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4T80E/Turbo-S/C... TIME FOR A NEW THREAD?

Old 10-26-2007, 10:41 PM
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Originally Posted by popatim
Thanks for the education, sorry if I came off offensive.
I don't know much about trannies, as you can probably tell.
None taken. Everyone has been duped into the "15% manual, 25% auto" numbers. Or anything to make thenumber fit what they think their engineshould be making. You;d be surprised at some of the "% losses" I have seen!

The guy with the 383 stroker TBI in a 87 Chevy truck. Supposedly it was a 360hp street machine! (as quoted by the engine builder...) It made a whopping 156whp. I tuned it and got it up to 175 at the peak and it gained 40whp at 5000rpm. Add back 80% drivetrain losses to get the 360hp???? LOL! the engine made a good 225-230, which is about right for a (basically) 383 2-bbl. (I doubt it was even a 383 to this day)
Old 10-31-2007, 01:04 AM
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Nice exhaust housing choice...make sure you are in diapers when you get into the throttle bwhahahaha...

I haven't read the whole thread, but I am curious what is the engine management you will be using. Pls don't tell me stock PCM on such good work also maf?
Old 10-31-2007, 01:28 AM
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Originally Posted by nocutt
Nice exhaust housing choice...make sure you are in diapers when you get into the throttle bwhahahaha...

I haven't read the whole thread, but I am curious what is the engine management you will be using. Pls don't tell me stock PCM on such good work also maf?
o.k, I won't tell you.

LS1 MAF, (gutted divider).

I found to turbocharged400, thatI will have issues with the manual valve pisition switch int he -80E vs. the 65E, so I will be running the 4T80E of a stand-alone 4L80E diesel tcm with Tunercat tuning software. or atleast, that'* the plan as of now...
Old 10-31-2007, 01:41 AM
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Should I assume daily driving is part of the plan? I guess it depends on how much Hp you are planning to be pushing...
Old 10-31-2007, 09:32 AM
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Originally Posted by nocutt
Should I assume daily driving is part of the plan? I guess it depends on how much Hp you are planning to be pushing...
My current daily driver is a 450hp '88 Grand Am Turbo. It is manual steering and while it has a great heater, it'* not a real good winter car...

Yes, I drove the Bonne for about 6 months from Nov. 05 to June 06. It has been in project mode ever since. I do plan to drive it daily. This is the car I wanted to buy back in '94 when I bought my first new car. I couldn;t afford one, so I had to settle for a '94 Grand Am GT V-6 sedan. It'* like I finally have my dream car (and the nicer looking '96 body IMHO) 13 years later.

I finished one of the wood plates, I'll post some pics later. Have to finish the other today....
Old 10-31-2007, 10:18 AM
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Originally Posted by pontiacjeff
It'* like I finally have my dream car (and the nicer looking '96 body IMHO) 13 years later.
Uh oh. :?

Otherwise, great project! I really like your engine bay pictures, but I don't think you've shown your new turbocharger. I may have missed it, but did you yet put in the new one?
Old 10-31-2007, 03:09 PM
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Here are pics of the interooler as it nears completion. I need to get a radius bit to carve out the tube slots in the end. I am using clear vinyl tubing which is thinner od than heater hose so I can use an off-the-shelf (cheap) router bit.

I still need to plane them down to 1.300" each for a total thickness of 2.600. I've had the */c on the engine with that much matl under it and it clears the hood wiht 1/4" to spare!









Old 10-31-2007, 03:13 PM
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wood intercooler

interesting idea
Old 10-31-2007, 03:17 PM
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Originally Posted by Hans
wood intercooler

interesting idea
Engineered Performance has the biggest wood in the 3800 community! LOL!
Old 10-31-2007, 03:18 PM
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What do you plan on running through the intercooler to cool it down? Never did understand how that worked on a setup like this.

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