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Old 07-14-2014, 07:42 PM   #1
Synack
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What turbo for 9:1 compression, GTX28/30?

Trying to decide which turbo to go with to get 400whp with 93 gas and meth BUT with 9:1 compression.
Let's not make this a discussion about why my compression is so low!

400whp on 93 is my ultimate goal, but of course I want the best possible dyno curve and response. I'm upgrading from a Precision that has some lag to it.
I do not plan on getting any more power out of it so I could care less about room for upgrading. I'm also trying to do this without E85.
All I know is that my turbo creates a lot of heat at 20psi and I'm trying to get something more efficient. So I want a GTX series turbo.

I've been doing a little research and the GTX2867R and GTX3071R seem like the better of the options. I've been told that the 3071R is the golden boy of the GTX30 series.
I'm just afraid that the 2867R won't be able to produce 400whp at 93octane/meth with 9:1 compression. And even if it did, would it be able to do it efficiently?

Thanks!
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