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Adding turbo to 11.5 to 1 lsx370

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Old Apr 10, 2011 | 12:44 AM
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Default Adding turbo to 11.5 to 1 lsx370

What are yall's thoughts on adding mid mount turbo pushing a max of 6psi? Mod's in sig. Was thinking of a GT45 or bigger, but I just want the equivalent to a 100 shot all the time. Idea's please,,,
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Old Apr 10, 2011 | 03:21 AM
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Originally Posted by midevil1
What are yall's thoughts on adding mid mount turbo pushing a max of 6psi? Mod's in sig. Was thinking of a GT45 or bigger, but I just want the equivalent to a 100 shot all the time. Idea's please,,,
I would say drop the compression by swapping heads or pistons if you are going to run it on pump gas.
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Old Apr 10, 2011 | 08:44 AM
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e85 and let it buck
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Old Apr 10, 2011 | 10:52 AM
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People run boost on 11:1+ LS7s and new 5.0s all day.

E85 would be a big help if available.
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Old Apr 11, 2011 | 07:15 PM
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What size turbo would be compatible for a 500whp 370. Dont want lag and dont want high drive pressure's.
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Old Apr 11, 2011 | 07:51 PM
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All you want is 500? That is only a couple #'s on a good flowing 370
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Old Apr 11, 2011 | 07:51 PM
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Ball bearing Turbonetics Tc76, .96 AR will make 700+ and spools very quick.
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Old Apr 11, 2011 | 09:05 PM
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Originally Posted by rotary1307cc
All you want is 500? That is only a couple #'s on a good flowing 370
What I meant was, I have a 500whp 370 already and what would be an adequate match for it.

What kinda power would 6psi bring to the table with my motor? If I get over 650whp I will have to upgrade my clutch again...
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Old Apr 11, 2011 | 09:33 PM
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I think it will make close if not over 650 on 6psi if you have some decent heads, depending how fast the turbo spools your torque will probably be outrages
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Old Apr 11, 2011 | 10:09 PM
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Originally Posted by 9sectruck
I think it will make close if not over 650 on 6psi if you have some decent heads, depending how fast the turbo spools your torque will probably be outrages
L92's with aftermarket lite weight valves and stuff. Ported exhaust. I'd say they are pretty good heads. Making good number's Naturally anyway...
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Old Apr 11, 2011 | 10:21 PM
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What kind of rings are in it?
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Old Apr 11, 2011 | 11:02 PM
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Originally Posted by FMX05
What kind of rings are in it?
Diamond pistons with Hellfire's I believe. I will have to double check.
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Old Apr 12, 2011 | 12:30 AM
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Originally Posted by midevil1
Diamond pistons with Hellfire's I believe. I will have to double check.
Those Hellfire's will hold up to boost quite well. They motor must have been built with spray in mind? I'm with the rest of them, E-85 and let it eat. We are seeing more and more 10:1 pump gas motors and 11:1 E-85 motors these days.
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Old Apr 12, 2011 | 04:44 AM
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6lbs with an unrestrictive turbo (decent size turbine) will get you around 700 rwhp.
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Old Apr 13, 2011 | 09:49 PM
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Turbo I am looking at specs out the following:
exducer:97.8mm
inducer: 68.77mm
inlet: 4 3/16
compressor trim: 69
compressor: .66 A.R.

T-4 flange
trim: .92
A/R: 1.05
outlet: 4"

Think She'll get the job done.??? This will be mounted right at trans cross member. 3" y-pipe to 3.5" flowmaster merge to T-4 flange.
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Old Apr 13, 2011 | 11:11 PM
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Probably not enough compressor, the exhaust side seems good tho. Not sure if a 68mm compressor will support 650rwhp.
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Old Apr 13, 2011 | 11:13 PM
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Wait is that exducer the exhaust side? What kinda of Turbo is it? EBay?
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Old Apr 14, 2011 | 01:27 AM
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Originally Posted by turbo iroc
Wait is that exducer the exhaust side? What kinda of Turbo is it? EBay?
Looking at BW hybrid's. Probably have local shop here in Houston build me one. Had one built for a diesel I was racing a few years back...made 4 digit power with a single charger. Guy did a top notch job. Not a sponsor on here so...
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