no low end torque!!!

i have cleaned my throttle body, put on a high flow cat, greedy exhaust and am still noticing that there is no low end torque! after 2500 rpm's its got it. i need the take off. am i the only one with this problem? i got a 2.0 turbo motor on the way but i would like to get this one running strong for back up. any help would be great!!!

You have a nonturbo 2g?

Underdrive pulleys might help.

eh he just said he put in a high flow cat back exhaust. Theres his problem lol. Because if Im not mistakes you need a bit of back pressure to get decent torque in those na eclipse engines correct? And also you just put on exhaust which is pointless with out an INtake to let more air in. Get a cheap cold air intake or make your own. Sell that high flow cat and get one with more back pressure. thats all I can think of. PUlleys will help but that be pointless to invest that money when your gettin ga new engine.get an afc and fuck with your air fuel ratio. Ive always liked the Apexi afc. And you can use it witht he new engine youll recieve.

Like Joe said are you a NT, cause I don't think a turbo can really lose low-end, unless you have a leak somewhere.

is after 2500 still consider low end?
either way, when I installed my catback, my "low end" didn't feel "right" anymore. you sacrifice it for high end

ok, first of all is this guy a 420a or a 4g63? by the 'i got a 2.0 turbo on the way' i would venture to guess that he is a 420a and is in for a very rude awakening when he tries to put in a 4g63. either that or he is replacing a perfectly good 4g63. if he does infact have a 4g63, it's probably just lag. and if is a 420a, i would have to say that the Exhaust Gas Velocity is being fucked with by the hi-flow and exhaust being too large. remember that back pressure is bad no matter what [thanks ashah000 for the schooling on that topic!].

we need more info on what you got right meow.

If it is not that big of a loss who cares.. when are you at 2500 rpms in a race.
And if it is a NT, and you have a 3" exhaust then yea get rid of it and put a 2.5" on.

Backpressure (http://www.automotiveforums.com/vbulletin/showthread.php?t=13199&page=1) This is the best link I have found on backpressure. Have fun :smile:

didnt i just say that the big exhaust was causing not enough back pressure o_O?

didnt i just say that the big exhaust was causing not enough back pressure o_O?

Yea you did. But you DON'T want any backpressure

Yea you did. But you DON'T want any backpressure
I think the thread starter is turbo deprived, in which case you DO need backpressure.

lol thanks lando for backing my answer up.

I think the thread starter is turbo deprived, in which case you DO need backpressure.

No. Backpressure is ALWAYS bad.

Here this is what Kevin had to say if you don't believe me...
http://www.automotiveforums.com/vbulletin/showthread.php?t=202335&highlight=backpressure

Basically we are in agreement, but you are arguing semantics.

Smaller piping = better low end...there, no terminology to get twisted. ;)

Smaller piping = better low end...there, no terminology to get twisted. ;)

True. But smaller piping = worse high end.

And I would rather have high end.

High end in an N/T is like tits on a boar; useless. :p

I do love you N/T guys, though. Don't get mad :)

LOL.. When I put my header, test pipe, 2.5" cat back in I did feel a slight low end loss and I stress SLIGHT. But the high end did feel a lot better..

Of course this is off my butt dyno :p

now reading this post makes me think, how do you know if your low end RPM is low. is there a number that can help me measure?. my high end is very good i know that. just don't know if low end is up to the paste.

You will know if you have to wait to accelerate when under 3500 rpms. It's a pain in the ass.

what do you mean?... there is a delay between throttle and actual movement?

If you notice that when you start off and you put your pedal to the floor, it would take longer to go from 1000 rpms to 3000 rpms than it would to go from 3000 to 5000 rpms.