View Single Post
Tyson Schmidt Tyson Schmidt is offline
PRO Motorsports
 
Tyson Schmidt's Avatar
 
Join Date: Nov 2001
Location: Burbank, CA
Posts: 4,337
Quote:
Originally posted by KobaltBlau
I believe he's labeled it "Super-S"

btw, that website is his business.

Tyson, are people really running a Mod S with a 3.2 intake for example? I would have thought the lobe centerlines/duration would make for rotten low-end response, lots of waves bouncing around in the shared manifold.
Well, there's no way you could get a decent idle with no stalling with a flapper airflow meter, or even a mass-airflow sensor.

But Noah is using a speed-density system with a MAP sensor. It may work with the Mod-S cam, if he uses a restrictor inline to the MAP sensor.


We used Mod-S cams in a 3.2 with the flapper box for a race-only car, and actually got it to idle decently, and have good throttle-response and driveability, but it would fall off idle and stall every time you blipped the throttle. We simply raised the idle to 1400 rpm with Steve Wong doing the chip re-programming for us.
__________________
R-Gruppe member #382

'69 911E coupe' 3.2 (retired 911-Spec racer)
'72 911T Targa
2004 GT3
Old 02-16-2005, 11:37 AM
  Pelican Parts Technical Article Directory    Reply With Quote #36 (permalink)