89ROC-Z

iTrader: (11)

I've been in contact with some sponsors on here via email, but would like more opinions and more responses!

Car is a 3rd gen-specs in sig, LS3 heads/stock ls3 intake. 3.89's with a 26" tire and the car is used 95% on the street/road course. Spool is important to me but wouldn't care if it didn't come in till 3500 rpm. Do want it in at or before 4000. Limiter set at 7200 right now and I do have a 150 kit on the car currently but don't think I would spray on top of the boost Car won't be intercooled but ran on ethanol. My goal is 800-900 rwhp. Remember this is through a 2.66 gear corvette t56!

I was looking at a billet 11 blade 75mm ported compressor with a 96/1.32 turbine. With a custom cam from Martin at Tick I think it would spool within my guidelines. Thoughts?

I also have the option of an 83mm/1.10 turbine, but I think that might come up short on my hp goal. For $150 more I could get a 92mm turbine.

I will not spend more than $1200 on the turbo.

Thanks guys and gals!

dmaxvaz

iTrader: (1)

I would stay away from the 11 blade comp wheels. Better off getting a s480/1.32 exh from Jose at Forced Inductions

dans94z28

iTrader: (2)

X2 for the BW s480 at forced inductions

88mmrocket

that is a lot of gear and a short tire, combined with a manual.....

the issue is going to be in your guidelines of spooling it. a box stock s400-75mm with 96mm/1.32 housing will get you to the lower end of your wanted power. A box stock S480 will make more.

It it were me and I could afford it with your situation, I would call Jose and tell him you want a billet S476! it will get you there!

89ROC-Z

iTrader: (11)

Why should I stay away from the 11 blade wheel? Foose on here has his 4000lb truck running damn well with one, and there's a guy on here with a $650 s475 96/1.32 on his ls1/t56/4.11 set up if I remember right that makes over 800. I'm sure spool is not ideal with that set up though.

I think what I'm more or less asking is how would the 83mm/1.10 make my 800-900 goal? Come up short? I could get the 92 turbine, that should cut down on some spool time from the 96 a little. If the 83mm will allow enough flow for 800+ that's what I'll go with, should spool really well but don't want to fail at my goal!

I could get a billet s476r in 96/1.32 or 83/1.10 for $1250, and that's right at my budget of $1250. Anything more than that and I'll go twin tc66's.

A cast s480 $895 for 96 or 83, and $1195 for 87 or 92mm.

As you sponsors can see I'm ready to buy but also have a price point. Don't try and get me into something that's $1500...

Thanks!

89ROC-Z

iTrader: (11)

88mmrocket-i'm sure the 76 would no doubt! It's only $50 over my budget, so if Jose can convince me that it will get me my goal and have good spool I'll more than likely pull the trigger.

dans94z28

iTrader: (2)

I could be wrong because im still learning but being the 83 1.10 Is still a large housing and t6 it should still meet your power goals and spool earlier where the larger housing will come on more like a light switch. But again i could be wrong.

88mmrocket

yes it is a T6 housing but the problem is going to be that the 83mm turbine will is going to choke his motor. These turbos spool really fast even though their turbine housing "seem" large…if that makes any sense.

I have personally run the S400-75mm, S480, and currently have a S500-88 on my junk. One of our shop cars has a "Gansta" S476 cast wheel and the other has the NEW Gansta Billet S476. Let me tell you, that billet wheel is a bad bitch! It is currently on a 365" iron block motor.

If you can swing getting the billet wheel S476 then get it. I would call Jose and pick his brain. He will do you right!

89ROC-Z

iTrader: (11)

Does the extra 1mm on the comp really do that much in your experience? I can't swing the billet 92mm or 87mm, but the cast 87 or 92 I could do.

Rise of the Phoenix

iTrader: (27)

Good thread OP. I'm throwing around the idea of going turbo and have been looking at the BW units, but there are just so many to choose from and so many different options. Good luck with it all. Sounds like a pretty bad project.

72chevy2

iTrader: (1)

S476 or S480 92/1.10 T6 will work nicely on your application.

We have a 6 speed street car - 383 LS running that same turbo and it's an absolute monster on the street. Makes over 700 easily on pump gas and a little methanol.

Nice combination.

88mmrocket

I know that the billet 76 makes 100+hp more than the cast.

Put it this way, a guy just went 5.04@139.75 @2950. It is a 370" motor with trick flows on it. How much power does that equate to? I haven't looked it up but it is a lot! I want to say he was going high teens before.

Sales@Tick

iTrader: (3)

A 370 will spool a 96mm turbine wheel just fine.

That said, if it's a street car, I'd highly recommend the 92mm wheel and 1.25 housing.

I feel that is the best combo of exhaust wheel and housing for a street car with a 370.

With a good turbo cam and the 96mm wheel you'll have no trouble achieving full boost very quickly. Well under 4500rpm and with the 92mm/1.25 quite possibly 4000rpm.

mrstepheneades

I made 755 on a stock cam only ls1 with the s475 1.32a/r, 96mm turbine on 17psi. On 20psi now lol. Spool is ok, making like 5psi at 3400-3500 and full tilt at 4100. $650 dollar turbo from forced inductions. Numbers to come soon with gate pinned shut at Tick!

89ROC-Z

iTrader: (11)

This is exactly what I needed to hear! Someone with a very similar set up that is spooling a 96/1.32 by 4100. What rear gear you have? Even if you have 373's I think my added cubes will make up for my 389's.

I'm either going with the 11 blade billet s475 96/1.32 for ~$1k or $1150 for the 92mm, or the 7 blade billet s476r 96mm for ~$1250. So I have it down to three lol!

Which one would you do if you could do it over again stephen?

blackonblacksls

iTrader: (1)

I don't think there is any point in getting the billet wheel if you don't get the race cover too.


So that price point is going to be a bit off once you add that in

89ROC-Z

iTrader: (11)

Yes it's a standard cover but it is ported, that has to help some.

blackonblacksls

iTrader: (1)

But no point in spending extra money on the wheel to choke it with a stock cover.

Spend the money on the cover with a stock cast wheel if anything.

blackonblacksls

iTrader: (1)

From talking to the guys at FI and at Bullseye when I have bought my turbos.

The small and or basic covers are ussually the choke points. So putting the biggest or highest flowing cover should be priority.

blackonblacksls

iTrader: (1)

The race over was recommend to me even on the 74 75mm stuff when I bought bullseye.

And when Jose did a an 80mm t4 for me.

The best thing they had at the time was a full frame garret cover with an 80mm comp wheel and the gt47 turbine in a persicion housing.

Said even though the wheel was only an 80mm it was better than a lot of the 88mm stuff people stuff in a standard housing.