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General => The garage => Topic started by: Chris. on 19 November 2011, 19:53
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Does it really make any difference?
Would it make any difference on my setup Nick?
I have the chance to pick one up for about £50 and fitting would be nout so no loss there.
Worth it?
Chris
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I hear they can release a bit more power...
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How much though lol
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inlet or exhaust?.. :tongue:
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Inlet
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it worth fitting them if there hanging about ? have a dead 20v na i chould rob the cams out and try them in the passat if its worth doing
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its something id Like to do on the rollers though. To see what difference it actually makes back to back. That way, we have reliable results.
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Higher lift/longer duration?
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what is soposed gain ?
chould test it back to back on dyno without much bother but if it's naff all gain summoning the botherd
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- 20vt inlet 7.67mm lift
- 20vt exhaust 9.3mm lift
- 20v inlet 8.3mm lift
- 20v exhaust 10.4mm lift
From Vortex
If You plan to use big turbo and low boost, use both cams, if You plan to use smaller turbo and high boost, use only ex cam. If You plan to use tiny turbo and ridiculous boost, use only intake cam.
:afro:
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Looks good!
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passats only got a tiny turbo and low boost meh both cams are going in if it drives crap they can allways come out, need to sort the leccy out in ws then chould grind the cams :evil:
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Hmmm, would be interesting to see Nicks response to this!
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The theory is night and day, when i was tuning C20LET calibra turbo engine we used to use the C20XE NA cam shaft the stock and kept the exhaust cam stock, we spent around a year dialing in the cams on adjustable pulleys, and found a sweet over lap which gace 35lbft in the midrange and around 18bhp on the peak power on my T3.
I tried a NA cam on my AUm but had starting issues, I needed to fit piper pulley and set it up correct, but never had time to do it.
My current big turbo setup will be using a AGU with out the AUM VVT fitted and using a NA inlet dialed in on a vernier. I will let you know my results around March time.
I might pop the NA cam in TingTongs stage1 AGU next weet and dyno back to back... :wink:
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Do it!
I can pick one up for £50 so not a great deal.
Piece of piss to change over too.....no need to even de-time the engine, just the cams :)
Just all depends how they give the power across the map....anything torque related is pretty much out the equation for me since already running the rods on high torque and not really being able to go further safely in that department.
I guess you would have to have some adjustments to the map for a NA camshaft?
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Do it!
I can pick one up for £50 so not a great deal.
Piece of piss to change over too.....no need to even de-time the engine, just the cams :)
Just all depends how they give the power across the map....anything torque related is pretty much out the equation for me since already running the rods on high torque and not really being able to go further safely in that department.
I guess you would have to have some adjustments to the map for a NA camshaft?
Not much in a map to chnage for a cam on a turbo car, just timing really but map changes would be down to a lot of logging and air flow logs vs power and adjustments.
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I looked at a polo with a 1.8T k03s setup, actuator shut, NA cams etc... Here's there graph:
(http://img845.imageshack.us/img845/2902/img0034custom2a.jpg)