Velocity 320 engine and drive swap

Velocity Vector · #1 03-20-2009, 10:38 AM

It has been a year and we are almost got'er done, we fired the Supercats off and she sounded so good going thru the Stellings headers and dry exhaust tails. We swaped the 496Ho's for Mercury Supercat racing engines and added imco extension boxed, swapped the B1's and added XR's with 1 inch lowers. I have a set of B1 4 bladed 34P props we are going to try first. The Prop calculator say's if we can turn them 6000 rmp's with 12% slip = 112 MPH. Each engine dynoed @ 634hp @ 6000 rpms. Also bought a new aluminum Myco trip axel 15000 pound trailer to put her on. Thanks for all the support and advice we have gotten from Boatfreaks. VV

Velocity Vector · #2 03-20-2009, 10:49 AM

We also changed up the dash a little with the help of livorsi monster gauges.

Velocity Vector · #3 03-20-2009, 10:53 AM

Dyno's

http://s265.photobucket.com/albums/i...t=ef5e67a0.pbr

Diamond Performance · #4 03-20-2009, 11:22 AM

Looks like you have been busy. Good Luck!

Velocity Vector · #5 03-20-2009, 09:08 PM

Quote:

Originally Posted by Diamond Performance

Looks like you have been busy. Good Luck!

Thanks Bill, it's been a jorney to say the least, first trip out last year about this time I blew one of the 496's haven't been on the water since. I will be glad to get this puppy off the payroll and in the water.

MIKES280 · #6 03-20-2009, 10:13 PM

good luck with the first run and keep us posted

wet_rat · #7 03-21-2009, 10:54 AM

I have been watching your swap all along--glad to see those things sitting in their home. Can't wait to see some running numbers

Velocity Vector · #8 03-21-2009, 09:07 PM

Thanks guy's she gona be a hand full. Hopeing the extension boxes settle her down a bit. Can't find anyone including Velocity that has tried them on a 320. I'm sure proud of my new Myco and it is new., stole it for $5,900.00 and 900.00 to ship it from FL.

MMarsha · #9 03-22-2009, 02:57 PM

Congrats!! Nice re-rig project!!

CBlakeNS · #10 03-22-2009, 05:08 PM

Very nice, get some running pictures or videos would be nice

Velocity Vector · #11 04-28-2009, 08:32 PM

Did another test today still have to get 800 more rpms. This was at 5000 rpms WOT with 34's 4 blades

jryan26 · #12 04-28-2009, 09:30 PM

Good job VV!

MIKES280 · #13 04-28-2009, 09:41 PM

great , how does the boat handle

MIKES280 · #14 04-28-2009, 09:44 PM

if i figured it right that is 12 % slip that is killer right out of the box

Velocity Vector · #15 04-28-2009, 09:56 PM

Thanks Guys, Didn't have much time to test, The extension boxes did help settle chine down. From 50 to 60 we had some hop, gave it a little more tab down @ 60-65 she padded up and railed to 90+ in a hurry then ran out of sticks. Slapping on a set of 32's 4 blades and see what she does next time. From what I hear the 34's 4 blades are actually 33's that calculates to 9-10% slip. She's hooking up good and didn't take long to get there.