carb spacer

[fryedaddy]

 i have a 1 inch carb spacer on my 428 right now.bbm heads,rpm intake,msd pro billit,..245 comp hyd cam,850dp,speed pro 10.7 pistons,arp.my question is should i have a noticeable amount more low end torque without the spacer?

[blykins]

Just try it and see.  I'm always amazed at how different engines don't follow the curve.   One engine might want extra plenum volume, another may lose 20 hp with a carb spacer. 

[fryedaddy]

Just try it and see.  I'm always amazed at how different engines don't follow the curve.   One engine might want extra plenum volume, another may lose 20 hp with a carb spacer.

i forgot to say its a open spacer.i guess your right Brent,i'll try it without the spacer and see what it does.its hard to tell on the street compared to a dyno or the track unless its a real noticeable difference.i may try a 4 hole spacer too,i need to get one with a vac line port on it anyway.it being a dual plane intake,it might like a 4 hole.i seen some results in Jays book on the spacers but i did not see anything on the rpm intake with spacers

[blykins]

I've never seen an engine yet with a Performer RPM not like a 1" Super Sucker. 

Also, depending on the camshaft size and how much plenum volume you need, I've seen a gain of 10 hp going from a 2" Super Sucker down to a 1". 

[Falcon67]

I have had generally good luck with 4 hole spacers on dual plane intakes.  I've picked up - on a 302 - going from a 1" to a 2" 4 hole.  As noted, your mileage may vary.  Also, it's not much of an issue to get a decent Moroso 1" spacer from Summit or Jegs, then just drill a 3/8" hole in the center of the rear until it breaches the rear bores.  Glue a piece of 3/8" steel brake tube in the hole, instant PCV port.

[fryedaddy]

i may try one of those super suckers,a little pricey,but boy their purdy

[Falcon67]

If I could find a china shop to repop those things, I'd make a killing.  Ain't paying $140 for a spacer LOL.  Yes they work, but looks to me like you could DIY just as well with some epoxy and a bastard file.

[jayb]

Those Super Suckers don't always work.  We added one on Royce's recent MEL that I dynoed, and the engine lost 25 HP with that thing.  See this post:

http://fepower.net/simplemachinesforum/index.php?topic=4736.0

[blykins]

If I could find a china shop to repop those things, I'd make a killing.  Ain't paying $140 for a spacer LOL.  Yes they work, but looks to me like you could DIY just as well with some epoxy and a bastard file.

You will find that even the "extremely close replicas" won't even work as good.....one of my buddies did a back-to-back between a Wilson and a Super Sucker and there was a difference (albeit small) in horsepower.   Between me and a local buddy, we go through them by the dozens.  If you want to try one, I'll sell you one for about half that price. 

Jay, can't say I've used one on a MEL, but I've been hard-pressed to find an engine that didn't at least pick up a few ponies with one.  Never had an engine take a nose dive in power when trying one. 

[jayb]

Yes, that was a surprise to us also.  But the test repeated; the power loss was real.

[fryedaddy]

SUPERSUCKER

[fryedaddy]

If I could find a china shop to repop those things, I'd make a killing.  Ain't paying $140 for a spacer LOL. 

  Between me and a local buddy, we go through them by the dozens.  If you want to try one, I'll sell you one for about half that price. 

can you send me info on one of these spacers

[Joe-JDC]

I have hand ported the four hole spacers into a super sucker type, and made more horsepower then the store bought ones.  I have never seen a 2"super sucker lose power on a 4V intake.  Joe-JDC

[plovett]

The cloverleaf style spacer always seems to get left out.  Mine works good.

[fryedaddy]

i took my 1 inch wood laminated open spacer off today.me and my son went for a ride.we both agreed that it felt more responsive on take off.thats the only spacer i have so i guess i will buy a 4 hole of some kind,supersucker,etc