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Thread: Kent 224 cam

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    Kent 224 cam

    Yes, i know itīs my fault.
    I just got my X Flow back from engine workshop.
    Everything is fine except i did not check all the parts that i ordered from UK.
    Took all parts straight to workshop in unopened package.
    Now i realized that instead of Kent 244 I had a Kent 224 cam installed.
    My engine specs are:
    - 83.5 mm. Accralites
    - Stage 3 head
    - Balanced crank, rods and flywheel
    - Weber 40 DCOE
    - 4 to 1 manifolds
    Actually i donīt want to have any monster engine with a lot of rews and horses.
    I more like to have large torque band and long lasting engine with nice handling.
    Does 224 cam suit to my thoughts?
    Any ideas how many horsepower my engine might have? 130 bhp. perhaps?

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    Re: Kent 224 cam

    115-120 bhp maybe, but I think your compression ratio might be a bit too high for the 224 cam if you've got standard un-machined Accralites so if you were to drop the compression ratio you'd have less BHP (but an engine that will last).

    I ran 10.3:1 compression ratio with a 224 cam. I wouldn't want to go much more than 10.5:1 on pump fuel.

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    Re: Kent 224 cam

    it'll be alright if its off into the blue car. run super unleaded and octane booster if unsure about CR being high

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    Re: Kent 224 cam

    The gap between piston (when TDC) to deck is 0.10" + Cometic gasket 0.30" = 0.40" ( 1 mm.)
    How much is compression ratio and is it OK for 224?

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    Re: Kent 224 cam

    Quote Originally Posted by beex64 View Post
    The gap between piston (when TDC) to deck is 0.10" + Cometic gasket 0.30" = 0.40" ( 1 mm.)
    How much is compression ratio and is it OK for 224?
    You need more info than that to work it out, but Accralite's are quoted to be approx 11.8:1 (presumably in an engine with decent machining clearances to be found in a performance engine).

    You'll need to know the size of the piston combustion chambers, plus other details regarding valve protrusion etc if you want to be accurate. I can't see you being below 11.5:1 if your Accralites are "off-the-shelf".

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    Re: Kent 224 cam

    Compression ratio is even higher if looking at Burton's page for Accralite's :

    http://www.burtonpower.com/accralite...-fp115-sr.html

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    Re: Kent 224 cam

    Yes, the pistons are un-machined, lucky to have 711M T16 block which still has original height. Even engine number can be seen on top of the block.

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    Re: Kent 224 cam

    Quote Originally Posted by beex64 View Post
    Yes, the pistons are un-machined, lucky to have 711M T16 block which still has original height. Even engine number can be seen on top of the block.
    My quick calculation in my compression ratio workbook (with 32cc piston chambers) says you are at 12.15:1 with an 84mm head gasket with the gasket thickness and piston height you mention.

    This excludes valve protrusion so if your valves protrude above the head face you will be even higher than that!

    I think that's too much for a 224 cam but you're fortunate you have forged pistons.

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    Re: Kent 224 cam

    Can i keep 224 cam or should i swap it to 234 or 244?
    Which one is better?

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    Re: Kent 224 cam

    224 is a nice cam with low down torque prob around 115bhp but your engine spec would be more suited for 234 or 244 where you should be seeing 130 to 140 max i would of thought

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    Re: Kent 224 cam

    Which cam is more suitable for my Westfield / X flow?
    No racing but driving on fast road will be nice
    Car is very light, only 550 kilos.
    Should i keep 224 for lower torque or should i choose between 234 or 244?
    How 224 works with twin Weber 40 DCOE and Aldon electric dizzy?
    If i choose 244 do i need any modifications for pistons or head?
    Just check from Kent site that all of this cams will need same V7 double springs.

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    Re: Kent 224 cam

    4-to-1 manifolds aren't really good for torque so you've got to throw that into the equation.
    234/244 not as good for torque but due to you having a light car you will get away with it.
    234 would be the smarter choice if you don't plan on being at +5500rpm all day. There will still be good torque.
    244 has better power figures overall but the power comes later in the rev-range so if you want an engine that likes to make power at revs, that's the one to go for. As said fortunately your light car will be able to pull the 244 at low revs no problem. It just won't be quite as responsive as the 234 lower down.
    Accralite pistons shouldn't need any modification for 224/234/244 provided you aren't using ridiculous sized valves.
    Aldon dizzy and weber 40 will work with all 224/234/244.

    It's really too hard to be able to advise which way to go as one man's gold is another man's folly.

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    Re: Kent 224 cam

    i would go for the 244 because off the accralites and high compression, since your car is light it will be happy in the powerband of the 244 cam

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    Re: Kent 224 cam

    If games are done, I would try to put the cam in retard (or at least stright up) and keep a lower valve clearence (i.e. @0.30mm)
    all this decrease CR

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    Re: Kent 224 cam

    Quote Originally Posted by beex64 View Post
    Actually i donīt want to have any monster engine with a lot of rews and horses.
    I more like to have large torque band and long lasting engine with nice handling.
    Does 224 cam suit to my thoughts?
    Yes. The 234 will make more top-bhp and the 244 is a rally cam.

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    Re: Kent 224 cam

    If i keep 224, which positive and negative points iīll got?
    I think that if i keep 224 i donīt have to care about over revs (+ 6500 rpm) but my little bastard still running pretty fast.
    The difference between 224 and 234 cam is only 4 hp.(over GT-carbs) according to Kent cams information leaf.
    I reckon, when using twin Weber 40 DCOEīs difference between 224 & 244 might be around 15 hp.
    So, which one is better for light car? Lower torque or high power?
    I understand that my engine specs also can manage higher performance.

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    Re: Kent 224 cam

    personally the 234 is an ideal fast road cam, the 244 is a very good cam also but in my experience tends to drop off cam frequently when used in day to day situations but its designed for competition so has to be expected. whichever cam you choose you will soon get bored with it anyway and end up wanting 180hp and to go around frightning all the pets in the area (sound familiar?). if not using the car for competition avoid competition cams, simples. best of luck

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