Vortex Rammer
Melting Slicks
Joined: Jul 2001
Posts: 3,284
Likes: 3
From: Southwest Florida
Originally Posted by c6nut
I returned the Vortex I purchased. I lost 3 HP on the DYNO. I think it was way to much for no gain. Fit and finish was terrible then but I saw that there were modifications for the newest product. I will do the Callaway product this summer.
Edit: I went back and looked it up. The model you used was the old one with the vent hose upstream to the MAF which caused A/F ratio problems. The only reason you didn't get the check engine light on the dyno and got it two hours later is because the computer had not yet settled on LTFT values. Bottom line is that you dynoed the car when it was being crippled by this problem which I'm sure is why you saw no gain (or a loss). Not your fault obviously but that issue has been fixed on the current Vortex by simply correcting the routing of the PVC vent. Fit and finish were no problem on the unit I ordered a week or so ago.
Mike
Last edited by mikeyc6; May 18, 2005 at 10:09 AM.
Racer
Joined: Mar 2003
Posts: 348
Likes: 44
From: Kansas
Originally Posted by yellow1
What's so special about the Calloway and Vortex that they have not encountered OR were able to overcome this issue? Did they do some "magic" with the computer?
It's pretty common sense. Other bolt-ons increase airflow through the engine (and therefore the MAF) without freaking out the computer. Even other intakes have no problem. It's obviously a problem with Jim Hall's design, and the only major difference is the location of the MAF.
FWIW- I rarely recommend taking the screen out of a stock GM MAF. I run a stock screened MAF on my Camaro, and it makes 720 at the flywheel.
-Chris
Burning Brakes
Joined: Aug 2004
Posts: 945
Likes: 0
From: Bloomingdale IL
Originally Posted by mikeyc6
I'm going from memory here, but aren't you the one who had trouble with the check engine light after the install? I remember at the time that there was some question about whether or not those issues were affecting performance and allowing the Vortex to operate properly (and therefore receive the full gains).
Edit: I went back and looked it up. The model you used was the old one with the vent hose upstream to the MAF which caused A/F ratio problems. The only reason you didn't get the check engine light on the dyno and got it two hours later is because the computer had not yet settled on LTFT values. Bottom line is that you dynoed the car when it was being crippled by this problem which I'm sure is why you saw no gain (or a loss). Not your fault obviously but that issue has been fixed on the current Vortex by simply correcting the routing of the PVC vent. Fit and finish were no problem on the unit I ordered a week or so ago.
Mike
Edit: I went back and looked it up. The model you used was the old one with the vent hose upstream to the MAF which caused A/F ratio problems. The only reason you didn't get the check engine light on the dyno and got it two hours later is because the computer had not yet settled on LTFT values. Bottom line is that you dynoed the car when it was being crippled by this problem which I'm sure is why you saw no gain (or a loss). Not your fault obviously but that issue has been fixed on the current Vortex by simply correcting the routing of the PVC vent. Fit and finish were no problem on the unit I ordered a week or so ago.
Mike
