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Horse Power question yall' aaieeght!

 
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baycie bayce
petrol head


Joined: 07 Aug 2002
Posts: 1642

PostPosted: Sun Dec 29, 2002 11:54 pm    Post subject: Horse Power question yall' aaieeght! Reply with quote

Hey all, I was wondering if it is possible to predict if a 2l with a massivly ported and mildly shaved head running a 32/36 weber would have more or less horse power than the same block using a "shaved to the limit" big valve head (not ported) with high comp pistons and the same weber...

...so its really a question of kinda high compression with huge p&p -vs- higher compression with no p&p (both big valve head)

not positive on what carby to use yet as i only have a 32/36 atm
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spud
petrol head


Joined: 05 Apr 2002
Posts: 1106

PostPosted: Mon Dec 30, 2002 12:19 am    Post subject: Re: Horse Power question yall' aaieeght! Reply with quote

the higher compresion will let you run a bigger cam but not outright give you the most power. basicly the more powerful engine will be the one that can use more fuel and get rid of the waste gasses quicker. the better a head can breath the more power the engine will produce
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baycie bayce
petrol head


Joined: 07 Aug 2002
Posts: 1642

PostPosted: Mon Dec 30, 2002 12:47 am    Post subject: Re: Horse Power question yall' aaieeght! Reply with quote

Hmm... can anyone tell me how much a p&p would cost?

nothing drastic coz i dont want THIS head to crack up and fall appart like the last one. apparently it had $1600 of porting to the head and intake manifold!
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spud
petrol head


Joined: 05 Apr 2002
Posts: 1106

PostPosted: Mon Dec 30, 2002 12:56 am    Post subject: Re: Horse Power question yall' aaieeght! Reply with quote

one of the local engine builders is an absolute wizard. do you want me to ask him for you about what to do and prices?
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baycie bayce
petrol head


Joined: 07 Aug 2002
Posts: 1642

PostPosted: Mon Dec 30, 2002 12:59 am    Post subject: Re: Horse Power question yall' aaieeght! Reply with quote

yeah ok, Im getting the engine done by the gemy shop and i havnt asked darren or his mashinest yet but yeah i would like to be able to compare prices
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spud
petrol head


Joined: 05 Apr 2002
Posts: 1106

PostPosted: Mon Dec 30, 2002 1:01 am    Post subject: Re: Horse Power question yall' aaieeght! Reply with quote

ok. what work am i asking on prices for then?
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baycie bayce
petrol head


Joined: 07 Aug 2002
Posts: 1642

PostPosted: Mon Dec 30, 2002 1:23 am    Post subject: Re: Horse Power question yall' aaieeght! Reply with quote

approximatly 2mm off all ports, a bit of water gallery welding and a shave down near the limit. Has this guy worked on any gems b4?
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beasty
tinkerer


Joined: 07 Oct 2002
Posts: 88

PostPosted: Mon Dec 30, 2002 3:22 pm    Post subject: Re: Horse Power question yall' aaieeght! Reply with quote

We have a 2lt with big valve head p&p also decked and the pistons are bored to the max! compression of 11:1 with mega arse cam (sounds like a VCool with twin 45mm webbers set of extractors and a 2" exhaust made 137 kw at the wheels
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