BoostinJonnyukon

So I've been recommended this combo for my 5.3 build in my Yukon.
Turbo BORG WARNER S366 S300SX3 S300 66/73 17728
Cam 212/218 .553/.553 113+2 lil john stage 2 truck cam
On unmilled 243/799's
Gen4 truck intake 92mm tb
80 deka injectors
340l pump
Pistons r lil johns 5.3 boost flat top wiesco pistons
Rods Callie's compstar h beam rods
Stock crank.
Trick turbo's 88-98 turbo log and down pipe.
Not sure on a2a cooler yet.
I'm looking for 500bhp and maybe Alil growing room I guess
I want to be able to tow a decent 5k trailer so the wife I can travel
And be reliable rain snow and scorching sun and live 100k.
Are there any other weak points in the gen3 motor besides the piston n rods?
Melling high volume pump of course.

FFDP

iTrader: (2)

I don't see why that wouldn't work for your power goals.

BoostinJonnyukon

Should a stock crank live or should I really think about a crank and don't be afraid to turn it up Alil? Lol

03sierraslt

iTrader: (22)

Stock crank should be just fine. Just make sure it's balanced for the new rods and pistons.

BoostinJonnyukon

Yup clean up checked n balanced.

1CAMWNDR

iTrader: (21)

That will be just fine for that goal.

BoostinJonnyukon

Thanks guys! what boost pressures do you think I'll see? I will be lucky to find true 93 around me but mainly 91 octane is 3 mins from my place.

kbracing96

iTrader: (26)

I've got a s366 on a 5.3 in my 69 c10. It's a great little turbo on that motor. Spool is so quick, makes for a very fun truck! Currently running about 9lbs on it.

BoostinJonnyukon

Nice what's done to the motor and any dyno time?

fastjweb

iTrader: (2)

I have one on a 4.8 at 16-17lbs and doesn't seem to be falling off yet. probably around 630-640 rwhp. just ran 10.84 and best trap of 124.69 at 4200lbs, 13.5 degree of timing and 10.2 afr. 93 pump, and single nozzle 50/50 meth. I will also add that's with trick stg 2 kit with standard 3" intercooler and 3" intercooler pipes.