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Old 12-07-2010, 09:17 PM
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hicost
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Default YB 2wd Cams

General advice if possible.

What cams do people recommend to run 450/500 bhp.

Rest of the engine and head would be sorted, ported head, double springs, inlet, turbo etc.

I am not looking for cams that "trip over" themselves either, no point in blowing the boost out the exhaust before it’s done the job.

Thanks


James
Old 12-07-2010, 09:25 PM
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cossie4i+
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I have just had a AB07 (inlet) cam fitted to mine and gained 35bhp with the same boost. Was 399.8bhp now 434.5bhp.

Drives just as nice as the standard cam and ticks over perfect.

Was Rolling Roaded on the same rollers before and after. Dyno Dynamics Rollers.

Steve

Last edited by cossie4i+; 12-07-2010 at 09:26 PM.
Old 12-07-2010, 10:08 PM
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do you have pocketed pistons?
Old 12-07-2010, 10:29 PM
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Danny @ Enhanced Performance
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Depends on cr size of ports and turbo your running???
These days i like very close to std cr valve cut outs 25mm ports std ex cam 10 mm lift 280 duration inlet cam siemens injectors and a gt3071 turbo..
awesome set up for fast road and track car and will achieve your goals..

cheers danny
Old 12-07-2010, 10:32 PM
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james kiely
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danny would billet cams for a t4 work with a gt30 mate?
Old 12-07-2010, 10:37 PM
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Danny @ Enhanced Performance
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Originally Posted by james kiely
danny would billet cams for a t4 work with a gt30 mate?
What do you mean by billet cams mate???



cheers danny
Old 12-07-2010, 10:42 PM
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james kiely
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sorry danny cams are by norris motorport and were not reprofiled but made new especially for a t4 on a ported head [i think]
Old 12-07-2010, 10:58 PM
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Danny @ Enhanced Performance
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Originally Posted by james kiely
sorry danny cams are by norris motorport and were not reprofiled but made new especially for a t4 on a ported head [i think]
All depends then really mate,but seeing as they were specially designed for a specefic spec i wouldnt like to say...
Its all about the lift and duration on the inlet and no need for a bigger exhaust untill after 500 hp...


cheers danny
Old 12-07-2010, 11:07 PM
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james kiely
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cheers danny, i must check what lift and duration they have,should be able to tell more then ,thing is i really want to go gt30 instead of a t4
Old 12-07-2010, 11:17 PM
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Danny @ Enhanced Performance
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Originally Posted by james kiely
cheers danny, i must check what lift and duration they have,should be able to tell more then ,thing is i really want to go gt30 instead of a t4
Im sure the gt30 would work fine whatever the cams and could be timed slightly different to work better...
At worst take the ex cam out and put a std one back,dti inlet cam then play with verniers untill your happy...

What cr you running???


cheers danny
Old 13-07-2010, 10:18 AM
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CossieRich
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BD14 inlet and standard exhaust cam is good. Danny's figures above may be describing the BD14? not sure
Old 13-07-2010, 10:08 PM
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Danny @ Enhanced Performance
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Originally Posted by CossieRich
BD14 inlet and standard exhaust cam is good. Danny's figures above may be describing the BD14? not sure
Its a tad different than a 14 mate and works really well,its a cam iv used loads...


cheers danny
Old 13-07-2010, 11:44 PM
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danny my compression is 7.5.1[not that i understand what it means lol]
Old 14-07-2010, 06:45 PM
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Originally Posted by james kiely
danny my compression is 7.5.1[not that i understand what it means lol]
that will be fine although id prefer slightly higher cr..
All it means is the lower the cr the longer you wait for positive boost but a good mapper can get around that to a certain degree...


cheers danny
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