bugspray carb?

carbsrus · Post by **carbsrus** » Thu Jul 18, 2002 4:36 pm

does anybody know of the classic vw carb, bugspray....i beleive it was made by holley...it is a 2bbl-any body have info on this? or used one?...thanks

Post by **Marc** » Thu Jul 18, 2002 4:57 pm

It was a non-progressive 2-bbl made for a non-plenum manifold. They took an old `50s Detroit carb design and recircuited it for the VW, and it wasn't half-bad considering the state of the art at the time. It still suffered from all of the maladies attributable to the lengthy path from any center-mounted carb out to the heads (flat spot on acceleration was/is the biggie) but at least it wouldn't fry your engine like some other single 2-bbl setups can. It came in 2 sizes, 200 CFM and 300 CFM. 200 was good up to about 1679cc, 300 was good from about 1641cc up. (Yes, there was a little overlap- depends on the usage). It has a slot between the bores which is the only "plenum area" that it needs. If you put it on a plenum-type manifold the bottom end would go completely to sh*t but you'd gain a little top-end.
According to this:
http://www.holley.com/HiOctn/ProdLine/CarbList.pdf
both the 200CFM and 300CFM models are #2110.
200s have a list number 0-6244-1 stamped on the float bowl
300s " " " " 0-4691-2 " " " " "
The biggest problem you will have running one of these puppies is icing. It can be as warm as 50°F and if the humidity is high enough, you'll grind to a halt on the highway (especially in an open engine bay like a baja's) and sit there for half an hour before you can move again. The venturiis will completely plug with ice! I had such a setup 25 years ago and I had to carry a propane torch (and a fire extinguisher "just in case") to be assured of making it anywhere on time in Seattle weather.
Give one decent manifold preheat (no available manifold could- you had to cut the preheat tube open and jacket the intake runners with sheetmetal), and duct some warm air up to the aircleaner in cool/damp weather, and it'll work at least as well as a single 40IDF Weber (which isn't saying a LOT).

In2vws · Post by **In2vws** » Thu Jul 18, 2002 5:58 pm

I ran a "Bugspray" too, about 20 years ago.
I experienced all the problems Marc mentioned. Icing was a MAJOR problem. I kept a propane torch in the car too, but eventually found if I dumped a can of Heet in the tank at EVERY fillup, it wouldn't ice up. The damn thing was stacked in three section and leaked gas at every mating surface. It won't fit in an older bug without modifying the aircleaner.
I definitely wouldn't refer to it as a "classic", and wouldn't have one pounded up my ....

Mark

In2vws · Post by **In2vws** » Thu Jul 18, 2002 6:01 pm

I did like it better than the Holley/Weber progressive tho....

Mark Allred

JordanK · Post by **JordanK** » Thu Jul 18, 2002 6:08 pm

I have some of both model, the 200 cfm (#2100) and the 300 (#2110) if you're looking. I also have some rebuild kits for them. I briefly ran one on a bench engine just to see if it would really work, and to play with the adjustments and see how they worked. I haven't had them on a car yet, but that's coming. I'm attempting to set up a dual BugSpray system for some future engine, just for fun. Dual carbs w/ chokes! I buy them whenever a deal comes along, I just kinda like that particular carb for some reason. It's not a true two barrel, in that it only has one large intake throat that feeds two venturies set side by side in the baseplate. The throttle shaft tends to wear badly on these carbs, but it can be fixed. The 2100 is very similiar to a Carter Deuce carb, used on american cars. It is really not the best for VW applications, though it does work ok on smaller engines, as mentioned above. The 2110 was the result of a year or so of tests and studies, and was reworked specifically as the BugSpray for VW's. Rebuild kits are still around if you look for them, and are usually very complete w/ everything you need. So, there you go. more than you ever wanted to know.

If you're looking for a rebuildable carb let me know.

------------------
Jordan
1963 Beetle, 5 spokes, 1776, dropped spindles, etc...
1973 Standard Beetle, stock.
1968 Fastback, stock for now

Jeff T · Post by **Jeff T** » Thu Jul 18, 2002 6:36 pm

I have a Holley 2110 carb and manifold for sale.Comes with rebuild kit.Email me if interested. JT

rustyfastback · Post by **rustyfastback** » Thu Jul 18, 2002 7:08 pm

I bought my rebuild kit at NAPA, but make sure you have the list # or the partsman will not be able to help you. One note I don't think this carb will fit if you are running an alternator, at least it did not fit my 1641 dual port with a bosch AL82X alternator.

vwoval.com · Post by **vwoval.com** » Thu Jul 18, 2002 8:41 pm

Man I loved mine. I had a stock 1600 dual port and ran it for several years with the 2 barrel Holly Bugspray. Everyone I talked to said they hated them.. but I loved mine. Great power increase over stock. I constantly smoked my friends 1600's with dual carb setups. I guess the engine was just a strong runner also for a stocker.

------------------

chris
shoptalk@vwoval.com

carbsrus · Post by **carbsrus** » Thu Jul 18, 2002 11:09 pm

Thanks for all the info, it was a HUGE blessing! ...now that i know what it is, would anyone know what the part number is so that i can get a rebuild kit? , thanks again...God Bless!

JordanK · Post by **JordanK** » Fri Jul 19, 2002 2:09 pm

The # on my kits is 00-2238-0. Dont' know if that's a Holley PN or what, but it's what's on the sticker on the box. It may just be the vendor's #, because looking at it, there is another number on the inner box, 15553A. I would try that one at the parts store first. Sorry I can't be clearer, but one of those should be what you need. Good Luck,

------------------
Jordan
1963 Beetle, 5 spokes, 1776, dropped spindles, etc...
1973 Standard Beetle, stock.
1968 Fastback, stock for now

rustyfastback · Post by **rustyfastback** » Sat Jul 20, 2002 4:45 pm

I found my carter zip kit book today. The book list the holley bug spray in the catalog under VW. OE holley #s (aka list #) R-4691, R-6244. The zip kit # 902-530 is listed for the bug spray. I am not sure who sells this brand. I took this part # to NAPA a few years ago & it crossed to their brand "echlin".

Beezerbob · Post by **Beezerbob** » Fri Oct 12, 2007 7:29 pm

Kits are available but where to get a float!?
I told my friend what a big boost in power one can get from a stock motor with a bug spray carb on a bus with single port heads!!

bugman742002 · Post by **bugman742002** » Fri Oct 12, 2007 8:31 pm

i have one on my 74 bug. it had an alternator and it workes just fine. i changed to a generator when i kept blowing out alternators.

Steve C · Post by **Steve C** » Sun Oct 14, 2007 3:33 pm

Hi

I used to run one years ago on a 1641. It worked great and gave very good mpg. The icing was always an issue. I found that if I a fitted cover over the air filter and ducted warm air into it it worked fine.

I always thought that the icing was caused by the step between the main body and the centre section, I wonder if porting/smoothing this out would improve or upset anything.

Steve

MNAirHead · Post by **MNAirHead** » Mon Oct 15, 2007 4:58 am

I learned to have an old timer hot rodder set up the carb - not a vdubber.