SCGIRL400

Is there something I can do to get more power in the lower RPM's? It seems that the SC4 is a little slow on the start...Now I am no racer so maybe I'm just not driving it right..lol It seems great on speed once I've gone through all the gears...man wishing they came in a manual...

cmh

intake and exhaust... ull feel the difference a bit... other then that ur gunna have to let go of some serious cash...

SCGIRL400

I've already cut out the cat's still need to replace the the 20 year old mufflers. Thanks for the advice.

shboni

iTrader: (2)

sounds like its time to start saving for a Manual conver.

greens14

iTrader: (28)

Diff swap sounds like the cheapest result to get the results you want. Youll **** gas mileage away even more though

cmh

do the bfi... if what everyone states is true, u will get more power with the bfi then a regular intake that will cost u 200 bucks.

Kira X

iTrader: (24)

BFI or even a cold air intake would make a big difference. A manual conversion would be great if you have the money for it. It's a night and day difference on the SC300, so I'd imagine the SC400 benefiting greatly from a manual swap.

1jzchris

there is a thread that discuss unplugging a sensor thats located on the transmission. i tried this and there is a noticalbe difference when moving off. The sensor make to tranny slip when shifting so you get a smoother ride,so with it disconnected you are getting all the power. i will search and try to find the thread.

SCGIRL400

Appreciate it Thanks!

SCGIRL400

I'll try this and new mufflers and see what happens.

SC_coupe

Keep in mind the 1UZ doesn't produce peak torque until 4400rpm, and I find the transmission upshifts too quickly to make use of this, keeping the car feeling sluggish from 2000-3000rpm a lot of the time unless you really get on it.

Here's the aforementioned thread:

https://www.clublexus.com/forums/per...-its-free.html

I find myself using O/D off and using '2' a lot of the time around town because the transmission doesn't seem eager enough to downshift sometimes. I also have adjusted my TPS and now the car holds first gear for a bit longer, which definitely makes it feel less sluggish from a standstill. There is a thread on that too somewhere but I can't dig it up at the moment.

BenStoked

iTrader: (3)

you make it sound like the 1uz has no ***** down low; on the contrary, 220tq @1000 is alot for a stock motor

source: lextreme.com

you want more rpm without getting into it? shift manually at 4000. pretty useless, though, as when I'm just putting around, the shifting and power are just fine. When I need to get into it is when I am dissatisfied

I keep hearing about all these 1uz's with no power... I don't have that, and it makes me wonder what's WRONG with my car...

CantSeeMe

A restalled torque converter.