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Author C16XE Cams in X16XE
PaulW
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Registered: 26th Jan 03
Location: Atherton, Greater Manchester
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30th Apr 05 at 18:46   View User's Profile U2U Member Reply With Quote

Was talking to broster about this, he says that Velos Motorsport got good results from the X16XE when running C16XE cams in the engine, but he couldn't find any info on it & details were sketchy at best...

Seens as Velos are no more, I was wondering if anyone has had any info/experience on doing this?

Also, what is the main differences between the 2 cam sets, lift height/duration??

Thanks
Dave A
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Registered: 10th Dec 03
Location: County Durham
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30th Apr 05 at 19:01   View User's Profile U2U Member Reply With Quote

think the exhaust cam was different, not sure there was much difference in the inlet cam.

stick the post on migweb, probs get a better response there.
James R
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Registered: 4th Feb 03
Location: 205GTi16/306GTi16
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30th Apr 05 at 19:14   View User's Profile U2U Member Reply With Quote

I've got a set of C16XE cams kicking about, I'll be able to check the lift and duration of them and let you know.

and by "good results" do you mean gained 4bhp?
PaulW
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Registered: 26th Jan 03
Location: Atherton, Greater Manchester
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30th Apr 05 at 19:19   View User's Profile U2U Member Reply With Quote

no im not sure what they helped, broster couldnt remember either...

I know 4bhp will be a bit 'optimistic' due to the difference also with the heads (port/valve sizes)

[Edited on 30-04-2005 by PaulW]
Dave A
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Location: County Durham
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30th Apr 05 at 19:24   View User's Profile U2U Member Reply With Quote

ive just had my head ported and polished with bigger valves fitted, will be interested to know the outcome of this thread
PaulW
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Registered: 26th Jan 03
Location: Atherton, Greater Manchester
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30th Apr 05 at 19:40   View User's Profile U2U Member Reply With Quote

Cheers j1400

If there different from standard, I'm gona fit some to see what it does with some verniers & see exactly what I can get from them...

dyno run before & after...
James R
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Registered: 4th Feb 03
Location: 205GTi16/306GTi16
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30th Apr 05 at 20:45   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by corsa808
ive just had my head ported and polished with bigger valves fitted, will be interested to know the outcome of this thread


You've fitted bigger valves to an engine with valves that are already a bit big for it's output



Hey Paul, no worries, I'll do ones for my X14XE cams too, since I haven't got any X16 cams knocking about to test.
I stick it on excel and plot the graphs.

James
PaulW
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Registered: 26th Jan 03
Location: Atherton, Greater Manchester
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30th Apr 05 at 20:51   View User's Profile U2U Member Reply With Quote

much apreciated james!

I thought X14XE & X16XE cams were the same?? Cant check on EPC cos of the damn SP2 issue
James R
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Registered: 4th Feb 03
Location: 205GTi16/306GTi16
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30th Apr 05 at 21:32   View User's Profile U2U Member Reply With Quote

I was assuming they are, but you know assumptions are the mother of all ......

If you're lucky I'll have some pics you of a flowed head (GPR) on a CD for you look at of how to flow a head. I'm sure there's some knocking about.

broster
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Registered: 6th Dec 02
Location: Drives: E39
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1st May 05 at 10:32   View Garage View User's Profile U2U Member Reply With Quote

x16 and x14 cams are the same, c16 cams have a better exhaut cam..... paul ill send them up on tuesday...
AK
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Registered: 5th Jul 00
Location: Aberdeen City
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1st May 05 at 10:35   View User's Profile U2U Member Reply With Quote

i had the 'wrong' cams in my x14xe.... the were lumpy as fuck, bitch to idle (raised to to 1050rpm to get round that )

but by fuck did it have a punch at 3.5k wiped the floor with 1.4 16v with the 'proper' cams...

this was due to a mistake by piper... wasnt till after that i noticed they were non ecotec cams
Ant
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Registered: 12th May 02
Location: Hereford and Worcester
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1st May 05 at 10:35   View User's Profile U2U Member Reply With Quote

i think it was the orque curve that improved when running the c16 cams the bhp wasnt too much
AK
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Registered: 5th Jul 00
Location: Aberdeen City
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1st May 05 at 10:39   View User's Profile U2U Member Reply With Quote

had a quick look through pipers part lists now, but cannot see any distinction between c and x engines now...

http://www.pipercams.co.uk/NewPiperWeb/redesign/05cams/vauxhall_4_cam.pdf
James R
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Registered: 4th Feb 03
Location: 205GTi16/306GTi16
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1st May 05 at 11:14   View User's Profile U2U Member Reply With Quote



INTAKE EXHAUST


clearance [cl] 0.00mm 0.00mm
duration [0.1mm+cl] 241° 241°
duration [1.0mm+cl] 199° 199°
valve lift [cl=0] 8.45mm 8.45mm


Right this is the info I have for the std "X" cams so I will see if the cams I have from a C16XE are any different to the above.

But you can see how mild the std cams are, explains the poor std power that vaux inflicted on the engine. only 8.45mm and 240deg cams.
the redtops have 250 and 9.45mm.
ckallis500
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Registered: 14th Dec 04
Location: plymouth
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13th Oct 06 at 14:07   View User's Profile U2U Member Reply With Quote

c16xe's had cams with matching part numbers (i.e it wouldnt matter where you put each cam inlet or exhaust) strange this is tho that my old x14xe had matching cams in it when i fitted my piper ones, also when i re-built my mates astra x16xel that had the same matching cams which are normally found in c16xe's...

 
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