How much timing for 18psi

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11-09-2006 | 08:14 PM

xxsaint69x

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Joined: May 2000

Posts: 2,889

From: Peachtree City, GA

How much timing for 18psi

how much timing should i throw at it?
8.5 compression and 18psi

on 93 pump gas.

also what A/F ratio should i be shooting at...12.00 good enough?

Last edited by xxsaint69x; 11-09-2006 at 08:57 PM.

11-10-2006 | 12:16 AM

Lisa33

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Joined: Jan 2003

Posts: 505

From: Sweden

Oure setup
8.5 comp, OBX4"FMIC and a M10 nozzle widh water/alky.
timing is 26degrees and A/F 11.7-11.9
have tried a 60hp N2O shot also widhout any spark retard.

11-10-2006 | 08:06 AM

xxsaint69x

Thread Starter

Registered User

Joined: May 2000

Posts: 2,889

From: Peachtree City, GA

sweet..i don thave any alky so ill stick with around 20

btw how much boost do u guys think ill gain goin from a 4.20 pully to a 3.70 pully..the crank is stock at 7.65 i believe....making 13-14psi with it..

11-10-2006 | 03:35 PM

Schurters LT1

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Joined: Sep 2002

Posts: 1,942

From: kitchener/Ontario

I would start around 18* and work your way up from there.........better to be safe......

You should look into getting ALKY if you want to run that kinda boost and timing all the time......