piston matching question what CR comes out?!
04-23-2003, 07:52 AM
#1
Member
Thread Starter
Join Date: Dec 2000
Location: official euro R hospital, AUSTRIA
Posts: 4,567
Likes: 0
Received 0 Likes
on
0 Posts
piston matching question what CR comes out?!
http://www.jepistons.com/pdf/2...a.pdf
If I would put an B18C1 9.8:1 piston in an B18C5 engine I will get out an CR of 8.6:1, is that correct?!
But the quench area would get a bit more, right?
If I would put an B18C1 9.8:1 piston in an B18C5 engine I will get out an CR of 8.6:1, is that correct?!
But the quench area would get a bit more, right?
04-23-2003, 08:17 AM
#3
Member
Thread Starter
Join Date: Dec 2000
Location: official euro R hospital, AUSTRIA
Posts: 4,567
Likes: 0
Received 0 Likes
on
0 Posts
Re: piston matching question what CR comes out?! (b18bturbo)
nice programm, but when I insert all the specs for B18C5 engine at http://www.jepistons.com I get out 8.46:1 cr and not 9:1 cr?!
04-23-2003, 08:21 AM
#5
Member
Thread Starter
Join Date: Dec 2000
Location: official euro R hospital, AUSTRIA
Posts: 4,567
Likes: 0
Received 0 Likes
on
0 Posts
Re: piston matching question what CR comes out?! (b18bturbo)
yeah, I tried with stock pistons too, it is correct, but when changing to another Piston Dome Displacement (cc per piston) from the aftermarket piston homepages ...the numbes are way off from Wiseco or JE homepage. 
04-23-2003, 09:52 AM
#6
Join Date: Dec 2001
Location: Louisiana
Posts: 1,212
Likes: 0
Received 0 Likes
on
0 Posts
Re: piston matching question what CR comes out?! (austrian type-R)
Everything else being equal, a piston that yields 9.8:1 in a b18c1 will net you about 9.6:1 in a b18c5 due do the larger combustion chamber volume. They both use the same bore and stroke so that's not different.
Thread
Thread Starter
Forum
Replies
Last Post
