Okay ive searched and searched and searched for the answer to this question: Real Compression rate of CTR pistons in a B18C1. most of you say 12:5:1. some say 11:5:1. I have them in my GSR with JUN III, and they did make a major difference verses the stock pistons. I just want to know what the compression rate is.

 

what are ur cam gear settings? since u have higher compression pistons
the pistons will have valve reliefs and u can set them higher +1 +2 +3? ect...
did u tune them?

 

i left the JUN cams at 0,0. Its safe that way.

 

so i take it that you wont be tuning your cams because it's just safe that way?

 

wont be tuning them until i get to a dyno. Cant go much on jun 3 with CTR pistons dont want any piston to valve contact.


[Modified by Badboy01GSR, 2:31 AM 12/5/2001]

 

CR will be 12.5:1 in a B18C block with B18C head.

How do you know that 0,0 is "safe"? Have you checked to see that your cam gears
are same as stock at 0? Have you checked your cam specs to see that they are
at ACTUAL 0?

If you are going to leave your cams as installed, then dont bother doing any more
mods because its obvious that you arent interested in making power.

If you are truly worried about valve/piston contact, you should go ahead and clay
the head. That will tell you where your bounds on moving the cam are.

 

Stock head, stock block, stock gasket... 12.35:1

 

oh boy.....yeah im not interested in making power..hello. I have the stock cam gears on for now. I am not too experianced with cam tuning. The head was clayed for tolerences. I will be getting dyno time, and I will have an experianced person dyno-tuning my car. I have already contacted a tuner in my town.


[Modified by Badboy01GSR, 3:42 AM 12/5/2001]


[Modified by Badboy01GSR, 3:58 AM 12/5/2001]

 

Badboy01GSR-Where did you get your block work done? Im from nj and looking for someone to work on my block.

 

my friend is a mechanic, who knows Honda engines. He work out of neptune NJ

 

Does he do good work? I want to get eagle rods put in, and also jdm itr pistons, .25 oversized. Do ya think you can get me a qoute on the prices for the work from him. Ive been searching for a reliable place to get work done. Drop me an email. Dynoair690@aol.com Thanks Alot


[Modified by Big Teggie, 11:52 PM 12/4/2001]

 

Can't use OEM pistons on aftermarket rods(unless you have circlip reliefs machined into the pistons = not worth the money!) Godd Luck though!!

 

for the time being you should have had your builder degree the cams while the motor was being built ... oh wait these are JUN cams and JUN has no degreeing specs last time I checked


Well good luck, lemme know if you need more horsepower, I'm in central Jersey and HP is my middle name


Greg