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Author Topic:   1" carb spacer
jammin james
Member
posted September 07, 2003 05:40 PM
had a four hole spacer, went to put it on and decided not to looked like a bigtime restrictor. bought a square hole spacer and when we went to put it on it, looked like it was going to restrict it too. I want to put a spacer on but i sure don't want a restrictor plate on the thing. any thoughts?? thanks


racer17j
Member
posted September 07, 2003 06:10 PM
how much or the intake holes does it cover?


jammin james
Member
posted September 07, 2003 06:19 PM
off hand i would say 20%or so, both plates i have were just over the counter spacers


racer17j
Member
posted September 07, 2003 09:17 PM
look in some racing catologs i know jr motorsports has open plenum spacers for around 20 bucks.


B MOD MAN
Member
posted September 07, 2003 09:37 PM
Check out Flow Design carb adaptors they sell for about 100 bucks but from what I hear they are worth it. www.flowdesign.biz


ratracer10
Member
posted September 08, 2003 08:11 AM
You can use either spacer on any intake just depends on what you are tuning for. In general the 4 hole spacer will help with midrange and the open will help top end. Plus the spacer will help insulate the carb from the intake and heat of the engine.


xx RACER 96
Member
posted September 08, 2003 12:37 PM
use an open spacer with a four barrel will give better results


Racer14K
Member
posted September 09, 2003 03:23 PM
Mount the carburetor to the plate using studs, open the throttle plate and scribe your lines, remove carb from spacer. Now you're ready to go to work, use a brake cylinder hone and use brake clean for a lubricant to enlarge the bores. Once you get them to the correct size use WD-40 as the lubricant to get a nice smooth finish. Now you put the gasket on the spacer and trim it to fit the holes.

I did this on a two inch spacer and have close to four hours time in it, trying different lubricants. The brake clean lets it cut fast without gumming up and the WD-40 gives it a slick finish but cuts real slow.

You may also want to check the top and bottom diminsions with a set of calipers to make sure the holes are the same size all the way thru.

Dixon
Member
posted September 09, 2003 09:10 PM
I'd call Joe Patelle of High Velocity Heads. He is the absolute expert when it comes to carb spacers. HVH has a line of spacers called "Super Suckers" that produce more power than most. There have been numerous articles on his products and he has spacers designed for specific intake/motor combinations. His latest article is in the August edition of DIRT LATE MODEL magazine. www.highvelocityheads.com
(865)573-9151


dirtbuster
Member
posted September 10, 2003 09:22 AM
We have used the hvh supersucker spacers and they do work very well. On our engine on the dyno they picked up an honest 8-10HP and some torque over a wide rpm range. That is versus a standard open spacer.


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