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3.0 cams or SVT cams??????????

L

LLADNAR

CEG'er
Joined
Jan 5, 2007
Messages
231
Location
NE Kansas
well i am in the middle of my build and i need to decide weather to put in my 138k cams out of my svt motor or just leave the very clean and much lower milage ones in my 3.0 motor, just curious what kind of a differance would it actually make, is it worth the trouble? :shrug:
 
If you are driving your car around town alot I would stick with the 3L Cams. The tq is nice and best of all you dont have to go hihg up in the revs to get the power.

Aaron
 
Use the SVT cams. Why compromise the power potential? The slight loss of low end power is hardly noticable compared to the top end gains, especially with a 20% increase in engine displacement from the 2.5 to the 3.0.

On the 2.5, the cams were responsible for most the 25 to 30 HP gain from the base 2.5 to the SVT. It should be worth more than that with 20% more engine.

It's your choice.
 
I would use the svt cams, but at least put new guides and tensioners in. No sense in reusing old part that wear. The chains on the other hand don't seem to be a big deal.
 
I agree with using the svt cams.

And to add onto the other posts about low end torque...

You will have a little less tq down low using the svt cams instead of the 3L cams. But, you still will see a big tq increase using the 3l with any cams than you will with the 2.5. So dont think using the svt cams will neglect getting more tq.
 
SVT SNOB said:
If you are driving your car around town alot I would stick with the 3L Cams. The tq is nice and best of all you dont have to go hihg up in the revs to get the power.

Aaron
Click to expand...


I don't agree with this statement. I've driven both.
The SVT cammed 3L has plenty of low-end torque to break loose the tires so why need more? THen the topend is a bit better in the SVT cams.
These motors live from 5000-7000rpm.
 
Do the 3 liter cams become the choice for boosted applications? Seems like they would.
 
Pudmunkie said:
Do the 3 liter cams become the choice for boosted applications? Seems like they would.
Click to expand...

Nope. Not with the normal applications.
They would be fine with N/A if you wanted more low end torque at the expense of high end. Also, you can really stretch them out into the upper rpms with open intake and exhaust.
So if you didn't have SVT cams then I'd use them over standard SE cams.
 
ok i ,am convinced i will go and swap in teh svt cams,, i guess if one isn't quite up to par i do have 2 sets:laugh: my shop is quite full of duratec crap now, i have 4 duratecs on my garage floor now 2 3.0 and 2 2.5,, it will be quite a cleanup.
 
I am using the SVT cams. I bought new timing tensioners (not chains). I wish I could have used the almost new 3L chains.
 
Bugzuki said:
I am using the SVT cams. I bought new timing tensioners (not chains). I wish I could have used the almost new 3L chains.
Click to expand...


yeah i hear that,, my new engine is supposed to have 75k on it but by the looks of the inside i would say 7500 miles,, everything inside looks sooo clean and new,, but on the plus side,, not but 3 months ago i put all new chains, tensioners, and guides in mine, so i just swapped over all the practically new hardware
 
warmonger said:
So if you didn't have SVT cams then I'd use them over standard SE cams.
Click to expand...

I've seen the Ford p/n's for the cams used in the pre 2000 3.0's and other than the LH intake cam (which drives the H2O pump), the cams WERE 2.5 Duratec (non SVT) cams. If this info. was correct, it's another example of Ford sharing parts for cost reduction purposes.
 
Bradness said:
I've seen the Ford p/n's for the cams used in the pre 2000 3.0's and other than the LH intake cam (which drives the H2O pump), the cams WERE 2.5 Duratec (non SVT) cams. If this info. was correct, it's another example of Ford sharing parts for cost reduction purposes.
Click to expand...

Yeah, but the cam specs have been posted for the later model 2000+ cams and they are different on the ovalports.
 
Ive got a 3L with 3L Cams.
Pulls all the way through 6500 RPMS

also, Take a look @ 3L Dyno's with the SVT and the 3L Cams.

The 3L Cams are making the same HP with MORE TQ than the SVT Cams.
 
JoeM said:
Ive got a 3L with 3L Cams.
Pulls all the way through 6500 RPMS

also, Take a look @ 3L Dyno's with the SVT and the 3L Cams.

The 3L Cams are making the same HP with MORE TQ than the SVT Cams.
Click to expand...

Yea, and SVT Cams can pull ya way beyond 6500 RPMs
 
I'm not willing to dig up any dyno's of the 3L w/SVT cams, but I remember seeing the HP (after the secondaries open) being higher than the 3L cams and it continues to make power beyond 7000, where your linked dyno sheet showed the hp dropping after around 6000. The torque curve with the SVT cams is pretty flat and it maintains it's torque way after the 3l cams start their decent.

Did you do back to back dynos with SVT cams and 3L cams?
 
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