Turbo selection

87-TURBO-T

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Joined
Apr 16, 2009
Currently putting together a 261 inch stage 2 engine. What would be a good max effort budget turbo? Found a good deal on a Garrett gt4788.
 
The pt-7275 is great and not too crazy on the price like there other stuff.
 
i believe the 7675 is any excellent turbo for your needs, spools very quick so street manners are good.. The turbo will run into 8's no problem.
 
same goals as you. almost done with the refresh on my TA motor. got the G42-1200
 
same goals as you. almost done with the refresh on my TA motor. got the G42-1200

It’s a monster and the map is nice for a v6 around 250ci that will be 6500-7500.


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It’s a monster and the map is nice for a v6 around 250ci that will be 6500-7500.


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Right on. I'll be at 270ci should still be nice.

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If you can get 1000whp on a 75 turbine you’re doing really good. It will be a back pressure engine


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You can still make power with backpressure. It would have to be better than my 70 3 bolt turbine at 1000rwhp.
 
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You can still make power with backpressure. It would have to be better than my 70 3 bolt turbine at 1000rwhp.

Yes you can but you can make a lot more without it. You might add 600 rpm and make 1200whp with more turbo


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