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Why not keep the stock 8"? If that breaks, mod in a MKIV rear end.

MKIV is a mid/rear, whatever you want to call it, same as the MKIII. In fact, the JZA70, and JZA80 pans are the same part.

I still run stock lines on mine

And that's on a 1JZ right? A 1.5JZ is going to be worse. How much bigger is the GT42's compressor housing over the GT40? I have an HKS long runner manifold that sits the turbo pretty low: That's a 4" inlet pipe on the cold side, to get an idea of the size of the turbo. The 1JZ is pictured...

Was there an option?

I saw a test done at a local shop. They took a stock BMW Z4, and put it on the dyno. Then they changed the stock wheels out for some lightweight wheels. I don't know the exact weight difference, but the car made 15WHP more just by lightening the wheels. I wouldn't have believed it if I didn't...

four! The spring, the diaphragm, and the valve, which is actually two pieces!

Quite a few times. I know every little piece that's inside of these things.

The SSQV won't stay open just on idle vacuum alone. There is a small restrictor inside the unit that will actually equalize the vacuum pressure cross the diaphragm over time. This means that once the idle has stabilized to a consistant vacuum, the SSQV will equalize the pressure across the...

you DO know that they're a vendor on this site right guys?

make me some clear cam covers too......

thicker o-rings on the top of the injectors.

I just run a wideband........ ....and a standalone ;)

Really? well that explains it! My pump whines and has greyish liquid too. Ever since I put in DEX-III. That's with two power steering coolers. It's a shame I sold my spare (almost new) pump.

If you're looking for a cheap alternative for an intercooler kit, this would NOT be it, but I figured I sould explain in a little detail how I fit the JZA80 kit into my JZA70: The kit, HKS R-Type JZA80 intercooler kit. 12x24x4" core, 2.5" piping on hot side, 3" on cold. Even comes with a power...

that's quite the ride height you have there ;)

This thread is worthless without pics.