whats the best set of cams to use in a cosworth running a t4 and around 2.2 bar for fast response and good power

 

any advice and sugestion wellcome

 

top secret

 

rapidcossie
whats that a standerd cam

 

ive got twin bd 14s,but it aint the quickest responding t4 on here


but i like it

 

No my cams are very very far from standard.

You can buy them off the shelf but that as much as Im saying as alot of time and testing went into getting the right ones.

My power band is one of the widest I have seen on a T4 so must be the "right" ones

 

T4 and fast response....

 

wimwerf
what do you mean m8

 

rapidcossie
i have bd14s on mine and its lost all low down but revs real nice once on boost but i still think my bd14 inlet and my bd10 set up wasy much better thats why i am asking on here what people have

 

Top secret = dont know the specs

Ive only fitted a pair of BD10's in mine, just to try and keep it from being too peaky.

 

what do you mean by peaky

 

Cossie 604, I know EXACTLY the specs of my cams.

mines revs low down and makes peak power at 8k....magic cams

 

How about:

BD16 inlet
BD14 exhaust

Or:

BD15 inlet
BD12 exhaust

 

15 and 12 is a good combo

 

What happened to sharing info? I thought this was the whole point of the site?

 

marco polo
could you give a explanation why you would chose this set up 15 and a 12
what about the 14 inlet and bd10 ex

 

Did everyone share the cost of my RR time?

 

Il give you a quid.. Whats your paypal Ad

 

ok its a deal...you can have the whole map for a fiver

 

up to you mate, but i thought the whole point of this site is we share info so we don't all have to spend Ł1000's on every little bit of our car I have been helped out a few times by people on here, Diva and a bloke called david with lots of info on how to convert a 4x4 saff to 2wd, gave me finis codes for parts that they had researched.... a few people asked me for the number and I gladly shared it, as that is the whole point of the forum in one way

Up to you mate, If thats what floats your boat you go for it

 

I know what you mean wil but its taken a long time and ALOT of cash to get my engine where it is now.

I wont just give the spec out so anyone can build one.

 

ok back on the topic what have people tried and on a t4 turbo what gave best response

 

Seems fair to me...


RWD_cossie_wil

up to you mate, but i thought the whole point of this site is we share info so we don't all have to spend Ł1000's on every little bit of our car I have been helped out a few times by people on here, Diva and a bloke called david with lots of info on how to convert a 4x4 saff to 2wd, gave me finis codes for parts that they had researched.... a few people asked me for the number and I gladly shared it, as that is the whole point of the forum in one way

RWD_cossie_wil Im sure Euan will be only to glad to help in other areas' After all we are all enthusiasts

 

If you want good response, keep the exhaust cam as standard . Limits outright power, but helps bring the boost in earlier.

Euan,
I bet my power band is wider - ner, ner, ner, ner, ner .

 

i can also understand that to some extent, but you're not in a race series where giving away information like that will help the competition or are you effectively in a race with all of this top speed bollocks?

 

but what sort of topend could be seen with a t4 and 2 bar and how much loses are we talking about because so far my bd14 and my bd10 hase been the best all round

 

Well if that is what you have found for your spec of engine - use them then .

 

is it a good combination then

 

You just told us it WAS .

 

Mike Rainbird
yea but i was asking you if this is ok interms of combination yes i found it better but wanted to see what others have tried and what they also found using different cams so far i have tried bd14 in and std ex cam i have also tried bd14 inlet with a bd10 ex and a bd14 in with a bd15 ex and bd14 in with bd14 ex

 

ABDR, you've tried lots of cams but have they all been timed up correctly?

I. E. optimised for your engine spec/CR ???

 

L8 ECU
yep all was done on the rollers and timmed up

 

Would be interesting to see RR graphs from these different cam combinations.

 

New engine is cheating tho

 

I have over 300lb ft from 3500 - 8500 .

 

on the new engine tho, with its gay bar throttles and bigger capacity

 

pair of BD16's

 

My OLD engine still had over 360lb ft from 3500 to 7000 . The new engine is the same, but has an extra 1500rpm to play with, and torque obviously drops off at high rpm . Old engine (with the shorter duration cams) is still more grunty at 3000 - 3500, but you have to make sacrifices somewhere .

 

yrkesman
thats a good point and i have them right here but dont seem like any one wants to share ther find outs so i wount be ither

 

Abid,
People have told you, but you have then found that the ones that you have used give BETTER results on your particular engine . I had standard exhaust in my old Sapphire, at 2.2 bar it made 515.4bhp on the dyno and REGULARLY did 180+mph.