Here's my dyno Run. Is this too Lean?
 

Got my car dynotuned yesterday and posted my results on LS1.com some felt I was too lean..

I do need to replace the intank fp because at about 5500 RPM's the A/F starts to drift up. I plan on taking care of that pronto.

VORTECH DYNO

Re: Here's my dyno Run. Is this too Lean?
 

What were the differences between the 2 runs?
I'd richen up the 2nd run between 2.5-4.2k more like the 1st run if it was my car.

You can be up to .5pt leaner on the street vs. the dyno. You run leaner on the street.

Re: Here's my dyno Run. Is this too Lean?
 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by MelloYellow:
<strong> What were the differences between the 2 runs?
I'd richen up the 2nd run between 2.5-4.2k more like the 1st run if it was my car.

You can be up to .5pt leaner on the street vs. the dyno. You run leaner on the street. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I think the Stock FP is borderline maxed. I hope with the new intank FP I can richen it up just a bit more.

The First run in red was the out of the box tuning. They said it did pretty well with my car but it needed a lot of work on the timing.

I'll have to call them and ask about this stuff..

Re: Here's my dyno Run. Is this too Lean?
 

Okay.. Apparently I took home the braggin Rights Printout.. <img border="0" title="" alt="[Razz]" src="gr_images/icons/tongue.gif" /> I'm closer to 440 because that dynosheet is run 4. I just called my Tuner and he pulled up Run 6 and said the A/F was dead on 12.0 all the way across the board until it hit the top end of 5500 where the stock FP was giving up.

No Knock Retard and the timing was clean.. None being pulled because they start off with pulling ALL Timing and they slowly add it back in until it gets to a point where it doesn't like it and then they back it off a degree.

-Brian.

Re: Here's my dyno Run. Is this too Lean?
 

Sounds perfect, congrats!

Having some Fuel Pump issues here too. Glad I found the probs before I threw the blower on. Better to find it now.

Re: Here's my dyno Run. Is this too Lean?
 

You definitely want to get that fuel delivery issue fixed <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Also you want to be richest at your torque peak and then lean to about 12.4:1 past your torque peak to RWHP peak (This is supercharged) NA you will want around 13:1 AF.
Cheers,
Chris

Re: Here's my dyno Run. Is this too Lean?
 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by MelloYellow:
<strong> Sounds perfect, congrats!

Having some Fuel Pump issues here too. Glad I found the probs before I threw the blower on. Better to find it now. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">I always wondered how they tuned force inducted cars. I was scared that they started out with full timing and then backed it out. You better watch out Brian, The supercharger goes on next week hopefully. Dont have this little LT1 out pull you. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Re: Here's my dyno Run. Is this too Lean?
 

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">
Having some Fuel Pump issues here too. Glad I found the probs before I threw the blower on. Better to find it now. I always wondered how they tuned force inducted cars. I was scared that they started out with full timing and then backed it out. You better watch out Brian, The supercharger goes on next week hopefully. Dont have this little LT1 out pull you. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> </font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif"><img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" /> Yeah man.. Don't end up like me.. All dressed up for some bigger numbers and have Fuel problems to hold ya back. Should be easy enough to take care of. I'll look into the racetronix plug and play intank unit or a walbro.

As far as you out pulling me. Psahh.. I wouldn't put it past you.. Mr Longtubes & Cam.. hehe. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

<small>[ March 01, 2003, 05:16 PM: Message edited by: StealthStalkerLS1 ]</small>