B20 rods


ALEX-CY

ALEX-CY

Active Member
Joined
Mar 17, 2009
Messages
790
I will strock my b16b soon, is the b20 oem rods good for 200whp?
I will use b20 oem crankshaft, b20 oem rods and b16b oem pistons.
Thanks
 
i have this setup before except piston 83mm.
acl race bearing.
as long i use great but now change new set-up.
 
madcivic said:
i have this setup before except piston 83mm.
acl race bearing.
as long i use great but now change new set-up.
Click to expand...

Do you had any reliability issues? :nono:

I ask this because the B20 rods and crankshaft where not designed to rev up to 8000 RPM +, and also the compression of that setup should be around 12.5 + !!!
 
Last edited:
B20 rods/crank are plenty strong enough and will happil take 8500rpm on a daily basis,

We have a 5 year old 30k+ B20 build using stock block/rods/crank etc with a well specced head running 158ft/lbs and 225bhp and it gets driven very hard, track days + drag and is driven daily.

Daz
 
Daz81 said:
B20 rods/crank are plenty strong enough and will happil take 8500rpm on a daily basis,

We have a 5 year old 30k+ B20 build using stock block/rods/crank etc with a well specced head running 158ft/lbs and 225bhp and it gets driven very hard, track days + drag and is driven daily.

Daz
Click to expand...

with b16b pistons? :nono:
 
Why would you stroke it using B20 stuff if your only staying 81mm anyway? might as well just use B18c crank and rods...least then you know for sure they will handle the high RPM as thats what they are designed for
 
rvm said:
with b16b pistons? :nono:
Click to expand...

No but revs are revs regardless of compression.

My 2p how ever.

If your going to the hassle of swapping pistons/rods etc, why not buy some decent strong rods.

You have to press the pin out and then press a new one in which when you consider the amount of pressure needed to press out/in the pins exerting that force on a cast piston i feel may weaken it, get a decent rod with wrist pin clips so much easier, and rods can be had for peanuts nowadays.

Or as Danny said why not just fit ITR setup lots easier.

Daz
 
Do you had any reliability issues?

I ask this because the B20 rods and crankshaft where not designed to rev up to 8000 RPM +, and also the compression of that setup should be around 12.5 + !!!

crank and rod lighten n balancing.
i use this about 2years not reliability issues.
daily and sometime drag pushing 9.5k rpm
change setup for upgrading
 
thanks all of you.
i allready have the rods and crank in perfect condition so iam going to use them.
the car will be my daily drive(no race no track) so i think i will not have any proplem, but what is the proplem if i have 12,5+ cr?
i will use 98 oct fuel , power fc, porting and polich the head ,1mm head gasket,oem bearings,and maybe biger injectors
any opinion is welcome
 
no, you will not have any problem. any way, b20 rods is good till 300hp, in lithuania are many cars with b20/b16 hybrids and they have 250-300hp, they are happy for it.
 
engine spec:
1.block b16b - rebore
2.crank b20b -ligten and balance
3.rod b20b - ligten and balance
4.Acl race bearing
5.piston JE - 83mm
6.head b16b - no pnp
7.cam b16b
8.computer box rechip + e-manage.
9.intake manifold b16b
10.extractor mugen 4-1
11.piping 2.3"
 
ALEX-CY said:
thanks all of you.
i allready have the rods and crank in perfect condition so iam going to use them.
the car will be my daily drive(no race no track) so i think i will not have any proplem, but what is the proplem if i have 12,5+ cr?
i will use 98 oct fuel , power fc, porting and polich the head ,1mm head gasket,oem bearings,and maybe biger injectors
any opinion is welcome
Click to expand...
1mm? How safe will your valve clearance will be with OEM b16b pistons?
 
on the official title, B20 rods.. Carillo rods are very good - however more expensive... on my Ek build I'm using a standard b18 crank with carillo rods, using darton sleeves so I can safely put 84mm 13-14 c/r pistons in.
 
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