what hump are you guys talking about, I read just by removing that hump inside the tb will give you some gains is that true and what hump is it.

The bore narrows from the intake to a certain point. Then it widens again before the throttle plate. At that point, the bore is consistant all the way past the throttle plate until the outlet. You can make that narrow section as wide as the bore at the plate - that's the hump. It looks kind of like a hump when you stare down the throat. It's very difficult to see from a picture - so take off your intake piping and take a look. You can't miss it.

Of course if that's not enough air for you, you can always convert a Jeep TB - see my sig for the writeup.


ride__________95 Eclipse RS : 5 speed
power________Field SFC Hyper-R : Gude cams : Jeep TB : AFX UDP : ram air : test pipe : GST catback
suspention___Hurricane F/R lower strut ties : BOMZ F/R upper strut bars : ES inserts
sound________Kenwood KDC 5000 : Audiovox 8" sub toob - no sub amp(damnit!)
shizzle_______AutoCommand remote start : dual air horns : Caspers o2 simulator(rear)
incomming___Bosal header
Jeep TB writeup - http://www.dimensia.com:81/jimbo/JeepTBfor2gnt.html

95 Eclipse RS : 5 speed
14.76 @ 94.72mph
Jeep TB writeup - http://www.dimensia.com:81/jimbo/JeepTBfor2gnt.html