alright all these dang numbers with the cams, its putting my brain into a death spin. I have no idea what im lookin at when it comes to cam specs.

So how would this do over stock?

<TABLE cellSpacing=0 cellPadding=0 width="100%" border=0><TBODY><TR onmouseover="this.style.backgroundColor='#f5f5f5'; " style="BACKGROUND-COLOR: #ffffff" onmouseout="this.style.backgroundColor='#FFFFFF'"> <TD class=overview-c1 width="25%">Cam Style:</TD><TD class=overview-c2 width="75%">Hydraulic flat tappet</TD></TR><TR onmouseover="this.style.backgroundColor='#f5f5f5'; " style="BACKGROUND-COLOR: #ffffff" onmouseout="this.style.backgroundColor='#FFFFFF'"> <TD class=overview-c1 width="25%">Basic Operating RPM Range:</TD><TD class=overview-c2 width="75%">1,200-5,200</TD></TR><TR onmouseover="this.style.backgroundColor='#f5f5f5'; " style="BACKGROUND-COLOR: #ffffff" onmouseout="this.style.backgroundColor='#FFFFFF'"> <TD class=overview-c1 width="25%">Intake Duration at 050 inch Lift:</TD><TD class=overview-c2 width="75%">210</TD></TR><TR onmouseover="this.style.backgroundColor='#f5f5f5'; " style="BACKGROUND-COLOR: #ffffff" onmouseout="this.style.backgroundColor='#FFFFFF'"> <TD class=overview-c1 width="25%">Exhaust Duration at 050 inch Lift:</TD><TD class=overview-c2 width="75%">218</TD></TR><TR onmouseover="this.style.backgroundColor='#f5f5f5'; " style="BACKGROUND-COLOR: #ffffff" onmouseout="this.style.backgroundColor='#FFFFFF'"> <TD class=overview-c1 width="25%">Duration at 050 inch Lift:</TD><TD class=overview-c2 width="75%">210 int./218 exh.</TD></TR><TR onmouseover="this.style.backgroundColor='#f5f5f5'; " style="BACKGROUND-COLOR: #ffffff" onmouseout="this.style.backgroundColor='#FFFFFF'"> <TD class=overview-c1 width="25%">Advertised Intake Duration:</TD><TD class=overview-c2 width="75%">254</TD></TR><TR onmouseover="this.style.backgroundColor='#f5f5f5'; " style="BACKGROUND-COLOR: #ffffff" onmouseout="this.style.backgroundColor='#FFFFFF'"> <TD class=overview-c1 width="25%">Advertised Exhaust Duration:</TD><TD class=overview-c2 width="75%">262</TD></TR><TR onmouseover="this.style.backgroundColor='#f5f5f5'; " style="BACKGROUND-COLOR: #ffffff" onmouseout="this.style.backgroundColor='#FFFFFF'"> <TD class=overview-c1 width="25%">Advertised Duration:</TD><TD class=overview-c2 width="75%">254 int./262 exh.</TD></TR><TR onmouseover="this.style.backgroundColor='#f5f5f5'; " style="BACKGROUND-COLOR: #ffffff" onmouseout="this.style.backgroundColor='#FFFFFF'"> <TD class=overview-c1 width="25%">Intake Valve Lift with Factory Rocker Arm Ratio:</TD><TD class=overview-c2 width="75%">0.477 in.</TD></TR><TR onmouseover="this.style.backgroundColor='#f5f5f5'; " style="BACKGROUND-COLOR: #ffffff" onmouseout="this.style.backgroundColor='#FFFFFF'"> <TD class=overview-c1 width="25%">Exhaust Valve Lift with Factory Rocker Arm Ratio:</TD><TD class=overview-c2 width="75%">0.493 in.</TD></TR><TR onmouseover="this.style.backgroundColor='#f5f5f5'; " style="BACKGROUND-COLOR: #ffffff" onmouseout="this.style.backgroundColor='#FFFFFF'"> <TD class=overview-c1 width="25%">Valve Lift with Factory Rocker Arm Ratio:</TD><TD class=overview-c2 width="75%">0.477 int./0.493 exh. lift</TD></TR><TR onmouseover="this.style.backgroundColor='#f5f5f5'; " style="BACKGROUND-COLOR: #ffffff" onmouseout="this.style.backgroundColor='#FFFFFF'"> <TD class=overview-c1 width="25%">Lobe Separation (degrees):</TD><TD class=overview-c2 width="75%">111</TD></TR><TR onmouseover="this.style.backgroundColor='#f5f5f5'; " style="BACKGROUND-COLOR: #ffffff" onmouseout="this.style.backgroundColor='#FFFFFF'"> <TD class=overview-c1 width="25%">Intake Valve Lash:</TD><TD class=overview-c2 width="75%">0.000 in.</TD></TR><TR onmouseover="this.style.backgroundColor='#f5f5f5'; " style="BACKGROUND-COLOR: #ffffff" onmouseout="this.style.backgroundColor='#FFFFFF'"> <TD class=overview-c1 width="25%">Exhaust Valve Lash:</TD><TD class=overview-c2 width="75%">0.000 in.</TD></TR><TR onmouseover="this.style.backgroundColor='#f5f5f5'; " style="BACKGROUND-COLOR: #ffffff" onmouseout="this.style.backgroundColor='#FFFFFF'"> <TD class=overview-c1 width="25%">Grind Number:</TD><TD class=overview-c2 width="75%">FW X4 254H-11</TD></TR><TR onmouseover="this.style.backgroundColor='#f5f5f5'; " style="BACKGROUND-COLOR: #ffffff" onmouseout="this.style.backgroundColor='#FFFFFF'"> <TD class=overview-c1 width="25%">Computer Controlled Compatible:</TD><TD class=overview-c2 width="75%">No

</TD></TR></TBODY></TABLE>



and does anybody care to explain to me what it is im looking at here?

