I will say this from what I know...I am pretty sure that the ipd cams and the RSI cams came/come from the same factory.
Please tell me it wasn't OCG...
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I will say this from what I know...I am pretty sure that the ipd cams and the RSI cams came/come from the same factory.
Please tell me it wasn't OCG...
Did you both use a high EP cam lube, fill the oil wells with oil, and break the cam in?
Even running used shims on a new cam is questionable.
Stiggy - Did the RSI cam have a dark coating on the lobes before you installed it?
I used Driven assembly lube buttered on the cam, then did the typical ~2k/20min break in cycle with Driven BR30 break in oil, did one more cycle then dumped, changed filter and ran my usual Redline. Brand new set of buckets every time (gets expensive!) I did not pour any oil into the head though. That was my third brand new RSI cam broken in that way and the first to be problematic.
Yeah it did have kind of a dark finish to it, never really thought about that.
Sounds like you did just about everything that you could to help with the cam break-in.
IPD also lists the cams as "billet". I'm not sure if they're actually made from a billet of steel or if it's a chilled billet casting. I can't think of any billet steel that would work well in a sliding friction application (cam lobe and flat tappet, roller is ok), unless it was hardened and used a coating.
So we did the great RSI stage 3 vs IPD Turbo camshaft on the dyno and without a doubt the IPD cam made on average 15whp better than the RSI Stg3.
Forgot to add that I highly doubt the IPD cams are made from a billet in that sense... otherwise we'd have a lot more of these threads! Supertech actually has a big warning label on the cam follower boxes stating you can't run them with a true "billet" cam unless things are DLC coated.
Can you show the dyno plot comparison? I'm surprised the IPD turbo cam made more power.
In their three minute youtube IPD claims the cams are made from carbon steel billet.
Which means it could be any steel, since the definition of steel is iron+carbon.
What's weird is that the website and video show a coated cam, but the two I've purchased and installed were not coated at all. Just machined and ground.
You can also see an uncoated cam in the failure from leecatd8209 as well, but not discernable in the OPs pictures.
I talked to Ken Pruett from IPD yesterday for about 30min about my issue's and concerns. He was interested but had no ideas to the cause. He told me they have not had any issues like this from IPD camshafts that he was aware of. I suppose I will setup this camshaft with some new used shims and hope the issue does not happen again. I kind of think the issue is related to the coating that was on the camshaft mostly because of the damage to the trailing edge of the shaft's lobes but I don't know how to prove that.
-Sam
I'll tell you right off, you're gonna be looking at the same issues with fresh shims I'd bet. I went looking for the pics of mine, looks like they are archived somewhere else.