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GSr turbo compression and head build help

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Old 03-14-2011, 10:09 PM
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I am getting my jdm gsr engine built next week and i was wondering if it would be better to rebuild with stock 10 to 1 ratio and sleeve block or rebuild with 9 to 1 ratio and sleeve block? Which would be cheaper? Im looking to make 300+hp

And what would be the best head build for a turbo gsr? (For running around 300+hp)

Last edited by Former User; 03-15-2011 at 04:52 PM. Reason: Coherency
Old 03-14-2011, 11:08 PM
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Default Re: GSr turbo compression help

You should probably lower compression if your going for that much. Depends on what kind of turbo you plan on running.
Old 03-14-2011, 11:08 PM
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Default Re: GSr turbo compression help

For your goals, leave it alone. Just get a good tune.

The cheapest would be to leave it alone. Building it would give you more room in the future if you ever want to go with higher HP.

Personaly, I would just leave it. Unless you can afford it, and might want to go with higher HP in the future.

But you can always build it when you want more.
Old 03-15-2011, 09:14 AM
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Default Re: GSr turbo compression help

Originally Posted by 98civdx
For your goals, leave it alone. Just get a good tune.

The cheapest would be to leave it alone. Building it would give you more room in the future if you ever want to go with higher HP.

Personaly, I would just leave it. Unless you can afford it, and might want to go with higher HP in the future.

But you can always build it when you want more.
How much horsepwer can my gsr handle stock?
Old 03-15-2011, 09:28 AM
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Default Re: GSr turbo compression help

I made 326 on 9psi on my gsr.
Old 03-15-2011, 09:30 AM
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Default Re: GSr turbo compression help

Originally Posted by Nbboy7
I made 326 on 9psi on my gsr.
What turbo are you using? 326 sounds hihg for only 9psi. If you are sleeving it, there are some guys who have made some serious power with some high compression turbo builds. Do some research on that.
Old 03-15-2011, 09:38 AM
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Default Re: GSr turbo compression help

I'm running a garrett t3/04e 57 trim 63 A/r
Old 03-15-2011, 09:52 AM
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Default Re: GSr turbo compression help

Originally Posted by Nbboy7
I made 326 on 9psi on my gsr.
Is your block and head stock?
Old 03-15-2011, 11:16 AM
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Default Re: GSr turbo compression help

You should have no issue making 300 on a stock GSR WITH a good tune.

Stock sleeves should be okay in 500 range. Pistons rods, I don't really know.

This also really depends on how healthy the motor is to begin with.
Old 03-15-2011, 11:19 AM
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Default Re: GSr turbo compression help

So if i switch to aftermarket pistons, i will not have to sleeve my block? I don't plan on going over 450hp
Old 03-15-2011, 11:22 AM
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Default Re: GSr turbo compression help

Nope.
Old 03-15-2011, 11:28 AM
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Default Re: GSr turbo compression help

A guy in my area has a bone stock JDM ITR making 440whp on like 18psi w/ a 60 trim. I made 340whp on 14psi w/ a 54 trim w/ my bone stock GSR block and B16 head. No need to sleeve unless your looking to go 500+. Its all in the tune...and some luck. Piston/rod upgrades would be an added insurance but is not necessarily needed.
Old 03-15-2011, 12:28 PM
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Default

Thread copied to the Forced Induction forum.

Related threads merged.

Last edited by Former User; 03-15-2011 at 04:55 PM. Reason: Clean up
Old 03-15-2011, 01:00 PM
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Default Re: GSr turbo compression help

OP: You're all over the place.

If your goals right now don't exceed 350whp then you have no need to consider building the engine. A good headgasket + a good tune will be all you need.
Old 03-15-2011, 01:09 PM
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Default Re: Gsr turbo head build help

Nothing. As I understand it B-series are capable of making 300hp on a stock block boosted. Also you might want to go the Forced Induction forums and look up the 300 horsepower B-series builds.
Old 03-15-2011, 01:11 PM
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Default Re: GSr turbo compression help

what type of head gasket would you recommended?
Old 03-15-2011, 01:13 PM
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Default Re: GSr turbo compression help

OEM. You haven't done any research on this at all.
Old 03-15-2011, 01:24 PM
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Default Re: GSr turbo compression help

Originally Posted by grumblemarc
OEM. You haven't done any research on this at all.
Not too much but thanks for the advise
Old 03-15-2011, 04:49 PM
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Default Re: GSr turbo compression and head build help

So would i be wasting my money if i were gonna build my engine only aiming for 350+hp?
Old 03-15-2011, 04:58 PM
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Default Re: GSr turbo compression and head build help

That's your call whether you feel the money would be wasted. As it stands it is not necessary.
Old 03-15-2011, 05:15 PM
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Default Re: GSr turbo compression and head build help

do you think it is necessary to change valves and springs?
Old 03-15-2011, 05:17 PM
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Default Re: GSr turbo compression and head build help

What part of stock is it that you don't understand?
Old 03-15-2011, 05:20 PM
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Default Re: GSr turbo compression and head build help

Old 03-15-2011, 05:27 PM
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Default Re: GSr turbo compression and head build help

so if my engine goes , i can talk to you right lol
Old 03-15-2011, 05:30 PM
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Default Re: GSr turbo compression and head build help

If it goes blame yourself for not doing proper research and relying on strangers in a forum to tell you what to do.

The reason you're scared is because you haven't read up on anything on your own. I read for nearly a year before I bought my first turbo part and then took another 8 months to piece it together. 2 years later I still have no issues with it. Educate yourself and stop depending on hearsay.


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