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New Carb Help

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Post  Northwest outlaw September 16th 2009, 2:15 pm

So let me get this right you ran that number with the hat off and running it na with the f1 and reg on?
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Post  all junk September 16th 2009, 2:17 pm

procharger sitting on truck bed none of it was hooked up
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Post  Tech @ BG September 16th 2009, 2:21 pm

Have you seen any fuel above the top of the carburetor , or any soot trackings on the bottom of the carburetor , intake runners or plenum?

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Post  all junk September 16th 2009, 2:24 pm

nope the headers are grayish black too
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Post  Tech @ BG September 16th 2009, 2:32 pm

all junk wrote:nope the headers are grayish black too
You keep saying this thing is lean but it sure sounds rich just from what you have posted. Somebody needs to do a real plug check on it and then go from there.

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Post  Northwest outlaw September 16th 2009, 2:34 pm

yea some thing is not right. You have the f1 and reg on now i would do a test run and pull the plug right after the run and the end of the track not in the pits unless you have a towback veh.... with out a afr gauge and reading the flugs we are all guessing on this.
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Post  all junk September 16th 2009, 2:36 pm

the plugs being sandy brown all way up to the threds and the strap the same color is rich then what color is lean i have made 8 passes on motor alone nothing else with this jetting turned off the ignition at the finish line and pulled plugs every pass is that right or wrong thats why i am here to try and figure out what is going on maybe i dont no what im doing but i thought i did i built the whole entire car myself from bumper to bumper
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Post  all junk September 16th 2009, 2:38 pm

i will post pics of the plugs this evening when i get home maybe that will help solve some of the problems
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Post  Tech @ BG September 16th 2009, 2:46 pm

Here's a link to some generic plug pics and symptoms.

http://www.4secondsflat.com/plug_chart.html

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Post  all junk September 16th 2009, 2:51 pm

i forgot plugs are autolite 25 maybe that makes a difference gapped at .025 maybe?
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Post  Tech @ BG September 16th 2009, 3:12 pm

all junk wrote:i forgot plugs are autolite 25 maybe that makes a difference gapped at .025 maybe?
Thats not enough gap on a n.a. run.

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Post  all junk September 16th 2009, 3:15 pm

what should it be on na and what should it be forced induction
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Post  Northwest outlaw September 16th 2009, 3:51 pm

Na .030 to .045
boost .020 to .035
you will have to play with it to fine the sweet spot.
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Post  Northwest outlaw September 25th 2009, 11:01 am

New Carb Help - Page 2 IMG_65091

Run the rubber hose in the vent tubes and out to the hat in the pic you can see the hard line but at the bottom it is rubber.

Did a real quick set out of rubber hose. My a/f went from 12.2 to 10.5. This is with 10psi on a 650 with 74/86 jets. So I got to thinking the proform main body that I couldn't get to work real well without huge jets this my be my ticket.

If you get a chance clean out the carb real good and check all the pass in the main body and met... block and blows for any forean debre and claen it real good im still racking the brain try this test and let me know what it does Jason.
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Post  Northwest outlaw October 7th 2009, 8:21 pm

Any new news if i have a few more thing to try been working on a BRPV. Well it use the boost and the spring flipped to hold it closed and use air to open the PV at out side air supply buy a rpm switch or a map sent...
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