PatriYacht

That is amazing for 93 octane. Do you think that is really long term safe? That has the gears grinding in my head. What size Whipples are those?

Young Performance

They have just about 100 hours and going strong. They are owned by Thunderusone on the board.

They are 3.3L Whipples. Actually, the power was down a little over what I expected. However, the torque was up, which is good for the heavy boat they are in. I think the carb. is just a little to small, accounting for the increased torque and lower power.
We really spent the time to tune them to a tee. They drive and run as good or better than any efi engine. It actually surprised me how good they drive and idle.
Eddie

Velocity Vector

iTrader: (4)

Eddie, do you have any used 3.3's?

HALLETT FAN

I'm running a 3.3 whipple with 9.5 comp 565 inch engine and I usually run 91 octane. my boost is fairly low , 4.5 to 5 lbs , but it runs strong !

Young Performance

No I don't. I don't know anyone that wants to sell them once they get it.

carter38

I'm running 516ci 9:1 with a TBS 10.71 made 760 on 91 octane.

mike tkach

iTrader: (3)

YEP

Velocity Vector

iTrader: (4)

I figured you would get a grin out of that.

Young Performance

No doubt huh?

However, I do know where to get some new ones. It just so happens that I have them on sale this week.

bultmand

my 598 NA made 760hp at 5950 on precision's dyno. boat runs pretty good, 112 on gps speedo, but takes forever to get there.

with a CR of 10:1, i plan to use a thick cometic gasket, about 0.100", to get the CR to 9.

with the new whipple 4.5L, should make around 1050 with 7-8psi.

i am using the holley HP EFI and will creep up on the timing and AFR.