[EvoX-Q8]

Hi guys, i've been looking around the forums and checking many threads and noticed that when using a stock frame turbo the difference between hp/tq is huge, almost like an S/C car, i've been into TT 350z's and Supra's and you can almost get hp/tq almost near each other, for example 570hp/560tq (just an example), but on the evo the tq is waay lower than hp, is it because of the stock frame turbos or what?


BTW i noticed complete turbo kits (ets/ams/hks) they got hp/tq near each other.

 

[Sequence]

TQ is a lot lower because thats when our internals like to give up.... ppl say 400tq is the killer... thats why you see 600/400 etc

 

[DRIV4K16]

I notice the opposite...stock frame torque/hp are much closer than on a t3 and the bigger the turbo...the bigger difference between them

 

[chkmgnt59]

The stock frame turbos typically have higher tq than the aftermarket kits on the X. On the older evos, especially those with 2.4L blocks, they are generally the numbers you're more used to. 2.0L engines simply don't make as much torque - we make power by holding torque out at high revs.

 

[EvoX-Q8]

Hmmm, i'm thinking about (HKS EVO X GT3240 Full Turbo Kit), but i don't know if it'll fit on the ETS IC pipes or do i need HKS pipes for that kit, and some other times i think about MAP EF2 turbo with their short turbo manifold.

My aim is 400-450awhp with torque around the same numbers, i'll also add that i might with get HKS 2.2L stroker, or stick with HKS con. rods and pistons (i found them at a local HKS Pro Dealer).

 

[BrazilBro]

The higher up the powerband you go to achive bigger power the more tq you are going to sacrifice. With stock/stock frame turbos you can keep the numbers close but as you increase the size of the turbo to increase HP you loose tq because your power comes on later. The reason we only see 350/350 or 400/400 and they see 500/500 is simply the fact that their engines have more displacement. A supra or 350 running big turbos will have the same gap between hp and tq as an EVO.

And as was said earlier. 400+tq on stock engine is killer so people usually tune out some of the tq on stock frame turbos bigger then a green.

 

[Frankiago]

Horsepower is just a factor of torque. We produce less power down low than your larger displacement and more cylinder examples.

Think of it this way... if you get a built 2.0L motor to rev out to 9k rpm, you only have to hit 350wtq and hold that out all the way to 9k rpm with a big turbo, yet you'll end up with a peak of 600whp. 600hp/350tq thanks to a tiny motor with a big ol' turbo spun out to 9k rpm.

Meanwhile, if you have a bored/stroked 2.5L and max out an FP green, you'll probably spike to 450-500 wtq and 450-500 whp with the stock rev limit.

That'd be a torquey sum'bitch.