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-   2nd Gen Archive (https://www.rx7club.com/2nd-gen-archive-72/)
-   -   How to: Coverting N/A to TII (https://www.rx7club.com/2nd-gen-archive-72/how-coverting-n-tii-26647/)

wickedkin6s44 11-06-02 05:45 PM

One thing that you guys are forgetting about this conversion is that we need lots and lots of $$$$$$$$$$. :)

But once were done...it will be all worth it! :) :)

wickedkin6s44

Turblown 11-06-02 07:18 PM

have fun busting that n/a tranny;)

Xentrix 11-06-02 07:42 PM

If I ever get all the parts I'll be doing a slightly different version of what Aaron did.

The writeup looks good, can't wait for pics.

mattrx7N/A 11-06-02 11:39 PM

1. The N/A tranny is strong enough (its also lighter)
2. Its easier to pull the engine alone on a 2nd gen
3. Its much easier and cheaper to put a turbo on a N/A then to do the motor swap( just yank out all the wiring except the ignition stuff, take out all the injection stuff, buy a manifold from RB and a weber sidedraft carb and turbo hat from your local VW shop, get a turbo and manifold(very easy to make thanks to RB exhaust flange) get some intake tubing and done) yes its that simple.

GTR 11-07-02 08:06 PM

actually, theres things you have to consider mattrx7. when you boost a N/A, it's not really built that way. If you would want it to be reliable, you're gonna have to build up the motor to accept boost reliablity. so why not get a turbo motor that's already has all that... makes sense ..

Turblown 11-07-02 08:37 PM


Originally posted by mattrx7N/A
1. The N/A tranny is strong enough (its also lighter)
2. Its easier to pull the engine alone on a 2nd gen
3. Its much easier and cheaper to put a turbo on a N/A then to do the motor swap( just yank out all the wiring except the ignition stuff, take out all the injection stuff, buy a manifold from RB and a weber sidedraft carb and turbo hat from your local VW shop, get a turbo and manifold(very easy to make thanks to RB exhaust flange) get some intake tubing and done) yes its that simple.

so are u talking from experience or stuff u read on the internet.
I have heard of ppl breaking the n/a tranny every 2000miles from the abuse of a turbo motor.
Its gotta be hard to control the turbo with a carb, i've heard of lost of complications, its't it hard to compress air through a carb?

mattrx7N/A 11-07-02 10:16 PM

Im talking from experience on this, I guess if you like to pop the clutch at 6000 you will break the tranny. And also its very easy to run a turbo with the carb you just need common sense. If you stay under 12 psi run good gas and plugs an intercooler, retard the timing the N/A engine does fine. But hey the world hates poeple who are different so just keep doing your engine swaps.

-Matt

Turblown 11-07-02 10:35 PM


Originally posted by mattrx7N/A
Im talking from experience on this, I guess if you like to pop the clutch at 6000 you will break the tranny. And also its very easy to run a turbo with the carb you just need common sense. If you stay under 12 psi run good gas and plugs an intercooler, retard the timing the N/A engine does fine. But hey the world hates poeple who are different so just keep doing your engine swaps.

-Matt

SO KEEP TO THE NORM, lol j/k do u have any pics of your setup?

mattrx7N/A 11-07-02 10:46 PM

Im still waiting on the turbo for my current car but as soon as its done ill post some pics, ill put them on my thread: Cheap and Fast , as soon as possible. You can read about my 87 N/A (soon to be turbo) there.

-Matt

bcty 11-08-02 12:13 AM

so any clutch and flywheel from any year will fit into my 87 GX tranny? i thought they were a diffrent size?

chrispapas 11-08-02 03:33 PM

nice job

RotorMike 11-09-02 11:54 PM

If anyone is looking for a new ported second gen engine for this type of swap, I am selling one. Check out my thread under second gen parts. I have all the accessories needed, including a hi-po turbo, trans, digital fuel injection or the factory system, racing beat down pipe and so on. Let me know as I will be somewhat flexible on the price since I won't start my next project until I sell this drivetrain. Still in the car so I can prove what condition it is in.

