Carb Spacer

[Fired Up]

I need to add a carb spacer to my 468BBC. We run in the low 10's in our flat at the races with a single 1050. There are 1" 4 hole spacers and open spacers. Some come with a tapered inside radius and others don't. What is your experience on what works and what is hype and doesn't? :confused:

[1978 Rogers]

I think your suppose to use the tapered on an open manifold to smooth the transition.

[cstraub]

Use the HVH Super Sucker, 1". If you need a WD that sells these let me know and I will send you a guys website or www.cfm-tech.com

[Moneypitt]

Sam, where have you been?? Long time no hear from........Ray

[Fired Up]

HEY RAY!
You're right ...it's been a long time. Last time we spoke you were thinking of moving to..Havasu? Things have been busy, busy, busy. Need to plan a Breakfast morning some weekend soon and all catch up. Haven't spoken to e-ticket in a long while either. :cool:

[Moneypitt]

Not Havasu, BHC, and I just got back from my second trip in 3 weeks, and going back next Tuesday with the race boat stuff to get ready for Parker. Which reminds me, you're still welcome to come along!! Trying to get Mike's shop/storage unit in some order to work in........But we'll make the Parker race, then rip it down for some major boat changes for March,(ming) or April,(Parker)...And yeah, a breakfast deal would be cool, lets do it this Sunday morn??????......What do you Ventura County guys think? ...........Ray

[lilrick]

sounds like a date! hehehe

[Fired Up]

Sorry,I can't access this site from work. Firewalls. Sunday obviously didn't work out, just finished a 72 hour shift. Maybe this Saturday? Call me.

[Moneypitt]

Sam, I will be gone to BHC by Friday, Gary will be gone to Mesa and back, the rest I haven't heard from......Ray

[GofastRacer]

Sam, I will be gone to BHC by Friday, Gary will be gone to Mesa and back, the rest I haven't heard from......Ray
So you gonna have it ready for Thanksgiving??..

[Fired Up]

No problem Moneypitt we'll just keep trying.

[Moneypitt]

Yeah Art, we'll make it one way or another. Trying it different this time, assembly in BHC at a shop that is suppose to be ready, (yeah, right). I hope to see you and Sandi at the races. We're actually going to try to test a couple of props prior to the race week, we'll see...........Ray

[GofastRacer]

Well hope you have better luck this time, we'll see ya out there!..

[Havasu47]

Use the HVH Super Sucker, 1". If you need a WD that sells these let me know and I will send you a guys website or www.cfm-tech.com
Chris is right, the HVH works great. I sell them if you want one pm me.

[182011]

CV Products has them also.

[Fired Up]

Have you combined the HVH 4 hole with an open 1 inch spacer to gain benefit from both, increased velocity and plenum?

[RumRunner]

Carburetor Spacers are used to tune in your power curve.
Normally an open spacer will increase your top end HP a little, and soften up the bottom end, and throttle response. This is due to increasing the plenum volume. Conversely, a 4-hole designed spacer will move your torque and power band down a little giving you better torque, and throttle response. This is due to the increase in air velocity through the 4-hole spacer. Usually the thicker the spacer 1/2" - 1" - 2" the more of an affect it will have. There are also combination spacers (half 4-hole, half open, or tapered) these can broaden the powerband on some engines. Usually it's a matter of trial and error to see what works best on your specific engine, and within your boat.

[TurboNova]

We have dyno tested most all carb spacers and found that the Wilson Manifolds four hole spacer always made more horsepower. Consistantly in the 30hp range and a couple times 50hp. They are a little pricey but worth it.