whats the difference between a 1g flywheel and a 2g?

[rmor2146]

Except for the flywheel bolt. Do they have the same teeth pattern number? Im doing a 1g swap and was wondering if I can use my 2g starter on a 1g flywheel. Thanks.

 

[GRNDSM]

NT flywheel and clutch pressure plate are completely different from turbo FWD! But you might be able to convert to a turbo FW and clutch, as long as your ring gear is the same diameter as the one on turbo DSM.

Also, bare in mind that turbo AWD and FWD flywheels are different, so do not mix them up. Most likely, you will need to get a FWD FW.

Leon
RR

 

[Morphius]

Originally posted by GRNDSM
...bare in mind that turbo AWD and FWD flywheels are different...

How exactly are they different? Weight? Dimensionally? I've heard alot of people refer to that, but no comments as to what is different. More speculation.

I've got a FWD turbo, FWD N/T here to compare. That's obvious. But the AWD to FWD isn't. And it would just happen that the one AWD clutch I have out, is back home 1400 miles away. From what I recall, they looked similiar.

No intent to run with the thread, but my question will benafit both me, the poster, fasteclipse1992, amonst others.

 

[FourG63 97GST]

The ring is different
if you put an awd flywheel on a fwd, the car wont start becuase the starter contact the fly

 

[Morphius]

Originally posted by FourG63 97GST
The ring is different
if you put an awd flywheel on a fwd, the car wont start becuase the starter contact the fly

It would sound as though the distance from the ring gear to the block is different. Which, logically, would mean the nose on the starter is different. Couldn't you just change the starter?

 

[GRNDSM]

Originally posted by FourG63 97GST
The ring is different
if you put an awd flywheel on a fwd, the car wont start becuase the starter contact the fly

That is why I am talking about putting a FWD turbo FW on NT FWD car!

The NT FW's that I have seen were "stepless". FW is flat, but pressure plate has a built-in step. Much like you see on domestics...

Leon
RR

 

[Mike1992]

awd vs fwd i dont remember but one is smaller in diamater ( i think awd is smaller)

Looks like the only way i can have a leight weight flywheel is to convert to a fwd turbo setup more money so maybe farther down the road as i just put a new clutch package in Also I am not for sure but pretty sure the turbo fly and clutch package will work in a nt tranny and vice versa

 

[Morphius]

Originally posted by Mike1992
awd vs fwd i dont remember but one is smaller in diamater ( i think awd is smaller)

I disagree with that and here is why. Look at the shield that bolts to the block, between the flywheel and the block. It has the mouting holes in it for the starter that match up to the tranny starter mounting. If you lay that shield from a 1.8, 2.0, 2.0T FWD and 2.0T AWD over each other. They are exactly the same. All the mounting holes line up. Meaning the diameter of all the ring gears are the same. Thus the starter location in relation to the centerline of the crank is constant.

Unless, the ring gear is smaller than some portion of the outer flywheel surface? More to investigate there.....

I think the difference why some flywheels do or don't work in one or more transmissions have to do with the depth of the flywheel (ie N/T to Turbo) or the location of the ring gear in relation to the back face of block. (ie FWD Turbo to AWD turbo) So in the end, in some cases, you could get by using a different flywheel if you used the matching starter.

 

[Wobble]

NT flywheels and thus clutches are smaller than Turbo flywheels and clutchs.

AWD flywheels and FWD flywheels are not interchangable, if they were you wouldent have to specify "FWD" or "AWD" when ordering..

the clutches are interchangeable between the 2 (AWD/FWD) but not the flywheels.

 

[Mike1992]

THE FWD FLYWHEELS ARE THE SAME SIZE IN TURBO AND NON TURBO, THE ONLY DIFFERENCE IS A TURBO FLYWHEEL HAS THE STEP AS THE NON TURBO DOES NOT. THE TURBO FLY IS A LITTLE THICKER BUT THE SAME SIZE DIAMTER! THE AWD FLYWHEELS ARE SMALLER IN DIAMATAR SO AWD AND FWD CLUTCHES ARE NOT INTERCHANGABLE.

