1990 6 speed flywheel Info Needed
#1
1990 6 speed flywheel Info Needed
Hello all,
I'm a new owner of 90 vette with a 6 speed ZF manual. I know these transmissions originally had a dual mass flywheel from the factory. I was already planning on changing to a single mass. After pulling the engine I discovered the factory flywheel had already been replaced with a single mass unit. Here's where my questions concerns begin.
1. I've read that some of these conversion single mass flywheel kits are too thick (around.100") if this is true what should the correct thickness be?
2. Is there a way to identify what type of flywheel I have by just a picture? I've searched it and I have not found any part numbers anywhere on it.
3. The engine going back into the car is an internal balance. I was told by the machine shop to just remove the external weight on the flywheel. I don't believe that is going to be "correct". The three threaded holes where the balance weight was attached will cause the flywheel to be too light on that side now. I'm I right?
4. This engine will be around 475 to 500hp so would I be OK even using this flywheel? If not, What brand steel flywheel would be a good choice?
Thanks in advance for any help you can give.
I'm a new owner of 90 vette with a 6 speed ZF manual. I know these transmissions originally had a dual mass flywheel from the factory. I was already planning on changing to a single mass. After pulling the engine I discovered the factory flywheel had already been replaced with a single mass unit. Here's where my questions concerns begin.
1. I've read that some of these conversion single mass flywheel kits are too thick (around.100") if this is true what should the correct thickness be?
2. Is there a way to identify what type of flywheel I have by just a picture? I've searched it and I have not found any part numbers anywhere on it.
3. The engine going back into the car is an internal balance. I was told by the machine shop to just remove the external weight on the flywheel. I don't believe that is going to be "correct". The three threaded holes where the balance weight was attached will cause the flywheel to be too light on that side now. I'm I right?
4. This engine will be around 475 to 500hp so would I be OK even using this flywheel? If not, What brand steel flywheel would be a good choice?
Thanks in advance for any help you can give.
#2
Melting Slicks
Hello all,
I'm a new owner of 90 vette with a 6 speed ZF manual. I know these transmissions originally had a dual mass flywheel from the factory. I was already planning on changing to a single mass. After pulling the engine I discovered the factory flywheel had already been replaced with a single mass unit. Here's where my questions concerns begin.
1. I've read that some of these conversion single mass flywheel kits are too thick (around.100") if this is true what should the correct thickness be?
2. Is there a way to identify what type of flywheel I have by just a picture? I've searched it and I have not found any part numbers anywhere on it.
3. The engine going back into the car is an internal balance. I was told by the machine shop to just remove the external weight on the flywheel. I don't believe that is going to be "correct". The three threaded holes where the balance weight was attached will cause the flywheel to be too light on that side now. I'm I right?
4. This engine will be around 475 to 500hp so would I be OK even using this flywheel? If not, What brand steel flywheel would be a good choice?
Thanks in advance for any help you can give.
I'm a new owner of 90 vette with a 6 speed ZF manual. I know these transmissions originally had a dual mass flywheel from the factory. I was already planning on changing to a single mass. After pulling the engine I discovered the factory flywheel had already been replaced with a single mass unit. Here's where my questions concerns begin.
1. I've read that some of these conversion single mass flywheel kits are too thick (around.100") if this is true what should the correct thickness be?
2. Is there a way to identify what type of flywheel I have by just a picture? I've searched it and I have not found any part numbers anywhere on it.
3. The engine going back into the car is an internal balance. I was told by the machine shop to just remove the external weight on the flywheel. I don't believe that is going to be "correct". The three threaded holes where the balance weight was attached will cause the flywheel to be too light on that side now. I'm I right?
4. This engine will be around 475 to 500hp so would I be OK even using this flywheel? If not, What brand steel flywheel would be a good choice?
Thanks in advance for any help you can give.
now there's multiple offerings. I'm sure you can have that flywheel balanced, but balancing $ and resurfacing $ might make more sense to get new.
#5
I'd think shop would suggest 'balance for confirmation' as mentioned in #2 - replace with another? Maybe weight a 'feature' you'd like to tweak! Hot spots - seems so!! What does the business side of the f'wheel look like? What weight? Shop I'd think have suggestions that could be considered valuable.
#6
Thanks for the replies. I'm leaning toward just purchasing a new flywheel that's a neutral balance unit. I'm sure this flywheel is nothing more than a stock replacement that's seen better days. If it would have had some type of part number to ID it to a good name brand I would go ahead and resurface it.
#7
I'd think shop would suggest 'balance for confirmation' as mentioned in #2 - replace with another? Maybe weight a 'feature' you'd like to tweak! Hot spots - seems so!! What does the business side of the f'wheel look like? What weight? Shop I'd think have suggestions that could be considered valuable.