cosworthbg

When talking about big HP conversions,people say they use "secret" cams.
What is so secret about these cams or this is the trade mark name

rapidcossie

i found that too, when researching cams for my car!

basically no one wants anyone copying there cam choice.

thats why my final choice is secret too!

got them from Mountune tho!

GARETH T

its the easyest thing to keep secret when building a yb,, and has a big effect on how the engine performs, so they are kept secret

Mike Rainbird

iTrader: (3)

Euan,
So K2s then .

rapidcossie

nope!

Stavros

Secret just makes you look special, like youve done some real research into your cams, when in reality you dont really understand the effect of different lift and duration on turbo engines and just used some off the shelf ones that seem to work well

"Secret" Zetec turbo cams usually means standard 130PS ones

cosworthbg

Is this the same for YB's

GARETH T

cosworthbg,

no,, secret cams for a yb are normaly bd14, bd15's or k2's

Glass Eye

the secret cams myth is all bollocks the secret is the cam timing and the setup/mapping that follows.so rainbums chummy tuner tells me ROFL

rapidcossie

i could tell someone the spec of my cams....but then i would have to kill them!

CozzyBrom

some ppl will blatently rip you off aswell
sellin you somthing that isnt what they say it is
like difent inlet cam and standard exhaust cam and charging for a pair of hi lift cams

Alg1k

iTrader: (2)

Unless your tuner really knows what he,s on about and does have them ground especially for your engine

Martin-Hadland

iTrader: (2)

[quote="Itsmeagain"]Secret just makes you look special, like youve done some real research into your cams, when in reality you dont really understand the effect of different lift and duration on turbo engines and just used some off the shelf ones that seem to work well

quote]

not true

Rab

I put a new cam in mine yesterday.

My secret spec. Is................................................ ..................................




































Totally bog standard...................

Glass Eye

reground my ass,, pair of bd15s suit you sir ROFL

Karl

I always chuckle to myself when I read posts like this.

The honest truth amongst all tuners is you will find that for most "normal conversions" i.e. conventional 400bhp conversions etc you will find there are plenty of off the shelf cams that are adequate.........e.g. K2's, BD15's,16's etc. For these applications where hydraulic followers are adequate then it is the combination of these cams and the timing that is kept secret so that Joe BLogs on the street can't benefit with the knowledge for free!

However on all engines that I build that are 450bhp+ it is rare that I use off the shelf cams. Many of my engines run solid lifters and for these there are no "off the shelf profiles". In addition there are no suitable "off the shelf cams for engines with std pistons i.e. no valve cut outs, and for these engines I again developed my own hydraulic profile to improve on the std BD8 but prevent valve/piston contact.

Thus for people to think that tuners really don't have their own profiles is rediculous!!!

I for one always chat with Martin about cam profiles when we meet up, and can assure you that we both run can profiles in our engines that are vastly different from what you can buy over the counter and we certainly are'nt going to give that info away at any cost as it's taken time and money to evolve these profiles!

Hope that helps break the myths!!

allsteel

Pleased about that Karl,cos my new motor has secret spunky cams.

Alg1k

iTrader: (2)

Yes im SURE they would work with solid tappets

morcheen

how much bhp can you make without changing your cams,on an esc cos? my brothers old car made about 415bhp,with standard head too. is that the limit?

yrkesman

How much are these "secret" cams? Any rough price for them?

Anonymous

You just missed the point im afraid, Karl is saying when he specs a complete engine he is building he keeps the cam profile a secret, therefore they arent available to just buy on there own.

Someone like newman will grind you cams to whatever spec you want for a couple of hundred quid a stick but its the knowledge as to what to ask to have grind thats kept quiet.

rs shawn

Sounds rivetting conversation Karl