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View Full Version : who's fitted a catcam?


Andrew Cooke
13-07-2009, 13:08
how did it time up, did you need to use a vernier, or was it fine with a standard pulley?
jesus in the seat of a 5
13-07-2009, 14:27
i know nayls and sparkie fitted one to garys car but im not sure what other parts they used and what garys experience with it in was , maybe you could pm them and ask directly....:)
JRP
13-07-2009, 15:16
Did nayls have the car long enough to tell if it was any good ?:scared:
Sparkie
13-07-2009, 16:53
i fitted one to the turbo 2, and i'm sure it definately needed timing up.
Spooky
13-07-2009, 16:56
ive got one...havnt fitted it yet tho :D
Andrew Cooke
13-07-2009, 17:41
ive got one...havnt fitted it yet tho :D

chop chop, we need data....

that, or let me measure it :D
paul b
13-07-2009, 19:59
i fitted mine and didnt use a vernier....i admit i only gave it the once over by eye to see if it was "close"....popped it in and then run it in as described...lumpy idle , set at 850rpm and no worries..you do have to modify the valve follower or move the lock nuts on the adjusters to be able to lock the nut tightly.

have to say she started first time and also seems to pull very very well on track with a T25 hybrid..ask any passenger at Mallory last year...only my opinion and not verified by data aquisition....

your house,car and mother are at risk if you do not keep up repayments:ashamed:
Spooky
13-07-2009, 21:21
chop chop, we need data....

that, or let me measure it :D

when shall i pop down ?
Spooky
13-07-2009, 21:24
I was planning to build a new engine and stick the cam in it but I think I may just fit it into the one already in my car...

It'll go well with my 'small' turbo :laugh:
olidaviesuk
13-07-2009, 21:45
was very close, about 1.5deg out... measured it a fair few times to be spot on as well, surprising as ground from blanks rather than a regrind, would like to think for the money they'd be spot on...


how did it time up, did you need to use a vernier, or was it fine with a standard pulley?
Andrew Cooke
13-07-2009, 21:47
was very close, about 1.5deg out... measured it a fair few times to be spot on as well, surprising as ground from blanks rather than a regrind, would like to think for the money they'd be spot on...

that's pretty good, how accurate do you think the standard crank and gears are?
olidaviesuk
13-07-2009, 22:06
not sure tbh, was the first time I dialed a cam in on a 5 when I rebuilt the engine, hence, found tdc on the piston with the head, off so got bang in the middle of the dwell time fairly easily... (i've always been taught to use lift at TDC method to measure the cam timing) must admit the TDC mark on the box and timing marks on the small cog were way out, would have thought using the standard gears, chain and crank, could be as far as 5deg out either way, if not more...


that's pretty good, how accurate do you think the standard crank and gears are?
Scoff
13-07-2009, 22:07
I've fitted one, it didn't need timing. One of BB's GT285's.
Andrew Cooke
13-07-2009, 22:21
sounds like it'd be a fair bet that you don't need a vernier:agree:
Spooky
13-07-2009, 22:31
Ive got a BB cam, its a 5500327, got it from CGB...sooooo...won't be needing the vernier I have for it then...:crap:
rich-hgtt
13-07-2009, 23:42
Have people replaced the followers, no? had any problems with wear??

I'm interseted in a cat cam but not if all the follewers need changing. I can live with up-rating the valve springs.