bigrpowr

is it common to spin the cam with E85 or it just become's more possible ? i've been planning on going to an E85 tune, but will certainly reconsider if this is a normal failure from running it.

A418t81

No, it's not common in general or to E85. Like I said, there is a very weak correlate to high torque cars spinning the cam. In my car I ran E85 for a year with no issue, but when I put it on the dyno to squeeze more power out, the torque went up 30-40 ft/lbs and it happened then....right as I reached 700 wtq. My buddy and tuner has an 07 with upgraded VTGs that has made as much as 780 wtq, and has never had an issue.

I would still recommend E85 tuning. It absolutely transforms the car. They are monsters on ethanol.

bigrpowr

roger that. we usually weld the cam gears on our V8 diesels when we go over 1500tq , just a safety measure. my plan with this car was to make 600 ish hp .. i just really dont feel like being forced to tear this motor apart.

how did you find a reliable source of E85 ?

A418t81

They sell it at the pump. I don't tune my cars ever on the ragged edge for actual E85. I usually have a gallon or two of pump mixed in. This accounts for any variation in E85 mixture at the station and affords a degree of safety.

bigrpowr

cool. i wasnt aware of the tuning side adjustment. figured i needed a relatively consistent mix. i have a station about 20 miles away , i'll just buy it in bulk there. thanks !

A418t81

It depends on how you've tuned it. There isn't actually much power to be had on actual E85 as compared to say E60. I'm usually around E60-70 when I tune the car and I have the timing backed down slightly from maximum once the tuning is complete. This will allow fluctuations in ethanol content while not adversely affecting the motor. I don't even run the pump gas totally out when I switch from pump back to E85. No need

bigrpowr

thanks a ton. i haven't talked to todd at protomotive about it yet because i havent swapped the injectors , figured i would roll over to it after the tune only power wore off , which wont take long .

Turboslut

Just got the CEL on my car last week. Being hopeful and ordered the actuator for replacement...if it persists after the install then I to have fallen victim to the spun camshaft.

2008 car...76k miles on the clock.

estrellajon

Good luck . Let us know. I'm confident the actuator will fix it

CincyScott

Sometimes the sleeve corrects itself too. I think both Therock88 and ibanezgod both have had the light come on and then go off. Ibanezgod's came back, but DC's has stayed off.

A418t81

Yea the sleeve continues to spin until the oil feed holes aren't blocked anymore. That said, there's nothing to prevent it from continuing to turn and then obstructing the holes again.

Ibanezgod

yup, made it 7700 miles.

what damage can occur if the sleeve doesn't correct itself or corrects itself afte a period of time/mileage? Any idea? It's obviously not good for the engine, but doesn't seem to be catastrophic. Aren't there multiple holes?

Turboslut

Yeah I have parked my car until I swap the actuator, but I dont feel right potentially starving some component of oil that was designed to be awash in it, if the CEL remains after the swap.

bigrpowr

smart move.

xxdachosen1xx

Well after driving a Macan S around for nearly 3 1/2 weeks I finally received my car back and although I must say I did thoroughly enjoy the Macan S I was ready to get my car back. All I have to say is thank god for my Hendrick Guard aftermarket warranty coverage, they covered the repair 100% outside of the deductible which was only $150 out of my pocket (total was ~$8500). I originally paid $2500 for the powertrain aftermarket warranty 4 years 50k miles. Obviously the warranty has paid for itself almost 4 times over. The claim was seamless and they didn't blink an eye when it came time to pay the dealership, I'm thoroughly impressed in Hendrick guard warranty.

They also let me keep the old camshaft just incase I have this failure in the future I can have the old cams pinned, but I doubt I will have the issue in the future being that both sides have been replaced.