turbo clutch conversion

[Guest Anonymous]

im putting an 82zxt motor out of a 2+2 automatic into a '77 coupe with a 4spd. I would like to retian the 4spd but i need to replace the cluch. will the flywheel from the 77 bolt to the 82? also im thinking i should use a turbo clutch will that work with the 77 tranny input shaft? if i did use a turbo clutch could i use the 77 non-turbo flywheel? if anyone has any sugestions on any of this i would greatly appretiate it.

[Mudge]

The flywheel will work yes, but not with a turbo clutch. Turbo cars and 2+2 cars get a 240mm flywheel/clutch setup, so a turbo clutch is too large for a standard flywheel.

[Guest Anonymous]

Hey mudge, a turbo clutch wont work with a stock fly wheel, so will a new stock clutch for a '77 280 be able to handle the torque of a stock turbo motor, or should i get a turbo flywheel and use the tubo clutch? if i did use a turbo clutch/flywheel will everything else bolt up, and which throwout bearing should i use in that case?

[Mudge]

I dont see why a standard clutch for the 2.8L wouldn't work with the power of a stock turbo car, but how long are you going to be stock? A couple upgrades and you could be pumping out another 25% power, and I dont know how much headroom is in these clutches stock. They are a fair size for such a small engine, but again with a couple mods and your looking at V8 torque. If your going to drag race it you will especially appreciate a good clutch, if you road race or just casually drive it with some hot footing now and then, it wont be as critical.

 

I think your best bet is to hunt down a 2+2 or turbo flywheel (they are the same size 240mm). With even a few pounds more boost over stock and I think from what I've heard a stock clutch wont like it for long, but it again probably depends on your use of the car.

 

Feel very free to get more opinions on that though, as I dont even have the turbo setup in my car yet! Len168/FL327 said his clutch was holding until he got slicks recently, and I believe he is at stock boost levels right now. The more hook and the more driveline stress.

[BayAreaZT]

If you are going to remove the flywheel and resurface it, you might as well pick up a 240mm flywheel. This will save you from doing it twice. I had a 225mm flywheel and stock clutch and it was slipping on 4th gear pulls on the freeway at 8 or 9psi. Just upgraded to a 240mm flywheel and ACT clutch. I'm still in the process of breaking it in but there is a noticable diference in holding power.

If you are staying with the 4 speed, you may have to change the TO bearing collar if you use a ZX clutch. I think the 4 speeds and 5 speed trannys used different collars. Everything else should bolt right up.

[ZuL8r]

I am going to try to put the turbo flywheel and clutch on my car with a 76 4 speed tranny. Where can I get this collar?

[Pyro]

Get the shorter (48mm vs 52mm) collar from the same 2+2 Z that you get the flywheel from. Or I think victoria british sells them.

[jtmny1999]

I am going to try to put the turbo flywheel and clutch on my car with a 76 4 speed tranny. Where can I get this collar?

 

 

I have actually done this swap I had a automatic turbo motor with a ZX n/a 5 speed. I purchased the throwout bearing, collar and clutch fork for a 2+2 from local parts store and a fidanza flywheel 240mm (can be used for either clutch). I initially had the 225mm but slipped bad so I upgraded with the bigger clutch/flywheel. Now I have the stock pressure plate and 6 puck clutch .....still slips if i boost higher than 12psi. I will have to buy a better pressure plate to handle more HP since i will intercool my 240 soon. Remember to take the Spacer in the crankshaft because that tends to cause alot of problems.