intake manifold - The 1947 - Present Chevrolet & GMC Truck Message Board Network

82c10 · 06-16-2005, 04:40 PM

is the performer rpm air-gap worth the $70 more than the performer rpm

SSC's76 · 06-16-2005, 07:27 PM

Depends if you even need that kind of flow in the first place. There has been issues of fuel pooling with the air gap manifold on a DD in stop & go traffic on cooler days. If you engine makes power to 5500 and you have $70 extra bucks go for it.

82c10 · 06-16-2005, 11:10 PM

SSC's76 my cam is rated to 6200, i don't know if i should spend $70 more

SSC's76 · 06-16-2005, 11:39 PM

Quote:

Originally Posted by 82c10

SSC's76 my cam is rated to 6200, i don't know if i should spend $70 more

Isolating the intake from the lifter valley may seem like somthing new but its OEM old school stuff. My 56 Buick has an air gap manifold on it from the factory, doesent make it fast. What I'm getting at is there are better ways to controll heat transfer. You may not be able to pop you hood and show the

of an air gap but if your more serious about power then looks just get the non airgap RPM, then call Jegs for a #71025050.

84slopwaggin · 06-16-2005, 11:41 PM

The performer RPM might be a good choice. Not a bad intake for $135. It's rated from 1500-6500 rpm. IMO the Air Gap manifolds would be great for street/strip combinations that would see mostly weekend action. Their design would only be noticed on a et/mph slip or dyno sheet mainly. My .02

82c10 · 06-16-2005, 11:48 PM

84slopwaggin, that is what i am building the truck for, to take to the strip ever so often on the weekends

gldevall · 06-17-2005, 08:19 AM

You may want to ask this over in the Engine section also. IIRC there was some discussion about this same topic months ago.

SSC's76 · 06-17-2005, 02:21 PM

Quote:

Originally Posted by 82c10

84slopwaggin, that is what i am building the truck for, to take to the strip ever so often on the weekends

Then the #710-25050 and the standard RPM will make more power. Trust me on this one.

WakBordr7387 · 06-17-2005, 03:51 PM

From what ive heard, the real difference between the two is depending on the weather. In colder weather, I have heard that ice will form under the air gap, and cause harder cold starting and running, while this doesn't happen on the performer. So if it stays mostly warm where you live, I would go with the airgap. but if its cold alot, I would go with the performer.

*rage'nrat638* · 06-19-2005, 12:23 AM

buy this one i listed like brand new.....30.00 plus shipping......
http://cgi.ebay.com/ebaymotors/ws/eB...MESE%3AIT&rd=1 http://cgi.ebay.com/ebaymotors/ws/eB...MESE%3AIT&rd=1

06-16-2005, 04:40 PM	#1
82c10 needin' money Join Date: May 2005 Location: Chickasha, Oklahoma Posts: 1,106	intake manifold is the performer rpm air-gap worth the $70 more than the performer rpm

06-16-2005, 07:27 PM	#2
SSC's76 No No Join Date: Jun 2005 Location: Pueblo Colorado Posts: 1,781	Depends if you even need that kind of flow in the first place. There has been issues of fuel pooling with the air gap manifold on a DD in stop & go traffic on cooler days. If you engine makes power to 5500 and you have $70 extra bucks go for it. __________________ 1976 Custom Deluxe SWB Med FMB.3/4 Drop. Gen VI 454, Muncie HD 3 speed With Modified OE Hurst Shifter, 3.73 12 bolt, GMPP HO roller cam, Hooker headers, Performer intake with modified Q-jet, Accel distributor. Best 1/4 12.3 @108. Funnest run 19.84 @88 full 1/4 mile burn out. 1997 K1500 ext cab 5.7 stock except muffler

06-19-2005, 12:23 AM	#10
rage'nrat638 Account Suspended Join Date: Mar 2003 Location: THE FALL GUY CHICAGO IL Posts: 5,883	intake.... buy this one i listed like brand new.....30.00 plus shipping...... http://cgi.ebay.com/ebaymotors/ws/eB...MESE%3AIT&rd=1 http://cgi.ebay.com/ebaymotors/ws/eB...MESE%3AIT&rd=1

06-16-2005, 11:10 PM	#3
82c10 needin' money Join Date: May 2005 Location: Chickasha, Oklahoma Posts: 1,106	SSC's76 my cam is rated to 6200, i don't know if i should spend $70 more

06-16-2005, 11:41 PM	#5
84slopwaggin Registered User Join Date: Apr 2005 Location: Ar Posts: 558	The performer RPM might be a good choice. Not a bad intake for $135. It's rated from 1500-6500 rpm. IMO the Air Gap manifolds would be great for street/strip combinations that would see mostly weekend action. Their design would only be noticed on a et/mph slip or dyno sheet mainly. My .02

06-16-2005, 11:48 PM	#6
82c10 needin' money Join Date: May 2005 Location: Chickasha, Oklahoma Posts: 1,106	84slopwaggin, that is what i am building the truck for, to take to the strip ever so often on the weekends

06-17-2005, 08:19 AM	#7
gldevall Registered User Join Date: Mar 2003 Location: Walker, LA Posts: 2,925	You may want to ask this over in the Engine section also. IIRC there was some discussion about this same topic months ago. __________________ Gary -1986 SWB: lowered 4/6, SOLD!!! -Best 1/4 mile: 14.51 @ 91.01 MPH -2001 Pewter Tahoe, billet grill, Corsa Sport Cat-back, K&N FIPK SOLD!!! -2004 Z-71 Extended cab with a flowmaster, BDS 6.5", 3" BL, 35x12.5x18 Trail Grapplers on Pro-Comp 18x9 wheels

06-17-2005, 03:51 PM	#9
WakBordr7387 Registered User Join Date: Jun 2005 Location: Corpus Christi, TX Posts: 45	From what ive heard, the real difference between the two is depending on the weather. In colder weather, I have heard that ice will form under the air gap, and cause harder cold starting and running, while this doesn't happen on the performer. So if it stays mostly warm where you live, I would go with the airgap. but if its cold alot, I would go with the performer.



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