LT1RAY

iTrader: (21)

And just to clarify, a walbro gs340 is a 255lph pump.

mrstepheneades

Yes this is true.

kbracing96

iTrader: (25)

I really wanna see how this thing runs out too. I've got a s366 kit I built we are gonna throw on my buddy's 6.2 Denali daily driver and see how it keeps up. only looking for about 450 out of it. I'm gonna build another kit and max that turbo out on my LS1 shop truck and see what kinda power and boost it can make before it falls on it's face. Its got a big hot side so shouldn't be too restrictive there like a lot of the 65-68mm turbines are.

mrstepheneades

Dyno'd today. Numbers are coming when we can get the graph posted. Cam obviously is to large for the setup and bleeds a little boost off on top as a result. Steven realizes this though.

Sarg

iTrader: (6)

Well that and the turbo is kinda small, haha.

mrstepheneades

Martin's gonna post the graph in the morning. I think I done pretty good on only 8psi. You know turbos don't wakeup till the higher levels anyway.

Sales@Tick

iTrader: (3)

8psi 18* timing



This turbo on this size engine should make well over 20psi. I would think he could achieve 700rwhp turned up to that level.

jay_rich

iTrader: (8)

Im surprised the power didn't come in sooner. Definitely interested to see how it does on 15psi+ maybe with a better suited cam

Jay

mrstepheneades

Thanks for posting Martin. Ill get with him and switch/stack some springs and see what it does on 12-14psi. I think it would make close to 600 on 14psi especially with that much timing.

Sales@Tick

iTrader: (3)

Jay,

The cam is large so it's affecting spool time. Mainly the overlap that it has and it's late intake valve closing event.

Reversion city right now until the piston speed becomes high enough to "break free" of that reversion around 5000rpm. Then you see power come in.

I call it "V-tech mode".

mrstepheneades

Martin, I talked to him this morning and im gonna let him borrow one of my springs to add in there and turn it up a little more lol.

got-a-ls1

iTrader: (12)

nice. been planning on putting this turbo on my trans am for a 550rwhp setup for a few months. look forward to more updates! for the price of this turbo i cant see buying a cheap *** china one. its only like 300 bucks more and you get bw quality

Forcefed86

iTrader: (4)

Buy a cheap 3 dollar regulator and use shop-air to the top WG port. Should be able to the boost to what ever you want.

Gotta go at least 15lbs!

stevieturbo

What are you using to control boost ?

And are you using the top port of the gate at all ?

mrstepheneades

Top port of the gate is open to atmosphere. Bottom port is referenced to intake. He is just using a spring in the gate to control boost for now. He picked up the car today and on the street it makes 11psi. So obviously its making more power on the street than the dyno. Trying to talk him into a little street run between us when it dries up. Like to get some video.

mrstepheneades

Little action video he recorded today!

1BADLS1tuner

iTrader: (5)

what gears are you running?

Sarg

iTrader: (6)

Nice, I think once you get the new spring in it and get it back on the dyno it should come in a lot faster. I bet it is starting to blow the wastegate open quite early and making spool suffer.

mrstepheneades

He runs a 410 gear

mrstepheneades

He said this was only making 9psi in video.