closed deck engines, semi closed deck etc etc...
30 April 2010, 07:04 AM
#5
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Dont become obsessed with the different types of blocks, there is no need to be, most will quite happily run 500bhp, most people will never run 500bhp.
Closed decks were used on the early classics, most have holes in them now
as its not the block you need to worry about, then the 2.2 cdb for the 22B, all the rest of the classics were open deck blocks.
New age STI's have semi closed deck blocks, new age WRX's have open deck.
Most common? probably open deck.
Tony
Closed decks were used on the early classics, most have holes in them now
as its not the block you need to worry about, then the 2.2 cdb for the 22B, all the rest of the classics were open deck blocks.New age STI's have semi closed deck blocks, new age WRX's have open deck.
Most common? probably open deck.
Tony
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30 April 2010, 07:36 AM
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It's about the amount of material around the top face of the bore, and hence the stiffness of the block. Tony is quite right. We have never seen an Impreza that suffered a block failure apart from those with rods who decided to pop out for a look around!
30 April 2010, 04:55 PM
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My apologies, my mechanic (who is quite well informed usually) reckons it semi closed, and since he's seen the inside whereas I have not, I didn't see any reason to disbelieve him.
30 April 2010, 05:09 PM
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Cheers,
Dan
30 April 2010, 05:10 PM
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Nope what Tony say's is right, V1-2 were closed deck, V3 to the start of the newages were open, however whats not to say the SCDB has not been fitted at a later point?
30 April 2010, 05:14 PM
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Dan, didnt make any difference on the classic v3/4/5/6 cars, they all shared the same engines (version for version, ie the sti ra had the same as the sti and sti type R)
As Dunk said, unless its been fitted later, it will be an open deck block.
Tony
As Dunk said, unless its been fitted later, it will be an open deck block.
Tony
Last edited by TonyBurns; 30 April 2010 at 05:15 PM.
30 April 2010, 07:05 PM
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02 May 2010, 02:11 PM
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i just bought a sti v2 with (so im told as ive not seen it yet) a snapped off cam shaft pully, the garage that the guy has taken it to has said that the engine is toast and all the valves would be bent etc.
is this true? he said the car just died on him at 30mph and now it wont turn over.
im guessing as its a v2 that it will have a closed deck so what your saying is as long as theres no con rod out the side of it that its worth rebuilding ???
or cheaper/easyer to replace with another engine.???
is this true? he said the car just died on him at 30mph and now it wont turn over.
im guessing as its a v2 that it will have a closed deck so what your saying is as long as theres no con rod out the side of it that its worth rebuilding ???
or cheaper/easyer to replace with another engine.???
02 May 2010, 02:54 PM
#24
Here are some photos that I took while running around API...
Open Deck (this is actually my old STi 5 block which I'm thinking of making into a coffee table and the crank into a table lamp!!)
Semi Closed
Closed
Open Deck (this is actually my old STi 5 block which I'm thinking of making into a coffee table and the crank into a table lamp!!)
Semi Closed
Closed
