Black LS1 T/A

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by terry99ta:
<strong>I just ordered the #7 pulley, it'll be here thursday! yipee ati said I am safe since only seeing such low boost now.

they said to get the a/f ratio at 11.8 on top (what do they mean by that?)
</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I think they are recommending you have a Air/Fuel Ratio no higher than 11.8:1. Your richest should normally be at peak torque, I think, then tapering back off.

Mine is 11.7:1 at 6400 RPMs, where my peak RWHP is 486. My peak RWTQ is 487 at 5500 RPMs.

The problem is, I am losing power down low because I am below 10:1 A/F all the way to 5500 RPMs. So I've very rich untl nearly 6000 RPMs. <img border="0" title="" alt="[Sad]" src="gr_sad.gif" />

I'll fix that when my 12-bolt and new motor is here... I've got Ls1-Edit. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

highgmc

done! YIPEEEEEEEEEEE!!!!

now I feel good about the $5000 spent on the ati finally. I see just short of #5. now rather than my boost starting at 4500rpm it starts at around 2500-3000rpm.

fuel pressure is still 68ish, then drops to around 60 on boost, then at around 6000 rpms it spikes up to 80! This spinking up to 80 is what ati said to make sure it does. (I guess to make sure the fmu is working properly?)

this had to have made my car nearly a sec. faster!

did I mention last night I spanked a new stang gt from a 60mph roll! hehehehehehe <img border="0" alt="[Pontiac]" title="" src="graemlins/formula.gif" /> <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> <img border="0" alt="[Pontiac]" title="" src="graemlins/formula.gif" />

Todd2001SS

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by terry99ta:
<strong>done! YIPEEEEEEEEEEE!!!!

now I feel good about the $5000 spent on the ati finally. I see just short of #5. now rather than my boost starting at 4500rpm it starts at around 2500-3000rpm.

fuel pressure is still 68ish, then drops to around 60 on boost, then at around 6000 rpms it spikes up to 80! This spinking up to 80 is what ati said to make sure it does. (I guess to make sure the fmu is working properly?)

this had to have made my car nearly a sec. faster!

did I mention last night I spanked a new stang gt from a 60mph roll! hehehehehehe <img border="0" alt="[Pontiac]" title="" src="graemlins/formula.gif" /> <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> <img border="0" alt="[Pontiac]" title="" src="graemlins/formula.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Need to change the sig, #7 ATI.

Now I am dieing to get out and try mine! Thanks for the good news!

Todd

highgmc

installing my pulley now, came in for a break, only pita is removing the trans lines to get off the belt and install the new one.

cleaned the K&N and changed the charger oil while in there...
leaving fmu all the way rich until I get a dyno run in to check A/F.

VINCE

iTrader: (1)

Very interesting topic.. Could I run the small kit with my setup?

Todd2001SS

Changed to the 340 pulley from the 410 and really like it better. I see about 4-5 psi of boost near the top end which is where I thought it would be. Boost starts kicking in at 2500-3000 rpms, about 1 psi. Before there was nothing at 3000 rpms.

I am happy now. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

Off to the dyno again. <img border="0" alt="[Burnout]" title="" src="graemlins/burnout.gif" />

Black LS1 T/A

Cool! <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />

highgmc

todd,
please let me know your dyno results!