida
I always thought the higher the afr number was the more lean it was also, but i was told it was running rich by the guys there and the fact that it smelled so bad and would burn everyones eyes made me believe i was wrong and that it was running rich.
Whenever anyone would stomp the gas it puffs out black smoke like a rich condition as well, strange eh?
Gonna put my scanner on it this evening and see if it comes up with anything...
Thanks for the replies everyone
Whenever anyone would stomp the gas it puffs out black smoke like a rich condition as well, strange eh?
Gonna put my scanner on it this evening and see if it comes up with anything...
Thanks for the replies everyone
Thread Starter
Registered User
Joined: Dec 2004
Posts: 228
From: Marietta, Ohio
black smoke/puffs = detonation.
I wont beat on it, i drive it like an old man anyway. Never planned on using the bottle untill all is well. I Took the bottle out so the cops wouldnt bother me about it anyway.
It wont be driven much untill its tuned and will be babied as well.
The fun never ends with these projects lol
Registered User
Joined: Mar 2002
Posts: 3,245
From: Ocala, Florida
oh God....
I wont beat on it, i drive it like an old man anyway. Never planned on using the bottle untill all is well. I Took the bottle out so the cops wouldnt bother me about it anyway.
It wont be driven much untill its tuned and will be babied as well.
The fun never ends with these projects lol
I wont beat on it, i drive it like an old man anyway. Never planned on using the bottle untill all is well. I Took the bottle out so the cops wouldnt bother me about it anyway.
It wont be driven much untill its tuned and will be babied as well.
The fun never ends with these projects lol
Thread Starter
Registered User
Joined: Dec 2004
Posts: 228
From: Marietta, Ohio
ya well its already got about 3k miles on it....
Guy wants to tune it this saturday if i can drive up there again. Its a few hours away from here so i dunno if ill be able to do it or not but ill lay off untill then..
Ok to clarify, 16.1afr, rich or lean?
Guy wants to tune it this saturday if i can drive up there again. Its a few hours away from here so i dunno if ill be able to do it or not but ill lay off untill then..
Ok to clarify, 16.1afr, rich or lean?
Last edited by coolraptor; Apr 21, 2008 at 10:58 PM.
Registered User
Joined: Mar 2002
Posts: 3,245
From: Ocala, Florida
Extremely lean. I'm actually surprised your motor is still in one piece, hopefully it's fine internally. Most N/A tuners shoot 12.5-13.0 on N/A cars.
Registered User
Joined: Oct 2001
Posts: 2,525
From: SoCal
Registered User
Joined: Oct 2001
Posts: 2,525
From: SoCal