TheSamba.com :: View topic

Sat Oct 03, 2015 12:43 pm

I have a 2332 with some wedge port heads 44x37.5 and an fk43.i have 70 idles,155 mains and 200 airs.im getting a stumble just above idle.if I just barely give it some throttle it wants to stall until I give more gas.after 1,700 rpm its totally smooth all the way up.i tried to put in some 65 idles in and the stumble moved up just a little bit in the rpm range.i don't know if I need different emulsion tubes etc.....thanks

Sat Oct 03, 2015 1:25 pm

I'm running similiar and my jetting is 62/165/200 F2s and 40 vents. I'd suggest u ensure your jets are accurate from stamping. 155 are gtg for 37 vents.

Sun Oct 04, 2015 8:24 pm

Try going up on the idle air. See how it runs with the 70 and then the 65.

Mon Oct 05, 2015 3:18 pm

Jus put F2s and come up on your mains and with that combo I hope you running 40 or 42 vents

Tue Nov 24, 2015 8:26 pm

I drilled out some 70's to about 80 size.a tiny stumble right at the touch of the pedal but transitions perfectly all the way up...I gues I have to liuve with it..

Thu Nov 26, 2015 8:06 am

Not to hijack the thread, but the original poster seem to have his question answered-

2017
Engle 120
1.25 rockers mild port and polish, 40x35.5 valves
48 IDAs w/37mm venturis
timing is 8 degrees initial, 30 degrees all in
195 airs
145 mains
F-11 tubes
65 idles
120 idle airs
Has a stumble/lean pop/hesitation right around 1400 rpm. Been up and down with the airs, mains, idles, and F-7 tubes, none of it seemed to make any difference. Adjust idle screws to highest rpm, then 1/4 turn more, and it pops out the top of the carb.
???????

Thu Nov 26, 2015 1:47 pm

I'd say start from scratch at 60/150/195. If you have the third progression drilled, u can go to a 55 idle. Id add 2 degrees more timing at idle and see. Recheck your linkage geometry for proper open/close.

Thu Nov 26, 2015 2:12 pm

At sea level, often a 110 idle air helps tune this out. I'd also go to a 150-155 main.

Thu Nov 26, 2015 2:41 pm

I concur, 55/150/200 would be my starting point.

Fri Nov 27, 2015 8:45 am

I have a 2332 with 48,s IDF I been trying to get it right for awhile now.I just got a set up smooth as silk,i run f2 tube,s with 60idle 195 air 180 mains Cranks first turn no stumble thur gears.No matter what tube,s u got u can work with them,this set up works fine for me at last.

Fri Nov 27, 2015 12:17 pm

^^^180 gas and 195 air should be piglet rich^^^

Sun Jan 15, 2017 2:59 pm

...HI from ronnie ...i run a 2442 stroker in our 55 3 fold oval rag .... JAYCEE prepped new 48 IDA/S csp linkage .tall matched ported intakes .. jaycee stacks.. holley 804 press reg.../ holley blue pump up front through 3/8 lines in tunnel ..fuel pressure under 3lbs......motor .fits nice in oval ..no side mods .......full flow case ..motor has fk8 cam 5.7 chev rods 88 x 94 ....full circle crank.... 1.4 scat rockers. 1 5/8 a1 sidewinder ....IDA JETTING is sea level here in australia 3rd progression holes drilled 3.0 brass needle / seat .... enlarged fuel bowls 42 vents... 70 idles /120 holder.. 170 mains f7 emuls. very slight stumble at 2200 .......coming to 2500 ...then off we go ...running dash mount innovative MTXL -2 wideband ... idles 12 .0 then stays around 14.7 on freeway ....fuel economy ??.. who cares ...life is short .... have fun .....we have 98 octane here downunder ...all good .. no problems .have a great 2017 ...vw people ....ronnie

Sun Jan 15, 2017 3:04 pm

...HI from ronnie ...i run a 2442 stroker in our 55 3 fold oval rag .... JAYCEE prepped new 48 IDA/S csp linkage .tall matched ported intakes .. jaycee stacks.. holley 804 press reg.../ holley blue pump up front through 3/8 lines in tunnel ....heads ...044.... 44 x 37.5 ........motor .fits nice in oval ..no side mods .......full flow case ..motor has fk8 cam 5.7 chev rods 88 x 94 ....full circle crank.... 1.4 scat rockers. 1 5/8 a1 sidewinder ....IDA JETTING is sea level here in australia 3rd progression holes drilled 3.0 brass needle / seat .... enlarged fuel bowls 42 vents... 70 idles /120 holder.. 170 mains f7 emuls. ..220 airs.... very slight stumble at 2200 .......coming to 2500 ...then off we go .plugs are NGK BP6ET oil is valvoline 20-50 w ....idles at 1000..rpm......running dash mount innovative MTXL -2 wideband ... idles 12 .0 then stays around 14.7 on freeway ....fuel economy ??.. who cares ...life is short .... have fun .....we have 98 octane here downunder ...all good .. no problems .have a great 2017 ...vw people ....ronnie

Sun Jan 22, 2017 2:49 pm

I at sea level and ida with 42 vents and my jets are F10/70,170m,200a,f2 street and 160m,190a,f7 race and both has no hesitation but f2 feel a little better on the street.

Sun Jan 22, 2017 2:59 pm

HI FROM RONNIE ...IN AUSTRALIA yep we are right on the pacific ocean here mid summer ...very hot ....and ...best surf around ...gold coast queensland .... australias tourist capital. .....

our orig 55 3 fold ragtop with the 2442 stroker ......now runs great ...thanks to help of the innovative wideband gauge for tuning .....idles at 1000 rpm ....gauge at low 12.00 ..... cruising is around 14.7 ....jack at jaycee supplied and rebuilt the brand new 48 IDA/S for me ...drilled for 3rd progression ..enlarged fuel bowls 3.0 brass needle / seat ...seat floats ......run the holley reg. at 2 1/2 - 3 lbs.... transition better now coming off idles at around 2200 rpm to 2500 rpm ...and the mains 170 come in .....220 airs seem to work best ....we have 98 gas here on all pumps ...thanks ronnie