 

[Ralli///Art GS]

So all this being said, you could put an aftermarket turbo FWD clutch and flywheel into a non turbo FWD. But you can't mix and match (i.e. turbo flywheel with a non turbo clutch) since the only FWD difference seems to be the step in the flywheel.

 

[Mike1992]

Originally posted by Ralli///Art GS
So all this being said, you could put an aftermarket turbo FWD clutch and flywheel into a non turbo FWD. But you can't mix and match (i.e. turbo flywheel with a non turbo clutch) since the only FWD difference seems to be the step in the flywheel.

Yes you are correct

Nice rims, those come off a 3g?

 

[AWDlaserRS]

I have decided to go with the ACT 2600, transmision is a '92 AWD and my question is this>

Ok Im currently doing a swap from my 1st gen 7 bolt to a 6-bolt I am rebuilding and obviously I cant use the old AWD flywheel. So I am now going to use the FWD flywheel that the 6-bolt originally had with an ACT 2600 clutch. Is there going to be any issues with this? I mean the FWD flywheel with the ACT 2600 and the AWD tranny?????

 

[pneumo]

Yep, you'll have issues. Take a look at the diameter of your two flywheels. The ring gear for the starter is farther out on the FWD flywheel. It won't clear the center shaft, and the starter won't bolt up. You have to use an AWD flywheel. Now's a good time to get that lightweight flywheel you've always wanted!

 

[AWDlaserRS]

Originally posted by pneumo
Yep, you'll have issues. Take a look at the diameter of your two flywheels. The ring gear for the starter is farther out on the FWD flywheel. It won't clear the center shaft, and the starter won't bolt up. You have to use an AWD flywheel. Now's a good time to get that lightweight flywheel you've always wanted!

The flywheel will bolt up fine with the starter, it was on there before I took it off to tear the engine down. The 6 bolt engine Im using came out of a FWD so obviously its own flywheel and starter are gonna fit back on.
I guess a simpler version of the question would be can you use a FWD flywheel on an AWD? (I probably should have wrote that in the first place )

 

[mark95turbo]

Originally posted by AWDlaserRS
The flywheel will bolt up fine with the starter, it was on there before I took it off to tear the engine down. The 6 bolt engine Im using came out of a FWD so obviously its own flywheel and starter are gonna fit back on.
I guess a simpler version of the question would be can you use a FWD flywheel on an AWD? (I probably should have wrote that in the first place )

No. The pressure plates are the same, but the flywheels are different between FWD\AWD. I have a 6 bolt flywheel that I had resurfaced to factory specs Ide sell ya for $50. The only problem is that it doesnt have any alignment pegs. I'm not sure why, but it was like that when I bought it. The ones from one of your old flywheels should work if you can get them out.

 

[AWDlaserRS]

Whats different about the FWD flywheel that makes it so it won't work with an AWD tranny?

My laser is all in one piece with its engine and everything, Im not pulling it apart until this new engine is ready to be put in so I can't look at both Flywheels side by side.

 

[pneumo]

huh? I already told you what was different about the FWD/ AWD flywheel The ring gear for the starter is a different diameter.

Why is that important?

Because the starter does not bolt onto the engine, it bolts onto the bellhousing, and the AWD bellhousing is made for an AWD flywheel, so the AWD tranny will position the start differently than the FWD tranny.
AWD tranny only works with AWD flywheel.
FWD tranny only works with FWD flywheel.

The short version goes like this; No, it won't work.

 

[AWDlaserRS]

Originally posted by pneumo
huh? I already told you what was different about the FWD/ AWD flywheel The ring gear for the starter is a different diameter.

Why is that important?

