Open vs. closed deck
08-12-2007, 05:17 AM
#1
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Thread Starter
Open vs. closed deck
Wondering what the advantages and disadvantages to running a closed deck (versus our open deck design) are. Should I consider closing the deck off (obviously allowing for coolant flow) when I go to sleeve the block?
08-12-2007, 03:12 PM
#2
Registered User
it's all depends on the design.
for most of the honda block, unless you are running extremely high boost, a close deck is not needed.
as you already notice, a open deck design allow the coolant flow thru which is better(for most of the boost situation).
for most of the honda block, unless you are running extremely high boost, a close deck is not needed.
as you already notice, a open deck design allow the coolant flow thru which is better(for most of the boost situation).
08-13-2007, 06:39 AM
#5
Registered User
How much boost will you be running to need a closed deck? The only S2000 motors I know of with a closed deck are running GT42R's on insane amounts of boost and 800+ horsepower.
08-13-2007, 07:16 AM
#6
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Thread Starter
I don't know yet, but I didn't know enough about the advan/disadvan of having a closed deck to make an informed decision on whether I should close it. I suspected it was to prevent excessive cylinder walk, particularly under high boost (large forces), and this somewhat confirms my suspicion.
I believe I would be quite happy with 400 whp, so this doesn't look like a necessity for me. It's a very inexpensive upgrade to make if the block is already in the open (<$100), therefore if it offered an extra degree of reliability for a few Andrew Jacksons I would go ahead and do it.
Thanks, guys!
I believe I would be quite happy with 400 whp, so this doesn't look like a necessity for me. It's a very inexpensive upgrade to make if the block is already in the open (<$100), therefore if it offered an extra degree of reliability for a few Andrew Jacksons I would go ahead and do it.
Thanks, guys!
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08-14-2007, 09:47 AM
#8
Think 800 horsepower or more needed to justify a closed deck block.
Tim
Tim
08-14-2007, 10:49 AM
#10
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id say ( and ive spoken to several of my buddies) the open deck F motor can handle up to 400 hp safely. anything more - def. get it sleeved/close it up.
i know there were threads about just using a block guard - that may be a safe/cost effective way as well. ( not bulletproof - but safe )
i know there were threads about just using a block guard - that may be a safe/cost effective way as well. ( not bulletproof - but safe )