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Rear mount right after headers

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Old Dec 7, 2004 | 03:15 PM
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Default Rear mount right after headers

im thinking about doing a rear mount custom system when i swap in a LQ4 and wonder what you guys thing about having a pipe cross over right out of the manifold that attached to the other side and have a turbo sitting right there at the back of the manifolds. Would this be able to turnout power levels of a front mount of close there too it. Id like to build an engine similar to parish8s but with this set up.

Also i dont have anyroom for a front mount intercooler and i was thinking about a WRX style intercooler with a hood scoop what do you think about that idea. The other thing i thoguht about was moving the radiator to the tailgate and putting in a front mount.
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Old Dec 7, 2004 | 04:47 PM
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Originally Posted by 59chevyapache
im thinking about doing a rear mount custom system when i swap in a LQ4 and wonder what you guys thing about having a pipe cross over right out of the manifold that attached to the other side and have a turbo sitting right there at the back of the manifolds. Would this be able to turnout power levels of a front mount of close there too it. Id like to build an engine similar to parish8s but with this set up.

Also i dont have anyroom for a front mount intercooler and i was thinking about a WRX style intercooler with a hood scoop what do you think about that idea. The other thing i thoguht about was moving the radiator to the tailgate and putting in a front mount.
You probably aren't going to be able to fit a turbo in front of the rear axle without some cutting on the floorboards, but if you did that, it could work. As for the WRX intercooler... that sounds like a plumbing nightmare going from a rear mounted turbo to a top mounted intercooler into the front of the throttle body, but it could possibly be done. You'd probably need a cowl hood for clearance with a scoop on it... which would look pretty dumb, but it might work. The 2 biggest downsides to top mounted intercoolers is that they are at the highest point of the engine bay so they have a tendency to heat soak, plus, after the air goes through the scoop and through the core, where does it go to? with a properly done front mount, the air passes through the radiator, where there is a low pressure area produced by the air dam. (or use some other method of evacuating the air from behind the core) If you just dump the air on top of the engine, you probably won't get nearly as much airflow.
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Old Dec 7, 2004 | 05:44 PM
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this isnt in a camaro this is in my 59 truck and theres plenty of room for a turbo and plenty of room under the hood for the intercooler. I could movethe radiator to the tailgate but that would kind of look bad.
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Old Dec 7, 2004 | 05:51 PM
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You could fit a dining room and chairs under a 59 Apache.
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Old Dec 7, 2004 | 06:04 PM
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do you think i could run a T-76 without major spool times. Id like to run 12 pounds of boost and be able to put down 550rwhp if i turn up the boost. also what size pipe should i use to fabricate the Y pipe from the headers to the turbo. There will be no cats or anyof that stuff and ill probably have a custom exhaust fabbed up at a muffler shop just need to know what size turbo and piping to use. Ill probably just use the stock truck manifolds offf the 6.0
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Old Dec 7, 2004 | 06:15 PM
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APS make a twin turbo kit for ls1 GTOs that puts the turbo's behind the headers. They sit inbetween the trans and the motor. There is a 9 second UTE running there kit.
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Old Dec 7, 2004 | 06:17 PM
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whats the website.
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Old Dec 7, 2004 | 06:55 PM
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www.aps-wrx.com/ls1/ls1.htm
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Old Dec 7, 2004 | 07:06 PM
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do you think i could turn those aps manifolds around and use them as a front mount. Also could you make a crossover with those ? would you be able to cut one and weld a pipe going to the other or would i have to bring a Y style pipe to the turbo thats bolted to both? Can you cut and reweld cast iron?
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Old Dec 7, 2004 | 07:08 PM
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Originally Posted by 59chevyapache
this isnt in a camaro this is in my 59 truck and theres plenty of room for a turbo and plenty of room under the hood for the intercooler. I could movethe radiator to the tailgate but that would kind of look bad.

My bad! Shoulda read your original post a bit better. Putting the turbo right off the back of the header would definately work well, Only real downside is the necessity of using a scavenge pump. Just be careful when selecting exhaust manifolds or headers as you don't want to go too large, since it will hurt spool times. I would probably lean towards just using the standard Cast Manifolds from the truck. It will help with spool time. As for the intercooler, how would you duct air to and from it? That's really the biggest issue. If the intercooler doesn't have air flowing through it, it won't be very effective. With how much room you have, you might want to consider using a liquid to air intercooler.
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Old Dec 7, 2004 | 07:28 PM
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I guess a air to water intercooler would work. I hadnt really thoguht about that. Does anybody know where I can get Single turbo Exhaust manifolds thats what im really trying to find but it seems pretty hard.
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Old Dec 7, 2004 | 09:28 PM
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Originally Posted by 59chevyapache
I guess a air to water intercooler would work. I hadnt really thoguht about that. Does anybody know where I can get Single turbo Exhaust manifolds thats what im really trying to find but it seems pretty hard.
You can get the old QMP manifold from Stainlessworks. I personally think you would be better off building something off of truck manifolds.. but if you want to start with something already built for turbos.. that's probably your best starting point.
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Old Dec 7, 2004 | 10:27 PM
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I think im just gonna go supercharger. I know they have some disadvantages to turbos but i can deal with it seeing as at most id like to make 600rwhp.
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