Buick 3.8 + T56
#2
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Car: 87 GTA, 97 Formula
Engine: 350 TPI, 350 LT1
Transmission: T5, A4
Axle/Gears: 9 bolt 3.45, 3.42
Umm. Im pretty sure the 231 buick after a certain year is transverse only, which means it won't bolt up to a t5. If its coming out of a park ave or something with a series1 its a dog anyway. but the block out of a 3.8l firebird from the fourth gen should go in. but whats the point when you got all that room under the hood. 350 is nice. 502 is better. 632 is retarded.
#4
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Car: 86-FireBird
Engine: -MPFI
Transmission: T5
Axle/Gears: 3:42
you can bolt anything to anything if you buy an adapter plate.
They do it all the time and make them for everything.
but you better have a WC T5 if your gonna go turbo.
a reg T5 will die, just cause they get an easy 500-700hp out of a 3.8 turbo with simple mods.
If you were gonna go through the adapter plate stuff id just go auto n get a built switch pitch. [no 200r4 or 700s, blaaaa] Its an old design they still use in Buick world. basically it lets you at a flip of a switch, do 3500RPM launches and shift at 1500 like normal on the fly.
you get a wild stall speed for racing or normal stall speed for street drivin.
where any other tranny you get only 1 stall speed to chose from. Ones good for racing suck on the street n vise versa.
They do it all the time and make them for everything.
but you better have a WC T5 if your gonna go turbo.
a reg T5 will die, just cause they get an easy 500-700hp out of a 3.8 turbo with simple mods.
If you were gonna go through the adapter plate stuff id just go auto n get a built switch pitch. [no 200r4 or 700s, blaaaa] Its an old design they still use in Buick world. basically it lets you at a flip of a switch, do 3500RPM launches and shift at 1500 like normal on the fly.
you get a wild stall speed for racing or normal stall speed for street drivin.
where any other tranny you get only 1 stall speed to chose from. Ones good for racing suck on the street n vise versa.
#5
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he meant a t56 not a t5 t56= 6 speed dbl overdrive 4thgen trans,and im sure they make all the neasacary parts to mate the gn motor and t56 together,but it will prolly be a pricey conversion
#6
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Car: 86-FireBird
Engine: -MPFI
Transmission: T5
Axle/Gears: 3:42
Yea I got some messed up reading skills.
My brain sees what it wants at time.
Every time in my grandpa's caddy id get fooled as the light on the dash says the car is leaving. Id fall for it ever time. Car is leveling, not leaving.
My brain sees what it wants at time.
Every time in my grandpa's caddy id get fooled as the light on the dash says the car is leaving. Id fall for it ever time. Car is leveling, not leaving.
#7
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Car: 91 RS
Engine: 5.0 tbi
Transmission: 700r4
now are we talking carb or f/i gn 3.8?
I got a budy with an 86 gn that's a dog about everything upgaded in it BUT the ignition and why he selects up on the turbo and computher too high it just falls on its face
I got a budy with an 86 gn that's a dog about everything upgaded in it BUT the ignition and why he selects up on the turbo and computher too high it just falls on its face
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#8
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Car: 2005 BMW 545i
Engine: 4.4L N62B44
Transmission: 6spd auto
Axle/Gears: Rotating
Originally Posted by Gumby
Yea I got some messed up reading skills.
My brain sees what it wants at time.
Every time in my grandpa's caddy id get fooled as the light on the dash says the car is leaving. Id fall for it ever time. Car is leveling, not leaving.
My brain sees what it wants at time.
Every time in my grandpa's caddy id get fooled as the light on the dash says the car is leaving. Id fall for it ever time. Car is leveling, not leaving.
exactly... sorry I just remember hearing about you getting mad at me for calling you gumpy. I didn't mean it my brain just took it as such.
hey can you use a gumby avatar? I can find one for you.
wow I'm fricken with nothign to do at work. this sucks
#9
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Car: 1987 Trans Am
There have been a few attempts to put manual transmissions behind the GN motors, and while it can be done it will just slow the car down. Even GM tried it (not production). Stick with the auto. Post this on any of the GN forums and you'll get the same answer.
