fastcars95

iTrader: (9)

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,

RoidedSS

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.

RoidedSS

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.

jay_rich

iTrader: (8)

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

mkvamso

iTrader: (2)

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

fastcars95

iTrader: (9)

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.

RoidedSS

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.

Forcefed86

iTrader: (4)

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

fastcars95

iTrader: (9)

I'm going to look into that turbo. I've always wanted a Borg but they are just to damn big.