Corsa_Scotty
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Registered: 8th Aug 07
Location: Scottish Borders
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Hello Guys. Im fitting another X14XE in to my car but was thinking about fitting a set of fast road cams whilst its out. I had a look on Autosprints website and they list a few different specifications which im not too sure on. Im not wanting to go crazy with the engine the only mods it will have other than the cams is a VX inlet manifold an 4-2-1 exhaust manifold so i need a kit which will run on standard management. So far ive seen 245degree- Hydraulic - Standard Injection and they also list 256degree ones too but doesnt list anything about standard injection. Can anyone shed any light on these and what i need to fit them? Cheers Scott 
[Edited on 08-09-2011 by Corsa_Scotty]
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ffls
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Registered: 29th May 02
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preferably you need a remap or chip to get the most from them.
They also don't say nothing about the lift...
And better change the valve springs for new ones if you don't want the valves hitting a piston because they are tired. IT happened to me, 4th piston broken in 1000 pieces
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philip2
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Registered: 1st Oct 06
Location: n.wales/chester
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that coment about changing springs is aload of bollox...what spec/lift were the cams? standard springs even though done quite alot of miles by now are still good to run about 10.5/11mm lift before needed heavy duty singles or even double springs. the one area to change are the valve spring tops as they DO split in 2 even on standard engines.
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Corsa_Scotty
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Registered: 8th Aug 07
Location: Scottish Borders
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Yeh ive heard mixed story's about the valve springs so wasnt sure on what to do. I would be planning a chip once its all done anyway so thats not a problem. Just struggling to choose between the 245degree ones and the 256degree's but as you say it doesnt list anything about the lift
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ffls
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Registered: 29th May 02
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quote:
Originally posted by philip2
that coment about changing springs is aload of bollox...what spec/lift were the cams? standard springs even though done quite alot of miles by now are still good to run about 10.5/11mm lift before needed heavy duty singles or even double springs. the one area to change are the valve spring tops as they DO split in 2 even on standard engines.
But mine were worn after 70k of driving many times till 7200rpm. My cams were standard
A 11mm lift cam without pocketing the is asking for trouble.
And for a 10mm lift cam Dbilas advise different springs then standard ones
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corsadonk
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Registered: 4th Jul 09
Location: Marlborough, Wiltshire
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Speak to Geoff at Autosprint, he is very helpful and knows the speck of the stuff he sells.
I would leave the standard cams, and go for piggy back ECU, like Uni-chip. Make the most of the bolt on mods you've already got.
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Corsa_Scotty
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Registered: 8th Aug 07
Location: Scottish Borders
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I was just thinking for further in to the future as i was planning to go for carbs or throttle bodies so thought i'd be best off adding cams and then a decent management to go with it once the carbs are on? 
[Edited on 08-09-2011 by Corsa_Scotty]
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philip2
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Registered: 1st Oct 06
Location: n.wales/chester
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i could supply some newman 260cams, run about 9.5mm on stock pockets(have to check website to confirm though - valve lift i mean)
talk with engine builders matey...not companies they will sell you anything they think you will need. standard 20xe springs will take 11mm lift before they suffer from coilbind...i didnt say you could run 11mm lift on stock pocket pistons and be ok...you would have to do a dummy build and check
the standard springs will work with a 270duration cam with about 10.5mm lift but would need to change the spring retainers for definate as been known to split on standard engines quite alot.
im breaking my c16xe if were after proper parts...omega pistons, steel rods, catcam double springs, steel retainers, bike carbs, sbd manifold etc. or look at the cheaper option or arp rod bolts and getting the standard pistons pocketed a further 2mm and could run some 288s with 10.6mm lift and be ok.
donk...as said before...geoffs spring retainers are no good...ive had a failure and i know a few others too. hes a sound bloke but some of the parts id be weary of.
i typically only use piper double springs and caps in any of the 20xe/lets i build, so far so good
[Edited on 08-09-2011 by philip2]
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Corsa_Scotty
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Registered: 8th Aug 07
Location: Scottish Borders
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What sort of price do the newman 260's come in at mate? and also can they run on standard springs?
