9psi with 100 octane. Set timing to what?
09-19-2002, 09:55 AM
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9psi with 100 octane. Set timing to what? What would you guys suggest. I actually run 110 but its good to be safe. This is not my daily driver by the way.
Justin
Justin
09-20-2002, 12:15 AM
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Re: 9psi with 100 octane. Set timing to what? Was tuning on a friend's car last night. We started very conservative (18 degrees) and worked our way up. But he has MTI Stage 2 heads, blower cam, 9.2:1 forged bottom end, and a huge fuel system.
We ended up with 24 degrees total timing and zero KR blasting down the street on 92 octane. We left the A/F very conservative becasue we were using O2s for tuning. They were still running about .94-.95.
We will see hopw he does at BG this weekend, and then play with it some more at Norwalk on the 27th.
If you are still on the stock bottom end, I would keep you total timing around 18-20 deoending on fueling. If you are not seeing any KR, then creep it up a little. Whatever you do, do not defeat the knock retard sensors!
We ended up with 24 degrees total timing and zero KR blasting down the street on 92 octane. We left the A/F very conservative becasue we were using O2s for tuning. They were still running about .94-.95.
We will see hopw he does at BG this weekend, and then play with it some more at Norwalk on the 27th.
If you are still on the stock bottom end, I would keep you total timing around 18-20 deoending on fueling. If you are not seeing any KR, then creep it up a little. Whatever you do, do not defeat the knock retard sensors!
09-20-2002, 11:52 AM
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Re: 9psi with 100 octane. Set timing to what? Yep! He'll be running at BG this weekend to see how it's going. Then next week, the smaller pulley goes on and off te Norwalk for some tweaking on Friday. Should have him in the 10s if everything stays together <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Todd
Todd
09-20-2002, 07:33 PM
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Re: 9psi with 100 octane. Set timing to what? hey justin,
i have lower compression pistons ( about 9.4 :1) and i have my timming set to 27 deg!
your best bet is to tune on a dyno with a wide band . this way you could dial in your A/F too.
good luck.
i have lower compression pistons ( about 9.4 :1) and i have my timming set to 27 deg!
your best bet is to tune on a dyno with a wide band . this way you could dial in your A/F too.
good luck.
