Vinman1 Posted January 5, 2022 Share Posted January 5, 2022 Hope all are doing well. I need to get an intake manifold for a Cross Flow w/ twin Weber 40's. Burton has several with various lengths and they advised to take measurements, however, engine is still at re-builders. From photos, my guess is the shortest (3.1") one that Burton offers? Any inputs / advise is greatly appreciated. Vin Link to comment Share on other sites More sharing options...
7Westfield Posted January 5, 2022 Share Posted January 5, 2022 (edited) mine measures about 3" are there different heights, as well? my front air cleaner is 1/2-3/4" above the top frame rail the Burton pic looks like mine you could also check with pierce manifolds--on the west coast--they are weber folks Charlie Edited January 5, 2022 by 7Westfield Link to comment Share on other sites More sharing options...
Anker Posted January 5, 2022 Share Posted January 5, 2022 1600 or 1700 cc? I have a Supersprint. The length is critical because the total length of the intake from the valve to the end of the trumpets controls the RPM at which the resonance enhances torque/horsepower. Anker Link to comment Share on other sites More sharing options...
Vinman1 Posted January 5, 2022 Author Share Posted January 5, 2022 7Westfield, Burton does not specify the height or offset. Not sure if Westfield chassis is same dimensions my Arch. Will check with Pierce, thanks! Anker, engine is a 1600 with a .030 overbore. I agree the longer runners are better for power, just not sure of how far the air cleaner will stick out. Most photos it looks like the rear air cleaner barely sticks out the cutout in the hood. Tony Weales rebuild restoration book says the manifold is a custom part made for Lotus / Caterham. I wish I had thought of setting the bare block in the chassis before I sent it to the re-builder. Both he and I want to run in the engine on his test stand, so I need the intake to do so. Vin Link to comment Share on other sites More sharing options...
JohnCh Posted January 5, 2022 Share Posted January 5, 2022 22 minutes ago, Vinman1 said: Burton does not specify the height or offset. Actually they do. Look at the second photo for each option and it shows a diagram marking the length, height and angle, then those three measurements are included in the Details tab. -John Link to comment Share on other sites More sharing options...
Vinman1 Posted January 6, 2022 Author Share Posted January 6, 2022 John, Thank you, I should have picked up on that! Have reached out to Burton and Redline to confirm fitment to this chassis. Vin Link to comment Share on other sites More sharing options...
IamScotticus Posted January 20, 2022 Share Posted January 20, 2022 I have found Burton will know which part you need with an email. Try Dave Bean and Pegasus also. Link to comment Share on other sites More sharing options...
panamericano Posted January 21, 2022 Share Posted January 21, 2022 Is Dave Bean still open? I thought I saw somewhere that they were selling everything to close? Link to comment Share on other sites More sharing options...
Vinman1 Posted January 21, 2022 Author Share Posted January 21, 2022 All, Burton got back to me on the intake and recommended the 3.1" intake (their part #IM4242A). Ken Gray at Dave Bean has been a big help, I don't think they are closing, and hope not. Vin Link to comment Share on other sites More sharing options...
toldfield Posted January 22, 2022 Share Posted January 22, 2022 Dave Beans shop is still open. I'm a very regular customer, much to the chagrin of my wife... Link to comment Share on other sites More sharing options...
Vinman1 Posted January 22, 2022 Author Share Posted January 22, 2022 Good to know Link to comment Share on other sites More sharing options...
bball7754 Posted January 23, 2022 Share Posted January 23, 2022 In case you’re also looking for the Webers….. https://www.apexspeed.com/forums/showthread.php?88843-40DCOE-ITALIAN-Webers-and-Manifold-Kent-1600 Steve Link to comment Share on other sites More sharing options...
Vinman1 Posted January 23, 2022 Author Share Posted January 23, 2022 Have the Weber 40's that were in the boxes of parts that came with the car. Sent to Jim Inglese, 8 stack systems for rebuild. He has been great to work with. Looking for 10 or 10.5: 1 forged pistons now... Link to comment Share on other sites More sharing options...
IamScotticus Posted January 26, 2022 Share Posted January 26, 2022 get Beans paper catalog, its full of tips and wisdom Link to comment Share on other sites More sharing options...
Vinman1 Posted January 27, 2022 Author Share Posted January 27, 2022 IamScotticus, Ken at Dave Bean has been a big help. One of the first orders for the car was all the missing front end parts (ball joints, trunnions, caliper plates, calipers, pads, bearings, races, and both of Beans catalogs. He has a wealth of knowledge, and is willing to share it. Cheers, Vin Link to comment Share on other sites More sharing options...
IamScotticus Posted February 2, 2022 Share Posted February 2, 2022 Vin, assuming you have the Triumph trunnions, do you know how deep to screw the uprights in to them? or how many turns back out from bottom? Scott Link to comment Share on other sites More sharing options...
Vinman1 Posted February 2, 2022 Author Share Posted February 2, 2022 Scott, I found instructions on a Spitfire site, that you turn them up all the way, then turn down the minimum amount that will allow for full steering radius. Also, do not grease them, Use 90W gear oil. I got mine from Ken at D Beans, and they came with oil plugs to use instead of grease fittings. Cheers, Vin Link to comment Share on other sites More sharing options...
Pokey Posted February 2, 2022 Share Posted February 2, 2022 A month ago I would have thought all of this talk of trunnions was somehow related to a fish those in S. Ca. might be familiar with, but I've been reading a book on the Elan that @JohnCh recommended and have a little bit of education now. The use of 90W is mentioned a number of times as it seems many came to the conclusion that grease would be better only to find out otherwise. Link to comment Share on other sites More sharing options...
Vinman1 Posted February 3, 2022 Author Share Posted February 3, 2022 Pokey, I would recommend these. The Tipler book I bought from John Donohoe at simplesevens.org and the Weale book I got from the U.K (Pooks Books). Cheers, Vin Link to comment Share on other sites More sharing options...
SENC Posted February 3, 2022 Share Posted February 3, 2022 lots of fun debate on the grease v oil in the trunnion debate on lotuselan.net... I find myself in the grease camp, but don't think you can really go wrong if you're checking/maintaining regularly Link to comment Share on other sites More sharing options...
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