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Biggest turbo to work with CXracing hotside ?

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Old May 10, 2016 | 06:27 AM
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Default Biggest turbo to work with CXracing hotside ?

Looking for info on the largest turbo that will fit with the CXracing hotside.
I have a LS3 in a 4th gen and Im thinking of ordering that CXracing hotside, intercooler kit with a 80mm or T4 88mm turbo
The T76 would be too small for my 6.2 causing back pressure to be too high.
Any info would be great,
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Old May 10, 2016 | 01:30 PM
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I'm using the 88mm PT knock off from VS Racing and I am hoping to get it back under the car soon. I do have a feeling I will have to install a stand up radiator with pusher fans. nice clearance with the turbo installed, I'll try to post some pictures when I get home, but I posted pictures on my build thread if you want to check them out.
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Old May 10, 2016 | 01:33 PM
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https://ls1tech.com/forums/forced-in...questions.html

scroll down a bit, I posted pictures of the turbo mounted. I also cut off the flange for the Wastegate to put a V band so I could run a Tial Wastegate versus the one CX racing comes with.
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Old May 10, 2016 | 01:55 PM
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You should be worrying about the turbine side.....IMO any T4 turbo is going to create back pressure problems on an LS3. The CX Racing 88mm only has a 77mm turbine. Smaller than any Borg 400 series.

Jay
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Old May 10, 2016 | 06:44 PM
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You could possibly run a t4 borg
I dont have a cx kit, but i did go from a pt76 to an s400sx3 and it fit suprisingly well




Before with the precision




And after with the s400
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Old May 11, 2016 | 06:19 AM
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Originally Posted by jay_rich
You should be worrying about the turbine side.....IMO any T4 turbo is going to create back pressure problems on an LS3. The CX Racing 88mm only has a 77mm turbine. Smaller than any Borg 400 series.

Jay
It's a street car will not see any track time. 77mm is still much better then the old turbonetics t76 with a 68mm turbine. Ive see many t76 setups on LQ motors last forever. I'd prefer the turbine to be on the smaller side to help spool.
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Old May 11, 2016 | 09:02 AM
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there are a few cars running 600-800rwhp with this turbo on 4.8/5.3/6.0, I can't vouch for the LS3....but that should be plenty for the street and should spool nice and quick.

Also, I haven't measured as I bought this turbo for cost and with seeing good results out of it, I wanted to give it a try. Mine is the 88/83 so the turbine side should be at 83, although I have not personally taken the turbo apart to get a measurement.

Last edited by RoidedSS; May 11, 2016 at 09:41 AM.
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Old May 11, 2016 | 12:17 PM
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The new S369 will fit... and it flows like the big cast S475... or so they claim. I'd go with it. Can get them for $600 + the exh housing.

http://thmotorsports.com/i-2283235.a...FQYIaQodBEgC0g
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Old May 13, 2016 | 02:22 AM
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Originally Posted by Forcefed86
The new S369 will fit... and it flows like the big cast S475... or so they claim. I'd go with it. Can get them for $600 + the exh housing.

http://thmotorsports.com/i-2283235.a...FQYIaQodBEgC0g
I'm going to look into that turbo. I've always wanted a Borg but they are just to damn big.
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