COYOTE-1

I have the Rearend already, and a friend of mine has a tranny and drive shaft...will this bolt up to my n/a, and will i need to by a clutch for it, i have a stage 3 clutchmaster in my car right now, but the tranny synchros are shot....anyone know if it will bolt up..

Thanks
Buddy

(Edit...Remove ungodly huge signature...CHECK YOUR PM!)

DJChunter

yes it will bolt up fine but you will need to get a turbo starter, a turbo flywheel and counter weight off of the same series of car.. also of course you need the trans.. the rear end adn drive shaft would be nice but not a nessesity on a N/A even a turbo N/A.. that tranny will bolt up to your N/A rear end if you use a auto shaft.. and i have a mint one i will sell you for $125shipped if you want it..
Dave

Evil Aviator

No it won't, it's too short. See the Factory Service Manual for propeller shaft dimensions and these pictures:
http://www.16paws.com/rx7/index.html

COYOTE-1

i have a turbo rear end already installed

DJChunter

Didnt we already have this conversation b4? i told you i did it in my old 87 GXL with no problems.. it didnt even leak any trans fluid like you said it would.. Ok, maybe the manual says the shaft is shorter.. but i did it and it was all good..
Dave

projekt

if you used the turbo counterweight won't that throw your engine off since the trbo and N/A rotors are different? or are they just diff compression, same weight?

crazyassrx7

projekt there has a point

i was wondering about that
i wanna do the the swap also cuz i have been through way too many trannies

Rxmfn7

iTrader: (4)

I'd like to know how people break so many N/A trannies. I beat the **** out of mine, and its holding up fine, still shift crisply, at 123k miles. Ive known a few others also that havent had problems. What do you guys do to break them?!?

pd_day

iTrader: (6)

NA = 150ft/lbs of tq MAX
TURBO = 250+ ft/lbs of tq minimum

need I say more?

btw, you don't need to swap counterweights if you are in the same series. The rotor weights the same for NA and Turbo within the same series..

Rxmfn7

iTrader: (4)

I understand the difference in power between the turbo and N/A, but my point was that in my experience, and in many others, the N/A tranny can hold up just fine in the presence of abuse and power. Im not saying that it's the strongest in the world or anything, but when I read about people with near stock N/As exploding the tranny, something smells fishy. Ask people such as Aaroncake or Bambam7 who have turboed their N/A and are still using the N/A tranny with no problems. I launch my car hard consistanly, and through hard shifts and downshifts into 3rd at 70mph, its never given me an ounce of trouble.

eljefe62

I've had my NA for 2 years, never babied the trans, and it runs fine, clutch also. Granted, my car only has MAYBE 150 HP, but also has 200k on it.

Evil Aviator

Until you explain how you compensated for the 2" deficit, I will disagree that it is "all good", and will continue to not recommend this potentially deadly modification to our forum members.

The FC rotors and front counterweights are the same weight for both turbo and non-turbo engines of the same series.

Falcoms

^ Sorry to bring this thread back from it's year of death and such, but I rather do this then start a new one and get flamed for not searching.

Question is, Being that the counterweights are the same from the N/A to the TII of the same series, why would we need to change flywheels? Are the flywheels different in their placement of the ring gear or weight or what? Also, can I "engineer" my trans bellhousing to use the N/A starter (I'm cheap)? Other then that, I think that this thread has answered alot of my questions thus far.

On a completely different subject, Rxmfn7: just wait, it'll go soon. I didn't do anything to beat on my trans i.e. no clutch drops or anything stupid like that, maybe stabbing the throttle to get the rear end to rotate around corners and stuff, but no donuts or anything, and I just broke the shift fork when taking off from a stop sign, not even pushing it or anything, just *POP*

Rxmfn7

iTrader: (4)

As to why you need to change flywheels, it is because the Turbo flywheel is larger in diameter, and when mated to the T2 tranny, needs to be for the starter to hit the ring gear.

Kenteth

Driveshaft won't work. You can get a custom one made at a metal shop, or buy one from mazdatrix thats made for that specific application. The alternative to a custom driveshaft is to swap out the entire rear-end to a tii rear end, and use the tii driveshaft.

The n/a tranny I've heard is good for abotu 200hp... above that and the stocker clutch would slip most likely anyhow.

If you throw on an tii flywheel you will need to change the front counterweight.

Evil Aviator

You could probably mill a relief in the TII transmission so that the starter can engage the smaller NA flywheel, but you should take a look at it yourself as I am not sure. I don't know how well the NA starter would fit to the TII transmission, even with modifications, so you may at least need to get a TII starter. Also, there are other problems such as whether the larger TII clutch would mate properly with the smaller NA flywheel. Yes, you will need a TII clutch pack because it has a different spline than the NA clutch. You can probably get a used OEM TII flywheel for just about nothing, so I think that is the least of your worries.

Oh, and keep in mind that you can get a TII clutch slave cylinder from your local generic auto parts store for 1/2 to 1/3 the cost at the Mazda dealership.

Kenteth

I've got an s4 tii flywheel if you're looking for one btw, was resurfaced last spring and never installed. Probably has some surface/flash rust on it

Rxmfn7

iTrader: (4)

No you wont.. as long as they are the same series, they are weighted the same.

Xentrix

You will need a tII starter, the na's don't bolt correctly, stuff from nopi onliine was maybe 70 bux total

Kenteth

N/a and TII flywheels from the same series are counter-weighted the same? No ****? wow..

totallimmortal

While we are on the subject, and please don't say the for sale thread, where can i find a tii tranny driveshaft and rear, and how much should i expect to spend?

Kenteth

Wel.. you can find one in the forsale section... but you told me not to say that *DAMN* I wouldn't pay more than $4-$500 shipped for everything.