which flywheel do I need?

[Super Sport]

I'm trying to determine which flywheel I need. I'm replacing a 1G 6 bolt engine with a 1G 7 bolt engine. 92, stick shift, fwd.
The flywheel that came out was stepped. The flywheel I got with the motor isn't.
I assummed that the 6 bolt was stepped and the 7 bolts weren't. I just read a post about resurfacing flywheels and saw a 6 bolt non stepped. Now I'm confused as to what I need.

 

[Archeryfreak]

I'm going to go ahead and say you need to keep what is on the engine you are putting into the car. The transmission and clutch should be matched with the engine.

Luke

 

[Super Sport]

I'm not sure if that's the right one. All I know is it's a 7bolt. May not even be the one for that engine.

 

[6damian6]

You need a 1g 7bolt fwd flywheel that is "stepped"

*unless your using a awd transmission converted to fwd*

RRE's Clutch And Flywheel Tech Info
scroll down

 

[Super Sport]

A 1G and a 2G are different then? How do I know the difference?
btw, thanks for the link.

 

[6damian6]

you can use av2g fwd flywheel, just no swapping awd/fwd flywheels.

 

[bryanwheat]

The non stepped flywheel is from a non turbo. You have to match the flywheel to the engine AND the transmission. The bolt pattern is what matched to the engine, and the diameter and step are matched to the transmission. 1g and 2g turbo flywheels are interchangeable between transmissions also.

 

[6damian6]

The non stepped flywheel is from a non turbo. You have to match the flywheel to the engine AND the transmission. The bolt pattern is what matched to the engine, and the diameter and step are matched to the transmission. 1g and 2g turbo flywheels are interchangeable between transmissions also.

Thats not true entirely, im guessing op got a 7bolt turbo engine from a awd which isnt "stepped".

 

[Super Sport]

Maybe I should be a little more specific on what I have.
Originally the car is a '92, fwd, 6bolt, turbo, stick. I'm replacing the motor with a fresh 1G 7bolt non turbo block. I'm using the original trans.
Perhaps the reason the 7bolt flywheel I have isn't stepped is because it's from a non turbo engine?

 

[pauleyman]

All turbo flywheels are stepped. Doesn't matter what year. All NT flywheels are flat. Doesn't matter what year. Does this clear things up?
So....you have the following options. 6 or 7 bolt in either FWD or AWD. Doesn't matter what year. 4 options. 6 bolt fwd, 6 bolt awd, 7 bolt fwd, 7 bolt awd. That's it.

 

[Super Sport]

Thanks guys

 

[bryanwheat]

Thats not true entirely, im guessing op got a 7bolt turbo engine from a awd which isnt "stepped".

It is actually 100 percent true, thanks for trying to mislead the original poster.

 

[sigma68]

All turbo flywheels are stepped. Doesn't matter what year. All NT flywheels are flat. Doesn't matter what year. Does this clear things up?
So....you have the following options. 6 or 7 bolt in either FWD or AWD. Doesn't matter what year. 4 options. 6 bolt fwd, 6 bolt awd, 7 bolt fwd, 7 bolt awd. That's it.

So by this statement you will not be able to say use a 7 bolt turbo fwd flywheel on a 7 bolt NT fwd, is this correct? this is my dilemma at the moment and I just want to be sure of what I need to be looking for. thanks

 

[pauleyman]

Any flywheel will bolt up you just need either 6 or 7 bolt. As pointed out earlier there are 4 stepped choices and you choose the one that fits. The stepped flywheels fit the clutch designed for the turbo cars using turbo transmissions. The flat flywheels use a different smaller clutch and will mate with non turbo transmissions. Remove the flat flywheel and put on a 7 bolt fwd turbo stepped flywheel. There is no 1g/2g flywheel only the 4 options I mentioned.
There have been guys that used a non turbo tranny, clutch and flywheel on a turbo motor but usually only out of desperation to get the car driving.

On a side note you realize that motor has 9.0:1 compresion, no oil squirters, different piston to wall clearance and no provision for turbo oil return?