We have been selling cams with 260/260 11mm lift and 38mm base circle sizes for a while.. This would require head work to fit, and puts down substancial power incomparison to drop in cams. Ask around about the tdimeister cams here.
I'm not sure what the specs are on the cam but Paul did tell me that it didn't need any clearancing of the head or upgraded valve springs. Its a drop-in the same as the stage 2. I hope that is still the case. I don't want to go in the motor at all. I'm just optimizing parts when they are easier to replace. Timing belt is due so its a "while I'm there I might as well upgrade it" thing. Just looking for the most bang for my buck.We have been selling cams with 260/260 11mm lift and 38mm base circle sizes for a while.. This would require head work to fit, and puts down substancial power incomparison to drop in cams. Ask around about the tdimeister cams here.
i have the colt stage 2 cam and i cant say i could tell a power increas. basically at some point increasing lift is useless but duration could change things. the heads flow like crap and i wasnt able to do a direct before and after comparison. i got the double valve springs, black nitrided lifters and viton oil seals. had frank rebuild the head. then i took mine to a shop and had the whole thing disassembled and cryo/heat treaded and reassembled. so far no issues but i am slightly worried about the cam lobes appearence. anyhow, all in all i probably would should have stuck with the factory cam and upgraded other things for the money.
Id talk to whitbread too, but a lift pump and colt cam will be a noticable differenceSo do others agree with this? is it not worth $500 or so for a larger cam and lifters? I would hate to install it and spend all that money and be completely dissapointed... I plan on installing a lift pump at the same time... is that very noticable? also when i did my head studs I noticed the coating was worn off all the cam lobes but i dont know how much they were really worn... does anyone else with a ALH notice cam lobe wear? i have 180 k miles
IMHO, you won't get good results from a bigger cam on a stock unported head. I've read many times that the stock head port casting leaves a lot to be desired. So no matter how big your cam is, the head is only flow so much. As the saying goes, you can't 10 pounds of sh!t in a 5 pound bag.Big cams don't net a huge power gain with these engines.
They are a good breathing mod, but have realistic expectations..
Go big on fuel, turbo, and/or N20 and you will get more results for your money
Exactly! The stock heads are terrible....so are stock turbos. A cam with a stock turbo isn't going to net a whole lot as the turbo is the bottleneck.IMHO, you won't get good results from a bigger cam on a stock unported head. I've read many times that the stock head port casting leaves a lot to be desired. So no matter how big your cam is, the head is only flow so much. As the saying goes, you can't 10 pounds of sh!t in a 5 pound bag.
A better approach is to port the head and match the cam to head flow. Think of it as a combo.. as they complement each other.
The funny part is that we still have other bottlenecks holding us back from making more power.Here is my beef with saying stuff like this
people are always quoting "our cams put down some significant power gains over the others"... so show me the proof!
anyone who's installed a tdimeister cam hasn't compared it to any other head to head, no-one has ever posted any proof.
Anyone who has installed it has also done a significant amount of other work at the same time
I'm not saying that your product isn't superior, I'm just saying.
Hell, andy2 is running a stock ALH cam at 377whp
Greg; Am anxiously waiting for you to get one of these engines on a pump and document what modified cams do on these engines. When I see cams for sale called stage one,two,three that have not even been tested in an engine it makes me wonder. Science will get you only so far, testing is where the rubber meets the road. I have little experience with diesels but have learned a little about engines drag racing Harleys for 25 years.One more diesel cam myth
Ruff idle will never happen with a diesel cam, there is no fuel in suspension to cause it. I can give you the long explanation, but this is the bottom line.
The BMM pistons started out at 18.5:1 and with the relief mods are down at 17.5:1 and with my cam factored in my dymanic CR is probably as low as 16:1 or lower at this point my maths fails me. I am going to pull the head soon and i will take a proper set of measurements then.resto1975
what specs are u running ?