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torn on turbo selection for my 408 build

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Old Mar 4, 2012 | 10:57 PM
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Default torn on turbo selection for my 408 build

starting to track down parts for a new build and im torn on turbo selection. Gunna be a 6.0l iron block, stroked to 408, all forged internals, dished pistons to give me around 9:0 compression. 317 heads, 100lb injectors, hi ram intake etc etc etc. I want to make around 800-900rwhp on pump gas. I do not go to the track often but id like to be running in the low 10's high 9's when I do. Now I am torn between using TWIN master power p trim 70's with an .81 A/R, or running a larger single, thinking a s488 with a 1.10 A/R or possibly a turbonetic t88. Whats all yalls thoughts on those choices?
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Old Mar 4, 2012 | 11:48 PM
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Gt50-88
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Old Mar 7, 2012 | 05:30 PM
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well now after a bit more research im thinking of going with the budget garrett gt88 1.23 AR, T6. Its good to 1400hp and should easily cover the 850+ rwhp I want with alot of room to grow. Any thoughts on this turbo or anyone personally use it? I hear its alot smaller (in physical size) than the s488 too which is always good.
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Old Mar 7, 2012 | 06:43 PM
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Search gt4788 if that's the turbo ur talking about there are a few people with a 408 and that snail
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Old Mar 7, 2012 | 06:58 PM
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no thats not the same one, I think it may use the same comp housing but thats all
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Old Mar 7, 2012 | 07:12 PM
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I run a pt88 and it just works ..... With 408 it will spool real nice... 800 900 all day long...
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Old Mar 8, 2012 | 12:30 PM
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Originally Posted by rubbersdown
well now after a bit more research im thinking of going with the budget garrett gt88 1.23 AR, T6. Its good to 1400hp and should easily cover the 850+ rwhp I want with alot of room to grow. Any thoughts on this turbo or anyone personally use it? I hear its alot smaller (in physical size) than the s488 too which is always good.
Yes the GT88 and GT91 units are compact and spool very well as do the S400-HP88's. The GT47 is a bigger frame unit indeed. The GT91 would be the one better suited for that motor...850 rwhp and not break a sweat.
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Old Mar 8, 2012 | 01:54 PM
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thanks for the words of wisdom doc, I know you know your ish so the gt-91 it is. I only want 850rwhp or so for my street driving which will be 99% of what I do, but that one or two times a year I hit the track I want to be able to turn up the boost and make 1000+ rwhp. Im building the motor way overkill with all callies internals to easily handle 1500hp so it shouldnt be a problem. Ill be calling you guys and ordering the 91 when the time comes, hopefully in just a few weeks.
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Old Mar 8, 2012 | 02:47 PM
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Just out of pure curiosity doc, IF I change my mind and decided to go twins, what twins would you recommend?
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Old Sep 21, 2012 | 07:17 AM
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what did you decide? almost the same exact ballpark your in
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