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Smokinlegend 11-01-2005 01:35 PM

496/HO in Top Gun
 
What the speeds to expect with stock 496/HO and bravo 1's in a full cabin non-step top gun ?

BLee 11-01-2005 02:16 PM

Re: 496/HO in Top Gun
 
depends on the year, but probably low to mid 60's.

Sydwayz 11-01-2005 02:18 PM

Re: 496/HO in Top Gun
 
Cigarette1 here on OSO had a full cabin Cafe Racer on 496HOs. I dunno the speeds, but he may can lend some info.

gotime34 11-01-2005 02:21 PM

Re: 496/HO in Top Gun
 

Originally Posted by TwinStepGun
depends on the year, but probably low to mid 60's.

I always thought the non-stepped hulls were pretty much the same from the late 80's until they made the stepped hull. Is it just lighter, or did they actually change the hull design??

thedonz 11-01-2005 02:29 PM

Re: 496/HO in Top Gun
 
low 60's tops' 64-65 :mad:

jr

OldSchool 11-01-2005 02:39 PM

Re: 496/HO in Top Gun
 
I think that they built quite a few in the early 90's that had 502 mags. they ran mid-high 60's. I have a buddy that has a 94 with 500efi's. His boat runs 72 on gps.

BLee 11-01-2005 02:57 PM

Re: 496/HO in Top Gun
 

Originally Posted by gotime34
I always thought the non-stepped hulls were pretty much the same from the late 80's until they made the stepped hull. Is it just lighter, or did they actually change the hull design??

They started vaccum bagging the hulls and messed with the center of gravity in the mid 90's. That increased the speeds a little. Still not going to be very quick with a full cabin and 496's.

gotime34 11-01-2005 03:15 PM

Re: 496/HO in Top Gun
 

Originally Posted by TwinStepGun
They started vaccum bagging the hulls and messed with the center of gravity in the mid 90's. That increased the speeds a little. Still not going to be very quick with a full cabin and 496's.

What HP would you need to go 100MPH in a non-stepped? Old School's is one of the only ones I've seen thats goes over 100. Does anyone know of any others? Sorry to sort of hi-jack your thread Smokin.

thedonz 11-01-2005 03:33 PM

Re: 496/HO in Top Gun
 
we have twin 1050's and we see 105-107 but to get to a hundred a pair of 875 hp or 900 will do cause i know most non-steps guns that have twin 850 see 94-95 mph all day

jr

Cigaretteman 11-01-2005 03:57 PM

Re: 496/HO in Top Gun
 

Originally Posted by Smokinlegend
What the speeds to expect with stock 496/HO and bravo 1's in a full cabin non-step top gun ?

I am with TwinStepGun on this. Huge difference in weight between the years. I have owned a 1989 kevlar and a 1992 fiber the 1992 was a much lighter boat. It will not be really fast with 496īs but you canīt find a better ride in the rough.

Cigaretteman

OldSchool 11-01-2005 04:11 PM

Re: 496/HO in Top Gun
 

Originally Posted by thedonz
we have twin 1050's and we see 105-107 but to get to a hundred a pair of 875 hp or 900 will do cause i know most non-steps guns that have twin 850 see 94-95 mph all day

jr

Different animal JR.

Your Dad's is staggered.

IMO, With a side-by-side config...it would take 975 per side to hit 100....maybe more depending on setup.

I've heard that D-Man's ran 104-105 with 1000's.

BLee 11-01-2005 04:13 PM

Re: 496/HO in Top Gun
 

Originally Posted by OldSchool

IMO, With a side-by-side config...it would take 975 per side to hit 100....maybe more

That is correct bro. Primal Instinct has 950 Chiefs and tops out at 97 or so. :cool:

WildWarrior 11-01-2005 04:17 PM

Re: 496/HO in Top Gun
 
[QUOTE=gotime34]What HP would you need to go 100MPH in a non-stepped? Old School's is one of the only ones I've seen thats goes over 100. Does anyone know of any others? Sorry to sort of hi-jack your thread Smokin.[/QUOTE

You need a few thousand hp in a non stepped Gun to really run in the 100s .
With almost 900HP per side in our lighter weight 97 Kevlar Cover Girl Gun we have run a best of 95mph with 2 people low fuel good air and very rough water. High 80s fully loaded every day of the week.
It takes a ton of power to make these boats run , but there aren't to many Vs that will handle like the Gun at speed in the true Rough stuff!

Son of a Gun 11-01-2005 04:44 PM

Re: 496/HO in Top Gun
 
Yeah I can't imagine it would run very fast with 496's. We only get low 70's with 540 Bulldogs at 500HP a side.

Hydrocruiser 11-01-2005 04:47 PM

Re: 496/HO in Top Gun
 

Originally Posted by sono***un
Yeah I can't imagine it would run very fast with 496's. We only get low 70's with 540 Bulldogs at 500HP a side.

496 HO's can be pumped to 500 Hp aka Raylar or Whipple "safely"...and that would give ya decent speed and durability too.

Beyond 500 HP with those coated aluminum pistons you are on your own..

thedonz 11-01-2005 05:04 PM

Re: 496/HO in Top Gun
 

Originally Posted by OldSchool
Different animal JR.

Your Dad's is staggered.

IMO, With a side-by-side config...it would take 975 per side to hit 100....maybe more depending on setup.

I've heard that D-Man's ran 104-105 with 1000's.

thanks for correcting me buddy and ya correct,, for a moment there i didn't think about the stag..... i haye it when i'm wrong

jr

BLee 11-01-2005 05:05 PM

Re: 496/HO in Top Gun
 

Originally Posted by thedonz
thanks for correcting me buddy and ya correct,, for a moment there i didn't think about the stag..... i haye it when i'm wrong

jr


Mr. Cigarette would have known that........... :evilb: :D :D :drink:

Nauti Kitty 11-02-2005 05:43 PM

Re: 496/HO in Top Gun
 
1 Attachment(s)

Originally Posted by TwinStepGun
That is correct bro. Primal Instinct has 950 Chiefs and tops out at 97 or so. :cool:

Yes but this boat owner has literally a few minutes actually trying to make it go faster. Way too busy boozin and filandering around to care that he has potential ineffeciencies lurking about. :rolleyes: NK

BTW It's the little one in the back falling behind


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