Offshoreonly.com - which hvh carb spacer do i need

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Offshoreonly.com (https://www.offshoreonly.com/forums/)

- General Q & A (https://www.offshoreonly.com/forums/general-q-20/)

- - which hvh carb spacer do i need (https://www.offshoreonly.com/forums/general-q/123648-hvh-carb-spacer-do-i-need.html)

cstraub

03-02-2006 08:42 AM

Re: which hvh carb spacer do i need

HVH is the way to go. I would use aluminum in a marine application for USCG rules. Wood or plastic in the fuel track may not go over well if the boat was to catch fire.

Spacers "tune" the length of the intake track. Air moves in pulses, these pulse have length. Each engine will require a different length for maximized tuning.

The HVH spacer was OUTLAWED in NASCAR in the early 80's after a win by Petty I believe. So we can all assume it works very very good.

BajaRunner

03-02-2006 08:53 AM

Re: which hvh carb spacer do i need

can you be safe to say a 1" will help, or is there a chance for hurt?

Nordicflame

03-02-2006 09:23 AM

Re: which hvh carb spacer do i need

1 Attachment(s)

I just had Mesa Balancing work over a 800 Holley and they recommended the 1.5 " Wilson Manifolds tapered spacer.
I'm sure they all work and have seen some good results posted with the HVH.
Just more info... :rolleyes:

BajaRunner

03-02-2006 09:25 AM

Re: which hvh carb spacer do i need

Quote:

Originally Posted by Nordicflame

He just did mine as well. he was out of the wilsons, so i ordered the hvh 1"

Nordicflame

03-02-2006 09:32 AM

Re: which hvh carb spacer do i need

Should work great.
He ran over to Wilson's Tuesday and picked one up and stuck it in the box with the carb for me.
Keep us posted how you run after the work :drink:
Dave

BajaRunner

03-02-2006 09:47 AM

Re: which hvh carb spacer do i need

Quote:

Originally Posted by Nordicflame

Should work great.
He ran over to Wilson's Tuesday and picked one up and stuck it in the box with the carb for me.
Keep us posted how you run after the work :drink:
Dave

He must like you better :drink:

KAAMA

04-25-2006 06:37 PM

Re: which hvh carb spacer do i need

Quote:

Originally Posted by TC

What about the thermal barrier properties of the phenolic material? Is the transfer of heat in a marine engine compartment not as much of an issue as in automotive? I have used a 1" Mr. Gasket phenolic spacer for many years and thought that the thermal barrier it provided between the intake and carb was probably as much of a gain as the extra air flow and signal it may have provided. I realize and fully agree that they are mainly a tuning tool but what about the heat?? I plan to purchase a new tapered/blended spacer but am still unsure as to which direction to go.....Canton, HVH ,Wilson and others. Any comments? Please!!

Anyone have any input about what is being asked in the above quote??? thanks

Wobble

04-26-2006 08:31 AM

Re: which hvh carb spacer do i need

Quote:

Originally Posted by KAAMA

Anyone have any input about what is being asked in the above quote??? thanks

If you are asking about the heat transfer, I don't think it's a big issue in a boat motor. My motor with a Merlin single plane intake often has condensation on the intake after a run. It may be somewhat of a factor in no wake zones where the heat tends to soak up.

rmbuilder

04-26-2006 10:38 AM

Re: which hvh carb spacer do i need

Quote:

Originally Posted by KAAMA

Anyone have any input about what is being asked in the above quote??? thanks

Kaama,
Scott at CFM is quite knowledgeable in this area. I'm sure he can help you with these questions.
Give him a call @ 603-238-6721.
Maybe he will come by and post on this topic.
Bob

Wobble

04-26-2006 10:43 AM

Re: which hvh carb spacer do i need

Quote:

Originally Posted by rmbuilder

Kaama,
Scott at CFM is quite knowledgeable in this area. I'm sure he can help you with these questions.
Give him a call @ 603-238-6721.
Maybe he will come by and post on this topic.
Bob

Don't know if I have ever seen him post over here. He stays busy in the UC section over at SW these days :drink:

Link to CFM Tech website http://www.cfm-tech.com/

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