Where to get custom cams?
Turbo Mini Forums

Ive been thinking about getting some cams made up, but have no idea where to go, and what info I'd need to give for some to be designed and ground?

Any ideas chaps? Anyone recommend any companies?

Cheers
Matt

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1/4mile in 13.2sec @ 111 terminal on 15psi

I got both Piper and Kent to quote for re-profiling my K100 cams.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

Piper apparently are very good.

il do it for ya.....lol

If you are going to have some existing ones reground then you need really to graph the existing, then see what profile you can fit beneath the existing curve by reducing the base circle.

The profile isn;t that hard really, you need to ensure that there is a seamless transisition between the opening ramp, lift ramp, fall ramp, and close ramp.
Ensure acceleration rates are sensible. Then decide on valve lift and duration, but check it will fit on the cam.

I did my final year project at uni on camshaft design so know a little about it...

i've heard newman cams are good.

Best 1/4 mile 13.2 seconds @116 mph
First 5 port miniturbo to make over 200 bhp on a carb?
First 5 port miniturbo to make over 200 bhp on Injection?

http://www.mattwoodsphotography.com

You'll find a certain northern chappie with a titanium habit who doesn't agree with that one Matthew!!!!

like most places people have good and bad things about them i guess

Best 1/4 mile 13.2 seconds @116 mph
First 5 port miniturbo to make over 200 bhp on a carb?
First 5 port miniturbo to make over 200 bhp on Injection?

http://www.mattwoodsphotography.com

I've heard the same about Newman being good.

I run a supercharger and I don't care the TB is on the wrong side.
VEMS + 12 PSI + Liquid Intercooler = Small Bore FUN!

So what info would I need to give them?

Tom, where did you get your info from on cam design?

Im guessing valve size, boost, cfm of head?, CR, where abouts the rev range I want the power?

Paul, how much did they quote, if you don't mind me asking?

Edited by matty on 10th Mar, 2010.

https://www.facebook.com/pages/Fusion-Fabri..._homepage_panel

www.fusionfabs.co.uk



1/4mile in 13.2sec @ 111 terminal on 15psi

diameter of follower and the max that can be taken of the base circle may be needed.

You are all assuming that he wants to increase the lift and duration.

My guess is that he wants to drop the duration of the K1100 cams. In which case you only need to skim the base circle and re-do the profile with a steeper ramp.

Both Piper and Kent quoted around £200 to do the pair of K100 cams

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."

theres really two questions here matty ,

one ,who to design it ,

two ,where to get it made .,

the other things to decide are ,what shape of power band you want ,and where you want pk torque and bhp .these things are dependant on gearing ,weight of car ,and flywheel ,octane of fuel and detonation likelyhood with the head/cooling design ,also the personality of the engine is prmarily dependant on the cam design ,so that also comes down to you personal preference .

the info needed will be a full airfow plot of the head ,after its in a finished state of whatever porting your going to do to it , the profile it uses at the moment ,with any power curves .along with all the basic engineering data on the engine ,cam bucket dia ,is vital to help find the available acceleration rate on the cam ramp.
the weight of all valve train components that will affect valve spring design will also be needed.

thses are the sort of things i ask for when i design cams ,so if you dont get asked for this data ,chances are it wont be a set of cams tailored to your engine .
it may be you'd be happy with a generic set of cams ,and so save money ,or would prefer a specific design for your engine and create the sort of personality and torque curve you particularly want ,it all comes down to personal choice .



regards
robert .

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

bit of general stuff here matty,,

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=8331

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM

Geez thats ALOT of info to take in, I'll have to read that a good few times for it to sink in.

So would it be advisable to slap my engine back together, and get some power/torque readings on a dyno to see where its at?

Obviously being twin cam you have a bit more play in the timing, but how does changing the LCA effect the drivability of the engine? e.g. does it change where peak power is or torque curve etc..

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1/4mile in 13.2sec @ 111 terminal on 15psi

yes .use what you have and see ,its timed at a good place lsa wise ,with the right turbo you should realize your goals ..

Medusa + injection = too much torque for the dyno ..https://youtu.be/qg5o0_tJxYM