Nope....No such thread exists. Sal posted on another thread about this saying that those numbers are trade secrets and would prefer not to give out free tuning info to his competitors customers. I really can't fault him for that, I probably wouldn't either.

On wether or not the 6lb over pulley is compensated for by the factory computer....I dunno. Maybe that is a no-win question.
If a tuner says the computer can compensate...then someone does it and blows a motor....he will blame the tuner. If a tuner says it is a bad idea to run 6lbs over...someone will come along and say they've done it for years. See...no win!

I use a chip with my 6 lb over for the H.P. gains and to "help" the computer to select proper trims at WOT.

That's it for me on this thread.....

Rocks

 

Just remember that the earlier Lightnings had a much
stronger motor, and when Ford changed all the programming
parameters and such for the 2002 they really cut back
on what was possible. I have seen most major tuners
state that there was much you could do to the earlier
trucks, and not so much to do with the newer ones UNLESS
you wanted to buiild a motor first.

 

What made them stronger?

 

maybe someone should where to buy a pulley or
who makes the best pulley and the tuners
will be all over this thread

 

all i know is when i put my 4# pulley on the gas milage went to **** so the computer is doin somthing

 

So has anyone answered the original question? Does anyone have a #6 pulley with A/F numbers?
Jes

 

I have saw first hand on an 02 lightning. He ran no higher than 12:1 other than at idle to 1000 rpm where it fluxed past 15:1 then dropped to less than 11:1 very quickly. Under full throttle he was close to but did not go over 12:1 on three pulls. This was with a 6 lb pulley and no other mods. He is currently adding headers along with high flow cats and mufflers, cold air intake, throttle body, different valve body and electric fan. As soon as he gets this all done he will dyno it again. He will install every thing, or I should say I will, once he gets all of this.
I was there when it was dyno'd and installed the pulley for him since I had the tools to take the original one off. So I know it was a 6 pounder. I am not saying all trucks will do the same but you asked for someone who had saw this on a dyno and that is the a/f ratio he had. The temp in the test area if I remeber right was 66 deg f.

 

Thanks for some #s.Those look safe enough for me.I also think that at an idle,a pully will make absolutly no difference because any extra boost would just be bypassed due to no load.........

 

Interesting side-note... I just tangled with an 03 Cobra and we rolled down the windows to exhange pleasantries, etc. He rattled off an extensive number of mods, including a 6-lb pulley. I asked if he had a chip and he shrugged and said "Chip? nope." Apples and oranges I know.... but interesting nonetheless.

 

FI and LT1/Ls1 edit problem stem from the calculations to develop load (LT1 uses a 1 bar MAP and LS1 calculates it via MAF vs theoretical). Basically it is a timing issue not fueling. As for fueling, PE tables are RPM based and that + the desired AFR is a simple and accurate derivative of the MAF readings and LTFTS developed during OL from O2 feedback. Unless you are compensating for nonlinear output from the injectors or delivery of fuel to them (or pooling of fuel), any calculations for the PW will be correct. The same should hold true for the Ls. Validation is just a Horiba wideband away.

 

So tell us more? Did you hang with him?

 

Hehe... I lunged ahead at the light and held him off til 2nd gear then he reeled me in... I didn't mind losing though.

 

Definately a difference. Jim@JDM was able to get almost (or he did,not sure) 500 RWHP with NO chip in the 03 test cobra.

VINNIE