Team Integra Forums banner
1 - 14 of 14 Posts

·
Registered
Joined
·
2,975 Posts
nate2k5 on Sep/28/07 said:
obviously the b20 as it has more displacement, the other factors are the same
exactly thats like asking what taste better a cup of OJ or bottle of OJ?
 

·
Registered
Joined
·
35,673 Posts
A quick bit of info on the P8R I got by searching on TI....



This is a super rare head casting of a B20 head. Want to make good nonvtec power? Ports are different than regular LS heads, chambers are already opened up to 84mm, and intake valves are 33mm (vtec size). This head out of the box will flow as well as most ported LS heads, and you port this thing and get custom valves like another h-t member (fastone beast LS motor) you can easily be destroying vtec setups because of its 33mm intake valves seats.
 

·
Registered
Joined
·
432 Posts
Danny50 on Sep/29/07 said:
Quote: IntegraSC on Sep/29/07well would it still be the same if boosted?

absolutely not. B20 sleeves are notoriously thin and prone to cracking. Try searching a bit
Due to detonation, get it tuned and it would be alright to 14 psi. I've been there, street tuned on neptune and it lasted awhile, something stupid happened, I let a friend "play" with neptune and it cost me a sleeve.




done that.
 

·
Registered
Joined
·
102 Posts
kc-db1 on Sep/30/07 said:
Quote: skaterp14 on Sep/30/07p8r head wont work on a b18

It wont? Why's that?
b18 has 81mm chambers b20 has 84mm chambers. the p8r head has 84 mm chambers to match the b20. u cant put 84mm chamber head on a 81mm block, BUT u can put a 81mm chamber head on a 84mm chamber block. the stock us b20s have a p75 head on them wich is the same head as the b18b ls
 

·
Registered
Joined
·
432 Posts
skaterp14 on Sep/30/07 said:
Quote: kc-db1 on Sep/30/07Quote: skaterp14 on Sep/30/07p8r head wont work on a b18
It wont? Why's that?


b18 has 81mm chambers b20 has 84mm chambers. the p8r head has 84 mm chambers to match the b20. u cant put 84mm chamber head on a 81mm block, BUT u can put a 81mm chamber head on a 84mm chamber block. the stock us b20s have a p75 head on them wich is the same head as the b18b ls


It'll work. You'll end up having overhang... the cylinder bore in the head will over lap the cylinders. it may not be ideal, but it'll work.
 
1 - 14 of 14 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top