Whipple & Broken Cranks

[80FoxCoupe]

I'm fairly certain that some time around 2020 they switched back to the non-viscous damper, so I'm not sure it was for the reasons you mentioned.

Potato, potato.

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[bankyf]

Potato, potato.

Is that what we are supposed to say when we present potentially inaccurate information as factual?

 

[WD Pro]

If the pictures I have seen to help identify the various damper types are correct, my mid 20 build has an elastomer damper

WD

 

[Vert]

I thought what I've read in the past was some of the failures were due to aftermarket balancers. The numbers are small just like those breaking oil pump gears.
There's always something to worry about when you're almost doubling the HP, if it's troublesome for you, don't take the risk and stay stock.

 

[bankyf]

I thought what I've read in the past was some of the failures were due to aftermarket balancers. The numbers are small just like those breaking oil pump gears.
There's always something to worry about when you're almost doubling the HP, if it's troublesome for you, don't take the risk and stay stock.

That has been suggested, but I'm not sure there has ever been enough data to draw a conclusion. It's also been mentioned that perhaps balancers that have been removed aren't being fully seated when re-installed.

 

[80FoxCoupe]

Is that what we are supposed to say when we present potentially inaccurate information as factual?

Ford put the viscous damper on the 18 up cars for a reason. The items mentioned effect engine harmonics and would prompt a change in damper performance. Are you saying the elastomer damper that you are "fairly certain" that ford swapped back to would not address the items i mentioned? Are you assuming that for a specific harmonic profile, only one of the balancer types could provide a solution? I can say with certainty that whatever damper type came on the engine, Ford designed it for that application to meet cost, availability, reliability and performance needs.

What other insight do you have to offer besides "I'm fairly certain there was a damper change in 2020" and "I'm fairly certain they went to a forged CS for 3rd gen"?

"I'm fairly certain", is that what we are supposed to say when we are unsure about something but want to chime in?

 

[engineermike]

I bet they switched back to elastomeric due to supply chain issues. Or perhaps cost scrutiny. Most likely only half a dozen people within ford really know.

 

[80FoxCoupe]

I bet they switched back to elastomeric due to supply chain issues. Or perhaps cost scrutiny. Most likely only half a dozen people within ford really know.

I can get on board with that.

 

[Andy13186]

I believe that to be true. I'm fairly certain they went to a forged sprocket for 3rd Gen. The sprocket on my car looked identical to the Ford Performance sprocket I purchased. Ended up getting a Boundary after I saw that. The Ford performance catalog eludes to it as well in my opinion.

My 18 had a forged crank sprocket too, shop was surprised.

 

[80FoxCoupe]

My 18 had a forged crank sprocket too, shop was surprised.

How was that determined?

The improved forged material could address the broken tooth issues that have been seen. Although the failures I've seen in modded applications is cracking the length of the keyway. I compared various measurements of the FP forged, MMR and Boundary sprockets. I would post that info but fear that I may pass on inaccurate information as factual. So I'll just keep that.

The CS being so small part and playing such a big role, the line between brittle and ductility is fine. Maybe at some point there will be some metallurgic info that could help us understand which CS would fit our application best.

 

[Andy13186]

How was that determined?

The improved forged material could address the broken tooth issues that have been seen. Although the failures I've seen in modded applications is cracking the length of the keyway. I compared various measurements of the FP forged, MMR and Boundary sprockets. I would post that info but fear that I may pass on inaccurate information as factual. So I'll just keep that.

The CS being so small part and playing such a big role, the line between brittle and ductility is fine. Maybe at some point there will be some metallurgic info that could help us understand which CS would fit our application best.

Specifically this is what the shop said "Your crank sprocket is not stock. It's an early GT500 one which is weird".

Ive not had any sprocket failures and I dont know any reason why mine would be a gt500 sprocket... I think its just what was in my car when I bought it new.

 

[80FoxCoupe]

Specifically this is what the shop said "Your crank sprocket is not stock. It's an early GT500 one which is weird".

Ive not had any sprocket failures and I dont know any reason why mine would be a gt500 sprocket... I think its just what was in my car when I bought it new.

KR3Z part number?

 

[bankyf]

Ford put the viscous damper on the 18 up cars for a reason. The items mentioned effect engine harmonics and would prompt a change in damper performance. Are you saying the elastomer damper that you are "fairly certain" that ford swapped back to would not address the items i mentioned? Are you assuming that for a specific harmonic profile, only one of the balancer types could provide a solution? I can say with certainty that whatever damper type came on the engine, Ford designed it for that application to meet cost, availability, reliability and performance needs.

What other insight do you have to offer besides "I'm fairly certain there was a damper change in 2020" and "I'm fairly certain they went to a forged CS for 3rd gen"?

"I'm fairly certain", is that what we are supposed to say when we are unsure about something but want to chime in?

I'm not just fairly certain, I'm 100% sure that my 2020 car built 10/19 has an elastomer dampener. I chose my words carefully as to not present things as factual that may not be. Maybe you should try that some time. I'm 100% certain that Ford switched back. I'm "fairly certain" that it happened some time around 2020.

 

[80FoxCoupe]

I'm not just fairly certain, I'm 100% sure that my 2020 car built 10/19 has an elastomer dampener. I chose my words carefully as to not present things as factual that may not be. Maybe you should try that some time. I'm 100% certain that Ford switched back. I'm "fairly certain" that it happened some time around 2020.

That's fine, they did it for the reasons I mentioned. I'll do and say as I please, just as you will. Carry on.

 

[bankyf]

That's fine, they did it for the reasons I mentioned. I'll do and say as I please, just as you will. Carry on.

My apologies, I wasn't aware that you were privileged to internal Ford engineering information. In the past Ford has made changes in parts that logically appear to be for one reason, but in actuality are for a completely different reason. You seem to have a source for the facts that the rest of us don't. Carry on.

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