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1641 Carb size?

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Boozer Demented But Determined

1,999 posts · joined Dec 2002 ·

#291572
Ok. now that i've confirmed that my old engine was a 1641 i need to find out a few things.

1. compression ratio.
2. what carbs would be suitable for it? preferably single not twin carbs and where to find/get them would be good.
3. and any other usefull info you think i might need. :thumb
THe MC Bat Commander's motto: "Never do now, what you could do for 24 hours straight, all night, the night before."

11CAB If ya got it....Baja it

4,674 posts · joined Aug 2002 ·

#291578
A pict 34 would be fine for it
I had a 1776 with a 40 DCNF on it then changed it back to a pict34 and it went pretty much as well as the weber up to about 4500rpm and had a choke as well....
65 Meyers Manx
68 Country Buggy (KO 367)
68 Country Buggy (KO 669)
68 Country Buggy (KO 789)
68 Country Buggy (KO 815)
68 Baja Bug
76 Baja Kombi Twincab

64vwmark Fahrvergnugen

930 posts · joined Dec 2004 ·

#291768
My 1641 has a 40 DCNF Weber as well. It works ok and is easy to tune. I'm told that twins are much better though as the intake manifold is too long with the single carb. I'll get to try out some twins soon, a family friend is giving me some!!


Beach Buggy
74 L Beetle
Mk4 Golf

Oasis Going alone...

1,806 posts · joined Jul 2003 ·

#291850
twins are no good for off road as the linkages are a bit too fragile so I'm told, but of course good for going FAST:bounce
"Tell him 'We've already got one'"

GL1972 Wolfsburg Wizard

432 posts · joined Aug 2003 ·

#291977
How about a progressive Weber DCD/Holley 5200 32/34 or 32/36 (not sure if I got the designations correct). Once tuned they give good performance and are economical.

Brendan

Craig Torrens 6 times Australian, 7 times State Hillclimb Class Champion

8,040 posts · joined Jan 2003 ·

#292066
Stay with the standard carb.......................the motor probably has a standard cam so why pour more fuel into it.

If you are running Baja extractors then rejet the main to a 135 or even a 140 jet.


Quoll Officially Full-On Dubber

232 posts · joined Jan 2003 ·

#292657
2100 bugspray with a non-plenum manifold
:thumb

MUD BASHING ANYONE ?? Wolfsburg Wizard

591 posts · joined May 2004 ·

#296991
If your just doing a top ender make sure that the bottem end is still good by getting two flat bladed screew drivers and putting one on ether side of the flywheel and moving it from side to side and up and down and if there is move ment is not so great if theres alot put it in the bin and find a type 4. and the carby stick with the stocker yor motor will not have enough anything to need a webber it will only go worse and use more fuel
You only need two tools
Wd40 if it don't move and it should
Duct tape if it move's and it shouldn't

Doug Sweetman Nil Bastardo Carborundum

2,128 posts · joined Sep 2002 ·

#297037
If you put a properly jetted and tuned 32/36 DGAV progressive weber on any 1600 and larger engine with a better exhaust (its a baja, it must have extractors of one form or another) you will end up with great driveability and a nice performance improvement. Get the mechanical secondary version - you can drive around on one barrel of the carb to save fuel, and give it a bootful when you need it.

Or you could stick with the stock 34 pict, it will work fine, I just think (from experience) that the progressive 2 bbl webers are great value for money and can waken up a 1600 a bit more.

barls Administrator Causer of Chaos and Mayhem

9,473 posts · joined Jun 2004 ·

#297038
they go alright with a prog webber i had one on my big bore still have the carb too if your interested. the only problem is the manifold was used with a different carb. but if you want it let me know
“We all pay for life with death, so everything in between should be free.” Bill Hicks
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Doug Sweetman Nil Bastardo Carborundum

2,128 posts · joined Sep 2002 ·

#297040
Oh, and regards the compression ratio, dont go above about 8.5 : 1 without starting to look at external coolers etc.