RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
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if i were to fit a pipercams 280deg kit to my c16xe, i think i will need to have the pistons pocketed? does anyone know roughly how much? and also if i would need to uprate anything else head wise? valve springs etc? 
not to clued up on engine internals really
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RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
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just read further down the page of the pipercams site and the kit includes valve springs and followers
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Siberia
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Registered: 9th Oct 03
Location: Leprechaun Land Drives : Zafira GSI
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i think i'm right in saying anything over 264degree cams will nee pocketed pistons on a c16xe.....
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RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
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thats what i thought.
seen on the kent cams site, there is a coloumn for valve clearance
for 244 cams, there is 0mm
but for everything else it says 0.25mm
[Edited on 30-08-2005 by RobHayes]
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Stu_22
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Registered: 25th Mar 02
Location: Luton
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if you can take the pistons out your self then its not to expensive
I dont like the idea of cutting into the piston get some forged jobs and wilder cams
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AK
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Registered: 5th Jul 00
Location: Aberdeen City
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wilder than 280???!!!???
..... take it its running TB's, ECU verniers etc?
new pocketed forged pistons can be had for about 4-500.....
if you were to pay someone to strip pistons out, mill them, then re-fit is it worth it?
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RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
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i've got 2 spare sets of pistons, and can get the work done for free at work hopefully
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RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
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running TBs and MBE management, getting verniers with the cams, need engine rebuild anyway, rings gone, so just thought while it was apart i might as well
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AK
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Registered: 5th Jul 00
Location: Aberdeen City
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may as well then if you can get the machining for free  and its getting rebuilt anyway 
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RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
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yer, i just need to know how much to get machined out
the pistons are already pocketed as standard i think, so the pockets just need deepening??
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AK
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Registered: 5th Jul 00
Location: Aberdeen City
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you'd need to speak to the cam suppliers.... find out lift etc
yup, just deepen the pockets
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RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
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so i need to find out the difference in lift etc from the standard cam, and machine out enough so that there isnt a collision between piston and valve
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AK
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Registered: 5th Jul 00
Location: Aberdeen City
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yup
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RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
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thats out the pipercams catalogue, with the set i want circled in red
there is a column at the end called valve clearance, but it just says "hydraulic" in it. what the hell deos that mean
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miles
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Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
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I thimk it was 60 thou deeper pockets & 25 thou off head to balamce out (& imcrease) compressiom.
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miles
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Registered: 25th Mar 02
Location: plymouth Drives: Astra Sport
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I had the slightly lamer BP285 im mime amd it ram fime, smoothly.
Excuse the brokem keyboard!
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RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
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is that imperial or metric?
0.060" or 0.060mm
i assume imperial as 0.060mm is bugger all
**edit** just looked at the grid, and for the bp285 kit it says the lift at tdc is 0.058"
and for the bp300 kit its 0.108"
so would i need to have 0.110" machined out?
[Edited on 30-08-2005 by RobHayes]
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
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from what iv been told by j1400, 2mm pockets are what you need for 284 kits, also look at cat cams, they are good and alot cheaper. the actual pocketing is about £100 ish maybe less depends where you go. its the work involved.
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RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
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0.110 x 25.4 = 2.794
??
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X 60RSA
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Registered: 20th Aug 01
Location: Lincoln
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sorry to but in, u on nights this week rob?
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RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
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yep, dunno if to come in early or not, dont know what work is there
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X 60RSA
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Registered: 20th Aug 01
Location: Lincoln
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Mmm, i might go in for 8......i hope your rebuilding you 16xe to the daddy's! No more smoke rob lol It went well against my valver bottom end........bronze valve guides...
I read up alot about valve springs and the material they are made of and important factors, quite good but cant find it!
Also some places advertised clearances arent what they say they are, not very accurate anyway.
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RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
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just emailed a company asking for a price to rebuild my head with new valves and new guides, triple angle valve seats cut, 278deg cams fitted and vernier pulleys. also head skimmed flat.
as far as im aware the head has already been ported and polished etc
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X 60RSA
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Registered: 20th Aug 01
Location: Lincoln
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Does porting involve matching to your inlet and exhaust or not?
Have you thought about getting a quote from SBD.........i know they work on 20xe's alot.
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RobHayes
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Registered: 6th Sep 03
Location: Lincolnshire
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going to see what this company comes back with first
probably £600-£700 
might email SBD now and see what they can do
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