They came today.



Fully adjustable, as you can see. On the left there are two screws to set idle and WOT settings, just blocks the tabs at whatever point.

You can adjust each throttle individually with the couplers between them. Maybe not as pretty as Toda, but better than we anticipated.

The springs giving the throttle wheel tension are VERY beefy. Curious to hear your input on that.

 

:bowdown: :yumyum: :drool: :awais: I want! I want!

Looks like TWM has had a redesign, and I must say, it looks HOTT. First time you have those suckers running sorta right and hit WOT [without the airbox of course ] you'll be singing "CAI VTEC WHAT?" I suggest open intake and open header with ear plugs the first time you go to announce it's completion :thumbup:

As for the return spring, that setup has more drag than a single throttle body, so a stiff spring in the stock setup is a good idea, keeps you from having to find another spring to get the plates to close like I had to with my carbs. Keep the pics coming.

 

Actually, there is a little helper spring on cylinder 2. :dunno:

And uh... how would I hook up a MAP sensor without an airbox feeding all 4? :dunno:

-EDIT-

:doh: Never mind, I could just use one of the vacuum nipples on the plenum.

Would that give me accurate numbers?

 

Now you need some of those slip-on sponge lookin' filters...

 

 

I meant having to look for a spring all by your lonesome to help close the throttle. Yeah, that will be close enough for any computer you have to compensate for altitude, etc. You won't get max power all the time tuning by reading one cylinder exclusively, but it'll be real close.

 

Well, I'm trying to figure out how to work my MAP in the best way. I could T together all 4 vacuum plugs and get an average, but then how would I vent my crankcase properly?

So should I run it in the airbox/intake tube or use one of the cylinders?

 

If you tap all 4 cylinders, you'll need 4 vacuum check valves, or else you'll get cross flow and horrible power, even though the cross flow between the runners will be small. Since the manifold vacuum should be relatively equal assuming you properly balance all the throttle plates, I would say just tap one and let the map read that, tap another one for your brake booster, and plumb your PCV, and your valve cover vents into the tube leading up to your airbox. Or, if you use a CAI, plumb the valve cover vent to the CAI, and find a way to plumb the PCV into the air box or airbox backing plate. The alternative to all of this is to say screw it and get a racing-type catch can setup.

 

A catch can has been dancing in my head lately...

 

Yeah, mine too, I have my PCV stuff all plumbed up, and I'm not sure it's really worth the trouble.