• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

Recent content by Nchristopherson

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    VCM Scanner questions

    Hello all, I have a couple questions. The first one is regarding the latest version of HPTuners. It appears that in the newer version (at least compared to most guides), the default tables have changed from reporting in terms of airmass and RPM to terms of RPM and MAP. For a SD tune maybe this...
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    Siemens Deka 60# and SD Headers w/ double wall flex & O2 bung

    Items are located in Roscoe, IL. Buyer pays S&H & Fees. 30 day warranty on the injectors if you're not happy or if they don't work as intended. Asking $100 for the headers. Headers have a pretty gnarly crack in the crossover that would be easy to fix with a welder. As mentioned above, the flex...
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    Turbo cam

    I've been doing quite a bit of searching and have found a lot of good information so far, but I think I'll reach a conclusion by just asking it on a new thread.. My goal is ~500WHP on E85, which I've read is pretty easily attainable. Trans is to come later. Basically everything I've read says...
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    Engine cleanup without removing rotating assembly

    So it's pretty well known to just not mess with the rotating assembly on these motors, but I want to do a thorough cleanup of my engine. It's torn down to the shortblock. I wanna degrease it and remove any grime, strip the old paint and give it a new fresh coat of paint. Does anyone have any...
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    1998 Black GTP 191k miles ROLLER

    Location: Roscoe, IL 61073 Price: $1500 OBO, open to negotiations Hey everyone. This car has been sitting on my stepdad's property for a while and I am finally moving into my own apartment and have no room for this car and no time to get it back to a running state. As the title says, this car...
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    Head studs and compatibility

    So, I have a summit racing credit card and want to get head studs from summit racing. I found these there and think they will do, given the description, but it doesn't specify the series 2, just that "Notes: Fits Grand National and T-type cars only.". The only issue is four of the studs are...
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    Engine acting funky

    This is a problem I have been having for a while, and I have tried a lot of things with no luck, but hopefully having more information may help solving it. When my car is at idle and cold start, it does it's usual thing just fine, no weird idling or anything like that. Once it gets hot though...
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    Weird feeling issue

    Alright. completely shifting gears here lol.. Turns out every time I was pulling the regulator, the battery was also dead from trying to start the car while broken down. I have verified that the problem is not fuel related. The problem is electrical related. It can be fixed by removing the power...
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    z3 swapped, misfiring on #1

    I finished doing the z3 turbo swap and 60# siemens Deka injectors on my GT but am running into problems. It starts and seems to run fine, but there is a pretty consistent misfire on cylinder #1. all of them have missed at least once, but very seldom. The PCM has a bunch of L67 tables copied over...
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    z3 turbo kit questions

    Hey all, I got the z3 kit from a member earlier this year and it came with the intercooler but the zzp directions don't have any information on cuts to make to route the intercooler piping or what cuts to make to fit it in front of the radiator. Does anyone have pictures or advice based on their...
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    L36 kr

    I've done some searching, but can't really find anything that gives in-depth information about KR on the L36. I have a couple of questions based on my own observations from driving my car. 1) What is "normal" KR for the N/A 3800? I know some say up to 7* is normal for the S/C version, but I am...
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    1998 Black GTP ROLLER 4 door 191k miles

    Car is located in South Beloit, IL. I will post pictures later Hey guys, the time has come to part ways with my first grand prix. I have moved onto a different grand prix andthis one is just taking up space. This car can be driven (it has all of the necessary stuff), just not until some...
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    2002 4T65E TCC RPM Oscillation

    I have the TCC RPM oscillation issue with my transmission. I jumped the gun and bought a TCC PWM Solenoid, but am reading on Dave's '4t65e common problems' page that it is very rarely ever the solenoid itself. I wanted to chime in here to see if anyone else has had this problem and how they...
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    Loud thud when starting cold

    Got my cat replaced a couple days ago and the car is making the power like it should now. However, there is a small exhaust leak and I also get this loud deep thud when I cold start my car. It didn't do this until I got the cat replaced, not sure if they are related. Could the thud be coming...
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    Very sluggish acceleration

    My car has been having some interesting issues lately where it just does not want to make power. The car won't go over 3.5k RPMs ever, and if I put too much throttle in, it won't shift into the next gear and will start to actually decelerate. If I slowly stay in the gas, I can get up to speed...
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