Abysmal perfromance of 2005 Vitz RS

[SirDigby]

wow you bought both? that's crazy. do you have to do emissions testing? if not you can get some pretty aggressive cam shafts. (and as always, forced induction) there is a few good lightweight flywheels available out there. the exhaust has 2 catalytic converters, and the second one is not monitored. exhaust work frees up some pep. removing the back seats and rails frees up quite a bit of weight, depending on your passenger needs.

[SlowVitzRS]

Originally Posted by SirDigby

wow you bought both? that's crazy. do you have to do emissions testing? if not you can get some pretty aggressive cam shafts. (and as always, forced induction) there is a few good lightweight flywheels available out there. the exhaust has 2 catalytic converters, and the second one is not monitored. exhaust work frees up some pep. removing the back seats and rails frees up quite a bit of weight, depending on your passenger needs.

I would like to retain car as stock as possible ;).
There are no emission testing in NZ (crazy!), just a visual check.

[ncp13]

Mine has the factory 15inch rims and stock size tire and 180000km and it revs out without hesitation


I dont know the weight difference of a NCP13 with a NCP91 maybe it gained a few kilos..


Stock factory figures where 0-100km/h 9 sec and 190km/h at the limiter and about 107bhp.

I would still check for compression though as I am weird like that

[SlowVitzRS]

Originally Posted by ncp13

Mine has the factory 15inch rims and stock size tire and 180000km and it revs out without hesitation


I dont know the weight difference of a NCP13 with a NCP91 maybe it gained a few kilos..


Stock factory figures where 0-100km/h 9 sec and 190km/h at the limiter and about 107bhp.

I would still check for compression though as I am weird like that

Well, my wife's IST (NCP61 same gen as your NCP13) is fine as well.

Will see how it (vitz rs) behaves with 1ZZFE throttle body...

Regarding compression: there is no need to check it, as it does not consume oil, there is no blow by, there is no idle issues, oil is clean etc.

What I believe has happened is that Toyota was lazy and used the same CVT safe tune/throttle map on manual car. While throttle response on CVT equipped car is not important on manual car it is somewhat important (unless you hate driving).

If I wanted a boring car I would have bought an automatic Tiida for half price.

Regarding performance difference between two - yes Gen2 is slower than Gen1 due to 80kg difference (Gen1 950kg vs Gen2 1030Kg). This difference would not explain anaemic throttle response.

What I am saying is that toyota took all the fun out from the engine with their very conservative tune. Bloody 3 cylinder Sirion is more fun to drive than this thing.

[ncp13]

Well if emissions is not a problem in NZ maybe you should backdate your ecu and throtle to gen 1 :)
Or try those kits that remove the lazynes from the systems with e-throtle.

Good luck