I kind of figured that might be the case. I was reading an article that AFR did on a stock 5.0, they claimed 100 horsepower increase while still using the OEM cam. Of course I would eventually change the Cam to match the rest of the setup, but had considered doing the Heads/intake/exhaust first and see what kind of increase I obtained.....mainly out of curiosity.
The stock cam can support over 300rwhp, especially if you add 1.7 roller rockers to increase valve lift.
the stock cam is pretty good for a blower. that is a result of the lack of valve timing overlap.
but by itself, naturally aspirated, even with great heads and intake, you'd probably be doing pretty good if you hit 275-280 horses at the rear wheels. the lift and duration just don't let enough air get into the cylinders for big power.
The stock cam can support over 300rwhp, especially if you add 1.7 roller rockers to increase valve lift.
Another thing that comes first in my mind is
If you got the motor in a heads/intake off condition .....
It is just a tiny bit more work to slide in another cam :Word:
Its just way more work and expense of fluids, gaskets, etc to do a
cam at a later time
Grady
Callinghere unless you post picture proof.
Adam
N/A, 300rwhp is just not going to happen. That would mean picking up 110rwhp with just heads and an intake.
You can't just add up all the "adds xx hp" numbers that come on the boxes. I just don't think it's going to get to 300rwhp with a stock cam. The most aggressive combination out there for a 5.0 is the Trick Flow kit, and they advertise 350 crank hp. Anything bigger than that, and you have to start notching pistons and stuff. You're talking about getting within 5hp of the most aggressive H/C/I combination.
Kurt
I'd have to say, if you like streetability, 280rwhp with the stock cam would be nice.
Not at all do I regret it.
On the stock motor top to bottom, but bolt ons like a C&L maf, 65 mm TB, headers, off road X, cat back, 3.73s, suspension work, slicks, skinnies, underdrives etc.. you know the basic tricks it bested a 13.17 @ 102.8 MPH with a 1.78 60'.
Next, I added the eddie efi performer, 24 lb injs and a 75 mm pro-m bullet maf, and the afr 165 cc pedestal mount heads, and I busted a pedestal installing my 1.7 RRs so back on went stock rockers. I made sure to port match the eddie to the afrs... it was waaay smaller than the heads.
Went to track like this. I went 12.58 @ 109.00 MPH and ran two 12.60s both at 108.xx and 60 foots were in the 1.7-1.8 range. So I got a trap speed gain of 6-7 MPH average and dropped 6 tenths. that equates to 60 RWHP. From heads and an intake.
Then, end of year only change was cooler weather and adding on my 1.7 Crane roller rockers. The responded with a string of 1.8-1.9 60's and 12.40s at 110.xx and a best of 12.301 @ 111.8 MPH and a 1.73 60' on a burned out trac loc. I was getting one slick but the baseline suspensions setup was helping out. New posi unit and some 3.90 gears and that car would have went 11.90s on the stock short and stock cam.
My car use to pull to the stock limiter. Even with an off road X pipe it was dead quiet and sounded stock, unless WOT then sounded more like a crotch rocket. Stock cam also gave it excellent manners and fuel mileage. I drove it from here [Leamington, ON about 30 mins SE of DEtroit] top Bolingbrook, Illinois. I filled up right before the bidge on our side. It was a 6 hour drive, I went about 65 MPH [took it easy and had the T5-Z so a .73 5th] and it only used 3/4s of a tank to get there. I **** you not.
That's why I stopped posting on the net so much b/c people were always saying I was a liar be it the 13.1s on stock motors or the 12.30 on stock short and stock cam no power adders. Here is my webpage:
http://www.geocities.com/schlodessssu/steves84.htm I have an SVO now but down near the bottom is a vieo of my old notch with the 12.30 setup beating up on a 366 whp turbo civic, and, the link to my Mustang LX page with my old combo.
Stay stock cam, you won't regret it, esp with all the emissions and hard times being given cars these days. If worst comes to worst and you don't like it, buy a cam! But from EXPERIENCE and having run one, stock cam and a 1.7 RR will kick some arse. My LX Notch weighed around 2900 with me in it. Hope that helps.
The most aggressive combination out there for a 5.0 is the Trick Flow kit, and they advertise 350 crank hp.
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