Single Turbo RX-7's Questions about all aspects of single turbo setups.

To4s vs. To4r

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Old Apr 26, 2004 | 10:46 PM
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Arrow To4s vs. To4r

can anybody give me some experienced based feedback on the two. I have researched and know some of the pros and cons, but would appreciate the advice of more seasoned enthusiasts. thank you
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Old Apr 26, 2004 | 10:56 PM
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i had both and they both perform about the same but the t04r will make alot better power. it might come onlone just a hundred rpms or so off of the t04s but they will be close. i highly recomend the t04r.
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Old Apr 27, 2004 | 02:24 AM
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BY who though????
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Old Apr 27, 2004 | 03:47 PM
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thanks crusader, I kinda had my mind made up about the to4r anyway.good to know!
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Old Apr 27, 2004 | 03:52 PM
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The new GT 66 wheel might even be better then a T04R, or the T04S. They all use the same cover.
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Old Apr 28, 2004 | 03:15 PM
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is that a hks model?
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Old Apr 28, 2004 | 10:37 PM
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Originally posted by sub-zero
The new GT 66 wheel might even be better then a T04R, or the T04S. They all use the same cover.
Sub Zero, I haven't heard of the GT 66 wheel. Who is the manufacturer for that? It sounds like an HKS model but I don't know. What info do you have on it? Thanks in advance.

Zach
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Old Apr 30, 2004 | 03:58 PM
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Garret makes a 67mm - 63 mm in there GT series. Precision turbo calls theirs a PT 67. I really cant tell much difference by looking at the wheel what the hype is about compared to the old T series, but hopefully if I ever get all My parts I will be able to tell You how it compares to the T-72 I had last year.
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Old May 5, 2004 | 12:45 PM
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From: SO CALI
i have the T04r on my Fd, it spool not as quick as my T04e, but it made a lot more on top. I have the hks t04r kit.
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Old May 5, 2004 | 02:00 PM
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Originally posted by sst760
i have the T04r on my Fd, it spool not as quick as my T04e, but it made a lot more on top. I have the hks t04r kit.
At what RPM does it begin to generate target boost?
I'm in the market for a single. Right now I'm leaning towards the T04s .70/1.00 intake/exhaust ar with a P-trim exhaust.
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Old May 5, 2004 | 03:06 PM
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From: SO CALI
my car hit 14lb just below 5200 rpm. the t04e is around 5k, i have a large street port motor.
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Old May 5, 2004 | 03:47 PM
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From: 1 foot in Boston 1 in NJ
Originally posted by sst760
my car hit 14lb just below 5200 rpm. the t04e is around 5k, i have a large street port motor.
That sounds a little high compared to what I've heard from other people.
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Old May 5, 2004 | 04:05 PM
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Originally posted by sst760
my car hit 14lb just below 5200 rpm. the t04e is around 5k, i have a large street port motor.
You must be running with your wastegate open ALL the time, or your car has MAJOR issues.

T04E 14psi by 2800~3200 RPM

T04S (60-1) 14 psi by 3200~3800 RPM

T04R 14 psi by 3700~4400 RPM

These are estimates using my own experiances and MANY forum members (other forums as well). It all depends on your set up (manifold type, turbine trim and A/R, intercooler, intake, porting etc).

~Mike..............
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Old May 5, 2004 | 05:41 PM
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Actually a lot of it would depend on what compressor and turbine wheel you stick in those housings.

STEPHEN
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Old May 6, 2004 | 12:16 PM
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i got full boost buy like 4400 with hks undivided.
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Old May 9, 2004 | 06:18 PM
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I have an XS Engineering T04E kit, ordered with a 1.00 exhaust A/R to reduce backpressure. 15psi by 3500rpm, stock engine.

Last edited by Sidestick; May 9, 2004 at 06:23 PM.
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Old May 29, 2004 | 07:51 PM
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Would it also not depend on what gear your in and what speed.
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