everyone says that axleback exhausts only give minimal hp gains. on the trd exhaust i heard 2hp. that's what i thought was about right for an axleback. so why are companies like greddy, dc, etc making only axlebacks for the tc? i mean, the same evo2 exhaust for a diff car such as the g35 is a real catback and would probably give the hp numbers greddy claims. so when you ask greddy what kinda numbers the exhaust is putting out for the tc, they still say 6-8hp. is this possible-even in theory? i realize that making the evo2 a full catback for the tc would jack up the price, but the evo2 for the g35 is around $1000 and it's a dual exhaust. couldn't they have done a real catback on the tc for let's say between $700-$850? it's the same thing with single cannister dc exhaust. catback exhausts that are turned into axlebacks on our car. i know what some people are gonna say-look where the cat is on the tc, so it's technically a catback. BS. we all know what's really meant when we talk about catback exhausts for the tc. these companies are claiming that on a tc these axlebacks are still going to put out 6-8hp, has anyone done or seen a dyno of one of them on a tc?

 

I've seen super street do dyno's... I dont remember what car.. but one expensive axleback made 2 horsepower , despite its $800 price tag.. lol...

 

Theres dynos done on just axlebacks on www.clubsciontc.com. I would post exact links but the sites acting wierd currently.

 

+2, +8, heck +15, tC is still slow, so y bother? I guess every little bit helps. :D

 

creative compacts full catback exhaust or dc exhaust are really good. they have bigger dyno results....

get a weapon-r damper kit, 0-30mph in 2.4sec. and stock is 2.9sec. thats a huge jump!

 

the reason why companys are not making a cat back exhaust is becuase the kit would not be a bolt on. The last set of bolts on the car are where the axle is, and the next set of bolts is before the cat... so that means if they made a cat back you would need to cut your exhaust and weld on a new exhaust.


____
/ __
/ /
\ / / /
\/ / /
o______________------------_________________________________o___/ /
o______________ ________________________________ o _____/
------------ /\
/\ (bolts)
/ \
(it would need bolts around here for a good cat back)
do you kind of get what im saying???

 

lol... yeeeah HUGE jump....

.5sec could be loss or gained by shifting and other variables. 1.4sec would be a diff.

 

if toyota made the tC with a flange after the secondary catalytic converter than you would see true catbacks all over the place. But some toyota engineer who thought he was cool decided not to put a flange after the secondary cat, so you are now stuck with axlebacks from the major brand companies. Every mechanic has an engineer they hate,

 

Huh??? .5 sec is a fairly large jump!! Not sure what you are expecting. Now, if they did one run before and after then their numbers may be off... but if they are truly actualizing a .5 sec increase (measured by an average of many runs) then that is definitely significant.

 

its a common rule that .1 seconds= 1 car length at the end of the 1/4 mile. thats 5 car lengths throught the traps which is pretty significant. Not to mention the better your 60ft, the better the 1/4 mile time. .5 off your 60 ft is HUGE if you are doing a lot of racing.

 

thats the point. Were we talking about track racing? ... In real world driving its not gonna give you that much.

 

Also i don't know many races that have 1/4mile 0-30mph racing.

 

Well every bit helps, and when youre talking 0-50ish on the street, .5 seconds is a big deal. Thats 1/2 to 3/4 car lengths by the end of an intersection

 

it's all good. I don't care.

 

wow motozen instead of arguing y dont u just agree that its pretty awsome to have an increase instead of tryin to find ways to say it suks or doesnt matter

 

omg your grammar sucks lol. Learn to spell too, hehe, I had to read your post a few time to understand it.

 

ok have any of you measured the pipe on the stock system, regardless of the flange, the pipe is 2 1/4 inch, like every catback out there that you pay big money for, most pay more for 2.5inch. WE have a good stock size piping, where as a civic has a pea shooter...why replace pipe with the same size pipe? ok then...get your ruler out and go measure.

 

well... you do have to pass 30mph to reach 90 mph... so reaching 30 sooner will help just the same... pretty simple concept

 

Ok, time to get poindexter on your ignorance...

90 miles per hour (roughly the quarter-mile speed at the end of the track) divided by 60 is 1.5 miles per minute.

1.5 mile per minute times 5280 is 7920 feet per minute.

7920 divided by 60 is 132 feet per second.

132 feet times .5 seconds is 66 feet.

Last time I beat someone by 66 feet they called it a KILL.

Yes, .5 seconds is VERY significant.

 

that would be great if that perticular tC racing is that consistant. I've seen cars do quarters with fluxuations of about .5 seconds.

So you wasted all that time with your elementary adding to prove what?
You are not adding driver's error which is a big part of racing. According to your calculations 'roughly 90mph' is a bold variable. A 16 year old driver with limited driving experience can drag like the best of them to obtain your #s? Right. Your numbers are not stable.

Quit hijacking the thread. This is not a drag racing post. Like I said, I don't care about 1/4 times because 99.15252566234% of tC owners x 44 - 524235.553 = Most don't care to abuse a little car like ours, or really appreciate .5 second gains from beating on their car, let alone go to a track to test .5 seconds and 66 feet slamming the engine to poop for what? The only tCs i know i.e. that 12 second tC with all it's glory and that tC dragster maybe might appreciate it but for the rest of us... Give us our SC and shave off a second in stock 0-60 times and then you are butt dynoing a smile from everybody entering on ramps...

Hang out on a MOPAR site and go buy a souped up charger, roadrunner, or a viper if you want to know how much difference .5 seconds will give you in 1/4 times....