Offshoreonly.com - Vyper performance- help!

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- - Vyper performance- help! (https://www.offshoreonly.com/forums/powerquest/132251-vyper-performance-help.html)

Mentalpause

06-16-2006 07:31 PM

Re: Vyper performance- help!

Quote:

Originally Posted by PWRQWST

1998 and 99 hulls are a little slower then the 2000 and newer models, due to a redesign. Best I ever got was 78.8 GPS and run 75 all day. I should get 80 to 85 after rebuild, will see. I can tell you that if you are running it in mild chop that will slow you down these boats like big water and they handle it well. I also am running 30 pitch 4 blades so try props and water conditions. Good luck.

Rich.

I assume you will be out this weekend putting those 10 hours on the boat. I don't think you can keep your hands out of the throttles that long! :p

performancemary

06-17-2006 09:14 AM

Re: Vyper performance- help!

I had a 99 Viper with the HP500's carb.. I used 30' bravo1's labbed and stock. Top end was 75 to 77 reguardless of load . Boat ran best at midrange, lots of grunt . Also came out of the hole well but lots of bow rise. Always wanted to try a pair of 28's to get the RPM's up as I was at about 5000 tops. This is all GPS.
Also consider a set of five blades. Suggest 26 or 28 pitch.

Slick02

06-20-2006 10:38 AM

Re: Vyper performance- help!

Quote:

Originally Posted by performancemary

Mine had the 28 pitch bravo 1 props and pulled just a tick over 5,000 rpms.

cbgenrl

07-20-2006 09:27 AM

Re: Vyper performance- help!

What do you guys think this boat would GPS at?

http://adcache.boattraderonline.com/6/7/7/80562477.htm

99' vyper with 454 mags

Anybody ever run one with this setup?

I keep looking around for my next boat, hard to beat the space of a PQ for the type of boating I do.

Slick02

07-20-2006 10:20 AM

Re: Vyper performance- help!

Quote:

Originally Posted by cbgenrl

Beautiful boat, it has the same stripe pkg. mine had except mine was black/teal/purple. That being said, with what I know about 34 Vypers(admittedly not much) an educated guess would be somewhere in the mid 60's. with that power pkg. and a light load. But for that price if the boats as nice as it appears to be, you could upgrade power and sell off the 454's to offset some of the expense and have a damn sweet ride.

Just my opinion....but then again, what do I know.

Knot 4 Me

07-20-2006 10:29 AM

Re: Vyper performance- help!

Quote:

Originally Posted by cbgenrl

If I was serious about a Vyper I would take a hard look at Tim's old one up in Spring Valley. It's a known entity in terms of condition and performance.

Mentalpause

07-20-2006 12:18 PM

Re: Vyper performance- help!

Quote:

Originally Posted by cbgenrl

Probably about the same speed you are running now.

But you could put 850s and #6 drives on it and sell you drives to Rich. :eek: Then we could re-rig K4M to twin 454 mags!

Perfectmix

07-20-2006 02:32 PM

Re: Vyper performance- help!

I think the pictures are telling lies about that boat. Just like the max speed suggested by the ad:D My friend looked at the boat in April. It needs some TLC. Been neglected for a while. Just his observation it could of been taked care by now.

cbgenrl

07-21-2006 07:10 AM

Re: Vyper performance- help!

I am not looking at any one boat individually, too busy for that. Just curious on what the boat would do with that power......

performancemary

07-23-2006 09:07 PM

Re: Vyper performance- help!

1 Attachment(s)

If you are looking for a PQ with speed on the low 80 range look at my 38' Poker Run Eddition Avenger. Its in the classifieds..
Relative to a Viper with 454 power you will not see 70. :drink: :drink:

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