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View Full Version : Compression Q (N/A engine)


transient
01-24-2002, 11:35 PM
Now don't go getting excited, all the people that have been here for a while know that i'm not going to do this anytime soon,:) but what should I be looking for as far as compression goes? I've read at least one person going to about 11.5:1. Does that sound good? Also, what kind of work should I be doing on the head/valves/rockers etc. to take advantage of the raise in compression?

And last but not least, the most obvious question... what kind of gains should I be getting from all of this work?

wherezmytofu
01-25-2002, 01:24 AM
here is my n/a 240sx project....which i probubly will never do.....all on 93 octan of course

engine:
12.5 cr Je pistons
head work(not milled)
metal head gasket
all arp bolts
total seal piston ring
bronze valve guilds

now this is the stuff u can get off crower..they make these things for any car.

s.s connection rods
s.s. valves
cams
valve springs

and al course all the fuel and ingnition goodies......also...the reason i never would mill the head when u do head work is that it's a stupid way 2 get cr.....cuz it changes the angle of the valves.....:P

White240sx
01-25-2002, 08:50 AM
</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote </td></tr><tr><td id="QUOTE">Quote: from transient on 11:35 pm on Jan. 24, 2002
but what should I be looking for as far as compression goes?</td></tr></table><span id='postcolor'>

The 244hp carbed KA24E that surfaced in the 240 community a while back runs 9.5:1 compression.

If you are serious about this build up you may want to call up Rebello or Sunbelt and talk to the guys there. They have been building Nissan racing engines for years, they would be the experts in this field.

transient
01-25-2002, 10:47 AM
Actually, i've heard of sunbelt. I've been looking for a website or a phone number for quite some time. You wouldn't have any contact information would you?

White240sx
01-25-2002, 12:50 PM
http://www.malvernracing.com/
http://www.sunbeltperformance.com/ (although it seems to be down at the moment)
http://www.rebelloracing.com/