For those that know/remember me and my cars issues
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From: Fort Wayne, IN
For those that know/remember me and my cars issues She seems to be on the right track now. After two years and 2 months, a shortblock, and a LOT of money, I think the problem is 95% fixed.
As you know, I was having running/stumbling issues and was running incredibly rich, fouling plugs in just a couple of minutes, and was pulling really low vacuum. Turned out my manifold from the head/cam swap summer of 03 wasn't machined to match my milled heads. Golen Engine Service diagnosed this as they've seen it before. Off came the heads/manifold and Golen machined everything to match and get a good seal, yet I STILL got gasket failures.
Until last week. I swiched from a Fel-Pro 1284 with the raised bead to a stock replacement Fel-Pro which is the crushed metal material and completely flat. Ran the car on Thursday and it ran pretty good, wasn't surging or stumbling (save for a tip in hesitation which should be tuning related considering the 58mm tb), and felt pretty good. I pulled the manifold thursday night and the gaskets showed no sign of leaking. Then I pulled a few plugs and they were showing lean, not carbon/oil fouled. Only issue I still had was pretty low vacuum (75-80 KPA at 1000 idle).
So I put it back together and with a new baseline "semi-out of the box" tune from PCMFORLESS ran it yesterday. Ran pretty dang decent. Still had pretty low vacuum though. Not hanging a valve open or anything that I can tell, so it may just be the nature of the beast (one of Joe O's bigger grinds for the cam). The tell tale part was when I ran it against my buddies Z28 (383/TPIS AFR heads/230/236 cam/3.73's/fully dialed suspension -- 405/405 to the ground) with a KILLER starts at 2000 RPM powerband.
Run 1: He put a car on me from 40-130. Run 2: He put 2-3 cars on me from 15-130.
I'm pretty pleased considering I'm on a baseline tune, running the 93 M29/3.23 combo, 100% stock suspension, and have no power down low.
The biggest issue I saw yesterday while ragging on it was aparrent valve float at about 6500-6700 RPM. Car nosed over a little which you could feel.
Anyway, seems to be going the right way finally. Just gotta get that 12 bolt with 4.10's and dialed in all the way.
As you know, I was having running/stumbling issues and was running incredibly rich, fouling plugs in just a couple of minutes, and was pulling really low vacuum. Turned out my manifold from the head/cam swap summer of 03 wasn't machined to match my milled heads. Golen Engine Service diagnosed this as they've seen it before. Off came the heads/manifold and Golen machined everything to match and get a good seal, yet I STILL got gasket failures.
Until last week. I swiched from a Fel-Pro 1284 with the raised bead to a stock replacement Fel-Pro which is the crushed metal material and completely flat. Ran the car on Thursday and it ran pretty good, wasn't surging or stumbling (save for a tip in hesitation which should be tuning related considering the 58mm tb), and felt pretty good. I pulled the manifold thursday night and the gaskets showed no sign of leaking. Then I pulled a few plugs and they were showing lean, not carbon/oil fouled. Only issue I still had was pretty low vacuum (75-80 KPA at 1000 idle).
So I put it back together and with a new baseline "semi-out of the box" tune from PCMFORLESS ran it yesterday. Ran pretty dang decent. Still had pretty low vacuum though. Not hanging a valve open or anything that I can tell, so it may just be the nature of the beast (one of Joe O's bigger grinds for the cam). The tell tale part was when I ran it against my buddies Z28 (383/TPIS AFR heads/230/236 cam/3.73's/fully dialed suspension -- 405/405 to the ground) with a KILLER starts at 2000 RPM powerband.
Run 1: He put a car on me from 40-130. Run 2: He put 2-3 cars on me from 15-130.
I'm pretty pleased considering I'm on a baseline tune, running the 93 M29/3.23 combo, 100% stock suspension, and have no power down low.
The biggest issue I saw yesterday while ragging on it was aparrent valve float at about 6500-6700 RPM. Car nosed over a little which you could feel.
Anyway, seems to be going the right way finally. Just gotta get that 12 bolt with 4.10's and dialed in all the way.
Thread Starter
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Joined: Feb 2004
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From: Fort Wayne, IN
Originally Posted by Quickshotkimber
I'm glad to hear she is running better. It sounds like it is doing pretty good to hang that close to your buddy. Good luck.
