455GTO

iTrader: (18)

First off let me say that the tuner is a friend, and has tuned roughly 6 cars and is by no means an expert. He has HP tuners and has the program down, but I'm sure a more knowledgeable tuner would not have run into the problems we did.

Idle was stuck between 17-22AFR... No mater what changes he made he could not get the idle down into the 15's... We weren't sure if this was due to the cam but it was quite frustrating. This was also the issue with part throttle, it was very lean around 20-25 until you stepped on it a bit... Maybe some one can chime in with why no fueling could be added... There was no knock present but it was just lean...

He made a few changes and we started doing WOT tuning and it went great! There were no fueling issues once we got into the WOT pulls. After 3 pulls we dialed in the AFR to about 12.6-12.8 throughout WOT.

The numbers far exceeded our expectations and I couldn't be happier with the tune and results.

The first graph compares the bolt on pulls to the cam pulls. Let me know what you guys think.

2002 Trans AM Ws6 M6
TSP Torquer V2 114lsa
Comp 918 Springs
Powerbond 25% pulley
TSP 1 3/4 headers
TSP ORY
SLP LM2
SLP Lid
Potz P&P throttle body
MSD Wires

nissan owner

iTrader: (1)

Very good results. Just curious do you have any videos of the dyno pulls?

455GTO

iTrader: (18)

No, no videos on the dyno. Wish I would have remembered.

Johnnystock

iTrader: (6)

Thats very nice without intake/heads/fancy exhaust!! Nice results!

k_garretson23

iTrader: (8)

are you on a stock fuel system? Thats a big cam for stock injectors and could be the reason behind running so lean.

455GTO

iTrader: (18)

Yes, stock fuel system. However once under throttle it is not lean and has plenty of fuel in the top end... Dont see it beeing a fuel system issue

HCI2000SS

iTrader: (2)

Nice job! It always amazes me how much dynos can vary lol

T/A KID

iTrader: (12)

Factory injectors or NO?

Im guessing aftermarket injector without the right data, and thats why you can get the injector msec down at idle to supply enough fuel.

455GTO

iTrader: (18)

Stock injectors and fuel system. Thinking it may just be the location of the wideband in the tail pipe causing the lean idle. Car drives perfect otherwise.

Sales1@Texas-speed

Very nice results!

Blackpanther99

iTrader: (8)

Impressive

02sslayer

iTrader: (4)

there is something about the TV2, ive seen that thing make crazy power more than once

randydry

Very nice post keep up the good work ............

kyleholt11

iTrader: (3)

Lean idle sounds like a vacuum leak...