 

It's a short duration high lift cam.. commonly referred to as an RV cam because it should build good low rpm TQ. The lobe seperation(LSA) is too tight for an SD efi system, and it's a flat tappet cam so it won't directly replace a roller cam.

 

so what would be a good cam for my aplication?
Just looking to increase hp and tq, nothing crazy, ust need a little more power.
Its going in a 95 ford, with a 351w its Fuel injection too. Any suggestions for my kind of aplication?

 

Simply adding 1.7 rockers to the stock cam will nearly match those specs. And if you haven't already, replace the whole exhaust system with longtubes and a decent single.

 

so 1.7 rockers with the stock cam would be better than going with the cam specs listed as above? What would a combo of the above listed cam and 1.7 rockers be? I have already done the exhaust, and the intake, and am now looking to make some more power. I thought a cam would be a good place to start. Any other suggestions?

 

what do you mean by intake? did you replace the actual efi intake with an aftermarket unit or install some intake tube deal? what exhaust mods have you done exactly.

 

The Comp 35-349-8 with 1.6 rockers is about all the stock heads can use.

 

the intake is just a K&N intake replaces stock airbox and hoses.
Ive got shorty headers and 2.5" true dual exhaust. Straight pipe.
I will soon redo the whole exhaust system with longtubes, again with true duals but im going to have to use cats, probably some high flows, and exit them out before the rear tires. Thats all thats done as of right now.

 

alright that cam, with 1.6 rockers, its suggesting replacing the valve springs also.

 

i know the stock heads had holes in the back for the thermactor? if im correct. I know heads are expensive, what about having the heads redone and the holes ground out and filled. Would that be worth doing, or just go and get some new heads?

 

I'd suggest taking it 1 step at a time, install a cam and see how you like that first. If you still want more then look at heads, the stock E7TEs can be reworked for significant gains, but you could probably find GT40's for less and get the same power gains.
FYI.. The air injection hole at the back of the heads are threaded so plugging them is simple. There is no performance gain from eliminating the air injection system however.

 

yes i know that, ive already done that, is there a performance loss by doing so though. Yea i do want to take it one step at a time. But I would like to get all of my ducks in a row, before i deside to take that first step, If i know that a certain cam will work well with my stock heads, but will have negative affects if i get different heads, i would like to take things like that into consideration. If im going to spend that kind of money i would rather do it one time and one time only. Like if i bought a cam that works well with the stock heads, if im not satisifed with the power gain and decide to upgrade the heads to and the cam i just bought wont be enough for the new heads, then i have to by another cam. Make since? Im not looking for a complete rebuild for max power, even though a 396 stroker would be pretty sweet. Since i dont know a whole lot on performance engine building or modifiying. I would like to learn as much as i can and make my first step from there.
Would an upper EFI entake and plenium be of benifiet to my application, and if so how much would i look to gain?

Also, msd ignition, coils, boxes... Ive heard that with out performance mods, there basically a waste of money, true or not true, and would that help performance of my engine too.

Sorry for the long post and all the questions, i just want to learn as much as i can, before i start spending my money, as from the pricing ive done this stuff aint exactly cheap.

 

No.

I hear ya... you are taking a look at the big picture, where you can go and what makes the best use of your dollars, that's a sensible approach. The cam I suggested will provide a broad powerband with the stock heads, and more of the same with better heads. You could get a much wilder cam and get a lot more HP out of the motor with different heads, but that doesn't make a good truck motor. This cam will produce a healthy step up in power without anything else so I doubt you'll be dissapointed.


With better heads.. yes, with stock heads not much at all, you may even loose some low rpm TQ. This is the point I'm at right now, I have a new intake for the motor in my sig, and plan to add heads and 1.7 rockers to the existing cam. The big problem is this will take fuel requirements well past the 19lb injectors, out to 30lb injectors perhaps, and a bigger MAF meter is needed, so the computer needs to be reprogrammed for those changes. I have already purchased a tuner and plan to do this recalibration myself, but as you can see the list of things needed to make this step is long and expensive...

Heads - $1000+
Intake - $400
MAF meter - $75
Tuner - $550
Wideband O2 sensor - $250
Injectors - $200
ThrottleBody - $150

The stock ignition system is more than capable of producing arcing between wires if they are in less than ideal condition and are poorly routed.. in other words it's plenty strong for any naturally aspirated motor.

 

wow, thats alot of info right there!
Thanks, now ive hear of MAF conversions, what is this exactly, as i am pretty confused when it comes to all of the computers and what not.

 

mass air is only needed when you exceed what the stock efi can deliver or needs tuned. in your case with the cam mentioned you will be fine. with what conanski has planned its a no brainer since upgrading injectors will require a tune using a tweecer or running maf and still needing a tune possibly. x