mrstepheneades

With the turbine being as small as it is im sure it will be a screamer on the street. Coming into boost fast. The turbo is rated to 820hp on forced inductions site. Maxed out I would guess it would push the 4.8 to mid 600s maybe hit 700. Im interested to see when boost will come in.

Camaro9969

iTrader: (12)

Hey man you gotta get that wastegate angle in there or you wont be able to control boost at all.

stevieturbo

I wouldnt be so worried about the wastegate...

I'd be more concerned with the fact your bolting the turbo direct to the chassis...which is connected solidly to the exhaust, which is solid to the engine.

Even if the engine is then bolted solid to the chassis, there is going to be a lot of expansion and contraction in those pipes. Something is going to fatigue and let go. If you have any sort of flexible engine mounts at all, then something will break very very soon.

mrstepheneades

My car is directly on the side like this and it will hold dead on what I set it. Unless you get over 14 or so psi then it creeps at little in 4th on a hard pull. He is not gonna run a controller for a long while, just the stiff spring.

mrstepheneades

Solid billet motor mounts are going in before he drives. We just bolted stuff up for the pics. He's pulling all apart to switch engine this coming week and solid mounts will go in before it is driven or even cranked.

mrstepheneades

Old worn out LS6 out........................


More durable 2003 4.8L back in...




LS6 Oil Pump Installed
LS6 Lifters
LS6 Timing Chain

Waiting on cometic head gaskets. Arp bolts will be going in heads.

Cam is 238/244 dura, 605/612 lift, 114+2. This was in the old ls6. So he is reusing at first to see how it does.

Steven is doing all of this im just updating the thread for him.

smokeshow

iTrader: (17)

No used stock cams available?

D-Man304

iTrader: (1)

Can you keep the sway bar with this setup?

mrstepheneades

Sure he is just using this stuff from his ls6 because he wants to save money. He is not that picky about a few hp here and there.

mrstepheneades

No the sway bar has to be removed with this setup.

Sarg

iTrader: (6)

Curious to see where this ends up. What size turbine did he get?

mrstepheneades

73mm turbine. He called forced inductions as I suggested and told them what the application was gonna be and his goals and they suggested the s366.

Sarg

iTrader: (6)

I imagine this will have roots blower style response and kinda fall off up top. Can't wait to see the dunk graph.

mrstepheneades

That's the biggest turbine they offer on that unit. He's looking for 700rwhp max in the future. Only looling for 550 or so now though on first tune.

Sarg

iTrader: (6)

Was supposed to say dyno, not dunk. Dang autocorrect.

mrstepheneades

Roots blower spool is what I'm thinking too. Should work good with the t56.

DrTurbo

iTrader: (3)

For 550rwhp like he wanted the turbo will work well with the small cubes and trans setup. The turbine wheel is 82/73 vs the S400 is 83/74, so the S300 is not that much smaller.

mrstepheneades

Another picture of the 4.8 going in. Just went over there on my lunch break to pick up some leftover parts I needed for my mock up engine.

rotary1307cc

iTrader: (5)

Cool setup. Will be a good runner. Awesome turbo for the money with a good sized turbine

Loud compressor too haha

mrstepheneades

What would you say maxing this turbo out on the 4.8 will yield? Will he see possibly 700 with turbo maxed? Or will it choke before then? Haven't really seen many single setups with smaller turbos like this its always twins you see. But like I was telling Steven it should be really fast spool for street driving. Should stay in boost better than the larger turbos.