Performer RPM Air Gap vs. Victor Jr. Intakes
02-10-2003, 09:52 PM
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Performer RPM Air Gap vs. Victor Jr. Intakes
My new setup will have AFR 195cc heads milled to 64cc chambers and a Comp XR282HR cam (230/236 @ .050, .510/.520 lift). My question is, should I go with the Edelbrock dual plane Performer RPM air gap manifold, or the Edelbrock single plane Victor Jr. manifold? I understand that the RPM range on the Performer is 1500-6500, and the Victor Jr. is 3500-8000, but which one will turn out better times at the track? On desktop dyno, the single plane gives me more power from 3500 on up than the dual plane does. I will probably be shifting at around 6500 RPM on my 700R4. My goal is low 12s, possibly 11s. I have the traction covered, and I will be getting a new rear end soon. Any help/suggestions would be greatly appreciated. Thanks in advance.
02-10-2003, 11:05 PM
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Car: 82 Z28
Engine: Al LT1 headed LG4 305
Transmission: TH350
Axle/Gears: 3.73 posi with spacer
I hear the Air-gap is the best all-around intake out there.
02-11-2003, 09:23 PM
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Hot Rod magazine called the performer RPM intake the best intake out there. Unless you are thinking of spinning your motor to 8000, and having a stall converter at 3500 get the performer RPM, it gives you a much more streetable air flow.
02-11-2003, 11:45 PM
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Car: 2006 Silverado 1500
Engine: 5.3L
Transmission: 4L60E
it is correct, the performer rpm is possibly the best street intake out there, but many test's have shown the victor jr. to have within 1 to 2 % difference in peak torque and around a 3 to 5 % gain in hp. this is something you have to see dyno numbers on rather than reading the sales add's, individual tests (non comparison), or just rpm range. they do make a few different victor jr.'s and quite often the torque can be made up with a carb spacer. as for the stall, i'd assume if he's planning to run them time's he's not running the saturday night special converter. it's your call, i'd just say check around at some dyno numbers of both. you'll find the victor jr. isn't as bad at low rpm as some might think.
02-12-2003, 04:48 PM
#6
I switched from a Victor jr to an RPM airgap intake and took about .2 sec off my 1/4 mile time with my combo. I could feel a difference in low and mid range torque with the RPM airgap. But I'm using a milder cam, hydraulic roller 222/230 @.05. I'd say go with the RPM Airgap unless you are planning on revving over 6500 rpm's and are running a low gear.
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