I wanted to know if any company makes the 4 throttlebodied intake manifolds for the neon... I met a guy in kokomo not too long ago that had that application on his neon and his was wicked fast and i just wondered if it actually had anything to do with his speed the name of the car was the MICROMACHINES NEON.... He did a lot of his own race mods himself so perhaps he had it made. But I wanted to utilize his work into my car...

 

there was a company or two that produced these, at a fairly hefty price of around $3200... i know howell automotive has had one sitting in their store for the last few years.

other than that, poeple have gone and made their own for quite a bit less $$. keep in mind that the ITB (individual throttle body) setup is not for the mildly modded.. you basically HAVE to be using a standalone, and works best with high compression and other goodies.

 

Yeah definatly gonna hurt your performance if you don't have some serious mods, or have them planned.

 

Obviously made for a DOHC though. I don't know how much it ran, custom job I'm sure.

There have been a few people that have used modified Hyabusa TB's welded onto the stock (aluminum) manifold with the runners cut short. Others have used 4 Neon 49mm TB's on the stock manifold runners as well, with some sort of jury rig so they all open at the same time. No matter how you look at it, it's going to take time and effort on your part since nobody makes them anymore.

The Neon uses the speed-density method for fuel management, which relies heavily on MAP readings. With the ITB setup, you have an on-off switch more or less... There's not enough vacuum created between the TB plate and the intake valve to be reliable. You might even have to rig up a vacuum pump somewhere if you wanted to keep power brakes. Aftermarket engine mangagement would allow you to use the alpha-N method of fuel management, which is based on RPM and throttle position, modified slightly by air temperature and barometric pressure. Everyday driving becomes a chore though...

Best of luck!

 

Thanx for the info Ill worry about the mathematics later, but for now how about giving me some links to the actual parts. Its pathetic IM a aftermarket parts dealer/vendor and cant even find a throttle body such as this.

 

And a thought....why'd they ban em for use on the supercharged/turbo? 6 indy cars from years back? And totally get rid of the 6s at all? I think they still use em in Formula 1 but Im no longer sure anymore....Ive always wondered that its kinda outta the air but id figure id ask....and oooh!!! When is Dodge goin to get an INDY CAR? If TOYOTA can make a NASCAR I see no reason why dodge couldnt do the IRL thing...

 

Ebay has plenty of hyabusa TB sets (GSXR1000 I think, only for certain years though...) - I've seen them go for as little as $15, but most go in the $75-100 range. You still have to work some way to mount them to the stock intake manifold, but it can be done with very little modification, the TB's are all linked, and you have vacuum lines.

The TB's you see in the pic I posted were custom machined... hope you know someone with good CNC skills...

Stock 49mm TB's can be had for $10 each easily, even at a salvage yard (though the .org is a more reliable place...). You have to rig up linkeage, mount them and connect them to the TB.

Electromotive used to sell the TEC-3 for the Neon, which ran $2500+ and included engine management. They don't make it anymore, and used ones are very hard to come by.

ITB's with positive pressure? You'd have to build a plenum to go around the ITB's for that to happen... I'm sure it's been done, but I don't really see the advantage over a regular runner/plenum/single TB setup. ITB's with direct=port nitrous would be a blast with the proper engine management...