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Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 08-04-2007, 12:32 AM   #11
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AFC'* are tuning AIDS, in order to determine proper pcm tuning. They are not a performance or long-term solution to tuning.

They have a reputation of being unreliable, and they cannot replace a proper PCM tune. They adjust by 'linear step' function. If they fail, you don't know it, and you could pay a price.

We have a member here who is on his 2nd or third AFC, and just ditched it for these very reasons.
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Old 08-04-2007, 12:33 AM   #12
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Quote:
Originally Posted by willwren
You'll have to spend quite a bit. Stock S2 L67'* run in that range. I think you're going to need everything listed and a cam, plus a tuner and alot of knowledge on a perfect track in ideal conditions to hit that in a Bonneville.
Firebuick is a half a second off my goal WITHOUT the rockers. Curb weight wise, there is not more than 1.5% difference. Judging by what the ER rockers are supposed to do, he should be down to about a 15.2 or with the rockers. In spitting range...
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Old 08-04-2007, 12:34 AM   #13
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Quote:
Any plug that you recommend? Gotta do a plug change anyway..
i got ac delco 41-932 very good result whit those and tj got the cupper one i think its 104 not sure they are cheaper to buy
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Old 08-04-2007, 12:54 AM   #14
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Quote:
Originally Posted by bigerik
Quote:
Originally Posted by willwren
You'll have to spend quite a bit. Stock S2 L67'* run in that range. I think you're going to need everything listed and a cam, plus a tuner and alot of knowledge on a perfect track in ideal conditions to hit that in a Bonneville.
Firebuick is a half a second off my goal WITHOUT the rockers. Curb weight wise, there is not more than 1.5% difference. Judging by what the ER rockers are supposed to do, he should be down to about a 15.2 or with the rockers. In spitting range...
Your curb weight isn't the whole issue. You have weight transfer problems as well (on the launch) with a C body. You have more of a challenge than an H or W body.
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Old 08-04-2007, 03:07 AM   #15
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Quote:
Originally Posted by willwren
AFC'* are tuning AIDS, in order to determine proper pcm tuning. They are not a performance or long-term solution to tuning.

They have a reputation of being unreliable, and they cannot replace a proper PCM tune. They adjust by 'linear step' function. If they fail, you don't know it, and you could pay a price.

We have a member here who is on his 2nd or third AFC, and just ditched it for these very reasons.
The AFC v2 and later is probably best used as an air/fuel ratio tuning aid only; however, the AFC v1 or v1.1 is nothing more than a dip-switch based MAF translator.

Then again, if the OP knows someone who can program his hybrid OBD "1.5" PCM, he may not need a MAF translator anyway to use a bigger TB.
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Old 08-04-2007, 12:12 PM   #16
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Quote:
Originally Posted by willwren
You'll have to spend quite a bit. Stock S2 L67'* run in that range. I think you're going to need everything listed and a cam, plus a tuner and alot of knowledge on a perfect track in ideal conditions to hit that in a Bonneville.
Ummmm didnt i hit that with just a CAI, 180 stat, waterpump underdrive pulley, and ER rockers. On original plugs, dirty TB, ect. I hit a [email protected] and i know it had more in it.
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Old 08-04-2007, 12:14 PM   #17
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Quote:
Originally Posted by firebuick
Quote:
Any plug that you recommend? Gotta do a plug change anyway..
i got ac delco 41-932 very good result whit those and tj got the cupper one i think its 104 not sure they are cheaper to buy
autolite 605'* i run and i like them
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Old 08-04-2007, 12:35 PM   #18
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Quote:
Originally Posted by TJ'sblackbonne
Quote:
Originally Posted by willwren
You'll have to spend quite a bit. Stock S2 L67'* run in that range. I think you're going to need everything listed and a cam, plus a tuner and alot of knowledge on a perfect track in ideal conditions to hit that in a Bonneville.
Ummmm didnt i hit that with just a CAI, 180 stat, waterpump underdrive pulley, and ER rockers. On original plugs, dirty TB, ect. I hit a [email protected] and i know it had more in it.
And you didn't read my reply above. The C-body won't launch like the H body.

The C-body is longer and heavier. Not much heavier, but heavier than the lightest chassis in a bonneville, which is 95. This causes weight transfer issues in the C body, not to mention the fact that an Olds 98 will not have a PCM like the unrestricted 1995 L36 PCM.

Totally different animal because of these differences. The challenge to hit those numbers for him are greater.
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Old 08-04-2007, 01:19 PM   #19
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Well i was arguing that it would be harder to hit it in a C-Body. You stated "to hit that in a bonneville". I was commenting on that. I know it will be harder for him. The problem around here lately is everyone is talking about modding and no one is modding (well a group of us are). The L36'* respond nice to mods. Go ahead and mod the car. Even with the list of mods that were listed you will have a much more enjoyable ride (even if you dont hit those numbers). And that is exactly what they are just numbers. I know that my setup was very fun(for a low budget L36 build) and i think you would enjoy a setup just like it Eric
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Old 08-04-2007, 02:10 PM   #20
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Quote:
Originally Posted by willwren

not to mention the fact that an Olds 98 will not have a PCM like the unrestricted 1995 L36 PCM.
.
What restrictions are in the PCM? What is "unrestricted" about it?
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