Dyno Problems!!!
Banned
Joined: May 2004
Posts: 3,797
Likes: 2
From: Richmond Hill, Ontario
2003 E55 AMG
Your car is an 06..
If it is dropping to 10:1 at 5,000RPM and over then you have 1 of 3 problems:
1) Too much heat, ECU is pulling timing and dumping fuel
2) Belt is slipping like S.O.B.
3) The load limiters in your ECU were not programmed out with the Evotech flash and ECU is bleeding boost by opening bypass valve and dumping fuel. This is what we corrected and R&D'd on Jangy's 2006 VR550 package.
More than likely, Evotech does not have the proper parameters in the ECU for 2006 cars to deal with the load limiters. The only way to know 100% is datalog the car and see if the boost drops back down to 12psi from 15psi when RPM goes above 4,500RPM. If you see boost drop at high RPM then you know its your load limiters kicking in. (NOTE: You have to first make sure your belt isnt slipping.. check for belt dust and frayed edges to be sure it isnt the belt first..)
If it is dropping to 10:1 at 5,000RPM and over then you have 1 of 3 problems:
1) Too much heat, ECU is pulling timing and dumping fuel
2) Belt is slipping like S.O.B.
3) The load limiters in your ECU were not programmed out with the Evotech flash and ECU is bleeding boost by opening bypass valve and dumping fuel. This is what we corrected and R&D'd on Jangy's 2006 VR550 package.
More than likely, Evotech does not have the proper parameters in the ECU for 2006 cars to deal with the load limiters. The only way to know 100% is datalog the car and see if the boost drops back down to 12psi from 15psi when RPM goes above 4,500RPM. If you see boost drop at high RPM then you know its your load limiters kicking in. (NOTE: You have to first make sure your belt isnt slipping.. check for belt dust and frayed edges to be sure it isnt the belt first..)
Thread Starter
Senior Member
Joined: Jan 2008
Posts: 286
Likes: 0
From: Elk Grove, CA
06 S55 AMG, 03 SL55 AMG, 02 S430(sold), 05 F150, 06 Ranger, My baby 07 HD Rdking
Your car is an 06..
If it is dropping to 10:1 at 5,000RPM and over then you have 1 of 3 problems:
1) Too much heat, ECU is pulling timing and dumping fuel
2) Belt is slipping like S.O.B.
3) The load limiters in your ECU were not programmed out with the Evotech flash and ECU is bleeding boost by opening bypass valve and dumping fuel. This is what we corrected and R&D'd on Jangy's 2006 VR550 package.
More than likely, Evotech does not have the proper parameters in the ECU for 2006 cars to deal with the load limiters. The only way to know 100% is datalog the car and see if the boost drops back down to 12psi from 15psi when RPM goes above 4,500RPM. If you see boost drop at high RPM then you know its your load limiters kicking in. (NOTE: You have to first make sure your belt isnt slipping.. check for belt dust and frayed edges to be sure it isnt the belt first..)
If it is dropping to 10:1 at 5,000RPM and over then you have 1 of 3 problems:
1) Too much heat, ECU is pulling timing and dumping fuel
2) Belt is slipping like S.O.B.
3) The load limiters in your ECU were not programmed out with the Evotech flash and ECU is bleeding boost by opening bypass valve and dumping fuel. This is what we corrected and R&D'd on Jangy's 2006 VR550 package.
More than likely, Evotech does not have the proper parameters in the ECU for 2006 cars to deal with the load limiters. The only way to know 100% is datalog the car and see if the boost drops back down to 12psi from 15psi when RPM goes above 4,500RPM. If you see boost drop at high RPM then you know its your load limiters kicking in. (NOTE: You have to first make sure your belt isnt slipping.. check for belt dust and frayed edges to be sure it isnt the belt first..)
Banned
Joined: May 2004
Posts: 3,797
Likes: 2
From: Richmond Hill, Ontario
2003 E55 AMG
Well.. you are definitely loosing power.. You are probably down 30-40hp if not more.
It is not dangerous.. it is actually safe because the ECU just dumps fuel which keeps everything cool and under control. Just that your car is not running as it should.
And also, if those guys are trying to tap a "boost reading" I would turn and RUN the other way... You dont tap boost on dyno pulls..
It is not dangerous.. it is actually safe because the ECU just dumps fuel which keeps everything cool and under control. Just that your car is not running as it should.
And also, if those guys are trying to tap a "boost reading" I would turn and RUN the other way... You dont tap boost on dyno pulls..
Member
Joined: Jun 2006
Posts: 233
Likes: 0
From: Bay Area, CA
E55
However, I have not done and have not heard someone doing this on the E55 yet.
Thread Starter
Senior Member
Joined: Jan 2008
Posts: 286
Likes: 0
From: Elk Grove, CA
06 S55 AMG, 03 SL55 AMG, 02 S430(sold), 05 F150, 06 Ranger, My baby 07 HD Rdking
Well.. you are definitely loosing power.. You are probably down 30-40hp if not more.
It is not dangerous.. it is actually safe because the ECU just dumps fuel which keeps everything cool and under control. Just that your car is not running as it should.
And also, if those guys are trying to tap a "boost reading" I would turn and RUN the other way... You dont tap boost on dyno pulls..
It is not dangerous.. it is actually safe because the ECU just dumps fuel which keeps everything cool and under control. Just that your car is not running as it should.
And also, if those guys are trying to tap a "boost reading" I would turn and RUN the other way... You dont tap boost on dyno pulls..
Thread Starter
Senior Member
Joined: Jan 2008
Posts: 286
Likes: 0
From: Elk Grove, CA
06 S55 AMG, 03 SL55 AMG, 02 S430(sold), 05 F150, 06 Ranger, My baby 07 HD Rdking
The only way to know 100% is datalog the car and see if the boost drops back down to 12psi from 15psi when RPM goes above 4,500RPM. If you see boost drop at high RPM then you know its your load limiters kicking in.
So how do I datalog, and where can I do that?
So how do I datalog, and where can I do that?
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Senior Member
Joined: Jul 2006
Posts: 259
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From: SF Bay Area
06 E55 SOLD, 89 300 SE 375,000 miles
If you want you can borrow mine.
MBWorld Fanatic!
Joined: Jan 2004
Posts: 7,092
Likes: 13
From: Salt Lake City (but not Morm)
2003 E55 & 2014 GL550
Tapping a boost source during a dyno is actually very commonly done.
Not something you can do at the dyno shop, well quickly.
