99 Donzi Z22BR 383
Anyone know if the Z22BR hull will handle more speed,right now i'm at 54 mph indicated and 48 gps speed.
I have the 350 MPI Mag has 300hp with an alpha Gen 2 with about 100 since a jasper reman. What type of speed will i see by adding a 383 475hp stroker and a Bravo 1 ? |
Originally Posted by Donzi Z22
(Post 4580275)
Anyone know if the Z22BR hull will handle more speed,right now i'm at 54 mph indicated and 48 gps speed.
I have the 350 MPI Mag has 300hp with an alpha Gen 2 with about 100 since a jasper reman. What type of speed will i see by adding a 383 475hp stroker and a Bravo 1 ? |
Originally Posted by 1BIGJIM
(Post 4580474)
Tell us how you plan to get 475hp out of a 383?
My family is from a small town called Plainview... |
Originally Posted by Donzi Z22
(Post 4580487)
Going by what the machine shop says 450 to 475. So is it not likely ? Omaha, lots of kin there.
My family is from a small town called Plainview... |
You add 150 hp you will add about 10 to 12 mph.
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Originally Posted by Trash
(Post 4580513)
Well, it certainly can be done, but things like compression ratio, rpm, cam etc required to make that power in a 383 often are not compatible with day to day marine use.
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Originally Posted by dereknkathy
(Post 4580516)
You add 150 hp you will add about 10 to 12 mph.
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Originally Posted by Donzi Z22
(Post 4580520)
Trying to get something reliable and get mid sixes. Is there a rule of thumb for speed ?
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Rule of thumb is over 1.0 hp per cubic inch is expensive and unreliable. Put a 454 in it. Aluminum heads and it is essentially the same weight as the small block you took out. But you spend 3 to 5k and speedo will say 62 instead of 54. It is a paid for reliable nice setup.
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I just googled the boat..it looks to be less than a 24 degree bottom? and it has a pad? and your seeing 48 mph gps with 300hp thru an alpha?
Before you start building anything, figure out whats wrong first. If its the bottom I saw in the google pik, with 300 hp you should be 10 mph faster. |
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