Just wondering how many out there found max power with more than 26* timing wot between 4000 and 66oo rpm?

 

Any help appreciated, TIA.

 

Most (if not all), IMO.

<small>[ July 31, 2002, 08:28 PM: Message edited by: Colonel ]</small>

 

P.S., I'll move this to the Computer Diagnostics and Tuning section... <img border="0" alt="[Burnout]" title="" src="graemlins/burnout.gif" />

 

i just have a cam and 11.3 compression. i havent tuned it yet, but my timings at 29@WOT with 0degrees knock. pulls like a **** <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

 

Mine is 26 degrees of timing now. I am changing it to 28 degrees soon. I will let you know what happens..

 

Thank all of you guys for useful replys, i am looking to estimate how much power i am leaving on the table with out pcm tuning on a 2001 m6 Z28 with everything done other than headers or tuning. I have leaned translator down to make 375 hp and 360torque , but max timing is 26*, i think more timing and extra fuel would make sweet difference. Anymore input would be greatly appreciated!

 

ttt.

 

When I was cam and headers my timing was 30 to 31 at WOT.. I think 29 degrees will show you a nice gain across the board..

 

You can't really compare timing like that across combinations. On ported heads chamber design (flame speed, cylinder filling (flow/velocity), charge quality, etc.) can all have pronounced effects on timing requirements. Throw in a different cams with totally different overlap/cylinder pressure characteristis, then headers, exhaust, etc. and you have too many variables.

Chris

 

ed wright sets the timing to 30 for are stage 2 heads and cam, 10.8 compression, no knock.

 

i have a cam only and made peak power at 30 degrees. anyone else running high timing with 0 knock?

 

I'd be curious to see what HP changes you've found from going from, say 27* up to 29 or 30?

On a dyno (heads/cam car) I noticed 0 HP gain (peak and curve).

Mark

 

I just tuned my corvette. I added 2 degrees of timing on the high table and bumped the low table to 27 degrees. The car is day and night difference from before. I uploaded the stock program and the car falls flat on its face. Stock programming put down 421/400 at the wheels.
Phillip