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Post by landcrab1974 on Jun 25, 2018 10:25:31 GMT
My landcrab runs like a train, however it's leaking too much oil from the timing and rear main seals. Thus it's time to remove the engine for a reseal. And of course the questions come up with, well while we are here......!
Currently my engine is a stock mk11 with a stage one head , downton extractors, twin SU's.
My question is should I take the opportunity to swap out the cam? Something like a Mgb???
I understand you do not want to get to excited for the auto transmission longevity.
Thanks
Lyndon
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Post by Penguin45 on Jun 25, 2018 19:03:58 GMT
Hi Lyndon. Welcome aboard. That's a question for David, Tommy or perhaps Andrew. I gather that the MGB mild road cam is a popular choice, but you need to know how to set it all up properly. I don't........  Chris. |
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Post by andrewa on Jun 26, 2018 8:07:50 GMT
I went with Piper Cams and have tried the 285 - great fun but doesn't really get going until about 2,500 rpm and the 270 which I find really good and I'd imagine work well with your setup and the auto. Between 30 and 80 mph it is an absolute hoot .The idle is a tiny bit lumpy in my car but nothing horrendous. Fitted vernier pulley as well so you can time it spot on. www.pipercams.co.uk/Camshafts-Car/Make-BMC/Engine-B-SERIES/I went the whole hog of programmable distributor as well. www.123ignition.nl/product.phtml?id=189Which is expensive but very good once set up properly and I run two curves, one for good fuel and one for not so good. Good luck with whatever you decide...as I'm sure you know though this tuning lark is a slippery slope...... |
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Post by dave1800 on Jun 26, 2018 13:32:37 GMT
As Andrew has noted the 270 is fun but I think with the auto a stage 1 head and twin SUs that the standard UK MGB (16,56,51,21) maybe the one to go for. It depends what you want. I would be a little cautious trying to get too much power with an old auto-box.
You will need an electric fuel pump unless you can convert the cam as Tommy had done to drive the mechanical pump.
David
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Post by landcrab1974 on Jun 27, 2018 5:57:21 GMT
Thanks Dave, my landcrab has already been fitted with an electric fuel so all good there. You are correct, I don't want to blow the auto!
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Post by dave1800 on Jun 27, 2018 7:32:44 GMT
Do you know which camshaft is currently in the car?
David
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Post by james on Jun 27, 2018 22:54:39 GMT
I have an auto MK1 sedan and when I had the engine rebuilt years ago by an MGB shop they put in a "Two stages over factory" cam.. whatever that actually means.... the upshot is that it is a bit rough when idling but it actually goes great... it is MUCH better since I put a new electronic ignition and new dizzy from these guys performanceignition.com.au/p/scorcher ... in fact it is like a brand new/improved car since I did that.... anyway, the car LOVES the open road and I can sit on 110kms all day long... it does get hot in traffic even through I have a brand new radiator and an automatic oil cooler fitted... I always wondered if having a lumpy cam made a difference to the temperature... the car also has hardened valve seats and slight larger valves...but is single carbie and standard inlet/exhaust manifolds... and I always run in on 95 octaine.. |
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Post by landcrab1974 on Jun 28, 2018 0:12:11 GMT
As far as I'm aware, the engine would still have its original stock cam, its grown the additional goodies over my ownership,
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