 Fuel pressure regulator, Where to locate in engine bay |
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| North Coast Jim |
 Nov 30 2016, 05:11 PM
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Member  Group: Members Posts: 323 Joined: 11-December 15 From: Northern Ohio Member No.: 19,450 Region Association: MidAtlantic Region 
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My new 2056 engine running 44IDFs has now about a 40 miles on it. So cool to have this car back on the road after 25 years. Runs way to rich with a 160 main, 175 air correction, 60 Idle jets and a 36mm venturi. Continue to have a problem with popping through the carburetor at partial throttle. Fuel pump is the Carter rotary with inline filter along with their SS lines through the tunnel purchased from Tangerine Racing. Engine builder wants me to install a fuel pressure regulator to eliminate this as a variable. The jetting exercise can come afterward. I bought an Italian made "Petrol King" diaphram regulator with single outet. Will hook up serially the pump/ filter/ regulator / guage than "T" off to the two carbs. I'd like to hard mount this device but where ?? To the body or to the engine ?? I'm sure this has been done before. Any suggestions. Pics would also help. Thanks World
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| jmill |
Nov 30 2016, 06:48 PM
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Green Hornet Group: Members Posts: 2,449 Joined: 9-May 08 From: Racine, Wisconsin Member No.: 9,038 Region Association: Upper MidWest |
The carter is internally regulated. Buy a gauge not a regulator. Your AC jet is way too small, idle and main are too big with what I suspect are vents that are too large. Popping at part throttle is lean transition due to vents that are too large.
On a side note, check float level. A low level will create a lean pop. What ET do you have? I assume F11. There are other choices to help with your lean transition (F7). |
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| SirAndy |
Nov 30 2016, 09:13 PM
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#3
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Resident German Group: Admin Posts: 41,670 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(jmill @ Nov 30 2016, 04:48 PM)  Popping at part throttle is lean transition due to vents that are too large. (IMG:style_emoticons/default/agree.gif) I ran 32mm venturis on my 2056. Anything bigger than that and it would fall flat on its nose coming off idle. (IMG:style_emoticons/default/shades.gif) |
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Posts in this topic
North Coast Jim Fuel pressure regulator Nov 30 2016, 05:11 PM
SirAndy What's the pressure on your fuel pump?
When i... Nov 30 2016, 06:47 PM Perry Kiehl I'll pile on the "venturis are too large... Dec 1 2016, 07:36 AM
pbanders
I'll pile on the "venturis are too large... Dec 1 2016, 09:26 AM jmill If you had a lean pop at the top end of a hard pul... Dec 1 2016, 10:30 AM jmill The pic below is of my old bug that had 44's w... Dec 1 2016, 11:22 AM North Coast Jim
My new 2056 engine running 44IDFs has now about a... Dec 2 2016, 08:53 AM jmill This is where I start for engines in 2.0 - 2.5 lit... Dec 2 2016, 09:46 AM |
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