Compound Turbocharging

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DrifterProdigy85
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Joined: Sat Jul 02, 2005 7:42 pm
Car: 1989 Nissan 240sx (Zenki Onevia)

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hugogos22 wrote:This is Damiens Civic on PTE 6765 Ran a 9.7 at 156MPH. check post #48http://www.honda-tech.com/show...age=2

this is mike from awd performance in south fl ran 8.98 @ 156mph 784 hp

http://www.youtube.com/watch?v=xuT3P5Sb2us
I stand corrected buddy. These new billet wheels look amazing. Thank you for showing me these. Since everything is lighter, there so much more effecient. Im seriously debating on doing the 6262 or 6765 now. I really only want like 700whp when im all done.
Modified by DrifterProdigy85 at 10:55 PM 6/8/2009


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hugogos22
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If you have traction problems get slicks. They really are amazing if you have any questions let me know. 500HPSILVIA just wrapped up is install hoping for 700RWHP on E85.

DrifterProdigy85
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I run MT ET Street Radials. Normally they grip pretty good. Im becoming more and more sold on the 6262. Im not looking for more than 700hp so this turbo seems perfect for me. Allow me to get some spool back and make more overall power.

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hugogos22
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The PTE6262 is damn near perfect for what you want. CWILL down hear in miami just intalled it and made 7 and change. The only thing you have to do is get a new Downpipe Flange. It should drop right in contact Mike at [email protected] he can get them at a really good price. Your coupe is going to run like hell.

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spanishricer
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Car: '95 240SX & '03 M45
Location: DFW, TX

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Well thank gawd this is over and you've finally decided just to ditch that old and busted turbo for some new hawtness.

DrifterProdigy85
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Its still up in the air. Id like to upgade to a MAP setup and see how well my T04Z really spools. I was looking at the EVO chart of the 6262 and there making nearly the same tq during spool up that i do. My T04Z isnt old by any means. The T04R is the old journal bearing one. T04Z was introduced in mid 2007. With its dual ball bearing center, the turbo is more effecient making it spool and respond close to the GT35R but make power like a 40R. My numbers just arent that impressive yet cause its still on 93 octane and the stock ecu.

DrifterProdigy85
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Im really done pushing the compound setup cause nobody is taking an interest on it so its like beating a dead horse. Its been proven to work by Diesels, Supras, and a few others. Thats all that matters. It'll just take some time for someone to really do this on there SR. Maybe someday ill hit the lottery and use a GT42R and a GT3071R together and see what happens. lol.

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Fibre guy
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Car: 91' s13 RB25DET, 95' s14 bone stock, 87' Wrangler 4.6L stroker

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Well seeing how there is barely enough room in there for a large frame turbo alone, having a large and a small one seems really tough. You have to understand that most of the SR swaps have very little room left. This would even more difficult with an RB as the GTR t25 turbos barely fit. The theory of compound turbocharging is awesome but all of us just like to keep it simple. Our single turbo manifolds are already seeing thousands of $$$. I wouldn't even want to think about a compound manifold.

On a side note, I would really hate to be next to one of those setups at a start line.

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supreamS14
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Car: 96 240sx S13-blacktop Sr20deT

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Sorry to thread jack but it seems that you would know Drifter. Have you ever looked at variable turbos. I heard they use them on diesel motor's and work good. Just expensive. I hate clutter.

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Fibre guy
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I don't think diesels apply as an example to us because of their higher exhaust pressure.

DrifterProdigy85
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Car: 1989 Nissan 240sx (Zenki Onevia)

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For a compound setup you will need to place the small turbo out front near the PS Pump. The big turbo can stay top mounted where its normally at. The Manifold has to be made with 90* bends facing down into a flange and then single piping running to the small turbo with the wastegate mounted off that pipe down near the frame rail facing up toward the big turbo. The exhaust pipe from the small turbo should be able to feed into the big turbo then and have the outlet of the big wastegate go into the pipe as well. It would be tight but it will work. A Supras engine bay is just as cramped as ours. You just gotta space the turbos out a little bit to make room for the piping in between. Just be creative and it can be done.
Modified by DrifterProdigy85 at 11:34 PM 6/9/2009

DrifterProdigy85
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supreamS14 wrote:Sorry to thread jack but it seems that you would know Drifter. Have you ever looked at variable turbos. I heard they use them on diesel motor's and work good. Just expensive. I hate clutter.
I have looked at them and there used mainly on diesels because there exhaust temps dont reach nearly as high as a gas engine does.

V8slayr
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Joined: Wed Feb 04, 2009 1:21 pm
Car: 97 240sx

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I guess we'll find out soon if it will work on a 4 cylinder, check this s*** out.

http://www.dsmtuners.com/forum...84153

DrifterProdigy85
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If a DSM can do it, we can do it too. I so want Mazworx to do this just to show everyone what would happen. I wanna see how fast he can get a GT42R to spool up.

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vocationalzero
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The guy who did this (all the welding work and plumbing and turbo work) compounded his 2jz in his car and is running over 700 whp. The guy who does the work is cool as hell too. I work across the street from Boost Logic, they do amazing work and I've had him do some welding work for me as well and it's gorgeous.

DrifterProdigy85
Posts: 1817
Joined: Sat Jul 02, 2005 7:42 pm
Car: 1989 Nissan 240sx (Zenki Onevia)

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That DSM has his car running now. Wont be too much longer till he drives it and hopefully dyno's it.

V8slayr
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Car: 97 240sx

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I can't wait to see how it turns out. Spool, torque, power, etc. Like drifter said if a DSM can we can, It just seems to me like our cars could be a little more space limited due to the strut tower and all that, but who knows.

DrifterProdigy85
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Car: 1989 Nissan 240sx (Zenki Onevia)

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Thats why i said about spacing the turbos out farther so you have a little more room for the piping. If i didnt already do my RB25 swap in my other car, i would have gotten someone to do a compound kit for me.

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supreamS14
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Thinking about it, it would be good to see a big top mount turbo and a small bottom mount compound set up.

DrifterProdigy85
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Joined: Sat Jul 02, 2005 7:42 pm
Car: 1989 Nissan 240sx (Zenki Onevia)

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Thats not a bad idea but i dont know how well the internal gate would work on the small bottom mount turbo. It works for diesels so it might work. Personally i wanna do a GT28R/T3 and T04Z or GT42R and use 2 44mm wastegates. Im just unsure if the GT28R is big enough for either turbo.

V8slayr
Posts: 104
Joined: Wed Feb 04, 2009 1:21 pm
Car: 97 240sx

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Drifter how serious are you about trying this. I think it would be f-ing awesome. But your car if fast as hell as it sits. Are you really considering giving it a shot some day???


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