Because the starter does not bolt onto the engine, it bolts onto the bellhousing, and the AWD bellhousing is made for an AWD flywheel, so the AWD tranny will position the start differently than the FWD tranny.
AWD tranny only works with AWD flywheel.
FWD tranny only works with FWD flywheel.

The short version goes like this; No, it won't work.

OK ok I get what your saying now. So Im gonna need an AWD 6bolt flywheel. Pneumo, you say you got one for $50? Thing is I don't want to have to wait long, I was planning to get the new engine in this or next week . If I bought it off you do you think you could overnight it to me?

 

[mark95turbo]

Originally posted by AWDlaserRS
OK ok I get what your saying now. So Im gonna need an AWD 6bolt flywheel. Pneumo, you say you got one for $50? Thing is I don't want to have to wait long, I was planning to get the new engine in this or next week . If I bought it off you do you think you could overnight it to me?

I have an AWD 6-bolt flywheel I'de sell you for $50. But, take note that the alignment pegs are not in it. I was told that you can put the old flywheel in the freezer for a couple hours (4 or 5) and they should pull out with vice grips and if you use the same process they could be tapped back into the new flywheel. BUT, I also know that they are pressed into the flywheel from the factory, so I dont know how true this is about the freezing process. The flywheel I also have has been resurfaced to the factory step. Just let me know. If you want it overnighted I can do it as long as you pay for shipping. You can reach me at (309)532-3679 if you want it ASAP. Good luck!

 

[AWDlaserRS]

How much will it cost to overnight it??

 

[Morphius]

Is the FWD flywheel you have off a turbo car? The FWD/AWD turbo cars run the same flywheel. So, if that's the case it is reuseable.

The diameters are the same from 1.8L to 2.0NT to 2.0L turbo.

The difference is the distance the the ring gear is offset on the flywheel away from the block surface. (ie the snout of the starter is different.)

 

[AWDlaserRS]

Is the FWD flywheel you have off a turbo car? The FWD/AWD turbo cars run the same flywheel. So, if that's the case it is reuseable.

The diameters are the same from 1.8L to 2.0NT to 2.0L turbo.

The difference is the distance the the ring gear is offset on the flywheel away from the block surface. (ie the snout of the starter is different.)

Yes it is off a turbo car. Would it be possible to just swap the ring gears? Or depending on how much of a difference there is just use the FWD starter?

 

[Morphius]

Yes it is off a turbo car. Would it be possible to just swap the ring gears? Or depending on how much of a difference there is just use the FWD starter?

Ring gear is part of the flywheel, thus it can't be swapped.

I just this weekend pulled out all my parts, both starters and flywheels off a 1.8, 2.0NT, 2.0NT AWD, 2.0T FWD and 2.0T AWD.<<< (all 6 bolts) and a 7bolt 2.0T AWD flywheel. I found something very interesting. They all have the same snout on the starter. And the ring gear is in the same location, accross all of them. Thus, the starters are interchangeable. You should be able to use the starter that was in your car.

I'll be posting a tech article on this with pics and measurements.

 

[AWDlaserRS]

Yeah right after I posted that I went out and looked at the flywheel and figured out the ringgear thing wasn't gonna work. You say there all the same though? Ill be able to see for myself this week when I pull my current engine to start putting the new one in.

Where were you other guys getting your information from about them being different?

 

[Morphius]

Where were you other guys getting your information from about them being different?

There are probably 20 or people on here that will swear on their life that they are different. Those that have been interchanging NT and turbo motors/flywheels/trans.

I simply took their word for it, that there was a difference in the starters. Made sense as the depth of the Turbo flywheel was deeper that the NT.

Reality is the starters are all the same. Ring gear is the same. Flywheels are the same diameter. The trouble is with the depth of the flwheels. The transmissions have different castings for them and the turbo trans has a differnt bell shape to it allowing the deeper clutch/flywheel.

Like I said, I'll have pics and measurements soon.