What is your oudrive depth?

[jeffswav]

Originally Posted by amazing1

I am trying to keep my eye out for a pair of decent 24p bravo1's for next year I got the boat running late this season. I didn't adjust my drive height that is where it was when I bought it.

Formula had it figured out back in 87. That must mean in had a 3 blade on it originally. You may want to try a 25p mirage and see what that does.

[amazing1]

I will keep it in mind.
thanks
Steve

[mountainmadness]

I have a powequest 185 xlt, 428 sbc. I am at 6.5" with my alpha SS. Right now its runs 87-88 before I get blowout, Switched to a bravo1 prop and its alot better. Planning on raising my X dimension 2.5-3" here pretty soon, That will put me about 3.5-4" below the hull.

[amazing1]

hey jeff I was wrong about my drive height it's alot lower than five inches below the strake I was running off of memory and I was wrong I will try and measure properly soon. i realized my mistake when I was filling the outdrive with fluid.

[jeffswav]

Originally Posted by amazing1

hey jeff I was wrong about my drive height it's alot lower than five inches below the strake I was running off of memory and I was wrong I will try and measure properly soon. i realized my mistake when I was filling the outdrive with fluid.

I thought that sounded pretty aggresive for 87. Only 3 blade props were available then. I have been told at 5" I will need a Bravo 4 blade vs Mirage 3 blade.

[AIR TIME]

Originally Posted by jeffswav

I did a inspection of the transom. Looks like I have a leak around the seal, exhaust blockoff, or a boot?? While I have it all apart I am going to raise the cutout and the engine a few inches. I am at 8" below the bottom now, if I raise it 3" that would put me at 5". MOW (from speedwake) is running his at 5.25 with good luck. My deadrise is 22deg very similar to the 265 force 21deg hull. The inner strakes and wedges are not a issue with this hull. After 60 the hooks (wedges) are out of the water. The strakes from the factory stop several feet from the transom. Looks like I am going to pull the engine in December and go from there. If anyone has any input that would be great. If anyone has had good experience with a Fiberglass shop in the St Louis Metro area I would be interested in that info also.

I PUT A'' SHORTIE ON MINE WENT FROM 7 1/2 TO 5 1/2 PICKED UP 8MPH WITH CARB CHANGE

[AIR TIME]

Originally Posted by amazing1

1987 formula 357-sr1 trs drives 5" below bottom of strake running bravo 1 4blade 26p props not labbed 540ci 620hp motors at 4800 rpms looking to raise the rpms to about 5500
so far I have hit 65 mph on speedo double checked with gps.

There to deep if you have twin 620hp , my buds 420 311sr1 runs 68 to 70 gps. and a cig tg or cafe with 620hp will run 75 and there at the same weight or heavyer. you need 2'' shorties and if need to lower by a 1/2'' until it bites good

[Audiofn]

Arti my speed is Speedo speed but probably close to accurate. 311 is a LOT lighter then a 357 however.

[AIR TIME]

Originally Posted by mountainmadness

I have a powequest 185 xlt, 428 sbc. I am at 6.5" with my alpha SS. Right now its runs 87-88 before I get blowout, Switched to a bravo1 prop and its alot better. Planning on raising my X dimension 2.5-3" here pretty soon, That will put me about 3.5-4" below the hull.

hey don't I now you from way back, who got the bat

[AIR TIME]

Originally Posted by jeffswav

I thought that sounded pretty aggresive for 87. Only 3 blade props were available then. I have been told at 5" I will need a Bravo 4 blade vs Mirage 3 blade.

true