pistons?

[DizzyRoc88]

i have a b18a1 im going to be swapping into my hatch along with some other goodies. im trying to raise the compression of the block but im not trying to do much to it so i want to keep as much OEM as possible becasuse the motor is going to be going into my girls car when my h is ready. ne ways i was looking to into going with pr3. or .25 oversized itr or ctr pistons. can someone who has experience with this lend me some tips or suggestions. and what kind of compression would i be looking at?

thanks in advance

i did search this but nothing really answered my questions directly so sorry if this has been done before

 

[io_303]

i dont know with the b18 head, but the pr3 head and pistons on a b18 have a CR of about 11.2. hope that helps a bit

 

[io_303]

well i was bored, and curious, so I wend and did some math

B18a/b head and block, OE headgasket, pr3 pistons, Piston-to-Deck Height b18a/b
CR 10.817905402791732:1
Displacement 1834.6779456929157 cc

 

[DizzyRoc88]

thanks i was looking for something more like that..

 

[DizzyRoc88]

should i go with those or the ctr's or itr's would there be that much of a difference?

 

[io_303]

CTR
CR: 11.401293494506454:1
Dis: 1834.6779456929157
ITR
CR: 10.807407727080798:1
Dis: 1834.6779456929157

 

[Sheepo]

err i'm sorry to ask this noob question but.. whats OEM ??? is it some kidan branding or is it like honda factory stuff in there??? i did a search so i guess its some branding ?? but i could be wrong

 

[codyj86]

Original Equipment Manufaturer. basicly anything stock/not aftermarket.

 

[KennyC]

haha i thought this thread was about the NBA team.

 

[Sheepo]

thanks for the reply!!

 

[Declectic]

well i was bored, and curious, so I wend and did some math

B18a/b head and block, OE headgasket, pr3 pistons, Piston-to-Deck Height b18a/b
CR 10.817905402791732:1
Displacement 1834.6779456929157 cc

lol, you could just give him a link

Calculate your compression, CLICK HERE

CTR pistons aren't a bad way to go if you arent lookin for some serious all motor work, reallistically though it's a waste of time even puttin any pistons into the b18a/b motor... i'd just leave it be and pick up a turbo kit for it

 

[io_303]

that link just took me to honda-tuned. And it was a thread of a gen conversation no calculations. Here is the one i used

http://www.c-speedracing.com/howto/compcalc/compcalc.php

 

[Handlebars]

the only pistons that will fit on ls rods (without machining) are b16 pistons. itr/gsr/ctr etc all require that both the rod and piston be machined to mate up.

 

[Declectic]

that link just took me to honda-tuned. And it was a thread of a gen conversation no calculations. Here is the one i used

http://www.c-speedracing.com/howto/compcalc/compcalc.php

my bad, that's what i meant to link him too

 

[nd4sped]

C Speed Racings C/R Calculator

There is a good C/R calculator there.

 

[io_303]

C Speed Racings C/R Calculator

There is a good C/R calculator there.

ummm thats wht i had

the only pistons that will fit on ls rods (without machining) are b16 pistons. itr/gsr/ctr etc all require that both the rod and piston be machined to mate up.

Did not know that, thanks for the info