Torque - Discussion, Physics, Displacement And Ideas

[discopotato03]

From a competition perspective brutal mid range torque is what rally engines are based on , they don't rev because they have turbo restrictors which put a limit on how much air can be drawn in with only atmospheric pressure outside them - at best .

sthe Sierra Cosworth and they failed dismally because the gap between lag and restrictors the flow limit was initially very small . All the manufacturers/teams had to reduce turbo size so as to get them to make boost and have a wide enough usable rev range .

Anti lag systems were also used but they are very hard on the manifolds and turbos because of very high exhaust temps through them .

The R33 GTS25T thing is very different to the Evos and equivalent WRX STis . From memory the 33 makes 184 Kw and I'm not sure where the std cars torque peak is . The figures for my Evo 6 GSR is 206 Kw and the torque peak is at 3500 revs . The STi GC8 was I think a little lower Kw wise and they were noticeably lazy up to about 4000 revs .

Both the AWDs are lighter than an R33 in the case of the Evo 6 had larger wider wheels and tyres .

My GSR std weighs 1360 Kg and the stripper RS 1260 Kg . They have 20 more Kw , weight 120 kilos less and have AWD and more rubber to put the power down than a GTS25T .

In fact my R33 and the Lancer both have 17 x 8.5 wheels and 235/45 tyres on them and you can guess which digs it claws in best under all conditions .

I'll agree that Nissan wasn't after extreme performance from the GTS25T's , they obviously had the GTRs to carry the flag in that era .

Also from what I read it seems that people don't modify RB25's to make strong low to mid range torque , most want the 240+ RWKW and there will be a rev penalty paid for using single scroll turbos large enough to handle the gas flow for 240-300 Kw .

It is possible that making lots of low to mid range torque in a 1380 Kg RWD car would make for lots of wheelspin so when it comes higher up it happens at higher speeds where traction could be less of a problem .

A good friend keeps telling me that the Prince Motor Company was where the Skyline brand came from and they always intended them to be an open road GT type car . The Evos and STi Rexes are a bit harder edged and bite harder in the on/off throttle operation than the RWD Skyline , they are more sure footed and chuckable IMO and my Evo anyway is much sharper in its response to driver inputs . Just different factory developed DNA for different purposes .

A .

[PM-R33]

A good friend keeps telling me that the Prince Motor Company was where the Skyline brand came from and they always intended them to be an open road GT type car .

Yep that is correct.