AirSpeed VW Community Forums

Technical => Engine Tech Forum => Topic started by: kit on November 20, 2005, 11:17:45 PM

Title: Dual Kads A Nightmare
Post by: kit on November 20, 2005, 11:17:45 PM

i checked out low bugget, tuning the air mix by ear is a joke there must be a better way than this, i tred his method and it failed, and yes everything in the ingition is a ok, timing, no intake leakes, runs really good and strong ,a little bit of smoke

Title: Dual Kads A Nightmare
Post by: slammedbus on November 21, 2005, 07:47:51 AM

Check for play in the throttle shafts. YOu can adjust all day long but with worn throttle shafts one blast on the throttle and its out again. If that doesn't work buy a synch tool from AS.

Title: Dual Kads A Nightmare
Post by: dannyboy on November 21, 2005, 10:03:10 AM

kads run rich out of the box, you may want to jet them down a touch, the stock mains in 34 pict carbs seem to work well
if you need more than that, airspeed has a full selection of jets....

Title: Dual Kads A Nightmare
Post by: kit on November 21, 2005, 05:27:00 PM

my main jets are 130 s i tryed screwin with the aacl pump, still smokin fouling plugs, runs really good tho, no oil burning , i was thinking maybe the main jets are too big, i can turn the mixture to it leanest point an d still get fouling? and no leaks atol bushings are fine

Title: Dual Kads A Nightmare
Post by: kit on November 21, 2005, 07:28:57 PM

well what i am gonna do is shim the fuel pump, to much pressure, then i will adjust the accl pumps then the main jet if it needs it but i dont think so, there only 130 s so it should be fine

Title: Dual Kads A Nightmare
Post by: Boost_Retard on November 21, 2005, 08:07:18 PM

Borrow a wide band reader...i would lend you my techedge..you can try it if you like..but i think something is outa whack with the reading...OR it could have been the super short exhaust on my turbo motor..

it will tell you where and when your rich or lean, in plain easy to read numbers...and then jetting aint guessing anymore..

i know it sounds like work..but really..its the only way to really know..unless your pro at reading plugs..but even then...

im not much of a carb jetting guy..but someone on this list could tell you what direction and how to get there..if you had some AFR #s..just an idea

Cale

Title: Dual Kads A Nightmare
Post by: kit on November 22, 2005, 07:35:52 PM

i think my fuel pressure is to high, going to shim it, dont understand how this will work, thought the floats would regulate the fuel pressure in the carb

Title: Dual Kads A Nightmare
Post by: dannyboy on November 22, 2005, 10:18:19 PM

the floats can only handle so much pressure before the needle and seats blow through...

Title: Dual Kads A Nightmare
Post by: kit on November 22, 2005, 10:37:28 PM

wouldnt i be over flowing?

Title: Dual Kads A Nightmare
Post by: kit on November 24, 2005, 04:04:42 PM

well, the fuel pressure reg is in , and presto, it works, still a little smoke but i can tune it out