Considering Cams
Right now I'm running the stage 2 Saleen from Brenspeed, about 7.5-8PSI boost, and have been thinking of getting the detroit rockers, now I do drive my car ALOT, and one of my reasons to get the stage 2 was to stay a bit lower on the boost, would cams effect the reliability at all? Such as cold starts, to much power, etc.
I have 3.73s so I don't see a problem with low rpm driving.
I have 3.73s so I don't see a problem with low rpm driving.
I have the saleen and the detroit rockers and my car runs fine. At start up it will come up to 900 rpms and then back around 550 and then maintain around 750. I have not had any problems with cold starts. I do know that when i had the supercharger isntalled brent told me that if my car died more than twice in a week to call them and they would fix the idle. Mine has died maybe twice and i have had the supercharger since the first week of december. THe rockers are not the blower grind if u were wondering.
well when i got the cams I was thinking of staying NA but then i thought if i were to dump that much money for longtubes I might as well use that for a supercharger. Just poor planning on my part. my numbers are 438 hp and 406 torque
I just installed the detroit rocker s/c grind on my car a couple weeks ago, so far I like them.
Cold start is like with stock cams.
Dyno shows low end has a little less power (still spin tires in 2nd if I want to). High end doesn't level off around 5k rpms like stock cams, so they pull harder on top.
The throttle response is quicker, unless it's in the tune.
I have been able to get it to buck and surge, but you have to be in a higher gear and around 500 rpm (trying to keep it quiet in the neighborhood until the mufflers came in).
I went from 429 rwhp to 454 wrhp (installed LT headers at the same time though, so not sure the increase is completely due to cams).
Aside from the sound, another pleasant surprise is my car shakes a little now too.
I see you've installed headers...cams are much easier to install, just get the right tools, took about an hour/side for me. And if I had it to do over again, I think I'd disconnect the starter and alternator leads in order to move the looms completely out of the way.
Cold start is like with stock cams.
Dyno shows low end has a little less power (still spin tires in 2nd if I want to). High end doesn't level off around 5k rpms like stock cams, so they pull harder on top.
The throttle response is quicker, unless it's in the tune.
I have been able to get it to buck and surge, but you have to be in a higher gear and around 500 rpm (trying to keep it quiet in the neighborhood until the mufflers came in).
I went from 429 rwhp to 454 wrhp (installed LT headers at the same time though, so not sure the increase is completely due to cams).
Aside from the sound, another pleasant surprise is my car shakes a little now too.
I see you've installed headers...cams are much easier to install, just get the right tools, took about an hour/side for me. And if I had it to do over again, I think I'd disconnect the starter and alternator leads in order to move the looms completely out of the way.
That's what the dyno graph said. I don't think they changed the timing and fuel curves for the cams, maybe a good dyno tune will make a difference. It's at 450 at sea level, so that's about all I need. I'm also at about 6000' elevation, maybe the 'extreme' elevation may throw a wrench into the correction equations.
Just to clarify, (and restore reputation of these cams?) They say they usually gain much more power than they did for me, and don't change MPG.
I recently found and fixed a vacuum leak which change the running characteristics. Maybe this leak snowballed in the ECU and caused power/MPG issues...it did fix the idle issue.
I recently found and fixed a vacuum leak which change the running characteristics. Maybe this leak snowballed in the ECU and caused power/MPG issues...it did fix the idle issue.
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junior04
4.6L (1996-2004 Modular) Mustang
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Sep 28, 2015 10:53 AM



