F1-A Procharger: 4 ; QTP e-cutouts: 0

[charonblk07]

I have discovered that the QTP electric cutouts can't handle the new exhaust pressure of the F1-A Procharger. I blew out the set I had been running for 2 years just before the new blower went on so I replaced the butterfly valves with the kit from QTP. Well, new blower making 16 psi and a lot higher exhaust temps is apparently a bad combo for the QTP since I literally blew the replacement butterfly valves off so I replaced the entire assembly and bent the butterfly valves on the new cutouts in less than a month. Guess I'm going back to plane old bolt-on/off cutouts for track days only. I will miss them since I LOVE the cutouts, especially when I pull into shows or meets.

 

[Kotta390]

That's unfortunate..

Sorry to be a little side tracked but how do the cutouts do for exhaust leaks? I've always had manual cutouts and one electric one but it wasn't a QTP and it leaked all the time no matter what. That "ticking" drives me nuts.

 

[PassivAggressor]

Big boost problems.

 

[Dubstep Shep]

What do you have in the way of an exhaust system? Cats? Mufflers?

 

[Hemi450hp]

These are real men problems...haha.

Kurtis, I havent seen any updates recently. Truck running strong with the new blower? I'm ready to see you make a few passes down the 1/4 mile.

 

[Wild one]

LOL curiousity makes me ask what the hell you were up to yesterday,you broke an upper spohn arm and blew the cut-outs apart,i'm thinking you were up to some shenigans,
Time to go see Rob and see if he can fix your arm or build you some heavy duty locating arms,lol

 

[Beauregard7765]

I loved my QTP electric cutouts too but they didn't seem to like lake water too much either...

 

[charonblk07]

That's unfortunate..

Sorry to be a little side tracked but how do the cutouts do for exhaust leaks? I've always had manual cutouts and one electric one but it wasn't a QTP and it leaked all the time no matter what. That "ticking" drives me nuts.

I never had any issues with them when I was low boost or N/A until after about 2 years when one plate started not closing all the way. QTP states you need to clean the carbon deposits out every so often, which I never did, but after a little WD40 and bristle brush they sealed up just fine again.

What do you have in the way of an exhaust system? Cats? Mufflers?

1 7/8" ARH headers, cutout y-pipe, true dual 3" system with H-pipe, dual 30" magnaflow mufflers (straight through design), and dual 14" DynoMax baffled mufflers at the very back. It's a very open exhaust except for the 14" DynoMax mufflers.

I loved my QTP electric cutouts too but they didn't seem to like lake water too much either...

They don't like the wet winter months either.

These are real men problems...haha.

Kurtis, I havent seen any updates recently. Truck running strong with the new blower? I'm ready to see you make a few passes down the 1/4 mile.

I've only been driving it for 2-3 weeks now and finding the weak points apparently. At this rate I won't get it to the strip this summer, but we'll see if I can get it up for a half-assed pas on closing night or something. I still have more tuning to do with the W/M and race fuel if I'm going to drag it.

 

[Dubstep Shep]

1 7/8" ARH headers, cutout y-pipe, true dual 3" system with H-pipe, dual 30" magnaflow mufflers (straight through design), and dual 14" DynoMax baffled mufflers at the very back. It's a very open exhaust except for the 14" DynoMax mufflers.

I would guess the baffled mufflers are where your problem is coming from...

I actually split apart some chambered mufflers on my mustang. I was running like 14lbs of boost at like 550 rwhp. After I went to straight through mufflers I never had the same problem.