Hey everyone,,

Wanted to see if anyone has any info on ITBs..

are they a good purchase?
are they hard to tune?
Will i put down some good numbers?

I have a full exhaust, AEM EMS... Let me know what you think.. thanks

 

Wrong forum man. Try posting in the JDM tuning section, lots of N/A heads in there

 

wrong too, this should go in S2000 talk or under the hood, ask a moderator to move it

With the AEM EMS you should not have any problem tuning the ITBs find the right tuner is another history

 

spend a little more and get a SC or turbo. I don't think ITB's are worth the money...

 

-depends on your perspective. Many would say NO.
-yes.
-not really.

 

The motorcycle companies can do it so why can't cars(though yamaha needs to brush up on making a nice powerband)? Tuning will make you want to hurt yourself and the gains aren't that great thus far.

 

Yeah man, basically with a setup of well-tuned ITBs you'll pick up an extra 20-30whp, for about $6-$7k -- the only real reasons to do this are if you are dead set on staying NA, you don't want to deal with the safety/reliability issues of FI (I know I'll get flamed for that one), or if you feel like really driving yourself crazy trying to tune your car.

There are maybe a handfull of tuners in the country that can really tune ITB setups perfectly, and they are in high demand. So good luck if you decide to go that route, it's such a hard road that having a working ITB setup is almost like a badge of honor....

 

I think motorcycle engines are a whole different breed. They are much smaller in displacement, normally run at much higher rpms even just tooling around and don't have the same complications of extensive emissions controls to deal with. And really, how many motorcycles actually have ITBs? Let's not confuse ourselves with individual carbs, which many bikes used to have and still have. Certainly, many modern day bikes are fuel injected, but are they actually individual throttle bodied or are they supplied via one single one?

 

(Not trying to be a shit, but .............................)
Is this an established fact? Is there actually an example of an S2000 with ITBs that has been tuned and gives this kind of gain and has no running issues? The only example that I have heard of was a tuning nightmare, didn't idle very well and didn't put out any significant gains for the hassles involved. I am asking for real, not just being confrontational.

 

Within the past two years, motorcycles have been forced to adhear to the same regulations cars do, any new street driven motorcycle is required to be equiped with a catalyctic conver, fuel injected bikes must run engine management systems that can provide fault codes and are required to accept a factory scan tool, they also must run an O2 sensor. (albeit some applications only temperarly) Heck, some modern motorcycles even have ABS computers and throttle by wire.

There is not one Inline 4 cylinder motorcycle in production with in the last 10 years that did not have ITBs, injected or otherwise. There should be no issues running ITBs on your car, provided the tuning is done properly. But ofcourse this would apply to any major engine modification.