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best turbo upgrade direct bolt on 450 hp goal

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Old Jan 6, 2016, 10:42 AM
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best turbo upgrade direct bolt on 450 hp goal

hi guys i know this question has been asked before but i just dont want to go wrong with the upgrade and i see people are recomending the mhi japanese turbo and others have garrets gt i personally like the garrett there is gtx series but i called full racing shop and they told me that the gtx series need a diferent manifold to make it fit so im kinda confused but dont wanna go wrong. let me know what you guy would do my goal is 450-500 hp�� sorry about my spelling
Old Jan 6, 2016, 11:05 AM
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A MHI 18k on E85 will get you to your goal.
Old Jan 6, 2016, 11:12 AM
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Originally Posted by e_kobz
A MHI 18k on E85 will get you to your goal.
agree, but i only have access to 91 oct pump sucks!
Old Jan 6, 2016, 11:18 AM
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The 18k will do about 400 on 91. It will also have much better response than the bolt-on GTX turbos, while not giving up that much power.


The shop you contacted must not know about the bolt on stuff Garrett offers for the X. Regardless, go with the 18k. If you want to approach 500 on pump gas with a X, you need a T3 setup, and a good turbo for that would be a Xona Rotor 78-64 or 71-64.
Old Jan 6, 2016, 09:48 PM
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Originally Posted by letsgetthisdone
The 18k will do about 400 on 91. It will also have much better response than the bolt-on GTX turbos, while not giving up that much power.


The shop you contacted must not know about the bolt on stuff Garrett offers for the X. Regardless, go with the 18k. If you want to approach 500 on pump gas with a X, you need a T3 setup, and a good turbo for that would be a Xona Rotor 78-64 or 71-64.
guess they didnt , but i check out the xona rotor turbos you said ,they are pretty big it looks like they have quite a lag so what the heck i think ill get the gt30 71 and not even the gtx series because ive been told it has a bit more lag then the gt series but checked out the mhi turbo its atractive but it will only give me 50hp more than what i have know snd i think its no worth it,thanks for the info it was very helpful aprecite it man��

Last edited by s240; Jan 6, 2016 at 09:59 PM.
Old Jan 7, 2016, 04:18 AM
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You could also send in your turbo to FP and they'll build you a JB FP Red. Should get you to your goals.
Old Jan 7, 2016, 10:40 AM
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Originally Posted by letsgetthisdone
The 18k will do about 400 on 91. It will also have much better response than the bolt-on GTX turbos, while not giving up that much power.


The shop you contacted must not know about the bolt on stuff Garrett offers for the X. Regardless, go with the 18k. If you want to approach 500 on pump gas with a X, you need a T3 setup, and a good turbo for that would be a Xona Rotor 78-64 or 71-64.
you will be hard pushed to crack 400 on the MHI on 91. A set of cams would grantee that situation.

The MHI while a good little turbo it is not that big. 54 lbs/min turbo.
Old Jan 7, 2016, 11:06 AM
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430 on 92 octane. It'll do 400 on 91 with a good tuner like the guys at English Racing.


https://www.evolutionm.net/forums/ev...sh-racing.html
Old Jan 7, 2016, 11:26 AM
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Originally Posted by letsgetthisdone
430 on 92 octane. It'll do 400 on 91 with a good tuner like the guys at English Racing.


https://www.evolutionm.net/forums/ev...sh-racing.html
Hrmmmm that is defently one of the highest pump gas mhi dyno's I have ever seen.

Fair enough......though still feel a bit skeptical from all the other dyno I have seen.
Old Jan 7, 2016, 11:27 AM
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Originally Posted by s240
let me know what you guy would do my goal is 450-500 hp��
I think 450-500 on pump, is Blouch 3.0XTR territory http://www.bptstore.com/Evolution-X-...TR-_p_146.html
Old Jan 7, 2016, 01:29 PM
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OP, don't get caught up in someone else's dyno numbers. As posted above, sure an MHI 18k may make 400whp on 91 on a high reading dyno under great conditions, but unless you're using that dyno, don't expect those numbers.

The 18k is a fine turbo, but it's not going to hit 400whp on 91 octane on many dynos.

Instead of chasing numbers, find a good tuner with experience in our platform and talk to them about it. There's a lot more to it than whp.
Old Jan 7, 2016, 01:31 PM
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If it was a random shop, I would say to be weary of dyno numbers, but its English racing, and they don't have a high reading dyno.
Old Jan 7, 2016, 01:36 PM
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Contact Owen Developments, than can recommend a turbo for your needs http://www.owendevelopments.co.uk/pr...Upgrade_Turbo/
Old Jan 7, 2016, 10:53 PM
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everyone recommend the 18k for me. I went GTX3071R its direct bolt on. I will upgrade inner cooling piping and fuel pump and will dyno. Will post results
Old Jan 8, 2016, 06:25 AM
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Originally Posted by JrEvoXnitez
everyone recommend the 18k for me. I went GTX3071R its direct bolt on. I will upgrade inner cooling piping and fuel pump and will dyno. Will post results
You made the better choice in my opion. The 3071 has a bit more umph to it while offering very similiar spool.

Only downside is the cost but if you can stomach the extra coin it is a better option then the MHI imo.


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