20michael

It dosent say anything about not allowing them so i'm going to try it. I have a 2011 5.3 799 heads

Sarg

iTrader: (6)

Even with the cast 76mm I am sure it would be fine. Not sure of the difference, but after seeing the comparison of the batmowheel vs the cast Borg Warner, it kinda has me doubting aftermarket billet wheels if there is no proof to back up the claims (compressor map, etc with back to back tests). I bet either one combined with a 92mm turbine wheel would be smoking.

20michael

They make a S400SX-76 ETT rated at 1100 with a 1.32ar and a 96mm turbine wheel for only 899

20michael

what year ls9 cam should I go with or is it a one year model

95bowtie

It's an ls9 cam and they only come in the new zr1 vette. You can basically search that vehicle on gm parts and just order a new cam for a vette.

95bowtie

Oh yeah and any turbo like the gt45, s475 are going to be pretty hard to package in the gto. Ask me how I know. I ended up going rear mount with mine.

You'll need to put it on the passenger side in order to get a properly sized dp down the fire wall.

Also doing that you'll need to delete the abs, traction control/cruise box.

LS1NOVA

iTrader: (12)

I agree with some of the others that the turbine size on the On3 is too small. It will make 600rwhp but Id spend a little more and get a 7675 from Precision or Turbonetics. The big BW turbos arent going to easily fit in your GTO engine bay.

95bowtie

not at all my friend not at all.......

Looking at f-body setups and seeing people stand the rad up and move it forward and delete all the unnecessary stuff under the hood makes me sick with all the space that is available.

In my free time I have been trying to figure how to fit a s475 size turbo under the gto's hood. Best I have came up with is move the condenser and rad forward and put the bottom at an angle to were it leans more towards the fron of the car. Then mount the turbo low in front of the balancer.

Only issue with that is there is nowhere to get the exhaust out the back of the car. It can go out the front bumper but I want no fumes and for it to be quiet again....

jridenour31

I may put an s400 up front. I'll be deleting AC, cruise, and ABS. There's plenty of room if you relocate/remove some stuff. There's tons of room for a big downpipe out the back on the passenger side if the header is ran up instead of down low.

LS1NOVA

iTrader: (12)

It can be done, just not as easy as a small frame unit.

Here is a friend that stuffed an S475.

20michael

Just picked up my ls9 cam for $116 from GM. Thinking about going with a S400SX-76 ETT rated at 1100 with a 1.32ar and a 96mm turbine wheel. Im new to turbos so im not sure if thats a good combo with the 96mm turbine wheel for a 5.3. Anyone have any info?

20michael

Also wondering if I need a different cam gear. I'm thinking of buying PAC 1.290 VALVE SPRINGS -OVATE BEEHIVE-Beehive LS1 Spring OD: 1.290" 130 lbs @ 1.800" 318 lbs @ 1.200" Lift: 0.600"

a4ls2goat

I have the eBay gt45 on my gto. On 17psi it went 135mph on a 4.8 with a ls9 cam and e85 4000lb race weight.
And I have mine in the driver side

95bowtie

Wow do you know where I can find more pics of this car?

Never seen one done like this actually. Had the same idea last week messing around trying to figure ways to mount a t6 frame turbo up front and just dont want to delete anything expecially a/c.

Looked at moving the rad and seems like the space is there just need to cut the core support up a little. That looks like a **** ton of room though that's for sure.

Blackbob

iTrader: (1)

For real a T6 ?

20michael

Do I need to change my cam gear when I put my turbo on my 5.3

pmgm

iTrader: (5)

Wow... That S475 looks good in there... Tight fit.

tiresmoke69

Only if you want to degree the cam to a specific cam timing. So no if you aren't worried about doing that.

20michael

The bolt pattern is the same though. 3 bolt pattern

20michael

ive been doing some research on my 2011 5.3 and came arcoss some problems with the DOD and AFM. Since you guys know a lot more about these motors than me I figured I wask for opinion.