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Some b20vtec questions

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Old Aug 11, 2006 | 11:38 AM
  #1  
1nsane's Avatar
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From: Ankara, Turkey, Turkey
Default Some b20vtec questions

First of all sorry for my english

My setup :

stock b20b jdm block ( RS 84.5 pistons and eagle rods soon )
stock b16a2 head
Skunk2 IM
DC 4-1 Headers ( I know, I know )
2.5" piping, tanabe universal muffler
Passwordjdm intake ( robbing power ? )
p28 ecu, tuning with cromepro
4.78 FD

My hot compression test numbers are : 150 150 150 155 . Are these numbers low ? My estimated static compression ratio is 9.15

I am using NGK bkr6e regular spark plugs. Gap is 0.040. Should I use a colder plug with less gap ?



Flywheel power 129kw, ~150whp at 7020 RPM ( DIN 70200 correction, not SAE )
Flywheel torque 184nm, ~115wtq at 6100 RPM

I tuned the engine myself. Made some great power with ignition timing and a/f tuning. After 3000rpm torque falls and I can't get rid of it. Any ideas? Thank you very much.
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Old Aug 13, 2006 | 01:54 PM
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1nsane's Avatar
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From: Ankara, Turkey, Turkey
Default Re: Some b20vtec questions (1nsane)

Anyone ? Thank you
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Old Aug 13, 2006 | 04:24 PM
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RudeBwaiSi's Avatar
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From: Palm Beach, FL, US
Default

B20VTECs need compression to put out some serious power so I think you need to work on that.
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Old Aug 13, 2006 | 04:25 PM
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GetawayInMoscow's Avatar
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Default Re: Some b20vtec questions (1nsane)

Hey, the reason your compression numbers are so low is because you probably didnt hold the gas down all the way (WOT) when you tested compression.

As for spark plug gap, rocket recommends .038, so thats what I use.
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