have a question though even though car really flys now i want to go up to the 75 shot ,but zex says i need to retard timing by i think 4 degrees ,is this true when going up to 75 shot ,and if it is true how do i do this ,retard the timing that is ????????

emrald green 95 esi ,custom ram air , msd ignition,bored tb, afx udp,pacesetter headers,individualy grounded hotter plugs,half way gutted interior 2610 lbs stock wheels no more ac completly removed including all the brackets no more powersteering 50 shot zex
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14.4 96mph best

I dont think it would hurt to change ure timin if your gonna use a 75 shot, but it isnt absolutely necessary... You would need to get a new set of cam gears (either AEM, OBX, etc..) and retard the intake gear timin +4
The best way really to retard your timing perfectly is to put it on a dyno, but I know that not everyone has one around them... You can get a set of adjustable gears online for like $300 or so...

Deutsche automotives für das Leben!
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I was just curious about the timing. I thought you retard the exhaust cam because it has the position sensor on it? I'm new to this and am curious. I've got a 75 shot on my car. When I run both cams at 0, the timing line on the plugs is too high. When I run the exhaust cam 2 degrees retarded, it pulls a lot harder. I'm gonna get on a dyno within a week or two and see how it goes...

~Luke
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1969 Cougar - 11.91 - 380HP
2007 GSXR 750
1999 OZ - SOLD - 15.26 NA - 14.71 on 75 shot

wrong timing guys, you want to retard IGNITION timing not cam timing, you need a MSD ignition like the dis2 which is capable of retarding ignition timing but not advancing it, which is fine cause you want it retarded. and a little retarding is just a good measure to prevent detonation

1998 dodge avenger 4 cyl AT
Mods are:
Not enough

I know it has to be ignition timing. I don't have a problem with detonation anyhow. The exhaust cam retard is what I was told to do in the event of detonation since you can't retard the ignition timing with the stock ignition.

~Luke
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1969 Cougar - 11.91 - 380HP
2007 GSXR 750
1999 OZ - SOLD - 15.26 NA - 14.71 on 75 shot

dont mess with the timing for the gears themselves on a stock drivetrain. get a programmbale dis-2 and change the ignition timing like ^^ said or you are gunn have MAD problems....

who told you to mess with the exhaust cam....
_________
96 talon esi-t
san clemente, ca

Uberingram> I bow down to the Geo

I've got a P&P intake, bored TB, & #14 cams. I know when I retard the exhaust cam 2 degrees, it makes a huge difference when spraying. The guy that had the car built is who told me to run it like that. He also said to retard the intake cam, but I don't see how that would play any part in timing since it doesn't have a position sensor on it. When the exhaust cam is at 0, the timing line on the plugs is a little too high. When I run it 2 degrees retarded, the timing line is a little high, but closer to where it needs to be. Also, the fuel ring on the plugs is perfect when it's ran -2 degrees...

~Luke
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1969 Cougar - 11.91 - 380HP
2007 GSXR 750
1999 OZ - SOLD - 15.26 NA - 14.71 on 75 shot

I wouldnt retard the ignition timing for a 75-shot. you should be ok long as you use it wisely.
http://www.kaptainmyke.com/forums/uploads//post-15-1057888737.jpg1997
1999 Black C5
Silver RS
Wiseco 8.8:1 Pistons(back to low compression!)
Eagle Rods
T3/T4 Turbo
Custom FMIC
Greddy Exhaust
440's
Most current 1/8th mile time: 8.3@90mph 2.015 60'(Nitto Drag radials, i suck)

I was debating on going a little higher (100 shot), but I don't have a way to retard the timing. The timing line on the plugs is a little high, is there a module I could buy to retard the timing, something similar to a boost timing retard, but activates when you're spraying?

~Luke
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1969 Cougar - 11.91 - 380HP
2007 GSXR 750
1999 OZ - SOLD - 15.26 NA - 14.71 on 75 shot

I've been running a zex 75 shot for a while with out retarding the timing. You'll be fine. Decent times. I'm hittin the track tomorrow to see what I can do.

95 eclipse RS

14.80 @ 94mph with no turbo

Is it possible to retard the ignition timing? I know it's possible, but what do I need to do so?

~Luke
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1969 Cougar - 11.91 - 380HP
2007 GSXR 750
1999 OZ - SOLD - 15.26 NA - 14.71 on 75 shot

>Is it possible to retard the ignition timing? I know it's
>possible, but what do I need to do so?

You would need an ignition box like an MSD dis-2.

95 eclipse RS

14.80 @ 94mph with no turbo