MJ
Member
Registered: 18th Sep 03
Location: Hampshire Drives: ITR DC2 + Skoda Felicia
User status: Offline
|
I recently fitted a Piper Camshaft Kit KBV 13270H to my Vauxhall Corsa 1.2 8 Valve C12 NZ engine 1994. I fitted new Valve Springs and lapped in the Valves.
After fitting the Cylinder head I aligned the timing marks as stated in the manual and fitted a new cambelt.
The problem I am experiencing is a uneven idle and stalling and also a very bad flatspot when you pull away and up to approx 3000rpm then the engine appears to respond slightly better than the original camshaft.
Before we changed to the Piper camshaft the engine performed well and we hoped to see a performance gain, but this is not the case.
Could you possibly tell me if you still align the timing marks as standard or do you have to adjust it to a different position when you fit the Piper camshaft. i think i need to use a timing disc but i dont have one with the cam as it was 2nd hand.
Any info would be very appreciated.
Cheers Mark 
[Edited on 08-08-2004 by mark_jarman1]
|
Adam-D
Member
Registered: 11th May 02
Location: Cheshire
User status: Offline
|
you may need a piper adjustable pulley that needs to be set up on a roling road
|
Rileysport
Member
Registered: 18th Jun 04
Location: West Yorkshire
User status: Offline
|
have u got the valves done right?, did you replace tappets etc or move em around... the need to go back where they came from, or be replaced with new
|
MJ
Member
Registered: 18th Sep 03
Location: Hampshire Drives: ITR DC2 + Skoda Felicia
User status: Offline
|
yer all the valves are correct and they have be grounded in, all seals and gaskets have been replaced. tapets have been cleaned and every think been put back from where it come out from.
|
MJ
Member
Registered: 18th Sep 03
Location: Hampshire Drives: ITR DC2 + Skoda Felicia
User status: Offline
|
ttt
|
Greasemonkey
Member
Registered: 17th Apr 02
Location: Drives a Tractor
User status: Offline
|
Dont forgett that a performance cam will lose you low down power. If its wild enough it will mess with i idle also, Ya have to get the revs up before the cam gains kick in but still you will only be looking at a few horses
|
Kris TD
Member
Registered: 25th Mar 02
Location: Ware, Hertfordshire
User status: Offline
|
as grease monkey said.
if its a wild cam then expect rough idle and no low down power.
|
MJ
Member
Registered: 18th Sep 03
Location: Hampshire Drives: ITR DC2 + Skoda Felicia
User status: Offline
|
how its running at the moment is undrivable to get the revs up takes years. i think it is the timing disc as the engine is getting hotter. the cam is only a fast road cam so its not that much more wild.
|
PaulW
Member
Registered: 26th Jan 03
Location: Atherton, Greater Manchester
User status: Offline
|
could also be fueling, as there is only 1 injector remember...
I think it was in total-vaux, they were doing a 1.2 8v tuning guide & said that fitting a larger injector from a 1.4 & a adjustable fuel-presure regulator will help to supply more fuel & tweak it with the regulator till you get it setup right, but also like adam says maybe a vernier may help to sort it too by adjusting the timing slightly
|
MJ
Member
Registered: 18th Sep 03
Location: Hampshire Drives: ITR DC2 + Skoda Felicia
User status: Offline
|
where can i get a pulley from as i cant find one.
|
Rileysport
Member
Registered: 18th Jun 04
Location: West Yorkshire
User status: Offline
|
for a kent cams one: http://www.larkspeed.com/index.pl?c=KENTPULLEYALOY
|
MJ
Member
Registered: 18th Sep 03
Location: Hampshire Drives: ITR DC2 + Skoda Felicia
User status: Offline
|
but mine is a piper cam
|
Rileysport
Member
Registered: 18th Jun 04
Location: West Yorkshire
User status: Offline
|
Shud still work as far as i know... ask the question mate
|
Mark Petty
Member
Registered: 26th Jul 01
Location: Bournemouth Drives: Suzuki gsf600
User status: Offline
|
How many BHP should you gain once sorted?
|
MJ
Member
Registered: 18th Sep 03
Location: Hampshire Drives: ITR DC2 + Skoda Felicia
User status: Offline
|
dont know yet.
|
