LMS Meth Tune... No Meth?

[StealBlueSHO]

Edit*: now Nitrous and bigger turbos are different they still won’t tune you past around 450/450 without a motor build as they have pretty solid data showing these motors/drive train in stock form won’t hold up past that...

500 is the magic number with our motor/drive train in stock form.. after that it’s just a matter of time before something goes to crap. And they are not the only ones who say that...

I assume your referring to WHP/TQ with those numbers?

Yes.


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What does a stock one generally put down at the wheels?  What is generally used for a drivetrain loss % on these cars?  What is 450/450 at the motor?

General agreement is 25% loss from the fly to the wheels...

So 450 is 600 at the engine... 600 * .75 = 450.

I think stock they are around 275ish to the wheels?


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[bpd1151]

What does a stock one generally put down at the wheels?  What is generally used for a drivetrain loss % on these cars?

Drivetrain loss has ALWAYS been (consistently) 23% to 24%.

Stock dynos, from all model years from 2010 to current, have ranged in between 277 to 285awhp.

Ford quotes the (stock) power at the motor to be 365chp/bhp.

 

[Leadfoot]

That would help explain my poor fuel economy. I appreciate the safe approach but at the same time it's one of the reasons I'm hesitant to mod any further (meth, hpfp etc) on this type of canned tune. I don't want to get so crazy as to risk any engine failure. But at the same time I feel there is still quite a bit of potential left in the car with the current V11 tune without the need for those additional expensive mods. Its seems those mods are mostly a requirement because of the type of rich tuning they like to run. Plus they make some $$$ from them as well. Thanks for the feedback. Good info.

Something must be off, i'm getting 22 MPG hwy at about 85 mph with the V11 tune. I was running out of fuel with the winter blends but the summer gas is better, no more stumbling at 6K+. The wife gets 26 but I cant drive that slow or keep my foot out of it

 

[FoMoCoSHO]

What does a stock one generally put down at the wheels?  What is generally used for a drivetrain loss % on these cars?

Drivetrain loss has ALWAYS been (consistently) 23% to 24%.

Stock dynos, from all model years from 2010 to current, have ranged in between 277 to 285awhp.

Ford quotes the (stock) power at the motor to be 365chp/bhp.

This is what confuses me about drivetrain loss...

If I get on a dyno and take a baseline...

Drive off and do lets say 3 bar and a tune...

Drive back on and re-dyno, what changes that we lose more power spinning the drums?

I could understand a little more loss due to heat, but does it really stay at a fixed % or does that # actually go down as you add power?

:hmmm:

 

[StealBlueSHO]

What does a stock one generally put down at the wheels?  What is generally used for a drivetrain loss % on these cars?

Drivetrain loss has ALWAYS been (consistently) 23% to 24%.

Stock dynos, from all model years from 2010 to current, have ranged in between 277 to 285awhp.

Ford quotes the (stock) power at the motor to be 365chp/bhp.

This is what confuses me about drivetrain loss...

If I get on a dyno and take a baseline...

Drive off and do lets say 3 bar and a tune...

Drive back on and re-dyno, what changes that we lose more power spinning the drums?

I could understand a little more loss due to heat, but does it really stay at a fixed % or does that # actually go down as you add power?

:hmmm:

Only way to know that is to do a baseline wheel AND engine dyno... tune... repeat...


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