Moving the turbo to the front... which twins?
12-09-2009, 05:19 PM
#1
Moving the turbo to the front... which twins? Well I've done tons of research on this and I've yet to make a decision. I've been running my GTO for 4 years now with an STS setup. I've got a TC76 on it now and have gone a best of 10.4 in my 4100+lb pig. Well now I'm looking to switch it up a bit for next season.
I've got an assortment of 3" and 2.5" mandrel bends. I've got C6 manifolds and truck manifolds and my stock GTO manifolds at my disposal. My first thought was to just move the TC76 to the front using whichever manifolds fit best. Make the crossover, biggest downpipe I can fit, wastegate routing. Done. Kind of difficult but not impossible.
Well now I've been debating twins. If I could utilize internal wastegates, it would make the pipe routing MUCH easier. No crossover, no wastegate dumps, 2.5" downpipes down each side, done. Problem is I can't seem to find any twins that I think would work well within my space and $$ constraints. I want them to be capable of at LEAST what the TC76 is as far as power goes. I also want to use the internal gates or else it defeats most of the point of me using twins. I also don't want to spend more than like $1300 for the turbos combined.
Any thoughts? Nothing seems to fit my requirements. If I can't come up with anything I'll just end up doing the single up front.
I've got an assortment of 3" and 2.5" mandrel bends. I've got C6 manifolds and truck manifolds and my stock GTO manifolds at my disposal. My first thought was to just move the TC76 to the front using whichever manifolds fit best. Make the crossover, biggest downpipe I can fit, wastegate routing. Done. Kind of difficult but not impossible.
Well now I've been debating twins. If I could utilize internal wastegates, it would make the pipe routing MUCH easier. No crossover, no wastegate dumps, 2.5" downpipes down each side, done. Problem is I can't seem to find any twins that I think would work well within my space and $$ constraints. I want them to be capable of at LEAST what the TC76 is as far as power goes. I also want to use the internal gates or else it defeats most of the point of me using twins. I also don't want to spend more than like $1300 for the turbos combined.
Any thoughts? Nothing seems to fit my requirements. If I can't come up with anything I'll just end up doing the single up front.
12-11-2009, 08:26 AM
#4
Launching!
Join Date: Jun 2008
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$1300 is cutting it too cheap for buying twins. Even the starter journal bearing turbos like a Garrett T3/T4 stuff is around 650-700$. A Garrett T04E which is a 57 trim Compressor, T4 Turbine Housing w/ 3" V band runs about $725 from ATPturbo.com. Using twins of that should net you close to 850hp or so. Anything bigger and your gonna be looking into more money.
12-11-2009, 05:13 PM
#5
I could do twin Garrett T60s which will do ~1100rwhp and be under my $$$ constraints but I want 2.5" dps, not 3", and internal gates or else I'll just do a single. Master Power has some pieces that would work well (If I can trust them to hold up) as does Borg Warner. I'm still investigating....
