427 turbo selection
427 turbo selection I have a 427 dart ls shp 10 to 1 with brodix sts br7 by frankiestien. car had a 408 and a single s484 billit wheel and race cover. I think this turbo is going to be a little small.I am on the fence to either step up to a gt55 or go twins.Not much price difference in the 2 set ups. Upgrade the turbo is right at 3k and i would like to stay at 1k per turbo on the twins. Car is street driven 95% of the time.Looking to make 1000 rwhp to 1300 rwhp some were in that range. No et goals. Car is 1970 nova about 3600# jakes lvl4 th400 3:25 moser fab 9 inch. pump gas with meth but can switch to e85 to meet my goals. Car is controlled with holley dominator. I was looking at the sxe 369 turbos? I would like them to be small and meet my goals.Car is going to be a fun fast weekend car will hit lsfest or drag week this yr and a street car take over event.What turbos are easier to package? Nova dont have a whole lot of room. Thanks
We are actually building a nova with twins and you aren't kidding about space. Giant single would be nice on there as with a 427 you are going to want at least a 94 to really utilize the turbo (if max effort anyways) but as for twins the precision 76s are badass little turbos fit very nicely up in front we were messing with the Borg/bullseye turbos for the car just the s400 frame is to large without really cutting up the car. But Scott and I had 427 Darts he made major HP with the 88 and that seems to be in your goal. I ran a 76mm with the motor and it did pretty well just way to large for a turbo in the 76-84 range from the data I saw. If twins are in the budget I say go for it if not the 88mm+ Is going to well exceed your goals
My vote is the GT55 but if you go twins I'd spend the money on some 66/67 precisions. My buddies 427 9.5:1 made 1097 on 9lbs with them. Those are some small turbos and light up instantly.
66/67 on a 427? Is there build thread? What was the turbo set up?Everything i have seen say nothing less the twin 72? My car isnt a max effort ar just a fun street car and few track events.Whats the comparisons between turbonetics t72 precision 66/67 and precision 76.If i do a single i want it to start boost 3500 to 4 and carry to 7k.Would a gt55-94 do that or would the 91or88 work better.Also have seen promod 88,91,94 turbos would any of these work?Like i said price for single vrs twin is vary similar if i can get the twins for under 1300 a peice. I all ready have dual wastegates on my single set up.I just like the idea of 2 smaller turbos vrs a monster with a 5 inch down pipe.Turbonetics turbos look like they come in a small package?
Originally Posted by 00duvall
66/67 on a 427? Is there build thread? What was the turbo set up?Everything i have seen say nothing less the twin 72? My car isnt a max effort ar just a fun street car and few track events.Whats the comparisons between turbonetics t72 precision 66/67 and precision 76.If i do a single i want it to start boost 3500 to 4 and carry to 7k.Would a gt55-94 do that or would the 91or88 work better.Also have seen promod 88,91,94 turbos would any of these work?Like i said price for single vrs twin is vary similar if i can get the twins for under 1300 a peice. I all ready have dual wastegates on my single set up.I just like the idea of 2 smaller turbos vrs a monster with a 5 inch down pipe.Turbonetics turbos look like they come in a small package?
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I don't have good numbers yet on mine, but I went with 6766 for starters on my new 427. I do question the exhaust side as a potential bottle neck. As Vince mentioned for packaging, the Precisions are much easier to package. I originally started with BW S366's on the car, and it was tough. I could send some emails with pics if you'd like.
I had the 7275's on my other 427 in a different car, and they lit off before 3500 and was an animal on the street at 10lbs. Point being, probably not an issue if you step into this size, or the 76's
What rockers did you end up with on your heads?
Corey
I had the 7275's on my other 427 in a different car, and they lit off before 3500 and was an animal on the street at 10lbs. Point being, probably not an issue if you step into this size, or the 76's
What rockers did you end up with on your heads?
Corey
Sent u a with email address. Were those percision 72/75? Would i need to get the billit wheel with them or just plan jane 76.was trying find pics of the percision 76 vrs tn 72,75 or 76 turbo.
Originally Posted by GotBoostRacing
I don't have good numbers yet on mine, but I went with 6766 for starters on my new 427. I do question the exhaust side as a potential bottle neck. As Vince mentioned for packaging, the Precisions are much easier to package. I originally started with BW S366's on the car, and it was tough. I could send some emails with pics if you'd like.
I had the 7275's on my other 427 in a different car, and they lit off before 3500 and was an animal on the street at 10lbs. Point being, probably not an issue if you step into this size, or the 76's
What rockers did you end up with on your heads?
Corey
I had the 7275's on my other 427 in a different car, and they lit off before 3500 and was an animal on the street at 10lbs. Point being, probably not an issue if you step into this size, or the 76's
What rockers did you end up with on your heads?
Corey
