Is it worh the time and money to swap for the 503? I have stock heads and 1.6 rr, with the CM springs. What could I expect fom the swap?
Having had both cams (actually a custom gind 224/230 cam)....I would agree with Pat. I'd hold off on the 503 cam for now and re-consider it when it's time for a rebuild....or maybe go with something bigger when you're ready to do significant modding/upgrading....Originally posted by BowtieNut1:
I don't think it's a worthwhile swap....
I didn't mean it is "too" rev happy...it just likes to rev. As for the cam not being for our cars...properly matched to the right drivetrain combo, the hot cam and stock heads with good valvesprings and 1.6 roller rockers is a very very nice cam. My car will obliterate the tires anywhere in first gear, from a 5 mph or 25 mph roll it will put them up in smoke, it will rev very strongly to well over 6000 RPM and then when I shift, my T56 will yank the motor back down to 4500 or higher RPM depending where I shifted it (if I run right up to 6500 I think I go back to 4900-5000 on most shifts)...thus my drivetrain keeps the cam right in it's sweet spot. On an exceptionally sticky day on the street I wish for a bit more low end torque from oh say idle to 1500 maybe 1800 RPM, but the car more than makes up for it 50 feet down the road when the tach has climbed above 2000-2500 RPM...it's all in the tuning...the HOT cam, 1.6 roller rockers, good valve springs, and a catback exhaust was good for 6 MPH added to my trap speeds at the track and a little over half a second off the ET...through stock manifolds and with no drivetrain changes. The drivetrain is different now, and I can't hook, so if I ever do, I'll see what that was worth for the ET.Originally posted by BishopSS95:
The hot cam is to reve happy as said before. I don’t go to the track that much and wanted a street cam with grunt. It may fall on its face at higher RPM's but I rarely get there. The hot cam is really for the Camaros and vetts not for a 4000lb+ boat we drive.
Well....since you will DIY, the 503 cam would probably be worthwhile but for most guys, that particular cam upgrade probably isn't worth the labor costs.Originally posted by Crumster:
So the extra duration and lift would do little for my combination? 224 and 230 eh.
Do a search for that cam and member #3789. Garrett (Not A Cop) is one that immediately comes to mind....and he seems to be quite happy will it as a daily driver tooOriginally posted by Crumster:
Hum, 230-236, the stock heads would support that?....