which block would do better on the long run?
Thread Starter
Honda-Tech Member
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From: Riverside, CA
which block would do better on the long run?
b16a head port and polish
skunk 2 s2 cams
buddy club valve-train
itr manifold port matched to 68mm str tb
b18c1 block
ctr pistons
ls crank
eagle rods
acl race bearings
b20b block
84mm rs machine pistons cp 11:5:1
eagle rods
skunk 2 s2 cams
buddy club valve-train
itr manifold port matched to 68mm str tb
b18c1 block
ctr pistons
ls crank
eagle rods
acl race bearings
b20b block
84mm rs machine pistons cp 11:5:1
eagle rods
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From: Maryland
Re: which block would do better on the long run?
Well with the b18c block your compression will be at or over 13:1. Lose the ctr pistons and I'd go with the b18c. Use something a little more managable like p30's or jdm itr pistons.
The only thing I dont like about the b20 is the thinner cylinder walls, but you should be fine providing you dont beat the **** out of it on the regular.
In the long run it depends on how well either is built and how bad you abuse it. Both can be made reliable.
The only thing I dont like about the b20 is the thinner cylinder walls, but you should be fine providing you dont beat the **** out of it on the regular.
In the long run it depends on how well either is built and how bad you abuse it. Both can be made reliable.
Thread Starter
Honda-Tech Member
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Joined: Jun 2010
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From: Riverside, CA
Re: which block would do better on the long run?
Well with the b18c block your compression will be at or over 13:1. Lose the ctr pistons and I'd go with the b18c. Use something a little more managable like p30's or jdm itr pistons.
The only thing I dont like about the b20 is the thinner cylinder walls, but you should be fine providing you dont beat the **** out of it on the regular.
In the long run it depends on how well either is built and how bad you abuse it. Both can be made reliable.
The only thing I dont like about the b20 is the thinner cylinder walls, but you should be fine providing you dont beat the **** out of it on the regular.
In the long run it depends on how well either is built and how bad you abuse it. Both can be made reliable.
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Joined: Sep 2002
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From: Little Rock, AR
Re: which block would do better on the long run?
Many people run All Motor B20VTECs with no issues.
Personally, I'd take advantage of the extra displacement. Naturally Aspirated, you're not going to make enough power to worry about it.
Research the B20VTEC builds in the B20VTEC thread.
Good Luck with your build.
READ
https://honda-tech.com/forums/showth...ck+sleeve+dyno
Personally, I'd take advantage of the extra displacement. Naturally Aspirated, you're not going to make enough power to worry about it.
Research the B20VTEC builds in the B20VTEC thread.
Good Luck with your build.
READ
https://honda-tech.com/forums/showth...ck+sleeve+dyno
Honda-Tech Member
Joined: Aug 2010
Posts: 2,686
Likes: 1
From: Maryland
Re: which block would do better on the long run?
If your basing that of of c-speeds compression calculator then its an incorrect figure. C-speeds compression calculator is not correctly calibrated for ctr pistons. With an ls crank your around 13.2:1 with a b16 head.
Re: which block would do better on the long run?
either calculator is fine, but what is not accounted for is the change in CC chamber volume of the cylinder head when its milled very high. A lot of people don't put in those measurements.
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