I was thinking of throwing a cut-out on my car just to be stupid loud. Do you think i would loose power from loss of back-pressure? or would it really matter since im going to be s/c'ed?
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05-08-2009
I was thinking of throwing a cut-out on my car just to be stupid loud. Do you think i would loose power from loss of back-pressure? or would it really matter since im going to be s/c'ed?
05-08-2009
The more flow the better. Back pressure is over rated to a certain point. You don't really loose power. It's just the power band is shifted slighlty. You loose some of the low end TQ to a certain extent.
Go for it. And post a clip when your done.
05-08-2009
cutouts are stupid...have you ever driven your car straight off the downpipe? it sounds like crap and the car feels like a dog. youll hate it after about 3 minutes of driving around.
05-08-2009
This one sounds good. Loud? Well yeah. But that's what he wants.
05-08-2009
where do guys usually mount them?
05-08-2009
at the downpipe, before the cat.
05-08-2009
In there? anyone happen to know if it fit in there and just weld up? or would it have to be hacked up and extended some?
05-08-2009
I wouldn't do it. Think about it. You get your car tuned then you open that thing up and run lean up top due to the sudden increase in flow.
I agree. Cutouts are stupid. The catback flows just fine and will allow your tune to be more consistent.
05-08-2009
hmm i didn't think about it that way, you have a good point. I definitely don't want to go too lean. Ill just stick with the regular pipes then.Originally Posted by Sabrewings
05-09-2009
yea, i was going to do the same thing you were thinking about, but I decided against running an electric cutout.... I'm going for the quietest exhaust I can have... thought a cutout would be nice for when i wanted to be stupidly loud...
05-09-2009
My buddy Kevin has a QTP on his GTP. I know the quality is bad but he only runs it with race gas and closes it after the 1/4. Only other time he has used it was at Quiktrip when a bunch of ricers wanted to play. After he revved it they backed down. I'd say it is a cool intimidation factor, but...it isn't really practical either. If you had a turbo I'd understand...WRX's, SRT-4's, Evo's...things like that get them basically bone stock and gain 20-40whp...letting that turbo breathe
05-09-2009
^where are the vids for sound please?
05-09-2009
That was his first 13...good thing about the cutout is that since it kills your low end torque (he has 3.29's) he was able to give it more go off the line and he had a 2.0 60' on street's...with these mods...and race gas...
Custom FWI w/ K&N, QTP 3" Custom Exhaust into Flowmaster 40's: No Cat or Resonator, ZZP MPS: 3.4", GBP inc. Ported M90, GBP Inc. Ported L67 TB, ZZP T.B. Spacer, ZZP T.B. Heat Shield, DHP V1.0 PCM, Triple Edge Transmission w/ 3.29's, 160* T-Stat, NGK's TR6's, MSD Coil Packs, MSD 8.5mm Wires, Autozone Solid Motor Mount, Autozone Solid Transmission Mount, ZZP Poly Upper Mounts, GMPP FSB, 12" Brake Upgrade.
05-09-2009
such an ugly sound. i have driven around with it straight off the downpipe. it is nasty.
05-09-2009
An XP Cam with the catback off sounds pretty b*tchin at idle
05-09-2009
i ran a TEP can straight off my TOGs. mean? yep. loud? yep. sounds good under any throttle? nope.
05-10-2009
i like the sound where u cut the pipe right after the ressy. sounds mean!!
hogan 3inch DP u bend delete ,180*tstat, autolite 104s, LED interior, 4" FWI, 2000watt system, bullitt rims, zzp pistons, pems, alt rewire, thrush muffs, 3.4 zzp mps, transgo shift kit, triple edge performance trans. autometer triple pod :SOON: urlosn HPT PCM tune, HEADERS, 1.9's
05-10-2009
why not tune cutout open then???
05-10-2009
Then you'd run pig rich any time it was closed.
Cutouts are good for track cars. They're for compensating for small penises otherwise.
05-10-2009
I have to disagree with your theory Fuel related to the cutout being Opened/Closed.
I have a DMH electric cutout on my SSEI with headers and a catback, wideband, DHP, and all the supporting. My Fuel Trims, Wideband, IPW, and MAF are the same while scanning at the track with the cutout opened or closed. Also there is no difference in the WB02 reading while cycling the cutout opened/ closed while driving..
While in theory your statement is true, its not true in the real world application
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