Twin Turbo to Single turbo Conversion

Post by **JDM240sx** » Tue Sep 03, 2002 6:42 pm

Has anyone done this conversion? I like the idea of a phat T70 under the hood instead of twin turbos. Anyone have tips on this ?

YouTube · Post by **EZcheese15** » Tue Sep 03, 2002 6:42 pm

First of all, thanks for breaking in the new forum categories

Second of all, I don't think anyone has done this. V-6 engines are EXTREMELY difficult to convert from twin to single turbo. Right now, the turbos are tucked away under the exhaust manifold on each side of the engine, nice and neat. With a single turbo, you have to find a way to reroute all piping to the turbo, decide which side of the car you are gonna put it on, and get the pressure differences all figured out with having a lopsided turbo setup.

Also, on the Z32, there is NOOOOOO room for a single turbo. That engine bay is so packed already, you can barely squeeze upgraded twins in there.

I'm not saying it's impossible, it's just highly impractical.

Post by **looksLikeA240** » Tue Sep 03, 2002 6:42 pm

weird, i posted the same reply to the same question in the thread below this one a week ago

Post by **not_a_porsche** » Tue Sep 03, 2002 6:42 pm

I've seen it done on Z's. It is a really popular on the Supra's.

The single turbo takes longer to spool up but once it starts moving watch out. Mostly a 1/4 mile mod, you can run more boost but sacrifice driveability.

YouTube · Post by **EZcheese15** » Tue Sep 03, 2002 6:42 pm

not_a_porsche wrote:I've seen it done on Z's. It is a really popular on the Supra's.

The single turbo takes longer to spool up but once it starts moving watch out. Mostly a 1/4 mile mod, you can run more boost but sacrifice driveability.

Like I said, it's possible, not practical. And btw, Supra's are I-6's not V-6's. They are much easier to convert to single turbo since its on the same exhaust manifold and both turbos stock are on the same side of the engine.

Post by **boileralum00** » Tue Sep 03, 2002 6:42 pm

not_a_porsche wrote:I've seen it done on Z's. It is a really popular on the Supra's.

The single turbo takes longer to spool up but once it starts moving watch out. Mostly a 1/4 mile mod, you can run more boost but sacrifice driveability.

On a Z32? I'm calling BS until you show a picture.

YouTube · Post by **EZcheese15** » Tue Sep 03, 2002 6:42 pm

boileralum00 wrote:On a Z32? I'm calling BS until you show a picture.

Same here. I'm not doubting that it's been done, but I've never seen it nor heard of it.

Post by **not_a_porsche** » Tue Sep 03, 2002 6:42 pm

start here

here's a pic of one

and another

YouTube · Post by **EZcheese15** » Tue Sep 03, 2002 6:42 pm

not_a_porsche wrote:start here

here's a pic of one

and another

Um....that first picture is a Z32 Single Turbo because that's a SR20DET in it.

The second one admittingly is a VG30, which I admit looks insanely modified and proves my previous statement wrong. Thanks for the pic!

Post by **not_a_porsche** » Tue Sep 03, 2002 6:42 pm

EZcheese15 wrote:Um....that first picture is a Z32 Single Turbo because that's a SR20DET in it.

Hmmm, so it is. Good catch, I am glad someone is paying attention.

Quote »Thanks for the pic! [/quote]

No problemo!

Post by **boileralum00** » Tue Sep 03, 2002 6:42 pm

The CIMA motor is still not a stock Z32 motor, but it is at least a V6. Plus, the guy is only putting down 500 RWHP with that setup? There is a guy in Columbus, OH, putting out ~ 550 @ 14psi (only 2 more psi) on a Greddy TD-05 setup w/ a lot lower cost than all of that custom piping.

Twin Turbo to Single turbo Conversion

Twin Turbo to Single turbo Conversion

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