This question may already have been covered, but I think my question may be a bit more specific?

First off, I love the s2000 - its looks and the way it drives. I'm not looking for a torque monster, and I don't want another car. I'm just wondering if a small turbo like the Greddy will help the car in 2500 - 3500 rpm range in the 1st and 2nd gears. I'm just looking for tiny bit more torque going from a full stop to cruising speeds. I'm looking at dyno sheets, but I don't know which gear the car was in and how that translate to real world applications.

Thanks

 

IMO- look into supercharger, not a turbo for this.

While it can be done, the S2k is a high rpm, high flowing engine. To match a turbo on the low end (again, wich can be done) would not be worth the $$ to get a little more.

As far as dyno question, it's a measure of the engine torque at speed, so in shorter gears, there is more 'apparent power' than in higher gears. As a rough estimate, compare the dyno to the stock torque/hp- so 2X at XXXX RPM to give you an idea. Most turbo kits build no power below 4k RPM- BUT when are you in below 4k? Leaving the line in first is the only time... I think you are talking more about usable power- area under the torque curve that is improved by running boost...

To summarize my rambling: if you want a 'more torque' street car, get a supercharger. If you want more brute Hp wound all the way out to readline, go turbo. (IMO please, yes I know some on this board have done absolutely amazing things with SC, but I am talking generally)

 

What supercharger provides low end Tq besides the sot kit which is almost impossible to find?

 

This is very false with the S2000. All of the supercharger kits currently available are centrifugal and all don't reach peak torque or HP until redline.

There was at one point a roots type S/C setup that would be exactly like the OP is looking for, but that is no longer produced and very hard to get your hands on. ( I tried for awhile)

OP, A greddy kit sounds like it may be perfect for you. High 200/Low 300 HP and mid 200 torque that comes on around the 3-4k range.

 

Yeah, that's what I thought too. The only way to drive the s2k is loud and proud (high rpm). I just wanted to accelerate without announcing my intentions to the whole world causing the minivan next to me to think I'm trying to race him/her. The minivans usually win though...

 

Yeah, I was reading around, and someone did actually say its good for stoplight to stoplight fun. In the meantime, I'll probably just take off my exhaust. I don't like making so much noise trying to get to 35mph.

Thanks for all the replies.

 

What Hybridsol said is far from true for this car.

The greddy kit is perfect for what you are looking for, it will transform the power curve of the s2k from a (basically) linear line from 50whp to 200whp to something that looks more like that of a wrx or mazdaspeed3 where all the power comes in around 3k rpm and then drops off after that. You can run this kit with a stock exhaust & cat (actually i think it's preferred to prevent boost creep) so you wont make much noise either.

Keep in mind though, that kit is pretty hard to upgrade, you essentially have to swap out everything but the intercooler + bov if you want to go bigger power in the future.

A supercharger on this car will have a very similar powerband as an N/A car, but even more peaky, the torque curve will be a diagonal line, so horsepower will be similar

 

The greddy kit really transforms the low end but it pretty much falls on its face up top. You might get ahold of p-tuning and see if a gtx28 will work with their kit. Should spool very quickly and flow enough for 400whp.

 

Ok guys point taken... lol /> must have been thinking of all the civics I worked on...

And to OP if you're not familar with it check out ths site: Evans tuning there is a searchable dyno section

*crawls back in hole*

 

go SC. much easier to put on/take off, maintenance ,heat,etc