#10
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Car: 2005 Lincoln LS, 83' Z28
Engine: 242 DOHC and an empty engine bay.
Transmission: 5R55S, T5 soon to be auto
Axle/Gears: 3.58s and soon to be 4.10s
I wanna know how itd be slower...? every production car Ive seen was faster as a manual unless it was a built auto..
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Car: 1987 Trans Am
Originally Posted by 69charger383
I wanna know how itd be slower...? every production car Ive seen was faster as a manual unless it was a built auto..
#12
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Car: 2005 Lincoln LS, 83' Z28
Engine: 242 DOHC and an empty engine bay.
Transmission: 5R55S, T5 soon to be auto
Axle/Gears: 3.58s and soon to be 4.10s
Alright, good points.. I dont think a T-5 will stand up to more than 5 power shifts with a GN powerplant.. Maybe a T-56..
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Car: 1987 Trans Am
If you were determined to run a factory T56, I'd use the 93 style, though even closer (aftermarket) gears would be of great benefit...I just don't see the need for a double overdrive with a motor that doesn't like or need a lot of gear to begin with. For durability, gearing, etc I've yet to see a trans better suited to the GN motors than the one they came with, the TH2004R.
#14
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Car: 1983 G20 Chevy
Engine: 305 TPI
Transmission: 4L60
Axle/Gears: 14 bolt with 3.07 gears
BTW, a transverse mounted 3.8 will bolt right up to a 2.8 T5. Have done it on several cars/trucks. I have a buddy that we put a 2002 3.8 SC from a GTP into a 1985 S10 with a 5 spd.
I also believe that the T56 was put behind some of the 3.8 RWD engines in the 4th gen line and that they use the FWD bellhousing pattern.
I also believe that the T56 was put behind some of the 3.8 RWD engines in the 4th gen line and that they use the FWD bellhousing pattern.
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Car: 84 Trans Am
Engine: 350
Transmission: 700R4
Axle/Gears: 3.73
Originally Posted by Fast355
BTW, a transverse mounted 3.8 will bolt right up to a 2.8 T5. Have done it on several cars/trucks. I have a buddy that we put a 2002 3.8 SC from a GTP into a 1985 S10 with a 5 spd.
I also believe that the T56 was put behind some of the 3.8 RWD engines in the 4th gen line and that they use the FWD bellhousing pattern.
I also believe that the T56 was put behind some of the 3.8 RWD engines in the 4th gen line and that they use the FWD bellhousing pattern.
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Car: 1988 Trans-Am GTA
Engine: 5.7L TPI
Transmission: WC-T5
Axle/Gears: BW 3.27
YES! it can and has been done. back when i was looking into this exact swap for my 2.8 i did some research and discovered that somone does make an adapter plate that will mate the T56 bellhousing to a BOP bolt pattern. i found it on TurboBuicks.com - TurboCharged Message Board Turbo Buick Grand National, T-Type, Turbo TransAm but i deleted all my refference material when i realised i coult buy a TTA for less then what i could build one for. (no kidding)
a rebuilt motor with a few buildup parts plus a Tremeck t56 and some suspension work to my v6 so it could handle it + odds and ends was going to run me 9K. a medium mialage TTA goes for 10K was not worth it for me. but if you can get a better deal, or are willing to make some sacrafices on the build level i say go for it. 1/4 in 13.3 has got to be fun.
a rebuilt motor with a few buildup parts plus a Tremeck t56 and some suspension work to my v6 so it could handle it + odds and ends was going to run me 9K. a medium mialage TTA goes for 10K was not worth it for me. but if you can get a better deal, or are willing to make some sacrafices on the build level i say go for it. 1/4 in 13.3 has got to be fun.
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