Edelbrock performer rpm VS. Edelbrock performer rpm AIR GAP
Thread Starter
3rd Gear Member
Joined: Dec 2005
Posts: 755
From: North Idaho
Edelbrock performer rpm VS. Edelbrock performer rpm AIR GAP
Thinking about upgrading my intake manifold from a Edelbrock performer to a Edelbrock performer rpm. Does anyone have a opinion on the newer version "performer rpm air-gap"? I'm wondering if its worth the extra $$$.
http://store.summitracing.com/partde...5&autoview=sku
http://store.summitracing.com/partde...5&autoview=sku
http://store.summitracing.com/partde...5&autoview=sku
http://store.summitracing.com/partde...5&autoview=sku
Gentleman's Relish
Joined: Feb 2005
Posts: 13,188
From: AZ
RE: Edelbrock performer rpm VS. Edelbrock performer rpm AIR GAP
If you have the clearance for it, in theory the Air Gaps would produce more HP on the same setup. I'd have to see a dyno run though to really say whether the gain is worth it.
1st Gear Member
Joined: Jun 2006
Posts: 89
From: Kansas City
RE: Edelbrock performer rpm VS. Edelbrock performer rpm AIR GAP
It is all about the COMBO!! If your engine has the right parts the Performer RPM air gap will be an awesome choice. If your motor only makes power up to 5,000 then the regular performer is the way to go. If your power band is 6,000+ then the RPM or air gap will be the hot ticket for you.
Thread Starter
3rd Gear Member
Joined: Dec 2005
Posts: 755
From: North Idaho
RE: Edelbrock performer rpm VS. Edelbrock performer rpm AIR GAP
Thanks for the responses. I believe I have a combo that can utilize this manifold. I was/am looking for someone to tell me they had experience with the thing and that its something of a gimic and/or just not worth it.
1st Gear Member
Joined: Jun 2006
Posts: 89
From: Kansas City
RE: Edelbrock performer rpm VS. Edelbrock performer rpm AIR GAP
ORIGINAL: Smothers
Thanks for the responses. I believe I have a combo that can utilize this manifold. I was/am looking for someone to tell me they had experience with the thing and that its something of a gimic and/or just not worth it.
Thanks for the responses. I believe I have a combo that can utilize this manifold. I was/am looking for someone to tell me they had experience with the thing and that its something of a gimic and/or just not worth it.
If your combo will work with it then just buy the Air Gap and be done.
Thread Starter
3rd Gear Member
Joined: Dec 2005
Posts: 755
From: North Idaho
RE: Edelbrock performer rpm VS. Edelbrock performer rpm AIR GAP
Cool EB, I appreciate your comments/suggestions.
ORIGINAL: EricButler
The Air Gap manifold has been proven time and time again to provide a cooler intake charge since the runners are separated from the lifter valley. Now your not going to feel this in the seat of the pants I can tell you that. It has been proven to provide in the best conditions maybe 5hp more and your just not going to feel that driving around on the street. I have ran the regular performer RPM and then I switched to the air gap. I didn't notice any gain. The main thing is that manifold looks better...LOL Now on the 351 engine the Air Gap intake is actually taller then the Regular RPM for the 351 engine so there is a bigger difference in performance there with that set up. But on the 302 the RPM and the Air Gap are the exact same height so the runners are the same.
If your combo will work with it then just buy the Air Gap and be done.
ORIGINAL: Smothers
Thanks for the responses. I believe I have a combo that can utilize this manifold. I was/am looking for someone to tell me they had experience with the thing and that its something of a gimic and/or just not worth it.
Thanks for the responses. I believe I have a combo that can utilize this manifold. I was/am looking for someone to tell me they had experience with the thing and that its something of a gimic and/or just not worth it.
If your combo will work with it then just buy the Air Gap and be done.
Thread Starter
3rd Gear Member
Joined: Dec 2005
Posts: 755
From: North Idaho
RE: Edelbrock performer rpm VS. Edelbrock performer rpm AIR GAP
Changed my mind after talking to a mechanic friend. Since I have a toploader (no 5th gear) and put many highway miles on the car, I am wanting to change the diff. gears to 3.25 from 3.50. And since the performer RPM has a higher rpm powerband, I would be a dog off the line with 3.25 gears and a intake that has a powerband that starts at 1,500 rpms. I think I will still go with the "air gap", but on a performer intake.
Joined: May 2006
Posts: 24
RE: Edelbrock performer rpm VS. Edelbrock performer rpm AIR GAP
Skip changing the rear gears and change the toploader to a 5 speed and go with the RPM or RPM airgap. The regular performer isn't a whole lot better than a stock 4bbl intake. You don't want the power to start kicking in really good until the RPM's are up anyway.
