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48-ida empi prob please remove this post
http://www.woodsbuggy.com/phpBB3/viewtopic.php?f=3&t=12088		 Page 1 of 1
Author:  darrell [ Thu Jul 28, 2011 8:18 am ]
Post subject:  48-ida empi prob please remove this post
i have a 2443 with 2 empi 48 ida runs great but when i rev it up its got a gas smoke it will burn your eyes out has a 1.50 main jet 55 idle .i was thinking about going to 1.35 mains any one think that would help .i am hoping i dont have bad valve guide super flow heads.
Author:  jason108 [ Thu Jul 28, 2011 12:29 pm ]
Post subject:  Re: 48-ida empi prob
try to adjust your idle (bigger) it plays a big part in the final output. just my opinion but i would try there first.
Author:  darrell [ Thu Jul 28, 2011 1:12 pm ]
Post subject:  Re: 48-ida empi prob
jason108 wrote:
try to adjust your idle (bigger) it plays a big part in the final output. just my opinion but i would try there first.

A bigger idle jet or just a faster rpm idle
Author:  hyde [ Thu Jul 28, 2011 5:45 pm ]
Post subject:  Re: 48-ida empi prob
I would start with Checking spark plugs to see what they look like . & timing about 32de then floats level then fuel pressure 3psi then try small main jets or biger air jet . Ida like to have a 3rd progression port to make the fuel curve more flat . Call empi or cb for a update kit .
Author:  darrell [ Thu Jul 28, 2011 7:04 pm ]
Post subject:  Re: 48-ida empi prob
hyde wrote:
I would start with Checking spark plugs to see what they look like . & timing about 32de then floats level then fuel pressure 3psi then try small main jets or biger air jet . Ida like to have a 3rd progression port to make the fuel curve more flat . Call empi or cb for a update kit .

plugs look a little rich .timing is at 30 de now and floats is good i have messed with webers a ton my first set of ida im thinking intake guide im just hoping not :?: :roll: like i said engin sounds great does not mis or stumble just gas smoke it gets worse the longer it runs. people have told me that the super flow heads had a prob. with guides i just dont no if the guides would couse this prob.man that would suck :(
Author:  chris38375 [ Thu Jul 28, 2011 8:12 pm ]
Post subject:  Re: 48-ida empi prob
go down on ur idles down go down on ur mains if it runs good over 2500 rpm,ur motor runs on idle jets about 80% of the time so try 45s on ur idles then go to 50s if its to lean
Author:  darrell [ Thu Jul 28, 2011 10:10 pm ]
Post subject:  Re: 48-ida empi prob
chris38375 wrote:
go down on ur idles down go down on ur mains if it runs good over 2500 rpm,ur motor runs on idle jets about 80% of the time so try 45s on ur idles then go to 50s if its to lean

this is my next move thanks .i will let you know how it turns out .
Author:  ridenrace6 [ Fri Jul 29, 2011 2:56 am ]
Post subject:  Re: 48-ida empi prob
im thinking 135 or maybe 140 on the main jet and either 55 or 60 idle and about 175 or 180 air jet should get it fairly close
just my 2 cents
Author:  darrell [ Fri Jul 29, 2011 9:00 am ]
Post subject:  Re: 48-ida empi prob
ridenrace6 wrote:
im thinking 135 or maybe 140 on the main jet and either 55 or 60 idle and about 175 or 180 air jet should get it fairly close
just my 2 cents

all the info i can get i will take it .thanks im just getting a little worried big money in this motor .i at least wont to have a little fun in the woods before i tear it back apart . maybe i should have stuck with 2332 with webers :?:
Author:  DVS1 [ Fri Jul 29, 2011 12:42 pm ]
Post subject:  Re: 48-ida empi prob
Here's some calculations:
Venturi : 2 to 4mm smaller than intake valve
Idle : Venturi size x 1.6
Idle Mix: 1 to 1.5 turns out
main jet: 4.1 to 4.3 x venturi size
Air jet: 200 if mains are approx. 145 / 180 if mains are approx 135

These helped me dial in my 44's and I run SuperFlo's also
Author:  hyde [ Fri Jul 29, 2011 5:47 pm ]
Post subject:  Re: 48-ida empi prob
darrell wrote:
hyde wrote:
I would start with Checking spark plugs to see what they look like . & timing about 32de then floats level then fuel pressure 3psi then try small main jets or biger air jet . Ida like to have a 3rd progression port to make the fuel curve more flat . Call empi or cb for a update kit .

plugs look a little rich .timing is at 30 de now and floats is good i have messed with webers a ton my first set of ida im thinking intake guide im just hoping not :?: :roll: like i said engin sounds great does not mis or stumble just gas smoke it gets worse the longer it runs. people have told me that the super flow heads had a prob. with guides i just dont no if the guides would couse this prob.man that would suck :(

Super flow have no more guide prob. then other vw head . Start play with carbs & look in to the 3rd progression port . Do a leakdown to check piston rings.
Author:  darrell [ Sat Aug 13, 2011 3:00 pm ]
Post subject:  Re: 48-ida empi prob
new rings fixed it. i thought it was gas smoke just want to say thanks to everyone they are good people left in the world THANKS.
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