Whos used a BD14 exhaust cam
11-06-2011, 06:31 PM
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Great thread this,very helpful, I am pondering over ex cam choice right now.
11-06-2011, 06:35 PM
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Quote:
Originally Posted by
1374lee
Great thread this,very helpful, I am pondering over ex cam choice right now.
The BD14 exhaust cam only works well on a very few specced engines and on most it doesnt work that well.
Mark
11-06-2011, 07:09 PM
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Quote:
Originally Posted by
Mark Shead
The BD14 exhaust cam only works well on a very few specced engines and on most it doesnt work that well.
Yes Mark, you know what my bd14 was like,you said it was lazy coming on boost.I am 99% going back to a standard ex cam as you suggested,the bd14 is coming out for sure.Can only improve the car as you said before.
Thanks.Lee.
11-06-2011, 07:46 PM
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So is there an alternative over the standard ?
11-06-2011, 08:09 PM
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Sorry to jump on this thread but what effect should the change from a BD10 ex cam back to standard have ?
11-06-2011, 09:03 PM
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BD10 is well known as the lag cam put a standard one in and it change the responce for the better Neil
11-06-2011, 10:46 PM
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Quote:
Originally Posted by
Jay_
BD10 is well known as the lag cam put a standard one in and it change the responce for the better Neil
but surely a bd10 cant be much bigger than standard anyway?
would it still make much a difference going back to a standard?
11-06-2011, 10:48 PM
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Bd range dosnt go by bigger the number 'bigger' the cam!
11-06-2011, 10:56 PM
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Quote:
Originally Posted by
J1mbo
Bd range dosnt go by bigger the number 'bigger' the cam!
Lift goes up as the BD numbers go up but the duration doesn't:
Rich
11-06-2011, 11:02 PM
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Quote:
Originally Posted by
Sonic Boom
Lift goes up as the BD numbers go up but the duration doesn't:
Rich
I know..
I was letting dan know that you shouldnt go by the numbers they're labelled as, as it dosnt always work out in order like youd think
11-06-2011, 11:12 PM
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feck sake looks like i ve 2 cam s to buy now instead off one,
cheers jim
13-06-2011, 07:28 AM
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Quote:
Originally Posted by
boost mad
So is there an alternative over the standard ?
No because one is not needed
13-06-2011, 04:26 PM
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dont start James lol, im just asking for peoples views, opinions and experiences
13-06-2011, 05:24 PM
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Describe what you want from the car Alex
13-06-2011, 06:22 PM
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For it to work and stop fucking about would be a good start
13-06-2011, 06:54 PM
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13-06-2011, 07:23 PM
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To much valve over lap ruins low speed trackability/torque
Long duration cams on ex can be problematic.
13-06-2011, 07:33 PM
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Not knowing much on the subject of cam choices I know Aaron at HT has put them in my engine.
13-06-2011, 10:38 PM
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So some are saying standard, some saying one with less duration
14-06-2011, 06:49 AM
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Mines around 480bhp using a standard exhaust cam
14-06-2011, 07:10 AM
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Quote:
Originally Posted by
cossie4i
Mines around 480bhp using a standard exhaust cam
Yeah right
Mines 490 with a standard exhaust cam.
Steve
14-06-2011, 07:11 AM
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Quote:
Originally Posted by
boost mad
So some are saying standard, some saying one with less duration
A 15 works well on the ex
14-06-2011, 07:26 AM
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Quote:
Originally Posted by
Moonstone Steve
Yeah right
Mines 490 with a standard exhaust cam.
Steve
Well if mine ain't around 480 yours ain't around 490
Steve
14-06-2011, 08:32 AM
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Quote:
Originally Posted by
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A 15 works well on the ex
How far up would it move the power band ?
14-06-2011, 12:33 PM
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There is no way of actually telling without putting the engine on the dyno and seeing, move the timing to get the best gains etc, not just a case of put it in and expect it 500rpm later as it will depend on the engine itself
14-06-2011, 01:31 PM
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i had really good results with a BD14 ex on my T4 car, took a bit of trial and error with the timing but it did work well once it was done
14-09-2011, 11:25 PM
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Ive just found my spare standard exhaust cam and Im thinking about changing it from the BD14 Ive got in there at the moment.
Spec is..
0.5 std comp with pockets
Std rods
Std/std crank
27mm inlet ports
25mm exhaust ports
BD16 inlet cam
BD14 exhust cam
T4 turbo
What exhaust cam would work best with that spec? Its a road only car, driven like a dick 95% of the time Im in it
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