just adjusted it, great response.

 

Okay first the person who said you will break the cable is right. You will eventually rip the pellet off the end going to WOT with the cable too tight.

Second, if the throttle is open and you are still pulling on the throttle cam then you will prematurely wear the throttle shaft.

Third, the slack is there to compensate for expansion and contraction of the cable, manifold, TB, etc. You'd be suprised what kind of problems a mis-adjusted cable will cause.

And I agree they should have put a bigger spring on the TB to prevent the bump throttle. It's freakin annoying.

 

Well I was going to tighten it, but you have to imagine that they put that slack there for a reason...good information timzcat

 

Just curious anyone else tried this??

 

I don't know if you're right or not but I've done this on my honda civic SI and I'm sure many have done this with no issues. I did it and loving the throttle response. Hope doesn't suck. Knock on wood

 

I did this a few days ago and just put mine back to how it was before. You were right, it does give good throttle response, but drivability sucks. It makes the car way too finicky, especially in rush-hour traffic.

 

I just checked my throttle cable when I was down at WORKS the other day. Pete stepped on my gas pedal while I watched the cable at the throttle body. Sure enough, when the pedal is floored, the arm was hitting the hard stop. So I was definitely going WOT w/ my pedal floored. This is a test everyone should do before touching the cable adjustment.

Also, make sure that you're reaching WOT near the bottom of the gas pedal. If you hit WOT too early, you could be stretching the cable too much, which can lead to something breaking.

 

Taking the slack out of the cable is a good idea for throttle response, but you want to make sure that you install some positive stop underneath the throttle pedal so you won't stretch the cable at WOT.

I haven't done this on an Evo but on other cars: One way to put a positive stop under the throttle is drilling a hole in the floor board under the throttle pedal and spot welding a nut over it (M8). You then take a bolt that fits the nut and spot weld or braze a round plate (or coin) to the bolt head that will act as the stop. Using another nut as a jamnut against the one that is welded onto the floor board you now have a height adjustable throttle stop underneath you throttle pedal that allows you to tighten the throttle cable - just remember to leave some minimal slack in.

 

I don't see a need to take such extreme measures just to take some slack out of the throttle cable. There's enough adjustment in the stock parts to leave no slack while still being able to reach WOT.

It's real easy to know when you've put too much tension on the throttle cable. Your idle will go up.

 

My car threw a code after doing this. PO 507 Idle System. I must have adjusted it a little too tight and it increased the idle by 150 RPM and the computer knew that something was out of whack. I put is back to stock. No more codes.

 

I think I'm just going to leave this alone... After reading this the other day and playing around with the throttle body, I decided to leave it as is.

 

It would be nice to have a safc when adjusting the cable since the afc shows your TPS, and rev (digital). I made sure the TPS was 0 when adjusting the cable.

 

just did this and WOW it feels great........great find GOKOU

 

by the way all you complainers..........if your so scared just tighten it a little bit, there is a lot of adjustment room

 

If anyone wants the proper way to get this result.
Adjust the cable so it is just hitting the stop at WOT.
Now adjust the TPS up to .70 volts.
You will realize the same result.

Most of your TPSs' are probably down around .55 to .60 and the ECU does not translate a trottle increase until it goes over.735.