Re: NE tricks that can be done on a Performer RPM intake?
[Re: domingo]
#1119313
11/22/11 06:18 PM
11/22/11 06:18 PM
|
Joined: Jan 2003
Posts: 9,872 Weddington, N.C.
Streetwize
master
|
master
Joined: Jan 2003
Posts: 9,872
Weddington, N.C.
|
Bolt it down very carefully. Have a beer and admire it for 5-10 minutes, then take it off and replace it with a Holley Street Dominator! Just kidding, the RPM is a great all around manifold on a 440. There are a few runners in the lower plenum that I massage and I tend to run a long strip of emory through all of the inside and outside runner walls and to the plenum to remove any casting burrs inside. You can do some deep porting (which includes enlarging the plenum halves) but for the effort it's much easier to work on (and yield more out of) an SD. After running the Indy 2D (ported to full Max Wedge) I think it's a better power and torque producer than both of them but it's difficult to get your hands on a non core-shifted casting. For a 440 the RPM is as close as you can get to a no-brainer, it will work very well right out of the box with a 750-850 double Pumper. And unlike the SD , the RPM even works great on an otherwise stock motor with highway gears and stock stall. 440's are easy torque producers, it's amazing they ran as well as they did with the stock manifold with all of its Acute runner angles.
Last edited by Streetwize; 11/22/11 06:27 PM.
|
|
|
Re: NE tricks that can be done on a Performer RPM intake?
[Re: domingo]
#1119317
11/23/11 09:27 AM
11/23/11 09:27 AM
|
Joined: Jan 2003
Posts: 13,354 Marion, South Carolina [><]
an8sec70cuda
I Live Here
|
I Live Here
Joined: Jan 2003
Posts: 13,354
Marion, South Carolina [><]
|
I had one on the 509 cammed, iron headed 440 that I had in my cuda years ago. It ran 11.40s at 117 mph at 3700#. I found a 1" open spacer made a little more power. I did some mild blending of the flat spots at the top of the flange after I put the spacer on, but that was it.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 18 spline 4 speed, Dana 60 '71 Demon, 340, low gear 904, 8.75 '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
|
|
|
Re: NE tricks that can be done on a Performer RPM intake?
[Re: Streetwize]
#1119320
11/23/11 06:17 PM
11/23/11 06:17 PM
|
Joined: Jan 2003
Posts: 27,421 Balt. Md
383man
Too Many Posts
|
Too Many Posts
Joined: Jan 2003
Posts: 27,421
Balt. Md
|
Quote:
Bolt it down very carefully. Have a beer and admire it for 5-10 minutes, then take it off and replace it with a Holley Street Dominator!
Now that is funny. Sorry but that made me laugh. Ron
|
|
|
|
|