omega0684
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| posted on 25/3/09 at 11:58 AM |
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whats the difference? (part 3 i think)
whats the difference between a pinto carb head and a pinto injection head?
answers on a postcard,
Cheers
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cd.thomson
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| posted on 25/3/09 at 12:05 PM |
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size of the ports is the main difference as I saw it. Also the injection head "flows" better apparently. 
Craig
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omega0684
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| posted on 25/3/09 at 12:10 PM |
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is there a considerable difference in the port sizes? would a ported carb head be just as efficient as an injection head?
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mcerd1
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| posted on 25/3/09 at 12:14 PM |
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better port design as standard - but I think a well ported carb'd head is just as good as a well ported EFI head
some people seem to think that the power increase between the std. EFI and carb'd engines is entirely due to the head (not the EFI itself)
some later ones have hard valve seats from the factory (I think the haynes books tell you which are unleaded - there is a code stamped on
somewhere)
visualy EFI heads have 'egg shapped' inlets:
http://i5.photobucket.com/albums/y170/mcerd1/Dax/IMG_3846.jpg
[Edited on 25/3/09 by mcerd1]
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mookaloid
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| posted on 25/3/09 at 02:23 PM |
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I could be wrong but doesn't the injection heads have slightly bigger valves?
"That thing you're thinking - it wont be that."
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mcerd1
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| posted on 25/3/09 at 02:35 PM |
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quote:
Originally posted by mookaloid
I could be wrong but doesn't the injection heads have slightly bigger valves?
no all the std 2.0 ones are the same
[Edited on 25/3/09 by mcerd1]
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clairetoo
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| posted on 25/3/09 at 03:33 PM |
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As I understand it , a ported carb head is better because there is metal to be removed where the injection head is already too big .
Its cuz I is blond , innit
Claire xx
Will weld for food......
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mcerd1
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| posted on 25/3/09 at 04:28 PM |
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Alex,
have a look in my thread in 'for sale' if you want a couple of carb'd heads to practice on
-Robert
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mookaloid
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| posted on 25/3/09 at 04:41 PM |
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quote:
Originally posted by mcerd1
quote:
Originally posted by mookaloid
I could be wrong but doesn't the injection heads have slightly bigger valves?
no all the std 2.0 ones are the same
[Edited on 25/3/09 by mcerd1]
Ok
"That thing you're thinking - it wont be that."
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