Crossfire idles too high? Why?
Burning Brakes
Joined: Feb 2013
Posts: 1,173
Likes: 152
From: norway
2,011 bore = 2.0572 plates to get the same angle as stock !!! but i do not think they have to be 100 % the same angle !!! as long as they have a angle !!! you have to clean, clean ,clean the iac valve and the seat !!!!
Thread Starter
Racer
Joined: Oct 2011
Posts: 417
Likes: 2
From: Blacksburg Virginia
When you say clean the iac, it shouldn't matter as these are disabled during this procedure. I have blocked the iac ports and unplugged the iacs.
I can balance both tb to one another, but can't get the idle low enough.
Thread Starter
Racer
Joined: Oct 2011
Posts: 417
Likes: 2
From: Blacksburg Virginia
Does anyone know where I can get larger throttle plates?
Team Owner
Joined: Aug 2004
Posts: 21,543
Likes: 3,216
From: Park City Utah
IN this pic, it looks like there is air gap, starting about where your finger is pointing, and getting bigger toward the throttle shaft. There is some beyond the throttle shaft as will, it appears. I would sand the ends of the throttle plates perpendicular to the shaft (by the balance hole and the opposite side) and/or the throttle bore in the same area, to try to get more closure and close up that area by the shaft.
You can get bigger throttle plates from Holley. I bought 53mm/2.09" ones for mine.
You can get bigger throttle plates from Holley. I bought 53mm/2.09" ones for mine.
Thread Starter
Racer
Joined: Oct 2011
Posts: 417
Likes: 2
From: Blacksburg Virginia
I just ordered 2 throttle plates that are 2.06" Hopefully that will close up the gaps a little to get a better seal, and a lower idle.
I will let you know.
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Joined: Mar 2010
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From: Bradenton Florida
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Are the shafts straight? Do you have any play in the TB units themselves. I had to re bush my TB's in order to get any consistancy out of the TB's. You could be leaking air around the TB shafts.
Burning Brakes
Joined: Feb 2013
Posts: 1,173
Likes: 152
From: norway
Burning Brakes
Joined: Feb 2013
Posts: 1,173
Likes: 152
From: norway
Thread Starter
Racer
Joined: Oct 2011
Posts: 417
Likes: 2
From: Blacksburg Virginia
Just an update...
I figured out the problem.
when I ordered plates for the body I ordered plates for the diameter I wanted....for example I ordered plates that are 2.060 thinking that was the diameter.
It's not...the diameter of the plates is actually about 2% larger ...they are per-sized to match a 2.060 hole....2.100
So I need to order plates that are 2.060 in diameter....I'll make calls tomorrow to figure out what I need to order
I figured out the problem.
when I ordered plates for the body I ordered plates for the diameter I wanted....for example I ordered plates that are 2.060 thinking that was the diameter.
It's not...the diameter of the plates is actually about 2% larger ...they are per-sized to match a 2.060 hole....2.100
So I need to order plates that are 2.060 in diameter....I'll make calls tomorrow to figure out what I need to order
Last edited by The Plastic Lizard; Jun 12, 2013 at 08:15 PM.