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Discussion Starter #1
First off, I have had over 300 passes on the drag strip w/ my supercharged GTP that runs 12's, so you can save on the technicalities of the sport:Thumbup: ......

Anyway, I took my truck to U.S. 131 Motorsports park in Martin, MI yesterday. I first ran stock (19.9x), then 50hp (17.8x), then 75hp (17.7x). On all 3 runs, I only spooled to about 4-5 psi for fear of smoking the clutch too much (only has supposedly 15k on it, so it's not on it's last leg or anything). Also, I ran in 2wd, which cost me on the last run as I sat and spun off the line.

The questions are, what psi do you spool your turbo to?

Is it best to run in 4wd all the time?

Those of you w/ manuals, how much/how long can you spool the turbo before the clutch slips?

Also, what gear do you take off in? I took off in 1st (6-speed's 2nd forward gear)

Obviously power is a deciding factor, but generally I would like to know. The clutch is a stock hp one.

Any tips/help is greatly appreaciated, Garett
 

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Slow 6.0
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what do u mean "spool the turbo"? on the launch?
 

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Discussion Starter #3
Sorry, I meant bring the boost up, at the staging lights before the lights drop
 

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Sorry to get off topic, but im interested in hearing about your GTP. Im working on a friends 99 Regal GS right now. It puts down a little over 400fwhp. I love it. Its a fully loaded buick that looks all stock but runs like a vette. haha. Right now the lower intake is getting welded. It cracked somehow. I think its because it was machined out cause it has an intercooler and the one area of the wall is thin. Were just gonna weld it and hope for the best.
 

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As far as 4WD, everyone I know with a 4x4 modded diesel runs in 4WD. Some guys with electronic transfer cases will try to disengage at the 330' or 660' mark, to reduce drag on the top end (better ET but worse consistency).

I only know a couple of people who do it with a manual trans. One (a common rail dodge dually) just tries to heel-toe the brake & accelerator while releasing the clutch pedal enough to build a little boost. I think he only gets a couple of pounds of boost at launch. The other runs a Lenco transmission in a full tube-chassis race truck. He has a 4-wheel line lock, with a brake pressure gauge to make sure he has sufficient holding power. He then uses the clutch and accelerator to build as much boost as he feels the track will hold (30+ psi).

When I had a single-tracker rearend, I would do a 10 psi dry burnout (right side tires spinning only), then build around 4-5 psi of boost at the line. It usually spun the tires, but it ran well when it hooked (16.80's). Now that I have a locker I do a wet burnout then leave barely above idle (it tends to wheel hop if I leave with any boost).

Regards,
Michael Pliska
 

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Slow 6.0
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ok thought that was what you meant, well anytime u load the clutch like that at the line ur taking a big chance in smoking it, honestly i wouldnt do that, ive tried it in the past with cars i used to drag race and never had any luck. if anything id just bring the rpms up to about 3000 and let the clutch out gradually on the take off to keep the rpms up and get a load on the engine.
 

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Slow 6.0
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maybe DP tuner can make you a drag race program that has a 2 step rev limiter, that would do the trick he he
 

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TurboTPI said:
Sorry to get off topic, but im interested in hearing about your GTP. Im working on a friends 99 Regal GS right now. It puts down a little over 400fwhp.
:hijacked:
Okay, I want to hear more about your Firebird! I have toyed with the idea of having a fast & fun daily driver which I could competitively bracket race. I thought my Typhoon was going to be that (and it still may become it), but it has been too inconsistent.

Thanks,
Michael Pliska
 

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Michael said:
:hijacked:
Okay, I want to hear more about your Firebird!
LOL, I saw that in his sig too. I had a Formula 350 years ago and loved that car. Definately wasn't sporting custom turbos or anything, but it was fun.
 

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Discussion Starter #10
Sounds like you have a heck of a car yourself TurboTPI. I wonder if I've heard of your buddy on the ClubGP, because there aren't many in the 350+ whp.
My car put down 285.7 whp last fall, but I have added headers and have a custom tune burned into my PCM. Sooo, it should be around 305 whp or so and probably 450 wt. Which is about 366hp/540ft-lbs at the crank....These little Supercharged V-6's make massive torque especially for a gas engine. The torque numbers they put down w/ turbo's are almost double the hp they make, like a diesel.
The mods I have are all from ZZPerformance in Grand Rapids, MI. They are as follows: ZZP VS cam (Custom CompCam stage 1 mild cam, makes a nice mild lope), Wizaird CAI, ZZP PCM (VS cam, 42.5# injector, 2.9 pulley, and IC files), SS IC, ported intake, TOG ceramic coated headers, ZZP stainless steel 3" DP, Rollermaster double roller timing chain set, and ZZP modular pulley system w/ sizes ranging from 3.4-2.8" (stock is 3.8").
The car pulls very hard all the way to about 120-130 mph, especially down low. 0-60 time I estimat at 4.5 sec, and my best run is a 12.83 @ 108.6 mph. Never have ran slicks because of the stock tranny (which is rated at 280ft-lbs, so you can see I'm waaay over that), so it has hit several 12's on street tires. Launching these cars is a b****h! They have massive torque steer, but the equal length CV axles do help. I can't imagine if they had CV's like an escort, lol

Hope I answered what you wanted to know.
 

