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-   -   Nose cone, good or bad idea. (https://www.offshoreonly.com/forums/general-q/166505-nose-cone-good-bad-idea.html)

Fenderjack 08-22-2007 04:07 PM


Originally Posted by Ryan00TJ (Post 2243997)
Are you sure of the 1.98 ratio in the Alpha? That ratio was used with 4 cylinders. Powerboat did a test years back and found the Alpha Gen 1 would experience hydrodynamic blowout around 70mph. I figure there are some factors that could affect the speed but it's around there that they are required to go faster with the Alpha drive. The Bravo has no problem at those speeds as it has a better aspect ratio.

I have Hydromotive nosecones on my Alpha Gen 1's. They require alot of blending, sanding and elbow grease to mount and make look like factory. I have the process down to a science. I'm running a 355ci SBC with around 400hp and am seeing 70-73 gps most of the time.

Give us some specs on your stinger's engine? Seems to be running good.

http://img504.imageshack.us/img504/8...yingsk9.th.jpg

http://img250.imageshack.us/img250/1...ted2lx7.th.jpg

I beleive I am exp'n the blowout. This boat came with a 4.3 175hp v-6 and I am sure the gears are 1.98's. If The cone will truly help this on the alpha I don't mind doing the work for the cone.
RYAN I just purchased the engine a month or so ago, when we sold the 6 banger. It is a 96 or 97 fuel injected 350, other then a computer tune from ASM it is stock. I have put a set of emi exhauste on it. I have read that the stock tune is pretty good on those engines, the tune usually just ups the rev limit. There might be something more then just that in this tune it is defenatly making more power then we thought, I could spin a 28B 4 blade to the box 5500rpm, no problem, can also hit it with this new 30p B1, so we are thinking the hp might be around 365-370, could be wrong but none the less this thing screems, am right about the 75mark on gps. I just want to go faster, every lil bit counts know what I mean. I will have to research more on the cones and alphas, but keep the info and exps coming.
John


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