Project update
 

Very interested to see what numbers you are pulling with the1.35 gears. I have a 06 353 with 600/s and I am also running 93MPH-- this is NE lake water vrs salt water.

The new lowers from IMCO shall arrive today

We have to deliver a 37 PC with several custom changes on the weekend - no time this week for the 353

So next week I will have the new speed numbers

Are you still turning the props out?

Have you tried turning them in yet?

I am running 509's NA aprox 650 hp with IMCO 12" extension boxes and -2" Spormaster shorties. Best so far is 89.6 with a stock 32" Bravo 1 4 blade turning in. I haven't tried them turning out yet, but plant to do so, soon. Motors will turn up to 6000 rpm's, but I'd like to be around 5400 and in the 90's.

Thoughts?

Dave

Hey Dave, we turn the props inward on a stock 353 w/525`s and actually loss top end speed, Formula told us it was because of how the boat bottom was made.........................:cool-smiley-011:

Well, I know I should try it both ways again....When I changed out the Bravo's to XR's I had heard that I would lose a couple mph because of the straight cut gears, so I turned them in to make up the difference. Maybe it just doesn't like it? I'll change it back this weekend and report back!

Thanks,
Dave

Correction, If anyone cares?

1" shorties, 1.36 ratio, labbed 30" bravos/stamped 32"(how I got them..)spinning out, @5200 rpm.

The boat is going back together with some improvements, looking for triple digits of course.

LE

As you can tell, I'm not much of a post person.. Out of curiousity, what are some of the fastest Fastech's(353,382) people have claimed too??

LE

I've run mine up to 92.
Had 6 people, coolers and 3/4 fuel onboard.
I have bravo 1's labbed by BBlades to 33 p but I think I can turn 34's.
500 EFI's w/ Whipples and Imco Extreme SC drives.
To be honest I'm not really interested in going too much faster in the 353.

AH..... I was close!!! I could not remember it all!!

How long have you run the whipples on the 500efis?