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> Compression, Not your average Engine
Mblizzard
post Oct 16 2018, 06:44 AM
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Ok so as many know, I an building my dream engine. With lots of Type 4 Store goodies including Nickies, 78 mm crank, and 102mm P/Cs, LE-200 heads and a decent cam, I am looking at where I want my compression to be.

With a normal engine and quality components it seems that 8.5 to 9.5 is about the limit before heat and detonation become issues.

Don't have any measurements yet but playing around with some calculations and assuming a low deck height because I have a slight dish and or valve pockets in the pistons I could easily get to over 11 to 1.

But I am think that might not be a long lasting engine. Looking at going for 10 to 10.5.

Thoughts? (IMG:style_emoticons/default/blowup.gif)
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Mblizzard   Compression   Oct 16 2018, 06:44 AM
Montreal914   So, after spending all that money at the type 4 st...   Oct 16 2018, 07:17 AM
Mblizzard   So, after spending all that money at the type 4 s...   Oct 16 2018, 07:54 AM
Mark Henry   So, after spending all that money at the type 4 ...   Oct 16 2018, 08:56 AM
Mblizzard   [quote name='Mblizzard' post='2657838' date='Oct ...   Oct 16 2018, 09:27 AM
Mark Henry   [quote name='Mblizzard' post='2657838' date='Oct...   Oct 17 2018, 09:57 PM
Mblizzard   [quote name='Mblizzard' post='2657867' date='Oct ...   Oct 18 2018, 05:44 AM
Mark Henry   I have the same engine in my '67 bug, anything...   Oct 16 2018, 07:32 AM
Mblizzard   I have the same engine in my '67 bug, anythin...   Oct 16 2018, 07:54 AM
Mark Henry   I have the same engine in my '67 bug, anythi...   Oct 16 2018, 08:20 AM
Chi-town   At that compression just run E85   Oct 16 2018, 08:02 AM
VaccaRabite   Its somewhat apples and oranges since my engine is...   Oct 16 2018, 08:05 AM
Mblizzard   Its somewhat apples and oranges since my engine i...   Oct 16 2018, 08:54 AM
VaccaRabite   Its somewhat apples and oranges since my engine ...   Oct 16 2018, 11:04 AM
mepstein   I would still ask them their thoughts for the high...   Oct 16 2018, 08:09 AM
falcor75   My engine is 10.3:1 2256 CC and it runs fine. But ...   Oct 16 2018, 11:46 AM
Dave_Darling   Remember that the cam makes a difference to how mu...   Oct 16 2018, 03:20 PM
PlaysWithCars   Remember that the cam makes a difference to how m...   Oct 17 2018, 08:40 PM


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