Podium

Ive have a brand new A&A TI kit waiting for my c5z. I know it will make great power.

Here my issue. I watch youtube, read forums and it seems centri's A&A or ECS or procharger get their SH*t pushed in by all motor cars making less horsepower and by LSA's and Zr1s. Seems it takes 50 to 100 horse over of centri power to stay with or beat an LSA or H/C/I LS7. Centris also dont have the low end of the ls7 or LSA/zr1.

I know for a fact the LSA would be more fun on the street. Ls7 is out of the question as it would cost too much.

I could sell the A&A kit, buy a LSA kit and still have extra money. Yes I would cut my cowl. I would go to a ls3 in a year or two if I went LSA.

Kind of a let down when you see high horse centris get **** punched by lesser horse Zr1/lsa/ ls7s.

Thoguhts? Should I sell the TI and go LSA?

silver408z

Its all about the centri setup. They have to pullied aggressively. You see guys with base kits making 5-550 hp and 8psi losing and are lazy on the hit. If you are pullied for max blower speed it will come on hard and make boost. Most guys put it on a stock engine and don't pulley it correctly.

Podium

I was thinking about that and know that's an issue I though about why these centri guys are getting killed. If i keep the TI, I will start with the 3.6 pulley.

silver408z

LSA's are done around 7 to 750 hp and that is kind of max effort. Centri's have many options to make bigger power.

Podium

I don't know if I want to go more than that. It's my summer daily. I dont want to do a 15 inch conversion and get tires every summer just to hook.

silver408z

I don't know your engine but a stock ls1 wont make that kind of power on a lsa. I have a friend with a full everything on a ctsv heads and all made 745 through an auto. a ls1 is not going to do that with a lsa

ss4luck

You dont watch the right videos then. My car with a blower cam, meth and a V3Si has beaten FBO/blower C6Z, H/C/N20 C6Z, cam only ZR1... the list goes on. Centris are lazy if you dont spin them decently. The reason you see the LSA cars jump off the hit is the PD blower and its low end torque.

Here is a 35-130 roll with the blown C6Z, he jumped out about a car and in the top of 3rd i started to come around him.

Heres the H/C/N20 one. 50-120 i came out a car or so up top and didnt get to pull in 4th


Keep the A&A, get a nice blower cam, 3.6 pulley (or 3.4 if you wanna party), some meth, and let her eat!

Turpid porpoise

You could always sell the A&A kit and your LS1 and buy an LS7 or sell the A&A kit and go turbo or keep it and put a small pulley on it and use a wastegate on your charge pipe to limit peak boost while increasing low end response.

ysb02

I have both, a YSI c5 and a ctsv2.

The shop I use has been getting 800rwhp+ out of their full max effort ctsvs with the 1.9L. Cordes got 950ish rwhp out of a ctsv with heartbeat 2300 and 4l80e. The new 2650 TVS setups will probably make 1000+ rwhp on a built motor.

If you have a decent top end that t-trim should make 700+ rwhp easy. You won't have any issues with N/A guys but the 700+ rwhp positive displacement blowers will give you trouble. They have heat issues but if you keep those under control it's nasty setup making full boost off idle. Centris don't have near as many issues with heat.

Once you get 750-800+ you're looking at running a DR full time to put down the power though. Depending how you use the car that might not be a lot of fun.

Podium

It's a street car that will see 5k miles a summer. Go to the track once or twice a year.


I tho k I'll put it up for sale until I'm ready to put it in. Gotta finish the clutch, trans axle brace, brakes, clutch master, coil relocate and other things before i get to the supercharger . I'll set a firm price and if it sells it sells, if not I'll run it.

ysb02

That's basically what my c5z sees and I decided to go the ysi trim route over the s/t trim. I'm pulley'd up extremely high so it doesn't pop the ls6 before I can get a built motor in.

If you keep the t-trim you can easily add a n2o plate to a centri setup. A 100-125 shot on top of a 700 rwhp t-trim setup would be very stout and you'd probably only need the shot a few times a year.

Podium

I do my own tuning so if It makes too much on the dyno I'll detune it so the the motor doesnt pop. Regardless of what route I go, I'm building a motor next winter. If i stay centri, I'll forge the ls6. If i go lsa, I'll go ls3.

FourG63 97GST

pulley down, and wastegate the cold side, give it the powerband you want

Podium

It has a 3.6 pulley. If wastegate the cold side, how much lower of an rpm would boost kick in?

HardcoreABN

yea, you gotta spin then to get them to perform. pulley for max impeller speed and put a 'gate on it for boost control. watch it get nasty

one reason you see so many Corvettes with centris is because of how soft they can be off the hit - helps save the drivetrain.

ysb02

One thing about the LSA blower on the c5, there's a lot less room for a good heat exchanger on the vette platform compared to the ctsv/camaro.

NSFW

What does that mean? A blowoff valve between the blower and the throttle body?

How do you control it? Is a manual boost controller sufficient, or do you use something more sophisticated, like based on throttle and/or RPM?

I'm new to Corvettes, coming from Subaru, so I have a thing or two to learn about supercharger setup...

Thanks!

ss4luck

run like an external style wastegate with a spring for the desired boost. Pulley for 15 psi so the blower lights quickly and is responsive lower in the rpm, waste gate spring it to 8 psi for safety

NSFW

I see, thanks for the explanation.

Rkreigh

I'd be looking at a heartbeat magnusson if you have the $

it will provide plenty of low end torq and flow enough for 1k upstairs if needed

for the deal on the huron TT kit, I'd sure give that a look

much more potential, and it comes with a 3" exh

price out the "full monty" for 1k plus hp and you'll see it's a better approach if you have lofty goals

that said, I've run into a few bad caddy's in my old LSV ZR1 and they we obviously low 10 sec cars and pulled pretty durn good with a ported lsa blower

750 hp is still a bunch