Modified by jonny-cakes at 11:37 AM 12/22/2005

 

bump

 

Im using a Zex/comp cam D16Z6 59300 camshaft.

*EDIT* I just saw this is for a D16A6. My bad man! I would definitely suggest looking in getting the Delta Cams.


Modified by CRX-Fluffy at 9:41 AM 5/19/2005

 

and you think it has a better low and midrange than the stock cam?

 

Not sure what engine you're running?
For the 3K-5K AUTOX range you're better off with the stock cam, at least for the D16A6 with bolt-ons if permitted in your class.

 

would like to know, bump

 

talk to will at exospeed

 

up

 

up

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Beef-Cake &raquo;</TD></TR><TR><TD CLASS="quote">d16a6 is what I got. Would porting and polishing the head, intake manifold and throttle body with the stock cam help out a lot on the midrange and low end?</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Beef-Cake &raquo;</TD></TR><TR><TD CLASS="quote">common, gotta be more autox guys out there that got cams for the d16a6. Best low and midrange cam please?</TD></TR></TABLE>

What class are you running BTW? The problem with getting useful data points is that people autocrossing D16A6 powered CRX's (88-91 Si's) are typically confined by the ruleset.

At least in the SCCA Solo2 classes; like GStock, STS2, and CStreetPrepared (all places where you must keep the D16A6 in the CRX-Si) alternate camshafts are not allowed. Not to mention p&p isn't allowed in those classes either (except for a very restricted amount in CSP).

If you're in a class that permits it, you might be better off using a wide 13" wheel/tire setup. This will effectively give you shorter gearing/quicker acceleration. It also can give you a convenient race-day ride height reduction (most 13" R-compounds are 20.x-21.x" O.D.).

Just not sure you'd want to flatten your high-end power with a cam like that. I guess it depends on the sites and course designs you see...

 

delta 272

 

IMHO cams for autocross are one of the last things you should be concerned with modifying.

Extra power will only really help you on the small straight parts of the autocross course. Suspension, tires, and seat time will help you go faster on the turning parts of the course where everyone is going slower. Exploit the built in advantages the crx already has, and make it handle better than any car out there.

What is your current suspension setup?

 

i would go with 13's and r's before doing a cam( how would dot street aproved tires change your class? they are r compunds but dot if you really wanted you could drive there with them why cant they be used for stock class-and why would internal engine mods keep you in stock class very confusing rules), but you would probably want higher compression with a hotter cam a thinner head gasket should help a little to raise comp, dont go with something too agressive you will lose bottom end which is something you need with a stock motor in auto-x