I had several rocker arms fail and they scarred the cam in the process.
Do you have any pics of the damage? I'm assuming that you run good synthetic oil at the proper intervals. I'm wondering if there might be an oil supply problem to the top end of the engine, but there would most likely have been hydraulic tappet noise from lack of oil pressure if that were the case. The top end of these engines have been generally pretty solid so far. Is there any cam bearing wear? I'm curious about your failure.
He's gtb2260. Cams would be a very good idea to push the powerband up where the turbo lives.
Indeed. I recently had a conversation with one of our performance cam vendors about these. He was of the mind that the CR cam's design being what it is, regrinding like what happens for the performance cams we have for older TDIs is not going to be viable. The heat and forces placed on the cam during regrind can allow the lobes to move on the shaft. Might be awhile (if ever) before we have options for this reason. The other thing keeping this from happening is that the CRs don't have cam issues like what drove development for PD cams. It's not broke, no need to fix it.
A performance regrind has been done by at least one other person so it is possible to do.
Oh, yeah. It's totally possible, just not as easy or as cheap as with conventional solid iron cams. Clearly VW engineers were looking to reduce the mass and therefore the total rotational mass of conventional iron cams in the CR engines so they went with these lightweight ring cams.
Yes 5 sets. I'm still not used to referring to two cams.
Good luck with that. The NA V8's are making north of 400 hp stock these days.
I could almost keep up with a programmed 360+ HP v8 up to 80 mph before I started to run out of fuel with the stock HPFP. Can't wait to see what it runs like with good ported heads. This setup will give them a run for there money at slower speeds at least.
The GTB2260 is only good for 310 HP in optimal conditions. Curious to see what I can get out of it.
Right on. I'd love to see what kind of quarter mile times your car can lay down once everything is well tuned. I'd think mid to low 13's should be pretty attainable. I believe TurboJohan here has a pretty sick mk6 build also.
And this was after they went through about a half dozen CV axle versions before they found one that didn't twist into a pretzel on launch.A ported head, oversized valves, and performance camshafts should go a long way in the power department. The vortex effect in these heads are a big blockage point in making more power.
Doubt I'll get any good 1/4 mile time. I'd need a set of slicks to do this power justice and then every thing else would start tearing up.
With the GTB2260 and stock HPFP I'd make 45 mpg @ 80 mph on road trips. 50 mpg @ slower speeds is easily attained. Than again this is a manual trans. Have not been on any road trips since cp3 install so don't know yet how it will affect mpg. They say the cp3 takes less power to run then the cp4.1. I'll probably lose some mpgs though with ported heads. Quess we'll soon find out soon if that vortex effect does anything for mpg.
Maybe next time I have to pull the transmission I can look into a new diff. So far I have been more focused on increasing top end power as these syncros don't like 1/4 mile runs with an SMF. I've had to replace them once already.
Ya my thoughts to on boost creep. If I make 300 HP I'll be happy.
Do you have a link for those transmission braces? I'm not finding them.
Running a 215/55/17 I can get 47 at 70mph and like 43 at 80mph on a good hot 95° day. Before running 225/45/17 I was lucky to get 42 at 80mph. This is completely stock undeleted exhaust. The dsg 6th gear is .756 vs .716 6spm, and differential is 3.04 vs 6spm 2.76, I'm really hoping that when I upgraded the diff I can get it with taller gearing. As far as the cp3, from what I read on other thrreads, people actually saw a 1-3mpg gain when they switched to the cp3 because apparently it flowing more fuel, it has less resistance in the fuel system and keepsee rail pressure higher, basically the same reason it also increases your power with big turbos. Even with vw's claimed vortex porting swirl, I think a better breathing head equalling a better breathing engine and the turbo not having to work as hard will increase fuel economy. Keep us in the loop as you know more.
The base camaro these days is a V6 with 320 hp. Pretty impressive. You can get the base model for $26k. The V8 makes 420 hp stock. Similar situation with the Mustang. Neither will get you anywhere near 40 mpg though.