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I'm right here in Scotts, Michigan. I lived in Portage for a few years. Where about in Portage are you? I usually look at all the PSD's to see which ones have been modded. Gene :mafia
 

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That is very simular to my friends Regal. The only thing he really has over you is bored .030 over, forged pistons, balance shaft eliminated, ported heads with bigger valves, and a ported blower housing. It also has a Caddy Northstar throttle body and mass air flow sensor. And i know he was dealing with a company out of michigan too. Maybe the same place, i cant remember the name of it. I know his regal is kinda know in the 3.8 sc scene. It black and looks totally stock. You may have read or heard about it somewhere.
 

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Michael said:
:hijacked:
Okay, I want to hear more about your Firebird! I have toyed with the idea of having a fast & fun daily driver which I could competitively bracket race. I thought my Typhoon was going to be that (and it still may become it), but it has been too inconsistent.

Thanks,
Michael Pliska
My car is my sleeper. haha. Its totally stock apperance. Even the wheels. I repinned the ecm harness and run a typhoon 749 ecm so it senses boost actually. So its drivability is like a factory turbo car. I actually used to drive it to and from the dragstrip once a month (60 miles one way, getting 23-25mpg) but with having a stock rear end and gear set, i figured it be safer to buy a tow rig and trailer it now. It was featured in GM high tech performance magazine in July 07. It a very consistant 10.8-10.7 car.
 

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That what it looks like from the outside. It all stock, i swear.
 

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I like the plates i got, haha
 

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Awesome sleeper! I assume you did some bottom end work to handle the turbo? Does the Typhoon ECM work with the 8 cyl ignition & injector timing okay?

Do you have a rollbar in the car, or are you just running at "outlaw" tracks? My buddy has a 64 GTO which has an outdated rollbar (does not connect to the frame). He tried keeping it over 11.50 so he could still bracket race it. One night he cut loose and ran a 10.80-something (I think he red-lighted and decided to run it out the back door). He had a really nasty note on his timeslip, telling him he was banned until he had a legal rollbar...

My version of a sleeper was a somewhat stock appearing Vega (still ran on steel rally wheels, no hoodscoop, etc) which ran 11.50's. This was back in 1987, when there weren't many fast street cars. I plan to freshen the engine, install a fuel cell (stock tank rusted out) and start driving it again very soon. I'm getting kinda old & spoiled with air conditioning, so I probably won't drive it as much in the middle of summer. Back when I built it, I didn't have any cars with A/C so it didn't matter!

Regards,
Michael Pliska
 

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Michael said:
Awesome sleeper! I assume you did some bottom end work to handle the turbo? Does the Typhoon ECM work with the 8 cyl ignition & injector timing okay?

Do you have a rollbar in the car, or are you just running at "outlaw" tracks? My buddy has a 64 GTO which has an outdated rollbar (does not connect to the frame). He tried keeping it over 11.50 so he could still bracket race it. One night he cut loose and ran a 10.80-something (I think he red-lighted and decided to run it out the back door). He had a really nasty note on his timeslip, telling him he was banned until he had a legal rollbar...

My version of a sleeper was a somewhat stock appearing Vega (still ran on steel rally wheels, no hoodscoop, etc) which ran 11.50's. This was back in 1987, when there weren't many fast street cars. I plan to freshen the engine, install a fuel cell (stock tank rusted out) and start driving it again very soon. I'm getting kinda old & spoiled with air conditioning, so I probably won't drive it as much in the middle of summer. Back when I built it, I didn't have any cars with A/C so it didn't matter!

Regards,
Michael Pliska
The typhoon ecm works excelent. I have a program on my pc and i burn chips for the car. You just chance the bin file to work with an 8cyl. No rollcage. haha. Yeah, i get hasseled a little bit. But i always have the times turned off, so they dont really notice. I dont want a rollcage, i still drive the car alot and rollcages are a pain it the *** for a street car.

I like vegas, there sweet little cars. Good luck with it.:Thumbup:
 

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very nice formula, one of few people to get a TPI injected small block into the 10s. i have an 89 IROC factory 305 TPI 5 Speed car that i am restoring, it was my first car that i drove through high school until a lady ran down the side of it when she took a left on red. im sure your firmiliar with preston smith he has an 85 or 86 IROC 305TPI auto that runs 10s and 9s occasionally he actually lives right near me often see that car running around and it looks stock to boot. nice work :Thumbup:
 

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michael forget about cars lets see your typhoon... and i think that this thread is officially hijacked...
 
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