2.385 Boost TVS?

[betiwin]

What is the approx boost level with a TVS with 2.385/2.4 upper with stock lower and stock manifolds? Ok to run on 93?

 

[enormous]

I recently had my 08 dynoed at Alternative Auto in Mi. with a BPS 2.396 spinning a 13 TVS. On 94 octane I hit exaclty 19 pounds boost at 6500rpm.

 

[fullboogie]

I'm at just shy of 18 lbs (17.8) with stock manifolds and an offroad H at 6,200 rpm on 93 octane.

 

[kleen93gt]

I hit 19lbs with mine when I had the stock manifolds...

 

[VNMOUS1]

What is the approx boost level with a TVS with 2.385/2.4 upper with stock lower and stock manifolds? Ok to run on 93?

Depends on wx, altitude, etc. But at sea level through cats you'll be 17(ish). 11+ cars can get enough fuel, or if anything, need boosters but not injectors.

Pre-11 cars will likely need injectors.

Either way, datalogging guides you.

Feel free to contact me if you want to discuss further.

Bj

 

[BilletProShop]

thru cats we have seen 19.0-19.5, no cats will drop approx 1psi
again datalogging is strongly recommended

 

[phinhead34]

18.5 psi with stock exhaust manifold with o/r h.

 

[betiwin]

So how safe is this really? I always thought 19lbs was pushing it for 93?

 

[fullboogie]

With the right fuel system (some combination of BAP, injectors, pumps, etc.) and the right tune, you'll be fine. If you're asking whether the potential HP exceeds what the shortblock can handle, there are plenty of people running this combo. Just make sure you log and monitor your a/f and pump duty cycles. I recently caught a potentially fatal fuel system problem because I happened to be monitoring fuel pump duty cycles on my Interceptor.

 

[betiwin]

So would 13 injectors not be enough to handle this? I am currently at 615RWHP on a 2.6 pulley. I figured I would be close to 655RWHP with 2 more LBS and a port matched elbow.

 

[fullboogie]

I would ask the guy writing the tune for your car about injector sizing.

 

[phinhead34]

You should be sniffing 700whp.

 

[91z28350]

Through ARH 1 7/8 headers, off road H and 3" exhaust I hit max boost of 15.83 @6300 yesterday. That was with FRPP twin 65, bap and 80#injectors. Ambient air was 101, and car made 680/672.

 

[SuperFly03]

VMP TVS, 2.4", 10% lower, 1 7/8" ARH Headers, O/R X Pipe, Borla ATAK = 21 PSI @ sealevel

72# ID Injectors, JLT CAI and Whipple monoblade TB.