New Carb

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dartindanno

dartindanno

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I just got a new carb from ATM Innovations. I met them at the race expo in Illinois a couple years ago. The owner used to work at Quick fuel and branched off to make their own carbs including their own throttle bodies. This is an 850 billet
 
Awesome that you posted the specs.... whats it going on, and whats it intended use?? Looks like it could be a winner for sure.
 
My specs are in my signature. Really good people to work with and they asked just about the same questions a cam manufacturer would ask
 
No, I just finished the engine late last Fall. It'll be up and running on the track in the next couple weeks. Wisconsin weather isn't cooperating
 
You need to pin it and see what it has for emulsion (and probably correct it), move the Idle Feed Restriction down where it should be, measure the PVCR’s and probably get a quicker opening power valve in it.

Just an FYI.
 
My previous engine had around 19 inches of vacuum at cruise so I threw a 10" power valve in. I'll check the new combo and thanks for the reminder
 
Their website isn't updated as it still shows they use Quick Fuel main bodies but now they make their own
 
Update on the carb. Slapped it on and it ran good then took it off, squared up the transition slots, put it back on with a tapered 4 hole spacer, did some adjusting and it's a great running carb. No stumble, just instant go when you whomp on it. Those butterflies are so polished you could shave with em
 
fklskv said:
I have one ordered also. 850. We shall see if it out performs AED 750HPHO on the real dyno. Drag car only.
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New ATM carb is on and track tested. Picked up 1/2 mph and couple hundred maybe. Kinda disappointing. It was set up with 87 square jets. Way too fat. Dropped to 85 jets much better. Pretty consistent. In fact I won Sat. I will be calling them Monday, see what they suggest. I think more tuning is needed.
 
fklskv said:
New ATM carb is on and track tested. Picked up 1/2 mph and couple hundred maybe. Kinda disappointing. It was set up with 87 square jets. Way too fat. Dropped to 85 jets much better. Pretty consistent. In fact I won Sat. I will be calling them Monday, see what they suggest. I think more tuning is needed.
Click to expand...

What was the carburetor that your used before this one?
 
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