What sort of increase in power would be expected from them compared to standard cams in a 3 door. and would it change the driveability much.I seem to remember reading thet bd cams con be lumpy whatever that means

 

i got a bd10 and bd12 cam, i would lioke to know too as i find the car laggy, cpuld this be the cams


but when on boost fook me it moves

 

Oh dear, do you know what you've just started

 

nothing by the sound of it

 

Wait until tomorrow!

 

still waiting

 

OK......give me a few mins - I've just got to do a search on my original post.....to save me tpying it all up again..........

 

Here you go the "short version"...............I would point out that quite a few on here have had similar experiences with BD10's....then again some people swear by them


IMO Standard cams are fine for up to 380 - 400 BHP.

I have tried BD10's and was VERY dissapointed - mainly due to the lack of mid range torque. This is in context of a Paul Bailey built engine to this spec:
Standard compression ratio, 200 'O' ringed block
STANDARD cams
Big valve, flowed head
Light Blue injectors
T38 (hybrid 360° bearing) rinning 26 PSI
2 WD exhaust manifold/ Maxnex system

I well known tuner suggested that I would be better off with BD10's fitted.....So I purchased the cams from him..................

Decided to do back to back tests at Interpro's rolling road......and YES - the BD10's were dialed in correctly on verniers/adjusted a couple of times too.
Standard cams (with offset keys): 404 BHP......396 ft /LBS torque
BD10's + verniers fitted: 392 BHP......358 ft/LBS torque

Needless to say the STANDARD cams were refitted

 

BD10's are known as the lag cams. Should be asking what you are losing like most of your lowdown Power/Torque.

 

suprising that,thought there would be a 30 or so bhp increase,wont bother with them then cheers doug

 

i WAS bidding on some too.

not now.


Dave.

 

and what cam IS better then standard for midrange and/or top end.

 

up

 

bd10 inlet and a standard exhaust to keep the midrange and low lag

 

so what about bd 14's are the standard ones as good or better?? I was looking at get 14's and yes I do have valve cut outs in the pistons.


Dave?