607motorsports

iTrader: (6)

Is anyone running a COMP CT43 turbo on here? If so how do you like it and what kind of HP and boost numbers are you putting down on which motor?

I'm in the process of trying to plan for a 1000+whp build and am looking for a turbo that will do it for me but really do not want a ridiculous amount of lag or a dyno queen kind of turbo that will net me the number but not really perform up to par on the street. this car is almost 100% a street car.

I am looking to keep my budget somewhere in the +/- $1200 range, I'm flexible on that some for the right turbo but just curious if you guys thing the COMP will make 1000+. Particularly the billet 78mm wheel, 79mm turbine, 4" outlet, and the 1.15 or 1.32a/r housing.

Motor will either be a forged LS6 block or a forged 6.0. Just looking for advice, insight, and any other options you guys might have.

Thanks ahead

SPRAYED 01

iTrader: (22)

That's going to be very hard to do with that turbo.

I run a ct43 ct 5 hybrid. Its a 43 comp cover with a billet 88mm comp wheel. The turbine is a ct5 88/94mm with a 4 inch dp.

900whp at 20psi and 18 degrees tming. 9.5:1 forged 370 with ported 241 heads 232/236 cam though a 9 inch and locked auto.

607motorsports

iTrader: (6)

I'm entirely open to turbo suggestions/recommendations. I know an s480 would get me the numbers im looking for but I've experienced an s480 on a 5.3 and it seemed incredibly laggy to me especially on the street.

lysergic

i have a CT43 74/79 billet on a cammed but otherwise stock 6L in my 300zx

it has no lag but we are really only just waking it up at 14psi. havent been able to get more than 9 - 10 degrees of timing in it due to poor fuel and it wanting to ping. made 525rwhp on dyno dynamics through a 4000 stall th400. it is utterly crazy in terms of torque by how it drives. i cant imagine what it would be like with e85 and 15 - 17 degrees of timing.

here is a little video trying to launch on the street with MT ET Street radials

lysergic

excuse the really bizarre wobbly effect on the video i dunno what youtube did to it.

01transampower

iTrader: (9)

I purchased a CT43 for my car and since I bought it two months ago my motor plans have changed to a 408 with some stage 3 6.0l heads from PRC and must I say the turbo is a beautiful piece. Very well made. Right now though I either need to sell it or exchange it for a Comp hybrid because it won't make 1000+ on the 408. I would recommend one for someone to buy.

rotary1307cc

iTrader: (5)

Their 100trim 79mm turbine doesn't belong anywhere near a v8

01transampower

iTrader: (9)

The CT43 from what I'm told would get me around 800 wheel horse on a 383 but after that the turbo would be at its max because of the small exhaust wheel. If you do a 5.3 I'm sure you'd see more then that. Smaller cubic inch means more boost and power because the turbo will be more efficient on that motor. Now if you want a 6.0l I would look into a hybrid or a pt8847 or even a Borg warner if you have the room.

SPRAYED 01

iTrader: (22)

Amen to that rotary, learned the hard way.

rotary1307cc

iTrader: (5)

you are the one person to really know, all should listen to what you have to say

607motorsports

iTrader: (6)

What are you guys running a 347 seeing as far as spool on a s476 or s480? I have room to run one if I stand my radiator up I'm just worried about the spool being too laggy for me since I'm used to an instant spool from my 7875.

01transampower

iTrader: (9)

Depending on what A/R you pick for the turbo will affect some of your spool time. The smaller the A/R depending on the motor the faster the spool, however you will then be loosing some top end. You gotta try and find the balance. And realistically you can always change the hot side if you don't like the way it spools, I know its extra cash to do that but many guys here in Colorado like to switch theirs out depending out what they are doing with the car. Drag racing, auto cross, road course, street racing and so on.

notenoughmoney

iTrader: (1)

I have the ct43 7879 on my 6.0l, as im finding out now, not the exactly the right one for my setup.

T76s10

iTrader: (6)

How about a pair of s366's. Fast spool and big power

westtexasbuff

iTrader: (40)

I ran two CT43 6767s on my last build. Nice pieces.

slowride

iTrader: (3)

Not the first time I have heard that. Can you elaborate on it some?

Ryans99ls1

iTrader: (16)

Run a BW Billet S476R. itll take a 346 to 1000hp and not take forever to spool, step the hotside down to 2.25" and you will have a hell of a fun car. S480 if you plan on going further.

chevellepowered

iTrader: (37)

comp 7879 3" dp .96
16lbs
stock 5.3 , ls3 cam ,
stock th400 & converter spools pretty quick , but ill end up putting built trans and 2500 stall,..
643rwhp
4.11 gears < i know i know, wrong gears ..
im swapping out to a ly6 , with turbo cam , should spool wicked fast and im shooting for 800rwhp ..
im thinking its gonna max out right before the 800rwhp mark .. But thats fine with me, spool wicked fast on the street and be a blast to drive ,, I absolutely do not like lagggggggg ..
The other turbo im considering is the s480 , with 93 turbine ... But if im only wanting 800 wheel , and my littler turbo can get me there , possibly, then ill be sticking with the comp ..

spoolin turbo

I would say the 79mm on larger displacements is only good for 750 - maybe 800 if Martin@Tick pairs you with a kick *** cam...lol

I ran the 79 turbine and then upgraded to the race turbine (larger turbine inducer/exducer). I had the EXACT same spool but made 80-90rwhp more. This was on a smaller 74mm turbo.
I might still have the dyno overlays.


On another note, what do you guys think about this information in regards to their straight vs contoured wheel comment. Saying their straight design is better.

http://compturbo.com/technology (more info here)

The Comp Turbo turbine wheels are a unique design in that they have vanes that are constant in outside diameter from inlet to exit. This design feature maximizes the flow capacity of a given size wheel and allows the use of reasonably small turbine wheels on large-size engines. One of the largest losses in small turbine wheel design is the leaving gas velocity, which is unrecoverable energy and is dissipated in the atmosphere when the exhaust gas leaves the turbine casing. The Comp Turbo full-bladed turbine wheels have minimal leaving velocity due to the large exit area, thus their leaving losses are minimized, leading to higher turbine efficiency and greater flow range than contoured turbine wheels. Conventional twin flow and undivided turbine casings are available to match different engine exhaust manifold systems.

notenoughmoney

iTrader: (1)

I would like to possibly get a new cam, I have tried to get in touch with tick performance. Anyone know what the story is ??