stage 2 cam whos running them?

stonepusher · May 11, 2014

My stock cam has been fine. Now when I do my full motor build I will more than likely be doing a colt cam but for the average truck and average build I don't think they are absolutely neccasary.

swinky · May 11, 2014

fordboy11 said:
I wonder what kind of numbers would be seen on soley a colt stage 2 cam?

Not much I wouldn't think. But the decreased egts, better spool up and added reliability would make it worth it.

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fordboy11 · May 11, 2014

swinky said:
Not much I wouldn't think. But the decreased egts, better spool up and added reliability would make it worth it.

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Thats what I'm thinking also. My next motor build up will have a cam.

BlueWaffle · May 11, 2014

my RCD stage 1 (Colt I think?) works fine. carried big power all the way through 4000 rpms on the dyno.

stonepusher · May 11, 2014

Trying not to derail thread here but here is the most current graph of my truck. This was at the CenTex Dyno day. Fuel only was 658 and the 835 was ONE stage using .088 jet. This tune is only running 1.4 pw, we haven't live tuned these 285/150's yet we just threw my old tune on from when I ran the 225/100's and stock everything else. Hopefully planning on live tuning it this week and bringing the pw to around 1.8. But you can see in the graph the power carries out all the way, on nitrous it never stops gaining. I think for the average guy a stock cam is plenty sufficient, as for egts they run like a stock charger now. Hits 1500 at the track and cruising 70 they are around 800-850ish.

I just believe these engines are plenty sufficient with stock internals for the average and slightly above average guys. Look what Jesse and I have done recently on stock bottom ends. IMO if you don't plan on doing a full on engine build then a stock cam is fine.

swinky · May 11, 2014

If worn out lifters haven't already trashed the cam then yes I agree.

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Triumph1188 · May 11, 2014

stonepusher said:
Trying not to derail thread here but here is the most current graph of my truck. This was at the CenTex Dyno day. Fuel only was 658 and the 835 was ONE stage using .088 jet. This tune is only running 1.4 pw, we haven't live tuned these 285/150's yet we just threw my old tune on from when I ran the 225/100's and stock everything else. Hopefully planning on live tuning it this week and bringing the pw to around 1.8. But you can see in the graph the power carries out all the way, on nitrous it never stops gaining. I think for the average guy a stock cam is plenty sufficient, as for egts they run like a stock charger now. Hits 1500 at the track and cruising 70 they are around 800-850ish.

I just believe these engines are plenty sufficient with stock internals for the average and slightly above average guys. Look what Jesse and I have done recently on stock bottom ends. IMO if you don't plan on doing a full on engine build then a stock cam is fine.

Max torque on one run was 1300 and another 2200??

stonepusher · May 11, 2014

Triumph1188 said:
Max torque on one run was 1300 and another 2200??

Lol no, the 2200 was a bad reading

windrunner408 · May 11, 2014

The stock cam is fine if a guy buys a truck and just does power adders like injectors, turbo, etc and doesn't build the motor. However, my opinion is, when the motor gets yanked to do any sort of bottom end rebuild, you're really short servicing yourself by not putting in a new cam with new lifters (since the lifters will have worn to the old cam) and since you're going to be replacing a cam, why not just throw in a Stage 1 to lower lifter pre-load and help lengthen the life of your lifters?? Idk, this is just how I see it. I know for me, I'll be doing a cam when I do my motor in the next few months and it's really for nothing more than to hopefully lengthen the life of things.

stonepusher · May 11, 2014

windrunner408 said:
The stock cam is fine if a guy buys a truck and just does power adders like injectors, turbo, etc and doesn't build the motor. However, my opinion is, when the motor gets yanked to do any sort of bottom end rebuild, you're really short servicing yourself by not putting in a new cam with new lifters (since the lifters will have worn to the old cam) and since you're going to be replacing a cam, why not just throw in a Stage 1 to lower lifter pre-load and help lengthen the life of your lifters?? Idk, this is just how I see it. I know for me, I'll be doing a cam when I do my motor in the next few months and it's really for nothing more than to hopefully lengthen the life of things.

I agree, if you are building a motor than a new came is a must IMO but depending on goals a new stock cam will be sufficient. From my understanding the stock cam was designed around the VGT turbo so if a guy is planning on staying VGT then I wouldn't shy away from that. Basic builds have been proven to work VGT or non VGT, like mentioned above take my truck and more notably Jesse's. I have seen many builds get over thought and not go anywhere.

KCTurbos · May 11, 2014

stonepusher said:
Trying not to derail thread here but here is the most current graph of my truck. This was at the CenTex Dyno day. Fuel only was 658 and the 835 was ONE stage using .088 jet. This tune is only running 1.4 pw, we haven't live tuned these 285/150's yet we just threw my old tune on from when I ran the 225/100's and stock everything else. Hopefully planning on live tuning it this week and bringing the pw to around 1.8. But you can see in the graph the power carries out all the way, on nitrous it never stops gaining. I think for the average guy a stock cam is plenty sufficient, as for egts they run like a stock charger now. Hits 1500 at the track and cruising 70 they are around 800-850ish.

I just believe these engines are plenty sufficient with stock internals for the average and slightly above average guys. Look what Jesse and I have done recently on stock bottom ends. IMO if you don't plan on doing a full on engine build then a stock cam is fine.

That's pretty awesome to make that much power at that low of a pulse width. I heard about your results a few weeks ago but I did not see any threads on it. Do u have any sort of build thread to make it easier to stock you... lol

I am very curious to see how your power changes when u increase the pulse width. I know 75% nozzles can dump about 240cc at 2.4 pw. So with twice as big of nozzles I would theorize that u could dump 240cc at 1.2pw and 285cc at 1.4pw... those r all just guesstimates so it will be very interesting to see how much power is left on the table when extending the pw

Triumph1188 · May 11, 2014

KCTurbos said:
That's pretty awesome to make that much power at that low of a pulse width. I heard about your results a few weeks ago but I did not see any threads on it. Do u have any sort of build thread to make it easier to stock you... lol

I am very curious to see how your power changes when u increase the pulse width. I know 75% nozzles can dump about 240cc at 2.4 pw. So with twice as big of nozzles I would theorize that u could dump 240cc at 1.2pw and 285cc at 1.4pw... those r all just guesstimates so it will be very interesting to see how much power is left on the table when extending the pw

It might not be quite the same amount of fuel per PW due to those being hybrids and slightly lower injection pressure. Either way, though, we learn more!