JZ 97 SS 1500
Turbocharger Engineer
- Joined
- Jul 2, 2001
Yes with alky you can pretty much spool whatever you want within reason once its dialed in.
Forced Induction's FI91X report!
- Thread starter Alky V6
- Start date
JZ 97 SS 1500
Turbocharger Engineer
- Joined
- Jul 2, 2001
JZ 97 SS 1500
Turbocharger Engineer
- Joined
- Jul 2, 2001
Just cut the T4 flange off and weld a T6 flange in.
Believe me, for me, it will be far easier to make an adapter. Anyway, I need a little spacing (5/8" to 3/4") so that the compressor housing will clear the drysump pump drive belt. The spacer will also need to clock the turbo toward the radiator a little. 1/8 inch off the front side of the adapter should do it. Anyone have a suggestion on material to use for the adapter? Not stainless.
I've got to make it with a slight wedge shape so that it will clock the turbo towards the radiator slightly. I've seen the ones available on Ebay. It would be nice to be able to just buy one of those, but I need the wedge shape with the associated bolt holes on a different plane. It'll be easy stuff compared to what I've already done on this machine.
Don, if you don't want stainless I'd use regular low carbon steel like 1018 cold roll to match the expansion coefficient of the turbo. The coefficients for cast iron, 304SS, and low carbon steel are 6.55, 9.6, and 6.33 uinch/inch/F. I'm guessing the headers are 304SS and if the header flange is 304SS it will expand a good bit more (50% more) than the turbine flange which I assume is cast iron while low carbon and cast iron expand basically the same amount. To put some numbers on it, going from 70F to 800F (to guess a number for the pipe temp), a 4" flange in cast iron will grow 0.019", 304SS 0.028", and low carbon steel 0.018". So every heat cycle a 304SS flange and/or adaptor will squirm 0.011" back and forth against the cast iron turbine housing (or if it doesn't move it will warp that much). Get it JetHot coated if you want to rust proof it. If the header flange is 304SS you will still have the mismatch there but at least that stress won't be on the turbine housing, it should be handled by the adaptor.
[This is also the reason ATR used low carbon steel flanges on their 304SS headers because that matches up much better to both cast iron and aluminum than 304SS flanges do.]
[This is also the reason ATR used low carbon steel flanges on their 304SS headers because that matches up much better to both cast iron and aluminum than 304SS flanges do.]
JZ 97 SS 1500
Turbocharger Engineer
- Joined
- Jul 2, 2001
Can't wait to see the final product. Car is going to kick some major butt. The FI98X seems to be going on a GN now as well. Someone called up and ordered one for a big Alky motor GN as well. Maybe some pics will show up of it as well...
It's got to be a stage II headed deal. Haven't heard of any other GNs doing pure alcohol. It would be interesting to see what he's doing.
I took measurements today. The adapter will be 7/8" thick at the thickest edge and 3/4" at the thinnest edge. Allen head capscrews will hold the adapter to the T4 flange through recessed holes. The T6 flange will be held to the adapter with allen capscrews that will thread into the adapter. I'm going to pick up the material tomorrow and drop it off at the waterjet shop.
Thanks Brett. Can't wait to see that monster sitting in front of the engine.
That would be cool.Cool...Good luck! I see low, low 5's in your future
Scott Wile
Dont black out