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  1. S

    car runs but no power

    I'm really missing driving the car and back to trying to solve a problem hopefully saving a rebuild cost. Last year I overboosted it to 24psi on 93 oct for few seconds when I heard the telltale ping. Tore top end apart thinking headgaskets. Nope. They were fine. The car will run, but lacks...
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    well problems escalated lately since I overboosted 8 months ago, need some ideas.

    I'll start with a little history. Some may remember some of my old posts over the last like 8 months. I overboosted it trying to get accustomed to the control and went further than I thought. Hit 24 psi on straight 93 octane for few seconds till I heard the preverbial ding ding. Thought I blew a...
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    70mm throttle body and throttle

    has anyone come up with a solution yet for the difference in air flow with a 70mm throttle body since it flows more for a given tps value. Wide open throttle is no prob, but anywhere between that and idle it seems like computer confused and hesitates.
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    Electrical question

    Have had a problem with the battery getting fried after over a week of it connected. I did find a dead short in 1 lead coming off the starter at the battery post. Seems I cleared that short up during some other fixes as it no longer reads a dead short. However, it does now read a constant 48-52...
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    need to pick some brains

    OK. Did some more scoping on car today. I pulled the oil pan to check out the crank and suck thinking maybe I did some lower end damage after over boosting it couple months ago. Everything looked good, no signs of any wear or damage from what is visible. Also nothing floating in oil such as gold...
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    question regarding sounds under car

    Still going thru trouble shooting things on car after over boosting it few months ago. Thought I blew a HG so tore it down to replace them, turns out they were ok but replaced em anyway with the bullet proof ones. There has been a ticking sound since then (assuming it wasnt there before as I...
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    question for the electical guru's

    I have a short in the electical system somewhere. It seems to be capacitive in that it usually hangs around 11 ohms. However it drops to 2 ohms and occasionally will up to around 100 ohms for couple seconds then back to around 11. This is with the battery disconnected and testing across teh 2...
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    RJC 70 mm TB question

    I've noticed the throttle plate on mine doesnt quite close completely, small gap at bottom and it also sticks a bit at closed position when you try by hand, dont notice with pedal. Has anyone else that has one seen this or is this one maybe just a bad from box one?
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    how large are the stock valves?

    curious about the heads on my car as I haven't had it long and still trying to find out all that has been done to it in past. I've seen others saying they had the heads redone with larger valves. On mine, the 2 valves are so close there is no possible way to put a larger one in them. The cuts...
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    stock headers and cross pipe

    selling stock headers and cross pipe. No leaks or cracks anywhere. Replaced with Hooker super comp headers, only reason for removal. Taking offers. Prefer to sell complete, but will consider single requests if no reasonable offer on whole.
  11. S

    rough idle at open loop?

    Car is running real rough idle during open loop. Almost stalls if you're taking off from a stop. Once it warms up and goes into closed loop idle is much smoother, not perfect but alot better, and take off is almost normal as well. Other than ignoring O2 signal at idle during open loop, what else...
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    error code 31 question

    I'm now getting an error code 31 which is boost solenoid didnt respond error. I'm assuming that solenoid is the small part that was on the passenger valve cover near the turbo. It was never connected in the past, part was there with no electrical or vacuum hose connections, so I removed it to...
  13. S

    south Florida 87 GN

    can't really tell from here but car has T-Tops. Very well kept exterior and mint interior. Just missing plastic piece between rear bumper and body.
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    what do you use for insurance?

    has anyone found an insurance company that will still do a declared value on your car but not limit how its used? Currently mine is thru Grundy which does collectable cars , but they limit you to shows and related stuff. I'd like to use it for more than that but dont wanna go with typical...
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    couple problems now that car is running

    Well I finally got the car together and running after a 2 month project replacing HG's and some parts upgrades and clean up, new vacuum lines etc. Now thou it seems I have a few problems thou. First is when the car is first started it sounds fine, however after it warms up you get a loud...
  16. S

    can't get any fuel pressure

    well after almost 2 months on this HG and clean up project, its now together and ready to run but I can't get any fuel pressure. Stays at 0. Did find out my battery went dead while sitting for month before I started project. Between the factory alarm, after market alarm, lojack, and everything...
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    What is this connector for?

    found this connector sitting loose toward bottom of engine below turbo. Any idea what it is for?
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    87 GN vs 64 Chevelle 454

    anyone have any ideas what a 64 Chevelle with a 454 supposedly once dyno'd by a prev owner at 500 hp would do in the 1/4 mile? My boss switched his challenge from his 66 chevelle with a 383 stroker estimated at approx 420 hp to his 64 chevelle 454. I'm sure it would have been close with the 383...
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    this may sound bit funny

    anyone got a pic of the a/c compressor area of engine that shows it and the idler pully? its been over month now since I started and bit difficult remembering exactly how everything fit together. Be alot easier with a pic to go by, and stupid me forgot to take some before I started.
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    Is valley pan necessary?

    I am at stage of putting everything back together after tearing down for new HG's. I'm wondering thou do I need to put the valley pan back on? I've read many times of peeps going without, but that is on setups faster than mine. What is the pan doing? doesnt seem to do more than keep the bottom...
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