FasTimeSS

iTrader: (47)

I am looking to do a build with a s488 turbo that I getting my hands on. I do not have it yet and I can't really find much info on the turbo. I know it has a race cover and a 1.32 a/r t-6 flange. I was looking to put that on my 410 CI 6.0 block. Can someone please give me some info on this turbo its going to be a street strip build and I will be mostly draging the car but will still see street time. Any info is much a appreciated just because I know nothing good or bad about this turbo. Thanks

Sales@Tick

iTrader: (3)

What kind of info are you looking for?

It's a great turbo and it will work just fine for you. I would like to a slightly bigger turbine for your cubic inches, but for a street strip build it will work fine. If you don't already have a cam, I would use one with 2-4 degrees overlap max and that has favorable opening/closing events to match specifically what you're trying to do with this build. The small amount of overlap will help with excess drive pressure and not over speeding the compressor.

WheelsUp84z

iTrader: (14)

Good for 1500ish hp. Click here and scroll to the bottom, s400 hp88 http://forcedinductions.com/productsborgwarner.htm

FasTimeSS

iTrader: (47)

Well I don't have the motor built yet. I already have a lq9 block bored .40 over and would like to just throw a piston in it for boost with a factory lq9 crank. I have a 4" stoke crank already also. I am thinking to have the motor built to a 371 for boost. My goal is 1000rwhp, I think that the 371 is going to be a better option for my build with this turbo. I don't have a cam yet either. I am thinking I am going to run stock 317 heads for now.

Reject

iTrader: (24)

370 for sure.

dudeman

iTrader: (43)

what size exhaust wheel is on this turbo?

MillsMotorvation

Im looking to forge my 370 also, was thinking of going with a 408! Good luck.

Sales@Tick

iTrader: (3)

96mm/88mm

dudeman

iTrader: (43)

i would think this turbo would be better suited on a 6.0 and something like the c.r.t hp8811 on a 400+inch motor.

turbocamaro125

iTrader: (3)

CRT hp8811....is that a old tv series exhaust wheel? Or an actual gt55?

Sales@Tick

iTrader: (3)

You're from the Midwest so I'm sure you're familiar with AutoMagic's car correct? With a GT88 he made 1050rwhp and it had a 92mm turbine wheel with a smaller AR housing with a 408. Now at 1050rwhp or so he did begin to not see the gains in power each psi of boost was giving him on lower boost levels. IMO his cam was also not optimal for a 408 with that turbine wheel and with the right cam it would of helped it a lot.

With a 96mm wheel and a 1.32 AR it would work, but I personally would use a S500SX88 or a GT50/GT55.

I've talked to the OP several times since he made this thread and he is most likely going with a stock stroke crank now anyways and sticking with 370 cubic inches.

Slowhawk

iTrader: (12)

Still don't get why people opt for the smaller cubes. I've always gone more cubes with great results. Less boost to make the power.

dudeman

iTrader: (43)

did some research on it, according to dr turbo it is the old tv wheel and the s400 hp88 would be better. i recently thought about getting one of the crt hp8811 turbos but now i am thinking otherwise.


i have seen it on here. didnt he make more power with the 347 vs the 408 on the same turbo?

FasTimeSS

iTrader: (47)

two different cars

dudeman

iTrader: (43)

https://ls1tech.com/forums/forced-in...w-gt-88-a.html

https://ls1tech.com/forums/forced-in...9rwtq-e85.html

maybe im looking at this wrong or some details i dont know.

JAX04

iTrader: (17)

Same car, different motors, the 347 they just "threw together" while the 408 was being built.

turbocamaro125

iTrader: (3)

Yea the 488 would be way better then the tv series. Thanks for the info

Sales@Tick

iTrader: (3)

The S488 wheel from what Jose has told me is better in design than the 93mm wheel Automagic's car has. He clearly made more torque with the larger motor at a lower rpm and didn't need to spin it nearly as high. The exducer and inducer is larger on this turbo than Automagics.

I'll take the 70rwtq and the lose of 29rwhp any day. The cam that was in the 408 IMO was much better suited for the 347 than the larger 4" stroke motor.

With the right cam in it to help combat back pressure it would of made a lot of power...like it didn't already lol. I guess it would be better said saying that it would of made even more. He's even asked me about doing a cam for that set-up that would be better suited for it as it runs out of steam around 6000rpm as it is right now from too much overlap flooding the exhaust housing with excess drive pressure.

I used to always like a smaller motor with turbo's, but I'm starting to see a different light with the larger motors in certain circumstances.

GueSS Who

Keep the CI as small as possible. Especially with a 6.0 motor. The pistons come out of the bore on the bottom side and rubs the skirts off the pistons when you have a stroker crank. Keep it simple with a stock crank, good rods, and good pistons. Get a good set of heads and turn the mother fer up all the way. Buy a good fuel system before you buy the turbo kit. With an auto any car is streetable. Should run mid 5s with a heavy car even

Dragframe

iTrader: (14)

S488... 408.. stock l92 heads... 13psi.. 7000foot da.

We went 9.53 at 13xmph 4th pass off the trailer with it popping, studdering, and nosed over on the big end (lean we found out.. it was a blow thru setup).

I think you'll find that turbo to work great. Sure there may be better options... but that's always the case