Weber snorkel kit

i was up on TWM's web site and that's the same stuff K&N use to sell

so either TWM used to make it for K&N or TWM bought the molds

I bought my adapter from Supeshops

a few small problems where
1) you could not use a base for the air cleaner
that would lift the air cleaner up to high

2) there was a little interference with the passenger side hood latch


also Bob hit the nail on the head, you could use the finned snorkel with the stock air cleaner set up

And put a K&N in the stock canister.

the cost was around $95 back in the day

one small problem with snorkel

it is shorter then the stock snorkel so it might not flow that well
i always wondered about that

i will try to take a PIC of the round adapter

Davegt74

Travis said:

So Bob, you must have known that one of us would ask about your airhorn mods. Care to elaborate? pics?

-Travis

Click to expand...

I have no pics of the mods currently. I *do* have one modified DGAS carburetor in pieces, it has the venturis bored out to 30.1 mm (from 27mm stock), the auxiliary venturis streamlined and thinned out, the throttle plate screws and throttle shaft trimmed down, the choke tower radiused and polished, etc. I have another one I did on a friend's car with 2.0 block/1.5 head, and in fact that engine will be coming out soon to be replaced with a 2.2 litre, so that carb may be available for inspection soon. I had another one of these modded 38 DGAS's on my old Ascona, it really ran well. Needs higher compression to use it on the street, the larger venturis would hurt vacuum too much on a low compression street engine....mine had 11.02:1 compression...it pulled nicely from 2500-7000 rpms. I forget the actual flow numbers, but I seem to recall all the mods improving flow by *about* 60 cfm over the DGAS's stock 330 cfm.

If you see me again this year Travis, remind me and I'll bring the carburetor body along to show the changes I made. I think I had to drill the pump squirters out a few thou too, to around .026". And that engine had enough cam, so that I needed to drill the throttle plates to bypass enough air so I could close the throttle plates and it would allow it to still run in the idle circuit (per your experience Travis).

Bob

Okay, I've finally finished it. I bought the Jam engineering adapter. As someone said, it's fined aluminum, matches the valve cover and looks great. I got the one with the single oval intake, 2-1/2"x2". I don't know how to calculate flow area for an oval, but I'm speculating that it will flow enough for a 4 banger. I then found a 2" rubber plumbing coupler from Home Depot that fit the oval good with a clamp. I bought 3" air intake flex hose, a 3"OD x 5" piece of exhaust pipe that fits through the factory hole. I bought a K & N type cone filter that fits in front, and it wedged in so well that I didn't even need to build a bracket to support it. I had planned to order a K & N universal filter, but found this one at Auto-Zone and didn't want to wait. I guess it is for the Rice Boys, but it's way large so even if it doesn't flow as well as the K & N, it's still over kill. The front of it is also a concave air inlet. It has a 3" opening so it fits on the exhaust pipe nipple perfectly. I'm gonna try to attach a pic....sorry 3 tries..I'm out
James.

Here it is...I hope!