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Index > Engine/Drivetrain > Thread: T2 repu
Thread: T2 repu
EricHappyMeal


1st Gear
Posts: 39
posted July 19, 2004 06:22 PM

T2 repu

well, im finally getting my repu on saturday. does anyone have any suggestions on getting the engine mounted? i was told that i should use a first gen front cover and use the mounts from that as well. its coming with an S5 block and a T2 tranny as well.

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EricHappyMeal


1st Gear
Posts: 39
posted July 22, 2004 10:24 PM

alright

so far i got changing the front cover to mount like a 1st gen cover plate does, or using a 1st gen's cover. and then use the tailhousing of a first gen tranny onto the T2 tranny. then gonna have to get a 1st gen crossmember and fix it a little bit to get it to work. i think that should work pretty well.

anyone have anything to add? or anything i might have clearence issues with?
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brad


Rotorhead
Posts: 1672
posted July 23, 2004 11:56 AM

quote:
so far i got changing the front cover to mount like a 1st gen cover plate does, or using a 1st gen's cover. and then use the tailhousing of a first gen tranny onto the T2 tranny. then gonna have to get a 1st gen crossmember and fix it a little bit to get it to work. i think that should work pretty well.

anyone have anything to add? or anything i might have clearence issues with?


put a 1st gen front cover on. check front cover seals and o-rings. Do you still have the REPU engine crossmember? Should work with 1st gen cover.

not sure about the 1st gen tailhousing on T][ trans but if it works I'll be looking at it.


       
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EricHappyMeal


1st Gear
Posts: 39
posted July 23, 2004 01:40 PM

quote:

put a 1st gen front cover on. check front cover seals and o-rings. Do you still have the REPU engine crossmember? Should work with 1st gen cover.

not sure about the 1st gen tailhousing on T][ trans but if it works I'll be looking at it.




with a first gen cover where do i need to put the whole for the turbo's oil line? and no the repu crossmember isnt there. it was converted into a 4 cyl again and the origional crossmember was gone.
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brad


Rotorhead
Posts: 1672
posted July 23, 2004 03:03 PM

turbo oil line in front cover

drill and tap the front cover below the oil metering pump. thread a 1/2" NPT fitting in there.
____________
-brad-
74 REPU Lawn Green
81 Rx-7 racecar. 12a J-
Bridge

       
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paulsrepu


Hauling
Posts: 107
posted July 31, 2004 10:35 PM

For my T2 conversion which I did myself, I used the oil pan and front cover from the original engine. You have to redrill the oil metering pump screws since they are in a different location, and drill a hole and weld or tap a fitting for the drain. I used the T2 bellhousing on a Rib-case 5 speed and shortened the slave cyl pushrod. You will have to have a custom clutch disk made.

       
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Tom93R1


Redlining
Posts: 458
posted August 04, 2004 03:53 PM

quote:
You will have to have a custom clutch disk made.
Why is that? My REPU has a 6-port motor from an 86 rx7 and I am running the stock 6-port clutch. Why wont the TII clutch work?
____________


'74 lawn-green
4-port 13b
Weber 48DCO
Racing Beat Header
Magnaflow
resonator/amplifier
really loud!

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rtrypwr


Hauling
Posts: 115
posted August 04, 2004 08:54 PM

clutch

turbo uses a larger diameter output shaft, and if i remember correctly a larger diameter disc and pressure plate. but that doesn't matter. anyone putting a turbo II tranny on there na stuff , racing beat sells a clutch disc for that conversion. i bought one two months ago...

       
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Jeff20B


Moderator
Posts: 661
posted August 05, 2004 01:38 AM
Edited By: Jeff20B on 5 Aug 2004 01:40

That's an option. It's easiest to remember that a turbo flywheel won't work with an NA tranny because turbo flywheels are bigger; they have a larger diameter ring gear that won't work with an NA starter, and the clutch disk itself is larger in diameter, not to mention the different spline count on the input shaft.

215mm clutch '71-'82 NA
225mm clutch '83-'92 NA
240mm clutch '87-'92 turbo
I can't remember what '93+ is at the moment.

Note: '71-'73 had a top mounted starter and a ring gear that was closer toward the front of the engine. The pressure plate and clutch disk will fit any '71-'82 flywheel (I took a good used set off of a '71-'73 flywheel and installed them on a '74-'92 RB light steel flywheel without a problem).

225mm clutch '74-'77 REPU is unique
____________
'74 REPU
'76 Cosmo
'77 MG Midget 13B
'81 RX-7

       
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rtrypwr


Hauling
Posts: 115
posted August 05, 2004 11:40 PM

clutch disc

it was for my 6 port

       
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EricHappyMeal


1st Gear
Posts: 39
posted August 06, 2004 08:52 PM

quote:
For my T2 conversion which I did myself, I used the oil pan and front cover from the original engine. You have to redrill the oil metering pump screws since they are in a different location, and drill a hole and weld or tap a fitting for the drain. I used the T2 bellhousing on a Rib-case 5 speed and shortened the slave cyl pushrod. You will have to have a custom clutch disk made.


why exactley did you use that tranny? would the T2 one not work?
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Jeff20B


Moderator
Posts: 661
posted August 07, 2004 02:37 AM

So is it spelled disc or disk? We have compact disc, floppy disk... What about the clutch?
____________
'74 REPU
'76 Cosmo
'77 MG Midget 13B
'81 RX-7

       
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EricHappyMeal


1st Gear
Posts: 39
posted August 07, 2004 05:14 PM

so im assuming the stcok repu mounts will be what i need?
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paulsrepu


Hauling
Posts: 107
posted August 14, 2004 01:13 PM

Sorry I was on vacation. I did not use the T2 transmission because it is much harder to adapt than the old rib-case 5 speed. I may as a winter project install the T2 transmission because they are easier to find and get parts for. By using the T2 bellhousing and starter and clutch assy. the transmission was basically a bolt in installation. The disk needs to be custom because the 240mm disk has the wrong input shaft dimensions. You can use the 226mm disk from a n/a 2nd gen RX7 but I guarantee that you will get slippage when drag racing. My stock 87 T2 engine with 80mm downpipe and 3" exhaust is pulling high 13 second quarter mile times at over 100. By the way, I drove it 1200 miles from CO to CA where I now live.

       
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EricHappyMeal


1st Gear
Posts: 39
posted August 16, 2004 10:50 AM

ic,did you have to get a custom driveshaft made with the rb-case 5 speed?

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paulsrepu


Hauling
Posts: 107
posted August 18, 2004 08:48 PM

Used the stock driveshaft, no modifications needed with ribcase transmission.

       
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