I just picked up a new crx and the guy bumped up the timing to 18 which was just confirmed by checking the timing myself.

Is it safe to use 87 octane? I've been using 89 without a problem.

 

yeah, your compression isnt high enough to do anything bad. 89-93 oct will just slow you down more

 

i also have a cam for that motor, check my sig, its in classifeds

 

I run 89 octane on 16 deg without ever having it ping

 

Yeah, this is on a I/H/E and stock internal car.

You think 87 will not ping?

 

Dennis if it pings bump it up to 91 otherwise it dont matter.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MugenEg6 &raquo;</TD></TR><TR><TD CLASS="quote">Dennis if it pings bump it up to 91 otherwise it dont matter. </TD></TR></TABLE>

What he said ^^^^

 

.<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 1point5CRX &raquo;</TD></TR><TR><TD CLASS="quote">i also have a cam for that motor, check my sig, its in classifeds </TD></TR></TABLE>

A cam with more overlap than stock actually reduces the actual compression ration by bleeding off compression, thats why radical cams need higher compression pistoms to work well

 

yeah thats true, i was going to put in d16a1 pistons but forget it lol, im not gonna spend the time and money on it, im ready to swap motors.

 

I have my ZC set to 18* and I fill up on 87 and it is fine.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FourthGenHatch &raquo;</TD></TR><TR><TD CLASS="quote">I have my ZC set to 18* and I fill up on 87 and it is fine.</TD></TR></TABLE>

ditto

 

thanks for the help, I'll try 87 and see what happens.