will our manual transmissions bolt up to a GN engine? does anyone know what kind of flywheel and all that crap id need for it? anything anyone knows is appreciated.

 

The thrust bearings of a GN 3.8 are not equipped to deal with a manual transmission bolted to them in any fashion, so the question's a moot point... The GN motor would also destroy a V6 T5 with little effort, even if it would bolt up. If you go GN, get a *BUILT* 200-4R or 700R4 for the thing.. or a 200-4R-BRF if you can find it.

 

Exactly.

<----still waiting for the "GN Know-It-All's" to come in and argue that a manual tranny will be just fine behind the motor

 

it's mre of a manual will slow you down in a turbo car because of boost lost between shifts.

With my other car with a BUILT 90 6 bolt eclipse motor and 04E/T3 exhaust I am thinking of a 4L60 with paddle shift. Talk about a kick in the pants, having a 15 year old car with paddle shift... But it will more then likely go 700R4 for right now after I get an adapter made.

 

Exactly, also building boost at the line but don't tell some people that or else they'll call lol

 

No.. honestly it's not. Above *ANY* other considerations in transmission selection with a GN, I'm very serious about those poor thrust bearings. The pressure exerted on the clutch diaphram in order to disengage the pressure plate is transferred directly to the crankshaft and the thrust bearings... GN thrust bearings aren't designed to handle it and will fail. You'd lose the motor. It's not pretty. Just Don't Do It.

And building boost on the line isn't a big consideration when a stock GN is lucky to put 4 psi down before breaking loose.... anyone got a brake upgrade kit?

 

You will lose boost between shifts.


When they tested out the TTA in 89, they built one to test that had a 6 speed (IIRC, may have been a 5 speed, but I'm pretty sure it was a 6). THe thing had a HELLACIOUS top speed (170+....I think it was 189 to be exact) but was a full second slower in the 1/4.

 

The only way to save boost between shifts is to shift at WOT, I have yet to try in a turbo car.
You would drop the trans in the street after a few shifts if you had the power and shifed at WOT. It's not a good idea.

 

In a manual powered turbo car, shift point is moot when you take into account that the BOV will vent excess pressure when the throttle body closes. To avoid this you can remove the BOV or Bypass valve.
However this is a very stupid thing to do, as it would not take too long to ruin the turbo bearings from compressor surge damage. And the rapid slowing of the shaft speed WILL cause severe damage and expedite the rebuild intervals.

And yes, Manual powered turbo cars ARE slower then AUTO powered ones. I do not care what anyone says, I have SEEN IN AT THE TRACK.
I have seen twin Talons go to the track. I say twins because the owners were rothers and they had the EXACT SAME SETUP minus the trans. 1 Auto, 1 Manual. The auto was a stout 1.45 and 6 MPH FASTER. Reaction time was seperated by .02 Sec.
They got 4 runs against each other, the Auto was faster every time. There was even a time where the auto was .5 slower reaction time and STILL WON.
Yes they did do a driver switch, surprise the Auto won.

 

I think he more or less meant powershifting without using the clutch.

 

Then you run the risk of oil starving the turbo. When the motor goes full revvs and no load, it eats all the oil and volume decreases.

 

It won't make that big of a difference for that split second.

 

Ahh, but it does make a difference.

But at least people are learning what we know huh?

 

Well regardless of any of that...putting manual behind a GN motor is retarded and will slow you down.

As far as the BOV and whatnot, most GN guys don't run 'em. They're not needed. I've seen stock turbos last past 150K miles even with people driving them hard(on the throttle then off the throttle). The stock T3's really don't push THAT much air. Now the TE60 turbo I have...ughh I'd hate to see what I'd do the bearings if I drove like an *** lol

 

well mine does 53Lb ft T04E. and I would not run the engine without it.(bov)
And I have seen some mitsu T04H do some significant damage when they removed the BOV/By pass.

 

When I say shifting at WOT that means the gas petal stays at or very clost to wot when I shift. I slam the clutch through the gears.
And the auto turbo is faster then the standard turbo in the 1/4 mile don't tell the ricers about it, you will be wrong. They won't have any reason but you'll be wrong. To them manuals are all ways faster.