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-   -   NA tranny bolted to a TII block? (https://www.rx7club.com/2nd-generation-specific-1986-1992-17/na-tranny-bolted-tii-block-642383/)

DemonicPupil 04-14-07 04:01 PM

NA tranny bolted to a TII block?
 
Basically, I'm wondering what the differences between the NA and TII trannies are. I'm looking at buying a TII block and would like to bolt my NA tranny to it. (TII conversion without all the TII goodies).

If this could work easily, I think it would save me the trouble of trying to hunt down the TII tranny, TII driveshaft, TII rear, etc. etc.

Things I noticed after doing parts searches: The pilot bearing is the same, so no trouble there with the input shaft. Looks like the S4 NA flywheel would work as well because the counterweights are supposed to be the same.

So basically, I can't figure out any reason why the NA tranny wouldn't bolt right up with ZERO problems.

Thanks

ps. tried searching but couldn't really get any of the info i was looking for.

311unity13B 04-14-07 04:10 PM

diff bell housings

88turbotime 04-14-07 04:19 PM

I know of a lot of people running TII engines and NA transmissions. I'd be careful about doing too many hard launches though.

DemonicPupil 04-14-07 05:22 PM


Originally Posted by 311unity13B
diff bell housings


You gotta be kidding me. I can understand the need to cast differently for oil and coolant passages for the turbo and what not. But a completely different bolt pattern for the 2 trannies? Dammit...

DemonicPupil 04-14-07 05:29 PM

Scrap the whole thread... found the info on Lander's site...


Originally Posted by rotaryresurrection.com
Take all the stock engine parts out of a turbo II to put into your car,
just the engine itself and all the electronics that are required to operate
it in stock form, not the turbo drivetrain (for instance if you cannot find
one). This would retain your nonturbo drivetrain. This is not highly
recommended, but can be done successfully depending on the driver. To do
this you would need, at very minimum, an upgraded clutch and pressureplate
to avoid major slippage of the clutch under boost. You just bolt an NA
flywheel onto your new t2 engine and everything bolts together just like it
did. Below is a parts list that is the basic minimum for doing this type of
swap, along with basic instructions.

Thanks all, sorry for the thread....

TitaniumTT 04-14-07 05:37 PM

that's not entirely true, the counterweights are different between the series S4 & S5/6. The counterweight is matched to the engine, the flywheel is matched to the tranny. TII VS are different diameters.

DemonicPupil 04-14-07 06:16 PM


Originally Posted by TitaniumTT
that's not entirely true, the counterweights are different between the series S4 & S5/6. The counterweight is matched to the engine, the flywheel is matched to the tranny. TII VS are different diameters.


Yea, but the S4 TII counterweight and S4 NA counterweight are the exact same part. So using an S4 NA flywheel or S4 TII flywheel will still work with the front counterweight.

I was talking about bolting an S4 NA tranny to TII block using S4 NA flywheel... as for slippage and what not.. i've already got a 6 puck to handle that.


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