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I was discussing this with my dad and he brought up a good point. Having a larger diameter exhaust, the air cools down faster while flowing through your pipes...thus becoming more dense. Dense air is heavier and so is harder to push all the way out the entire exhaust system.
Yea, If you lost horsepower and torque with a 3-inch exhaust...why would people use cutouts when they're at the track? That would be even less back pressure right?
when my cut-out is open i feel like i lose low end tq...but when i shut it it seems like i get it back..is this possible or does it just seem that way?
it's been discussed. Your torque is still there, but moved up in the powerband. You do lose the torque in the low end, but the torque is still there, just not in the same RPM range.
after reading more into "exhaust scavenging", I think I get it. With the stock exhuast, your car is actually better at sucking the burnt up exhaust out of your cylinders at low RPM due to smaller diameter tubing. If you upgrade to a larger diameter tubing, your car will actually not scavenge exhaust out as well at low RPM, but will be MUCH better at scavenging exhaust out of your cylinders at high RPM. So you DO make more power, it's just at a higher range. I hope that's right, because I'll be confused as hell if it isn't. If this is wrong, someone correct me.
so i could compare i guess...hell idk lol anyway im guessing im gonna lose 1/8th mile time but get a better 1/4th time? what kinda gains or loss do u get at the strip?
so having a stock 3.8 and then putting a 3-inch exhaust and high-flo cat on it would slow take-off noticibly? i have a stock y87 and was considering that setup but would i lose take-off (one of my car's biggest strengths)?
backpressure is a myth with a proper setup.. if you have the power to support completely free flowing, then backpressure does not play a role. for example, the v8's can have true duals 3" with little bullet bufflers and their car can handle it w/o any major modifications..
if you did that on a close to stock v6, youd be in for some power loss.
Its been a while since I've been on the forum. Hope everyone is doing well. I still have my camaro! Unfortunately, the slave cylinder and clutch has went...
been a while but looks like i'm back in the game thanks to my brother. he went and bought an'02 bird, and since i'm a technician at the nissan place...
3 weeks ago
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