LET ME KNOW WHICH OF THIS ARE THE BEST CAMS FOR MY CRX...LS/VTEC PROJECT (ALL MOTOR). TYPE R CAMS OR ZEX QUICKTYME STAGE3 CAMS????

 

compression, bore , pistons, headwork, header , exhaust , intake manifold, throttle body, any milling or decking? then i think we can help you a little bit... oh ya what valve train too?

 

B18A: I HAVE PR3 PISTONS, HEADER, EXHAUST, B16A HEAD STOCK, 7.5LB FLYWHEEL, YS1 TRANNY

 

zex 3

 

rods, engine managment and valvetrain?

 

i never knew that zex made cams for b series i thought only single cams ...whats the 3 for ...they comes in different stages ? and like said before what valvetrain are you running ?

 

I hope there cams are better than there nitrous

 

if i were you i would go with the zex stage 2 cams , i have built 4 b16's now with zex cams and zex spring and retainers and all of them were all motor and put 200 whp to the ground and they were only running 10:5-1 compression, i am actually putting a motor together for my car using the zex stage 2 cams , in my opinion zex makes the best bang for your buck when it comes to camshafts...

 

zex/comp definately. R cams are OEM. they are a *little* better than stock.

 

Are you sure you can use Zex valve springs with stage 2 cams ? because, with single springs at exhaust and 11.5mm of lift, i broken the engine at 8600rpm !
I advice to not use zex valve springs.
But these cams are very powerull !

 

i'm running the whole zex cam and springs and retainers in my z6 and have had no problem yet

 

Hum.. yes but z6 don't take 8800rpm and don't have 12.4mm of lift intake and 11.4mm exhaust...
I think there is a real problem with springs for DOHC Vtec

 

true... comp cams only makes single springs, not duals like the b-series seems to need to handle their revs... but for a SOHC, their single springs seem to work out just fine.

 

ah ! so what valves train can we use safely with these cams ?
I think to use RM springs and retainers...