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Is Big Brand Name Turbos A Must

MJTru

By MJTru,
in Engines & Forced Induction

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MJTru Mentor

MJTru

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Posted (edited)

Hi guys i have two turbos and without getting in to much detail here i would like to know which turbo you guys think would be a better choice for drag, but as well as driving on the streets. As you all may know i drag race but love to drive on the streets as well. I really looking for 800hp to the wheels as well as being a good street car. My past projects were as big a turbo on a rb25 build wit small head work, using a gt42r. Now im running a rb26 in all skyline 4wd chassis. But im lost to what turbo to use. So i have opped to place the two turbos up agaist eachother to see what you guys would recommend. Hense using practical recommendations based on actual results. I have looked on line and seems like post that im finding is post that are old and favor the hks turbo just based on the time vs. What was avalible. As we all know the hks t51r spl or kai version never had a gtx as a competition.

So in saying that here is the underdog. A gtx35r BB with A twin scroll 1.06 ar rear housing vs a HKS t51t KIA journal bearing.

I personally love the look and size of the hks unit. But i also realize after alot.of reading its old.

Please look at the attcahed photo and tell me what you guys would recommend me going with.

Thanks a million. Planning on ordering a 6 boost manifold soon.

Im confused. ???? Hks is a v band hot side in and outlets

post-37293-14465975553331_thumb.jpg

post-37293-14465975973374_thumb.jpg

Edited by MJTru
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MJTru Mentor

MJTru

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Ok thats a good comparison. Power wise. So the gtx wouldn't work for 800hp. I was guessing that much. Damn. Thats a 100kw difference. I was looking also at the gtw series turbos from Garrett. 3882r is good for about 950 hp

What you guys think about that. In short whats one of.the best responsive turbo for that power level or is my goals to high. ?

I feel a gt42r is way to big for a 2.6 displacement.

Edited by MJTru
MJTru Mentor

MJTru

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Damn. So i should drop my goals to 600hp 450kw. And i would say from your response that anything more would be leaning on the preference of drag racing only. I want a fun car and a good car that would go down the drag stip. Not by no means a drag only car. You guys have me thinking. I would need a twin scroll dual 38mm gate manifold from kyle.

One last qiestion is the 1.06 ar housing a good choice and how would it compare to a smaller one for power.

I guessing the biggger rear housing will have a better top end but less responsive.

MJTru Mentor

MJTru

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Posted (edited)

I had a pt turbo. From ams

In my old rb25. Worked good.

The gt35r is mine the hks is a friend for a 2jz. I was comparing power levels and turbos. I picked this gtx35r rear housing and all for 1600 usd and couldn't let it pass. So i wouldnt really want to fork out some more cash for a PT turbo. They are hybrids of Garrett turbos. Like hks. And so on. What are you getting at tho mate. Whats your thoughts.

Edited by MJTru
TiTAN Grand Master

TiTAN

Posted
Posted

Ok thats a good comparison. Power wise. So the gtx wouldn't work for 800hp. I was guessing that much. Damn. Thats a 100kw difference. I was looking also at the gtw series turbos from Garrett. 3882r is good for about 950 hp

What you guys think about that. In short whats one of.the best responsive turbo for that power level or is my goals to high. ?

I feel a gt42r is way to big for a 2.6 displacement.

power goal is too high if you want anything responsive, but that depends what you feel is responsive

a t51r kai on a 3L doesnt wake up until 5000ish

a gt35 on a 3L (with 0.82 rear) wakes up at 3750ish

i have only had experience with the 3L and those size turbos, obviously you arent going to get going until later still on a 2.6

MJTru Mentor

MJTru

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Posted

Thanks mate. On my rb25 wit a gt35 it was about 4500 so your right. Thats was with a stock head does motor combo make a difference. Cause this motor is fully built cams and all valve train as well. No replacement for displacement is what comes to mind. Lol. Rb30 block are like finding gold here. Damn. Insted of spending more money ill go with this gtx35. Will be laggy wit 1.06 ar rear housing.

TiTAN Grand Master

TiTAN

Posted
Posted

with the split pulse rear housing it will be about half way between a 0.82 and a 1.06 non split in terms of when it comes on, you can always go to a smaller rear housing later if its no good for you, its a bolt off/on job if they are both split pulse.

MJTru Mentor

MJTru

Posted
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Posted

I'd just stick the GTX35R on and wind the boost up. 500-600hp at the tyres is plenty for a street car that'll run 10s.

Are you planning on running E85?

I have the fuel setup to run E85. BUT for the moment just 98 ron or some days race gas on the drag strip. Yeah deep down i have to learn to be content 600 should be a fun car as well i cant see it being that laggy. On my r33 gtr all stock i have the same turbo but .83 ar t3 twin scroll 6 boost manifold and i would say its max boost at 4400 but thats a fully stocked car.

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