Roush 511 problems

[SandyC]

The programming is indeed proprietary and is password protected by Roush. You gotta be a dealer to get the password to access it.

[csx4910]

Sandy, Our 2 motors are mirroring each other with regards to the problems. My rear seal has already been replaced but Anthem also had a small leak by the trans. My new problem is exactly what you are describing with the missing after sitting at the same RPM and it is getting more severe. That is why I took it back in Friday. Anthem is a Roush dealear and both they and Bob (I cannot remember his shops name)here in town have tuned it.

For those that seem to have a problem with me buying an engine "writing a check" was I belive was the comment, that is no one's business but mine. I don't feel the need to explain to anyone else but owning my own business and working 90-110 hours a week i don't have time to mow my grass let alone sepnd hours working on a car. I don't see why that should put me in a lower class of cobra owners.

Roush had helped out and after that it has been in the shop twice more after breaking. Roush has been better in responding faster and getting the parts but at the same time I think it is a bit excessive to have a car with 250 miles on it (not even broken in) back in the shop 5 different times in the last 3 months.
Ron

[BossCER]

csx4910,
I feel your pain and know your frustration.
Aftermarket EFI can really try your patience, but when you get it right, and you will, you will be very happy w/ the drivability.
I have been down the aftermarket EFI road more than once and have to tell you honestly that the key to making it work correctly is in the software and the tuner.
I can also tell you that even though as others have said that the Roush programming is proprietary, it can be gone around and reprogrammed if necessary.
Dave at AutoTrend EFI is an expert in these areas and has my injected Boss motor running like a top on Accel Gen. 7 software.
At the very least, I would suggest that you give him a call and bounce your problem off of him. (530) 642-0999
Check out his website if you get a second http://www.autotrendefi.com/
I wish you the best of luck.
Chris
Send me a PM if you would like to discuss any further

[SandyC]

I just learned that Roush is flying out their EFI expert with his computer to Phoenix this Monday from the factory in Livonia, MI to solve these issues that are affecting three cars. Now that, my friends, is customer service.

[csx4910]

I second that. I had talked with Todd at Roush this morning and he mentioned the possibility. Apparently we have 5 of the same engine here in Phoenix and 3 511 normally aspirated engines. I just want o be able to enjoy my car this fall. Hopefully they can figure out what is the bug since it involoves all of us with the same engine.
Ron

[HighPlainsDrifter]

Hi,
The stack efi doesn't like alot of overlap in the cam, the easiest and cost effective solution is to change the cam out for a smaller duration and wider lobe center. Comp cams can custom grind one , call the cam help #.
Good luck,
Perry.