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B20v_ek plans a B20VTEC build. Details inside

 
Old 04-10-2019, 09:09 PM
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Default B20v_ek plans a B20VTEC build. Details inside

I am currently building a B20v for my ek here’s my plans

gsr head
skunk 2 valve spring and retainers
skunk 2 pro 3 cams
skunk 2 ultra high comp valves
skunk 2 ultra intake manifold
stock port

b20b block
css bored to 85
wiseco 12.5:1 pistons
eagle rods
golden eagle conversion kit
on 93 pump gas
plan on it being a summer daily let me know what y’all think
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Old 04-11-2019, 02:20 PM
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Default re: B20v_ek plans a B20VTEC build. Details inside

Originally Posted by B20v_ek View Post
I am currently building a B20v for my ek here’s my plans

gsr head
skunk 2 valve spring and retainers
skunk 2 pro 3 cams
skunk 2 ultra high comp valves
skunk 2 ultra intake manifold
stock port

b20b block
css bored to 85
wiseco 12.5:1 pistons
eagle rods
golden eagle conversion kit
on 93 pump gas
plan on it being a summer daily let me know what y’all think
Sounds good! you can port the ultra manifold your self its not very hard they use a 2 ltr bottle with sand paper to port/polish it. Just kind of clean it up!
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Old 04-11-2019, 02:35 PM
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Default re: B20v_ek plans a B20VTEC build. Details inside

Flat valves with 12.5:1 static CR pistons will yield around 12.7:1 compression. I'd recommend Pro 2 cams over Pro 3 for anything under 13:1 (and I wouldn't recommend anything over the 12.5 region for pump gas, you'd need to retard timing too much any any gains would be lost in the mapping).

Don't bore the B20 out to 85mm. The cylinder walls will be paper thin at that point, and you will have NO room for error. The cylinder wall between #2 and #3 is known to be problematic anyway on the B20, don't push your luck like that - an 85mm bore as opposed to an 84 -> 84.5mm bore also yields hardly any difference in overall displacement, it very simply isn't worth it. Bare in mind as well that the CSS process can't do anything about that 2/3 weak spot in the B20 either, Jeff used to mention this specifically on his website.

http://performancetrends.com/Calcula...splacement.php

Everything else looks good. TL;DR - Use Pro2 cams and stay with an 84 -> 84.5mm bore.
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Old 04-11-2019, 08:48 PM
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Default re: B20v_ek plans a B20VTEC build. Details inside

I recommend Ferrea Competition Plus (or similar, high quality aftermarket valves) or just new OE valves instead of those cheap flat faces. "High-comp" is just marketing, more important is durability and weight because those are moving components. Any reduction in active valvetrain mass means less stress and need of valvespring tension. Stability in higher velocities.
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Old 04-15-2019, 06:49 AM
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Default Re: B20v_ek plans a B20VTEC build. Details inside

I would go 84.5, 11-8-1 comp pistons, pro2 cams for 93 octane
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Old 04-15-2019, 08:35 PM
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Default Re: B20v_ek plans a B20VTEC build. Details inside

first off you would need to talk to your tuner about your build and see what he recommends as far as compression range. higher is not always better as depending on your quality of fuel and temperature ranges in region you are in. higher temps, higher comp = pinging. mid to high 11 ratio is fine for daily and safe for a daily without much worry. I would go with this guy ^^^ for this build as it should be a "simple build" but we all know its never simple
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