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On Probation
Location:
North East NSW
Registered:
December 2002
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Re: 32/36 Weber Setup (Jets etc.)?
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Sun, 12 January 2003 12:16
 
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thats pretty interesting, sure is a small idle jet you have there. i've never seen an 18r-c intake manifold but if they're anything like the K motor one (even the smooth runner "good" one), they're shit, which in theory means you have to run a richer idle. i couldnt get a 45 idle jet working in my 3k and thats only 1.2L!
32/36 webers tend to run rich down low on anything, this is the tradeoff you get for higher rpm performance. it makes a shitload of difference on a 3k, how is it for you with your 2L?
the theory is to go as small as you can with fuel jets, then when it cuts out (too lean) go back a jet. air jets should be about main + 50 if you follow the book. speaking of books, a good one to get is haynes manual 393, weber carbs
isnt F6 a very rich e-tube? i have a graded list for sidedrafts, F6 is the richest. are the downdrafts the same? they couldnt name them in any sort of logical order could they 
while the theory says to set it all as lean as possible, at WOT more fuel means more power and i reckon it would be pretty hard to overfuel a 36mm throat as long as you dont go nuts with the fuel jets. most people setup the primary throat as lean as possible (good idle, little main, big air, mid e-tube) for street driving and the secondary as rich as possible (big main, little air, try different tubes) for power and noise. you will pretty much destroy any chance you have at flooring from low rpm and getting more response from the car than pop back up into your air filter
of more use is making sure your manifold is up to the task. smooth out the intake to match your adapter plate angle and turn the double-O into a big tall O (this is called "hogging" a manifold) for enhanced airflow. if you'd like photos and howto/tricks i can provide. i personally think polishing is only good if you intend to have high airflow all the time (ie: race application) for the street i would leave the manifold surfaces alone. port match to your head while you have the thing off (stick little clean rags down the head ports before attacking with the stone bit)
as absolutely useless as it is to you, heres what i have in a holley 5200 (licensed copy of a 32/36 dfv, which is a dgv with the throats reversed) on a standard 3k
idle 50 70
tubes no idea
jets 125 140
airs 165 150
with vac advance, no fast idle linkage, no choke flaps. does the secondary idle jet even do anything? the primary fuel is as lean as it can go, i'm going to try a 180 air in that throat and move the 165 in place of the 150. i cant use WOT at anything below 3000rpm or it just stumbles and dies. top end is fantastically different, even at 4000rpm it pulls more than with the original carb. i cant rev past 6200rpm because of dead valve springs, but up till then its all better than with the aisan
when i first got the thing i was jetted way rich. it sucked arse down low but it was hell noisy and when you got the revs up and floored it, i thought the car would wheelstand!!!
one thing. make sure you dont run your idle too rich and pop up into your filter on any sort of regular basis, you'll blow the air horn clean off the carb body like i did, helicoil time. exhaust popping on deceleration (2000-3000rpm for me) again means too rich
if your temp guage goes higher than usual it means you're running a bit lean. wherever you are, hot days and cold days will make a bit of a difference to your carb. this is another way to experiment with leaning and richening a mixture. this also means you may have to tune your carb twice a year as the seasons change
if you have vac advance on your carb and dizzy, then use it. if not, a higher static advance (5-10 degrees) is needed and tune the rest with dizzy weights. what are Rs like with lots of advance? a K motor will spin backwards before it pings as long as you have good fuel in it
finally, these carburettors have much better mixture qualities than the factory aisans, and you know what that means... keybang! 
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| | Subject | Poster | Date |
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32/36 Weber Setup (Jets etc.)?
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splbound | Sat, 28 December 2002 17:03 |
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Re: 32/36 Weber Setup (Jets etc.)?
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splbound | Thu, 02 January 2003 11:48 |
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Re: 32/36 Weber Setup (Jets etc.)?
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M.W.P. | Thu, 02 January 2003 12:06 |
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Re: 32/36 Weber Setup (Jets etc.)?
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splbound | Fri, 03 January 2003 05:06 |
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Re: 32/36 Weber Setup (Jets etc.)?
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M.W.P. | Fri, 03 January 2003 07:00 |
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Re: 32/36 Weber Setup (Jets etc.)?
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Super Jamie | Sun, 12 January 2003 12:16 |
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Re: 32/36 Weber Setup (Jets etc.)?
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indigoid | Mon, 13 January 2003 08:01 |
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Re: 32/36 Weber Setup (Jets etc.)?
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Super Jamie | Mon, 13 January 2003 12:35 |
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Re: 32/36 Weber Setup (Jets etc.)?
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mtsbirch | Tue, 14 January 2003 04:37 |
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Re: 32/36 Weber Setup (Jets etc.)?
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Super Jamie | Tue, 14 January 2003 08:30 |
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Re: 32/36 Weber Setup (Jets etc.)?
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splbound | Tue, 21 January 2003 13:20 |
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