3" exhaust = POWER!!
Are pefect.
Senior Member
Posts like a Camaro
Joined: Jan 2004
Posts: 1,166
Likes: 1
Originally Posted by 2000SilverBullet
Yes, I would have to agree with that.
More power usually means more heat and frictional losses so the power loss increases as a percent.
More power usually means more heat and frictional losses so the power loss increases as a percent.
nah, i'll just let this one go...
Junior Member
Joined: Jun 2002
Posts: 0
Likes: 0
would now be a good time to throw in that your clutches work because of the extreme heat of the fluid between them?
I was referring to mechanical components like gears, cams, chains,....and sliding components that lose power due to increased rpm that usually results from hp increases.
Most high hp is gained above factory limits of 5000-5500 rpm.....like 5500 - 7000 rpm.
Senior Member
True Car Nut
Joined: Jan 2003
Posts: 3,734
Likes: 0
From: Bloomington-Normal, IL 1997 SE
Originally Posted by mkaake
Originally Posted by 2000SilverBullet
Yes, I would have to agree with that.
More power usually means more heat and frictional losses so the power loss increases as a percent.
More power usually means more heat and frictional losses so the power loss increases as a percent.
nah, i'll just let this one go...
Our cars have plenty of torque, upgrading to a bigger exhaust on a SC car wouldnt hurt. You want to get that hot air out of there as fast as possible.
Senior Member
True Car Nut
Joined: Jan 2003
Posts: 3,734
Likes: 0
From: Bloomington-Normal, IL 1997 SE
Originally Posted by mkaake
Originally Posted by 2000SilverBullet
Yes, I would have to agree with that.
More power usually means more heat and frictional losses so the power loss increases as a percent.
More power usually means more heat and frictional losses so the power loss increases as a percent.
nah, i'll just let this one go...
Our cars have plenty of torque, upgrading to a bigger exhaust on a SC car wouldnt hurt. You want to get that hot air out of there as fast as possible.
Senior Member
Posts like a Northstar
Joined: Jun 2004
Posts: 555
Likes: 0
just to put in my two cents . . . i have read a few reports done in HOT ROD and another performance magazine that did dyno tests on exhausts. as many here have already mentioned going big is not necessarily the way to go. depending on the engine size and the horsepower (volume of air expended really) the exhaust was supposed to be from 2.5 in to 3 in. it seem the 3" was only needed for the really BIG stuff, and even then there were trade offs with torque and where to put the H-bar cross overs for evacuation.
and as a last note . . . Running OPEN headers may sound like a race car but it kills your tuning UNLESS you set it up that way. some backpressure and crossover evacuation is a good thing for free flowing exhausts.
and as a last note . . . Running OPEN headers may sound like a race car but it kills your tuning UNLESS you set it up that way. some backpressure and crossover evacuation is a good thing for free flowing exhausts.
Thread Starter
Junior Member
Posts like a Ricer Type-R
Joined: Dec 2004
Posts: 15
Likes: 0
As far as the horsepower gain from the 1.9 rockers.......I installed these prior to the end of the year and before the exhaust went on. Taking it to the track, before the rockers my MPH, a good reflection of HP, was 97 to 97.5. After the rockers were put on, it did not change, I never even hit 98 MPH. I equate this to the added lift needed something else to be done to be beneficial. I have not gone to the track yet since the exhaust has been done(I'm in Michigan) but in April we will see. So my conclusion is next to no gain with the rockers without a supportive mod to help get the air out as your increasing flow at the head. However, the big exhaust would never pick up this type of power on its own wither, hence the two compliment each other well.