Canadian Rotary Man 11-12-02 03:04 AM


Originally posted by GTR
actually, theres things you have to consider mattrx7. when you boost a N/A, it's not really built that way. If you would want it to be reliable, you're gonna have to build up the motor to accept boost reliablity. so why not get a turbo motor that's already has all that... makes sense ..
I have always had and intrest in turboing my NA engine. What do u mean by building it up to accept boost? How would u go about doing that?

Can't u just run a bit lower boost to make up for the higher compression of an NA engine?

RotorMike 11-12-02 12:44 PM

The turbo engine has a lot of internal modifications to allow it to handle the boost and heat. I would never suggest running jmore than five pounds on a NA engine block.

Canadian Rotary Man 11-13-02 01:31 AM

5 pounds ain't much

what boost does a stock T2 run at?

RotorMike 11-13-02 10:34 AM

a stock TII runs about 8 lbs, with a good downpipe and exhaust that jumps up to 9-10 lbs. I ran mine as high as 14 lbs. You can really feel the 10 pounds forcing you into your seat.

Canadian Rotary Man 11-15-02 02:26 AM

thanks
:D

silverrotor 11-15-02 06:59 AM

I'd like to know It a Turbo II Motor and Tranny will bolt directly to my GXL LSD Differential (of the same year).

I know the na Tranny cannot sustain the abuse the Turbo Motor dishes out but what about the na LSD as opposed to the Turbo Differential? Would It be recommended to swap out the na one to that of a Turbo one?

*edit* I'm aware the Drive Shafts have to be replace aswell.:)

RotorMike 11-15-02 10:05 AM

the tranny will not last, but the rear dif should be ok up to 250 hp or so. Besides that it is almost a drop in change

Angel Guard Racing Team 11-15-02 11:27 AM

650 cfm #4011 holley marine, Racing beat TII intake manifold (No more waiting for Jay-Tech RIP) turbonetics pressurizer, aeromotive carburator fpr, a good fuel pump, TII turbocharger and exhaust manifold, blow off valve, early distribuitor, already existing trailing coils, some fittings, steel braided fuel lines and someone who can do the settings right.
Holley Marine 650 cfm: About $250.00
Aeromotive fpr: $150.00
Racing Beat Intake Manifold for TII: I got for $210.00
Braided lines: Depending on where you buy the price is per-foot
Fuel pump: I got a Walbro: $110.00
TII Turbo: I got for $150.00
I had the blow-off
Turbonetics pressurizer: $75.00
Fittings: $45.00
Distribuitor: $75.00
Settings: Go figure someone on your are who can do them (I got somebody)
Have fun!!!

Turblown 11-17-02 03:54 PM

@ angel guard
no offense or anything but haven't u blown a handlful of engines? Does it have anything to do with have a carb instead of EFI?

ACTION RT 11-18-02 03:39 PM

Go to my site.

http://members.rogers.com/rtsracing/intro.htm


has some before and after pics of my conversion.

wankel drwankel 11-19-02 06:31 PM

well guys i have successfully done the swap that kabooski is talking about. and there is one very important aspect that everyone is forgeting. there are three major plugs inder the passengers side dash that will not mate between the 86-88 and the 89-91 harness and a few extra wires that need to be wired into the dash if anyone needs help with this email me (when u get to this point) and i will help you

RXTHIS 11-19-02 10:20 PM

thanks.. I have been looking for a write up like this for months now. finially i can start planning.....
dave

hIGGI 11-22-02 08:02 AM


Originally posted by Mykl
Oh, I have a recommendation.

I've not ever pulled an engine from an RX-7, but I would think that it would be much much easier to pull the engine and transmission both at the same time rather than trying to line the engine up with a transmission that's resting on a jack when you try to reinstall the engine.

I'm sure it would take a bit of maneuvering to get them both in and out at the same time, but overall I would think that it would make installation of the engine easier.

What are your thoughts on this? Do you think it would make it easier or more difficult?

Some guys are removing engine+transmission+front subframe all bolted together - lifting front of the car, not engine......


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