Pro Chamber ??'s

[FOX ROD]

Well, I'm looking in to swapping out the O/R H for a Pro Chamber on my coupe. I'm looking for performance gains not necessarily for the sound. I like the sound but it will be quieter which I really don't want but I will sacrifice for a solid power gain. Do any of you know or have any personal experience in this swap and possibly some actual dyno #'s or data? I don't want to do the swap and realize no gain. The only thing I've found so far was on another site where a Cobra owner picked up about 8 or 9rwhp and torque when he did the swap but it doesn't say what midpipe he swapped out. If you guys have anything let me know, thanks.

[mrtstang]

IMHO, the prochamber having more power is total bs. Several studies have show that even a x (some of the time) might have a 2 hp gain over an h. If anything you would think the PC would be slightly more restrictive (again splitting hairs at this point) because the box acting more like a muffler.

I asked the same question to Scott Hoag of MRT a while back, and he said the gains between any of them were minute that i would be rediculous to swap in hopes for a power gain.

[Ghost Rider]

They claim that the PC can produce more power due to it's design...specifically the chamber...the way the gas cycles in the chamber and heats up...is believed to cause a better flow and power

...now with that being said...no idea if it's true...there could be more factors to that guys dyno output like even the temperature when it was dynoed...surprisingly the cold plays a major roll in dyno testing...least up here it does cause it's ususally very humid which tends to have less hp results...

But again with the PC...I have my personal doubts that it makes that much of a difference...just my .02 though

[mrtstang]

They claim that the PC can produce more power due to it's design...specifically the chamber...the way the gas cycles in the chamber and heats up...is believed to cause a better flow and power

...now with that being said...no idea if it's true...there could be more factors to that guys dyno output like even the temperature when it was dynoed...surprisingly the cold plays a major roll in dyno testing...least up here it does cause it's ususally very humid which tends to have less hp results...

But again with the PC...I have my personal doubts that it makes that much of a difference...just my .02 though

+1 on the dyno thing. Unless the tests are performed back to back, same car, same dyno, same day, and all else being equal, i can't see how you could even accuratly compare the differences.

From a flow dynamics perspective i don't see how PC could make more power. The only thing that could "possibly" make sense to me (and if we're comparing it to a o/r h or x only) is that it could increases back pressure (because of the chamber) which could increase the power curve...not necessarily the peak numbers. With that said i would think a catted x or h would do the same thing.

I can personally tell you that my high flow h felt stronger in the mid range than the o/r x pipe that i had tried. In the hig revs, they felt similar, with the o/r x actually feeling a tad stronger only at about redline.

Also every mid pipe that i've tried felt much better than the stocker as well.

[TorchRed04GT]

Dom I have the PC and I noticed a nice little gain when I went from the stock h-pipe to the o/r PC

[Ghost Rider]

^^^it's an illusion...you think it feels more powerful cause it sounds alot better

[TorchRed04GT]

lmao yea proly

[FOX ROD]

I put a pro chamber on my old '89 which was a minimal bolt on car. The exhaust consisted of longtubes, pro chamber, and a 2.5" cat-back with Borla muffers. The car felt great but it was too quiet IMO. Thinking it was the Borlas I swapped in some original 2 chambers 40's and it was better but still not where I wanted it. The car seemed to drop off slightly power wise. Then I swapped the pro chamber for an O/R H and while it sounded great there was a definite drop in power, it felt like it lost a significant amount of torque. Again this wasn't verified on a dyno but it was definitely felt for sure. This car also had a much milder combination compared to my current car too.

[Swiss026]

Now look what I've helped start :jest:

[FOX ROD]

Now look what I've helped start :jest:

Yeah but mine can be done with one hand and the other hand holding a beer and while smoking a cigarette
while laying in a lounge chair while 2 gorgeous women feed me grapes. :groovy:

[Ghost Rider]

I put a pro chamber on my old '89 which was a minimal bolt on car. The exhaust consisted of longtubes, pro chamber, and a 2.5" cat-back with Borla muffers. The car felt great but it was too quiet IMO. Thinking it was the Borlas I swapped in some original 2 chambers 40's and it was better but still not where I wanted it. The car seemed to drop off slightly power wise. Then I swapped the pro chamber for an O/R H and while it sounded great there was a definite drop in power, it felt like it lost a significant amount of torque. Again this wasn't verified on a dyno but it was definitely felt for sure. This car also had a much milder combination compared to my current car too.

I can see that happening with the O/R pipe...I felt the same when I put the O/R on my GT...the catted helps with the backpressure...so I'm assuming the chamber helps with that also...even though the actual pipe is O/R...does that make sense? LOL

[mrtstang]

I can see that happening with the O/R pipe...I felt the same when I put the O/R on my GT...the catted helps with the backpressure...so I'm assuming the chamber helps with that also...even though the actual pipe is O/R...does that make sense? LOL

That makes total sense to me. That's why a high flow catted x or h should work just as well as a PC. I do believe it's possible for a o/r pipe to show a higher peak number on the dyno (most people want that number not realizing it's not the most important part) but to have less total mid range power.

I felt a noticable difference in the mid range when switching between my catted h and a o/r x.