All MOTOR B20 BUILD

**CIV16A** · 23-01-2012 03:15 PM

HI Guys and Girls I'm in the middle of a B20 build and would really like to see some dyno results and some input from guys that have already done a built version with forged rods and pistons.

Just to add I am also using a sleeved B18c2 block.

**IV73CI** · 23-01-2012 04:08 PM

So your using a b18 block with a stroker kit to bump up the extra 200cc?

Example b20b8
146kw on v1 e85 tune
Built top to bottom...

**hondapop** · 23-01-2012 04:19 PM

Sounds like it's been sleeved out to a bigger bore size.

**CIV16A** · 23-01-2012 04:47 PM

hey no ill be using a b18c block and it will be bored out to 86mm and ill be using a b20 crank, what are your thoughts on this?

**CIV16A** · 23-01-2012 05:03 PM

Originally Posted by IV73CI

So your using a b18 block with a stroker kit to bump up the extra 200cc?

Example b20b8
146kw on v1 e85 tune
Built top to bottom...

ill be boring the b18c2 block out to 86mm and ill be using a b20 crank

**gen2 CRX** · 23-01-2012 05:12 PM

good choice on the b18c2 block that way you dont have to engineer the conversion, also will handle high rpm much better then a stock b20 block.

**CIV16A** · 23-01-2012 05:22 PM

Originally Posted by gen2 CRX

good choice on the b18c2 block that way you dont have to engineer the conversion, also will handle high rpm much better then a stock b20 block.

what other advantages come from using a sleeved b18c2 block that you know of?

**gen2 CRX** · 23-01-2012 05:50 PM

If your doing a naturally aspirated build there is no need to use forged pistons and rods.. Use the stock b18c crank and rods as the stoke is shorter (more reliable for the high rpm power range of vtec). The b18c also has a girdle which reinforces the main caps causing less stress on the block.

**IV73CI** · 23-01-2012 05:59 PM

Originally Posted by gen2 CRX

good choice on the b18c2 block that way you dont have to engineer the conversion, also will handle high rpm much better then a stock b20 block.

I can rev to 10,000rpm if its tuned for it, but yet again depends on what your trying to achieve - power or reliability or both..

My b20 is built frm top to bottom... Lots of torque across the entire rpm range!

**IV73CI** · 23-01-2012 06:03 PM

Originally Posted by gen2 CRX

If your doing a naturally aspirated build there is no need to use forged pistons and rods.. Use the stock b18c crank and rods as the stoke is shorter (more reliable for the high rpm power range of vtec). The b18c also has a girdle which reinforces the main caps causing less stress on the block.

If u have the budget, mite aswell change to stronger rods while its apart and get ARP bolts..

U want a strong motor that will last not a motor that will crack the block apart...

**CIV16A** · 23-01-2012 06:04 PM

Originally Posted by IV73CI

I can rev to 10,000rpm if its tuned for it, but yet again depends on what your trying to achieve - power or reliability or both..

My b20 is built frm top to bottom... Lots of torque across the entire rpm range!

I would like a balanced motor, built to withstand a few runs down the strip and Id also like to do a few track days.

**CIV16A** · 23-01-2012 06:15 PM

Originally Posted by IV73CI

If u have the budget, mite aswell change to stronger rods while its apart and get ARP bolts..

U want a strong motor that will last not a motor that will crack the block apart...

That's what I had on mind, do it once do it properly I guess, I'll be using Cp 13:1 pistons and Eagle h beam rods.