low end boost?

[Acamori]

ok, so for the time being, i'm ok with how my 4-cyl DOHC performs at higher rpm, but is there a good way to get better acceleration/torque at lower rpms (up to around 3500 is what i'm thinking)? top speed isn't my primary concern, just acceleration from a stop.
thanks

[perhapsadingo8yerbaby]

I have a 95 1.6 DOHC and wanted similar perf. gains for not a ton of $$.

* Install less restrictive air filter like a K&N into your stock airbox or go all the way with a CAI to replace both your stock air filter and the airbox-- improves throttle response across the board and opens up the torque power band especially from around 2700-5000 rpm. Do this mod and you'll realize how much that stock paper filter is starving your engine's air intake capacity.

* Install underdrive crank pulley. Nice improvement in throttle response at the low end. Got mine from UR.

* Install lightweight flywheel. Haven't done this yet myself but other 1.6 DOHC UBB members report excellent results for increased torque/responsiveness in lower gears. UR sells one and a few others are out there... (Fidenza and also Indigo if memory serves.)

* Don't know how many miles on your clutch but a new one can also make a world of difference if your current one has high miles and wear. Several are out there and many opinions exist on different brands. Some ppl swear by Exedy as best performing replacement for the least money but there are also others offered for more $$ by ACT,Centerforce, etc. Do a UBB search for more info on it if interested. Lots written on this.

* Have your TB overbored by 5mm for greater air intake charge capacity.

* Consider a port/polish job on your intake manifold and if ya wanna go all the way, port/polish the cyl. head too.

<small>[ October 21, 2004, 04:51 AM: Message edited by: perhapsadingo8yerbaby ]</small>

[Acamori]

thanks for the info. the first two i'll probably do before too long. i have an auto tranny so the clutch and flywheel probably won't work (unless i'm totally missing something somewhere) and i'll have to see about the overboring.

btw, does anyone know where i can get full specs for the stock crank pulleys or am i gonna have to pull them off to find out?

[perhapsadingo8yerbaby]

From the UR Website... http://www.unorthodoxracing.com/weights.html#S

Ultra S Crank Pulley
Part# 0208102

MX-3 OEM Weight= 3lbs, 12 oz

UR Weight= 0lbs, 14.20 oz

Oh, and I made an incorrect comment regarding the TB overbore. You'd pick up some decent hp but would lose a bit of low end torque for this mod.

<small>[ October 21, 2004, 08:45 PM: Message edited by: perhapsadingo8yerbaby ]</small>

[Acamori]

thanks for the info on the pulley. though i was looking for dimensional info on the pulley, i'm gonna make my own (and yes, i know it's a bad idea unless i can do it right so go away)

[rukick]

I was told that some of those mods listed will actually reduce low end power. TB overbored for example.

[papa roached]

the only thing posted that would help with low end is the flywheel and pulley, and you dont have a 5 speed so only the pulley

[manowar821]

Hey... Uh, about that pulley, is there anything like that (or even one of those) that will fit the SOHC 1.6? That would be very cool.