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carbies offroad

Posted: Sun Jun 28, 2009 7:07 pm
by trev1
Whats the best carb to have on a v8 in my cruiser offroad? I've already got a quadrajet, but I am after other opinions from people who are in the know

Posted: Sun Jun 28, 2009 7:23 pm
by davidwalton
i just got a Holley offroad 780cfm, its on my mild 350 chev but i haven't had a chance to take it off road yet but they are supposed to be really good.
You have to have a high vacuum signal to run them properly, so a dirty big cam in a v8 is not a great idea.

Posted: Sun Jun 28, 2009 8:07 pm
by brentz
my dad has the holley on his neva a problem!

Posted: Sun Jun 28, 2009 9:14 pm
by lokka
Standard holly will give you grief on uphill climbs it will spew fuel out the bowl vent and the ventri will suck it in a flood this is okwhen climbing steep dunes with WOT but no good crawling up steep inclines in tha scrub ...

Apprently the quady is one of the better off road carbs tho it has to be tweeked im not sure on the tweek but someone on here will know usualy the rover crew will be in tha know as they work good on the rover V ...\

Me i modded my 2bbl holly on the 4.4 in my rangie i blocked up the original bowl vent and moved it to the dead center top of the bowl this way it has to go vertical or roll over sideways just about before fuel will come out and all i did then was to put a longer breather pipe on the new hole and plumb it back above the ventri to let the fuel bowl breath as it requires slight vacume form the ventri tokeep the thing running ...

I found this set up to work better than the holly off road kit i put in a mates which got sold before i moddedit like mine and this off rod kit was worth about 60 od bucks for a couple of bits of plastic which did SFA realy ...

Posted: Mon Jun 29, 2009 12:52 am
by Tiny
boot the carby and go injection

Posted: Mon Jun 29, 2009 4:01 am
by longlux
lokka wrote:Standard holly will give you grief on uphill climbs it will spew fuel out the bowl vent and the ventri will suck it in a flood this is okwhen climbing steep dunes with WOT but no good crawling up steep inclines in tha scrub ...

You can buy a plastic flute that is made to stop this problem I fitted one to mine when I was running a 253 in my lux.

It was only a few bucks & fixed the problem.

Posted: Mon Jun 29, 2009 9:22 am
by trev1
boot the carby and go injection

I'd love to but we aren't all made of money, besides a well set up carby doesn't give much away to injection.

Posted: Mon Jun 29, 2009 12:41 pm
by SIMMO84
Injection is near the cost of a decent carby.

Posted: Mon Jun 29, 2009 1:45 pm
by trev1
Injection is near the cost of a decent carby


Where do you shop??? I've been looking and I have to disagree. To buy new, or remanufactured , you can not get injection for the sorts of prices companies want for carbs.

Re: carbies offroad

Posted: Mon Jun 29, 2009 4:00 pm
by KUSTOMV840
trev1 wrote:Whats the best carb to have on a v8 in my cruiser offroad? I've already got a quadrajet, but I am after other opinions from people who are in the know
Image

http://holley.com/types/Truck%20Avenger.asp



I got one of these on my truck, BLOODY NICE. I have never had a problem starting, offroad with angles or flooding or starving for fuel. Cost me 600 new. Bolt on out of the box, hook up 12v to the electric choke and away you go. Definatley one of the best investments I have made.