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Author Topic: High Lift Cam on 16v  (Read 2222 times)

Offline andykram

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High Lift Cam on 16v
« on: 22 February 2012, 19:38 »
The Mk2's been in the pits for a week or so having a suspension refit, a service and other little bits and bobs. My mechanic reckons it has a high lift cam which explains why it sounds a bit chuggy at tickover even though it's as sweet as a nut on the road.
Could one of you experts out there explain what the high lift cam is please? Why would a previous owner have fitted one? Why does it make the engine a bit chuggy on tickover? etc. etc.

Sorry if these are dumb questions but I consider this as all part of my Mk2 education and you are all contributing my learning.

By the way I've had the car on ramps - it's as clean as a whistle underneath and now it's running on standard suspension with fully refurbed wheels it looks a cracker
(Anyone want any second hand Koni springs and dampers by the way?)
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Offline lemski

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Re: High Lift Cam on 16v
« Reply #1 on: 22 February 2012, 20:10 »
the cams in the head. they'll have a bigger lobe to keep the valves open for a longer duration to get more air and fuel in and out the cylinder quicker. you gain power from it, normally u buy other mods to go with the cam though
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Offline andykram

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Re: High Lift Cam on 16v
« Reply #2 on: 22 February 2012, 20:22 »
I thought as such.

Mods such as?
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Offline lemski

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Re: High Lift Cam on 16v
« Reply #3 on: 22 February 2012, 20:24 »
might not have any. but balanced crank, lightened flywheel. panel filter. 4 branch exhaust manifold. thats to name a few. on there own they dont really achieve much
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Offline Sam

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Re: High Lift Cam on 16v
« Reply #4 on: 22 February 2012, 20:25 »
Quote from: andykram on 22 February 2012, 20:22
I thought as such.

Mods such as?

For a start you would be looking at induction and exhaust modifications. Its fair enough having it open for longer but if the air isnt there its fairly pointless, same applies on restrictions on getting rid of exhaust gasses
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Offline danny_p

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Re: High Lift Cam on 16v
« Reply #5 on: 22 February 2012, 20:29 »
headwork  :smiley:   16v's really like a bit of headwork to go with a cam
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Offline andykram

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Re: High Lift Cam on 16v
« Reply #6 on: 22 February 2012, 21:09 »
It's certainly not got an induction mod. I'll ask my mechanic to look atthe other bits
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Offline The Mighty Elvi

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Re: High Lift Cam on 16v
« Reply #7 on: 22 February 2012, 21:17 »
It's a bit like hiring a hooker with a massive gob and you having a small c0ck.

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Offline clipperjay

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Re: High Lift Cam on 16v
« Reply #8 on: 22 February 2012, 21:19 »
Quote from: The Mighty Elvi on 22 February 2012, 21:17
It's a bit like hiring a hooker with a massive gob and you having a small c0ck.



Hope thats not real life experience Jon?  :grin:
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Offline The Mighty Elvi

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Re: High Lift Cam on 16v
« Reply #9 on: 22 February 2012, 21:38 »
Quote from: clipperjay on 22 February 2012, 21:19
Quote from: The Mighty Elvi on 22 February 2012, 21:17
It's a bit like hiring a hooker with a massive gob and you having a small c0ck.



Hope thats not real life experience Jon?  :grin:

Of course not Jay.

it was a simple analogy to highlight the fallacy of having and engine with "good breathing" and crap other stuff.

Me love you long time.

 :kiss:

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