Attention: TDR Forum Junkies 
I've got close to 3000 miles on my new PDR cam, what a huge difference in breathing between the stock cam.
Exhaust temps are down 150 deg while cruising down the freeway. I still have Turbo lag but not near as bad, maybe hits about 100 rpm lower than before.
Probably the most noticeable difference is turbo cool down, turbo's cool down in about half the time. I haven't done a mileage check yet, but it must be better if it is breathing this good.
I had my head O ringed at the same time the cam was installed, it sure was nice to have a competent shop do the work, Piers has a well organized shop. If anyone wants their cummins juiced up this is the place to go and if you want to go Salmon fishing while your truck is being worked on, Piers can take care of that also.
Kevin
Exhaust temps are down 150 deg while cruising down the freeway. I still have Turbo lag but not near as bad, maybe hits about 100 rpm lower than before.
Probably the most noticeable difference is turbo cool down, turbo's cool down in about half the time. I haven't done a mileage check yet, but it must be better if it is breathing this good.
I had my head O ringed at the same time the cam was installed, it sure was nice to have a competent shop do the work, Piers has a well organized shop. If anyone wants their cummins juiced up this is the place to go and if you want to go Salmon fishing while your truck is being worked on, Piers can take care of that also.
Kevin
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