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What's the biggest turbo run on an FC?

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Old 03-05-06, 10:29 PM
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What's the biggest turbo run on an FC?

And how did it run? The biggest I've seen on the forums is something like a T4 with a 1.1 A/R.

I'm sure there's bigger out there and I'm just wondering how other people's are running.
Old 03-05-06, 11:36 PM
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What are you looking for? A dyno queen? Too large of a turbo for the engine, while producing impressive peak HP #s on a dyno, is pretty darn useless on the street. If anything, I plan to size my turbo on the small side when I get to that point - I'd take faster spool & better midrange torque over peak HP.

Also, you'll have MUCH better luck asking in the single turbo forum. That's where most of the turboheads live.

-=Russ=-
Old 03-05-06, 11:39 PM
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The single turbo forum is all FD guys... I've heard of a T88 on an FC as well as a GT42R but never actually seen them personally...
Old 03-05-06, 11:42 PM
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Its not like the FD is a different car, no reason we cant run what they do.
ill be swaping from my TO4B 1.15 to a MasterPowers T70 or AF61R in spring, and you can go much bigger than that if you want.
Old 03-06-06, 02:31 AM
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ok, I didn't realize a T70 was bigger.

And thanks for the almost completely off topic post , Syonyk. I'm not asking for advice, the last thing I need is a bigger turbo. I would just like to seem some comparisons in performance, i.e., lag, response, HP between large turbos.
Old 03-06-06, 02:51 AM
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yeah..i have a t70 master power..... its pretty damn big came w/ a dinky .68 turbine....... im switching to a .98-1.00 divided before my motor is finished
Old 03-06-06, 03:07 AM
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Originally Posted by Syonyk
What are you looking for? A dyno queen? Too large of a turbo for the engine, while producing impressive peak HP #s on a dyno, is pretty darn useless on the street. If anything, I plan to size my turbo on the small side when I get to that point - I'd take faster spool & better midrange torque over peak HP.

Also, you'll have MUCH better luck asking in the single turbo forum. That's where most of the turboheads live.

-=Russ=-
actually...
for instructions on making any dyno queen...
ask on supra forums...
Old 03-06-06, 03:28 AM
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I'll be using a GT42 with a 1.15 A/R in my FC...it will be mated to a 20B though...
Old 03-06-06, 03:34 AM
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Originally Posted by bcool
I'll be using a GT42 with a 1.15 A/R in my FC...it will be mated to a 20B though...
Old 03-06-06, 04:07 AM
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Originally Posted by 13b4me
https://www.rx7club.com/20b-forum-95/3-rotor-swap-pictures-507321/
Old 03-06-06, 05:25 AM
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Originally Posted by ShadowX
And how did it run? The biggest I've seen on the forums is something like a T4 with a 1.1 A/R.

I'm sure there's bigger out there and I'm just wondering how other people's are running.
Are you asking about compressor size or just the turbine A / R???
When most people talk about "turbo size", they are usually implying compressor size.


-Ted
Old 03-06-06, 05:40 AM
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^^^^^ Te Gusto?!
Old 03-06-06, 07:03 AM
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In the past 2 years here in the rx7 world alot of people have been going with a larger compressor and small backside. Kinda best of both worlds performance. You get more power with a reasonable spool. A while back some people would use a small 60-1 with a large 1.15 backside for around 350 at 15lbs on pump gas and fullboost at 3.5k rpms. Now people are using much larger compressors and small .81 or .84 backsides for 400-430 on pump gas with full boost around 4.5k rpms. A few people might say that they have been doing this for a long time and all that BS but it never was documented as it is today.
Old 03-06-06, 07:04 AM
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Thanks for clarification, Ted. I'm kinda fuzzy on how turbos are compared size wise, I'll have to look up what A/R really refers to then.

Thanks 13b4me And RXn407 thanks for providing such a comprehensive and contrsuctive post. WTF is with all the post ****** on the forum nowadays?

Last edited by ShadowX; 03-06-06 at 07:26 AM.
Old 03-06-06, 08:19 AM
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Originally Posted by Bukwild
In the past 2 years here in the rx7 world alot of people have been going with a larger compressor and small backside. Kinda best of both worlds performance. You get more power with a reasonable spool. A while back some people would use a small 60-1 with a large 1.15 backside for around 350 at 15lbs on pump gas and fullboost at 3.5k rpms. Now people are using much larger compressors and small .81 or .84 backsides for 400-430 on pump gas with full boost around 4.5k rpms. A few people might say that they have been doing this for a long time and all that BS but it never was documented as it is today.
Hondas have been doing this with T3/T4 hybrids.
They have been doing this for over a decade in drag racing.


-Ted
Old 03-06-06, 09:05 AM
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Originally Posted by RETed
Hondas have been doing this with T3/T4 hybrids.
They have been doing this for over a decade in drag racing.


-Ted

cool, I am not really up on what the honda world is doing past, present, or future.
Old 03-06-06, 09:47 AM
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Originally Posted by ShadowX
Thanks 13b4me And RXn407 thanks for providing such a comprehensive and contrsuctive post. WTF is with all the post ****** on the forum nowadays?
With an attitude like that, you should buy an XS Power turbo... They are the best...
Old 03-06-06, 11:10 AM
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PWNED!!!!


Old 03-06-06, 11:59 AM
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Wow very nice... I applaud you, young grasshoppa...
Old 03-06-06, 12:37 PM
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Originally Posted by Bukwild
In the past 2 years here in the rx7 world alot of people have been going with a larger compressor and small backside. Kinda best of both worlds performance. You get more power with a reasonable spool. A while back some people would use a small 60-1 with a large 1.15 backside for around 350 at 15lbs on pump gas and fullboost at 3.5k rpms. Now people are using much larger compressors and small .81 or .84 backsides for 400-430 on pump gas with full boost around 4.5k rpms. A few people might say that they have been doing this for a long time and all that BS but it never was documented as it is today.
Past 2 years??? People have been doing this for a long *** time... how long have t3/t4's been out??? theres nothing new about this. And this concept is the same for the upgraded stock turbo. Where have you been ?
Old 03-06-06, 12:43 PM
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Originally Posted by MARTIN
Past 2 years??? People have been doing this for a long *** time... how long have t3/t4's been out??? theres nothing new about this. And this concept is the same for the upgraded stock turbo. Where have you been ?
Originally Posted by Bukwild
A few people might say that they have been doing this for a long time and all that BS but it never was documented as it is today.
lol
Old 03-06-06, 01:50 PM
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Locally I have seen a T04R and T70.

A local guy is going to be using a T88 on a 20b if I remember right.
Old 03-06-06, 01:56 PM
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T04R on Dotys AE made 408rwhp.
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