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first time with a engine swap, what cam to get?

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camo91
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RE: first time with a engine swap, what cam to get? 2011/03/19 17:52:17 (permalink)
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ok, so the 520 is not going to be a pain to drive with everyday? is there going to be any head draft work needed? is just having standard insides of the engine going to stuff me when i put this cam in? so having it between 3000-6500 is that going to be a beach when it idles, Like will i have to keep it at a min rev or it will die? also will i have to rev upto 3000 before i take off or i will stall?
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KIZZA
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RE: first time with a engine swap, what cam to get? 2011/03/19 18:45:05 (permalink)
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mine comes in at around 3200rpm and its abit of a prick in traffic but its fine mate you will just drive accordingly. you get used to it.
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blackmk1cossie
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RE: first time with a engine swap, what cam to get? 2011/03/19 19:25:46 (permalink)
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if you are running standard valves and or porting you are wasting your time with twin webers.38 dgas is the way to go for carby
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camo91
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RE: first time with a engine swap, what cam to get? 2011/03/19 19:39:00 (permalink)
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well im not going crazy with the engine but this is what i hopeing to do....cam time with spray Bar, Linear Cam pulley, New Cambelt, water pump, Thermostat, Complete Gasket set, Have the Head skimmed, Valves checked and recut if Nescessary. Port the head and take all the Sharps out the chambers, Clean up all the flutes.
Ally Bottom Pulley.
For the Block Itself...Hmmm, New rings,polished Pistons,all Seals, Re-hone the Bores,New Con rod End Shells(if needed,Dould Go Steel Con rods as burton Have them), New Bearing Cap Shells (depending if they're Knakered), New Oil Feeder(or at least clean it out)
Then put it all back together.
Electronic Ignition is a MUST! lol, No pratting about with points and condensers. then Tune Time.
and Double Dowel the FlyWheel to Clutch,with a 3 or 6 plate Paddle.
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blackmk1cossie
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RE: first time with a engine swap, what cam to get? 2011/03/19 20:43:01 (permalink)
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but standard valves which means the head will not flow enough to make the best of the twin carbs.you will have to put in small chokes,mains which will make it expensive to set up and use a lot more fuel for no real gain as well as making the car less drivable.your two choices as i see it are either put big valves in 38/44 or us a 38/38 dgas.it doesnt matter what you do to bottom end or reco head,yes it will make it smoother and a little more power but will not utilise carbs to half of full available air flow.
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camo91
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RE: first time with a engine swap, what cam to get? 2011/03/20 12:42:06 (permalink)
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is it alot of work to install bigger valves? Is there machine work needed? where can i get there's valves? if i change them, will i have to do anything else to the engine for it all to work together and not destroy itself?
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blackmk1cossie
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RE: first time with a engine swap, what cam to get? 2011/03/20 14:17:59 (permalink)
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yes it is more work and the cost of buying fitting and porting head to suit will cost around $1000 BUT WHAT ARE YOU TRYING TO ACHIEVE.if you just want to use twins for no other reason then the sound or to say the car has them ,then just do it.if you want to use them to make power which is what they were designed for then you need to spend money,there is no other option.the valves can be purchased from england at any performance shop or there will be suppliers on this site which can help.i have seen and built many 2lt engines and if you dont follow some of these basic guidelines you will only end up dissapointed with the outcome in my opinion
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camo91
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RE: first time with a engine swap, what cam to get? 2011/03/20 14:44:47 (permalink)
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Well i think mild cam, twins(with smaller chokes), exhaust and see what happens. If im not happy with what I have, I will spend the money and do more. But I dont want to go all out straight away. It is my first engine build and want to learn and progress on time to create something I enjoy.

thanks

regards Hugh
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blackmk1cossie
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RE: first time with a engine swap, what cam to get? 2011/03/20 14:49:56 (permalink)
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good luck with it all
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