E303 worth it when keeping stock heads???

T_5.0_N'works said:

You def. need at least 3.55 gears for that e-303 cam(N/A). Get some 1.7 RR's to bring some more life to that cam. It's not a great cam but if it's free, it will work.

I hate me e-cam and I run 3.08 gears, no low end.

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Sorry dude. 1.7 rockers with an E cam.. on a stock engine. BAD idea.

Also, as far as what you have mentioned. what did you think was going to happend when you installed a performance camshaft in a smallblock. pick up some torque?? (low end).

personally I wouldnt worry about a cam until I have at LEAST, intake, throttle body. mass air. and even then. im not sure I would do it without heads.

regardless if you take my advice or not. be sure you check your piston/valve clearance before you fire that motor!!!!!

I would NOT put that cam in your auto

....this coming fomr someone with an e cam 1.7s stock heads and every bolton.

and DONT use my car as a benchmark to what it will do.

madams74 said:

You guys act like this is some kind of technology. This is not a Pentium I 33MHZ vs. a Pentium IV 2.5 GIG race. People are still using the same style mufflers from 50 years ago today, they still use the same style carbs, they still use the same style valves, last I heard pistons were still round. The basic idea is that what you have cost more money than what we have and therefore it must be better. You think that the E-cam is outdated and your cam is the most modern cam for all mustangs. Let me ask you this. What will a future cam bring to my 306? In another decade from today are you telling us that the cam of today will be outdated? Maybe you should tell those HEMI guys from the 70's that they should use a different motor in their cars because they are 25 years old now. PLEASE!!!!! They would STOMP you and me today!

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actually, you are wrong. it IS technology. we have come along way just as we dhave with the computer. the e cam has really lazy ramp rates and needs alot more compression than our little small blocks have without a built motor.

there is zero degrees of over lap.... making it suitable for blowers but not the best all motor cam, and its a single pattern design which works real well for the plethora of aftermarket heads
most of the heads here sit somewhere in the 70s% i/e ratio, most every head here will benifit form a split duration, many times a big split. the only heads thats are getting close to being ok with a single pattern are the afr and some of the bigger heads which we dont use here

and your trying to compare big cube High compression to our tiny small block blower worthy compression motors

also people look at the advertised .050 duration and think one cam is "bigger" when you nee dto look at the degrees at a number of lifts.

the e cam has what 280/280 0 overlap and 220/220 at .050 degrees
while a modern cam might 220 at .050 and only be only 276 of overall duration.this means the cam is opening up much faster
this modern cam opens much faster has a fatter lob. It spends more tim in higher lift ranges, hence higher flow.

go to www.ls1tech.com and read the cam theory threads

I refuse to go to a Chevy site.

afraid of cars that make real power all motor?

madams74 said:

You guys act like this is some kind of technology. This is not a Pentium I 33MHZ vs. a Pentium IV 2.5 GIG race. People are still using the same style mufflers from 50 years ago today, they still use the same style carbs, they still use the same style valves, last I heard pistons were still round. The basic idea is that what you have cost more money than what we have and therefore it must be better. You think that the E-cam is outdated and your cam is the most modern cam for all mustangs. Let me ask you this. What will a future cam bring to my 306? In another decade from today are you telling us that the cam of today will be outdated? Maybe you should tell those HEMI guys from the 70's that they should use a different motor in their cars because they are 25 years old now. PLEASE!!!!! They would STOMP you and me today!

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Wow. Talk about being blown out of proportion.

I never said my camshaft was most modern, or my valves were so new or I was using some high tech piston. I simply said that the E cam garbage, plain and simple. Put one in your car, sure it sounds good. Lets not get into the flaws in automotive technology - you must have forgotten about them.

Technology advances; camshafts are technology; camshaft technology advances.

Go ahead, use an E cam. It's your car, do whatever the hell you want. Just know that every other camshaft out there (including the stock one, IMO, is better).

Joe

Snoozer's got it.

Without going to the Chevy site, I can tell you why LS1's fly: Big intake ports and reverse split pattern cams with aggressive lobes.

I'm not claiming to be some kind of guru, but I do know a little bit about camshafts...

Joe