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-   -   timing vs octane question (https://www.homemadeturbo.com/hybrid-tech-8/timing-vs-octane-question-79651/)

funk.regulator 07-12-2007 01:10 PM

Re: timing vs octane question
 
Ive got Wiseco's. No problems yet.

My car was tuned with 91 but I no longer have that option where im living now. Its either 89 or 93. It was a conservitave tune on the 91 so Im sure Ill be safe with a bit of timing increase. I was just looking for a bit of confirmation.

Slo_crx1 07-13-2007 01:20 AM

Re: timing vs octane question
 
I honestly wouldn't touch the timing if you're only jumping to 93 octane. If you were going to run 100+ octane all the time then you could strap it on a dyno and advance some timing, but keep in mind pump gas does tend to vary a bit so tuning timing to the edge is really not a good idea.

For that reason I'm leaning more towards running my ls/vtec build at a conservative 10:1 compression, that way I can increase timing near the base and a bit through the top rpm to increase the torque curve a little more along the bottom rpm range and keep it singing through the rest of the rpm band. Boost tuning is just like high c/r tuning (with of course the exception that boost compression varies throughout) in the effect that the higher the c/r (static or otherwise), the less timing you want. Increasing timing also increases temp, which also aids in detonation. Just some food for thought. ;)

ososlohatch 07-13-2007 01:30 AM

Re: timing vs octane question
 
ill push you dizzy to the fire wall for free ;) 2-3 degrees would prolly be fine but your not going to really gain a whole lot and prolly not worth the time to tune it


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