Generally turbos don't offer low end torque (below 3.000rpm on the S2000) which is i think the most important in city driving. They offer a very strong midrange and, if they are big, a great top end as well. The smaller the turbo thought the better the power at lower rpm.
BRP's solution (and generally all positive displacement superchargers, roots or twinscrew) is supposed to offer everything, increasing torque and thus horsepower from idle to redline*. BRP's dynoruns thought begin at around 3.000rpm so you cannot be certain of what the reality is from idle to 3.000rpm.


* Actually positive displacement superchargers are supposed to offer a poor top end, but BRP's dynoruns don't indicate such a problem.

 

Doctorcod, what is with your obsession with torque? Torque and engine speed work together to make power. A car's ability to accelerate(velocity change over time) has everything to do with power. There is no time component in torque. Anytime you are dealing with acceleration, you must look at the power.

The BRP kit sounds like it would suit you perfectly. It "only" makes 200-220 RWTQ, but it will DUST a stock STI. I'll argue that with anyone all day long.

Roots blowers of old are well known for their massive inefficiencies at higher operating speeds. There have been a number of advancements in their designs over the years and they are much more efficient now. That being said, they still drop off in efficiency at the upper reaches of their range...albeit not that much.

 

If i am using the wrong terminology, then my obsession is with LOW END POWER, if that is not torque, then i will just call it low end power. I am obsessed with low end power.

 

Gotcha...I'm obsessed with power. Low, mid, high, I could care less where...I just want it.

 

443 whp with 363 lb-ft is possible on pump gas (91 octane) with a small turbo (GT30R). The key is to run a smaller turbo and lots of boost at a lower RPM. The GT3071R should be perfect for 350 whp, 300+ lb-ft.

Tim

 

I can relate to your torque liking. I'm a hard core V8 guy and need my torque fix, that's why I also have a convertible Mustang GT. Nothing like old school 5.0L torque. I also had an 03 SVT Cobra which was just plain sick when it came to torque production. So when I bought my S2000 it was quite an adjustment for me. One thing to keep in mind here is the weight of this car, it only weighs @ 2800 lbs. Even though with a turbo you may end up with a lower torque number vs HP the car will still fly. The BR Performance blower is the way to go if you want low end grunt from this car. It gives a table flat torque curve and makes more power in the lower and mid rpm range which is where I do most of my driving. With their kit and some additional mods I think you can come pretty close to your goal.

 

With that kind of power would i have to get a built block?

 

Yeah my first car was an Olds Aurora, LOL, but it had a nice little torque curve for it being 4000lbs. (it was a small block, 244 cu inch v8) I have been lookin at that BRP thread for a while now, that seems to be the easiest way to do this, but the turbo options are quite enticing to me as well

 

I traded my sti in cause when I had my integra the more I revved the faster I went. In the sti I got full power and it stayed the same till redline, I found it boring. Its like when your banging a chick and you push a little harder, what if that extra effort went unnoticed? thats what an sti is like. If you like you buddy to walk in and kick you in the ass to get you in that extra inch for a killer finish then buy the s2000.

If your so worried about torque then buy a nice diesel and rev to 3500

 

Look here