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Alex_Rally
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Registered: 6th Sep 09
Location: Tyne and Wear, gateshead
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philip doesnt it weaken the piston if u pocket it tho ??
what sort of prices are u selling ya c16xe bits for ?
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Corsa_Scotty
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Registered: 8th Aug 07
Location: Scottish Borders
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His bits and pieces are in here mate
http://www.corsasport.co.uk/board/viewthread.php?tid=614617
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matthew H
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Registered: 7th Apr 09
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email this guy for advice http://billfalconer.webs.com/
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Corsa_Scotty
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Registered: 8th Aug 07
Location: Scottish Borders
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He's about 40 miles away from me mate so might give him a shout
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Alex_Rally
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Registered: 6th Sep 09
Location: Tyne and Wear, gateshead
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good website that matthew
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philip2
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Registered: 1st Oct 06
Location: n.wales/chester
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goos site, but id be abit dubious about the power figures hes claiming for wet sump apps tbh.
geordie..what bits would you be interested in?
the problem with pocketing is they can weaken very slightly, but the biggest problem usually is heat problems tbh. but its the differance between £80 to machine stock pistons and £450 for some forged pistons and £100 for overbore.
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Alex_Rally
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Registered: 6th Sep 09
Location: Tyne and Wear, gateshead
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the big cams and the omega pistons mate, and poss springs
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philip2
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Registered: 1st Oct 06
Location: n.wales/chester
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You would need the rods to go with the pistons matey, open to sensible offers, but give u idea on what I paid; pistons 450, rods 300, cams 330, and springs I'd have to see what they were can't find receiptn but if go on catcams website there the 'gold' series race double springs.
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john_c20xe
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Registered: 10th Feb 08
Location: Eastbourne, EastSussex
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quote:
Originally posted by ffls
preferably you need a remap or chip to get the most from them.
They also don't say nothing about the lift...
And better change the valve springs for new ones if you don't want the valves hitting a piston because they are tired. IT happened to me, 4th piston broken in 1000 pieces
rubbish! how can worn springs make the valves hit to pistons? and ive never ever seen a pistons brake into pieces let alone 1000 pieces! think someone is telling porkeys
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ffls
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Registered: 29th May 02
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Man what about the valves not recovering an hitting the piston?
And about the piston you can believe in what you want, I didn't count the pieces of it, many were welded to the combustion chamber and the mechanic who then made my new motor said he never saw nothing like that. I have no photo to prove it but you can believe in what you want
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philip2
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Registered: 1st Oct 06
Location: n.wales/chester
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You can get valve bounce from revving too high to weaken the spring or too high lift cam for the springs...done well to twat a piston to bits from just a weak spring if drivin within spec, sure you didn't frop valve due to over revving on down change?
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john_c20xe
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Registered: 10th Feb 08
Location: Eastbourne, EastSussex
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That's what it sounds like to me I've seen it done when someone has chosen 3rd instead of 5th and the cambelt slipped teeth and don't some damage but was only minimal markings on the pistons
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john_c20xe
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Registered: 10th Feb 08
Location: Eastbourne, EastSussex
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I've also seen a ford focus piston with a valve lodged in it from and inexperienced mechanic changing the cambelt and starting it with out turning it over by hand. Ended up having a replacement engine due to the damage the valve done to the head and piston
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ffls
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Registered: 29th May 02
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Well the car had 80k, x14xe at the time with a powerbox, standard cams, and rev limiter of 7500rpm.
I was chasing a friend trough some corner on third gear at 7000-7200 rpm when suddenly I listened to the sound of a "crystal glass broking" and end of the game
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philip2
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Registered: 1st Oct 06
Location: n.wales/chester
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Sounds abit like valve bonuce or very unlucky as stock springs aren't to bad tbh
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john_c20xe
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Registered: 10th Feb 08
Location: Eastbourne, EastSussex
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i dout you would have herd it tbh as its the cylinder is inclosed in thick metal unless it threw the rod out the block
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