Perceived power increase with tune

[Mikepol2]

That's very interesting. I've long thought my car needed higher spring rates. That makes perfect sense.

But what's weird is that the base M1 has softer springs in the rear than a PP1 car. That's very weird to me.

Thanks.

weight transfer for launches? Maybe ford assumed someone not buying a HP must want the Mach for the strip/street?

just a guess

Our S550's all understeer like crazy, so I get wanting to put stiffer springs up front if they're marketing the Mach as a track version, but yeah, softer in the back? I don't get it either. But I'm definitely no suspension expert and understanding the combination of the total setup with sway bars, bushings, etc is way above my pay grade.

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[ShadesOfBloo]

I just traded into a used 2022 Mach 1 with the Tremec.

Well, then you need to change your avatar, don't you?

(jk )

 

[KingKona]

Our S550's all understeer like crazy, so I get wanting to put stiffer springs up front if they're marketing the Mach as a track version, but yeah, softer in the back? I don't get it either. But I'm definitely no suspension expert and understanding the combination of the total setup with sway bars, bushings, etc is way above my pay grade.

I have read, and I am no suspension expert either, that with today's uber-stiff unit-body cars, you can increase/decrease grip at one end, by making changes to suspension at the other end of the car.

I have definitely read that to cure understeer, you increase roll stiffness at the rear of the car.

Now....I don't see how that would mean that using softer springs in the rear of a M1 would reduce understeer. Seems to me it would increase it......

Whatever......I'm out of my depth.

 

[SheepDog]

I find it interesting that the HP MACH has a solid rear sway bar, but the Standard MACH has a hollow bar.

 

[fast306stang]

But what's weird is that the base M1 has softer springs in the rear than a PP1 car. That's very weird to me.

Magneride to magneride?

 

[fast306stang]

Well, then you need to change your avatar, don't you?

(jk )

Yes, yes I do! But I've only got one pic and it's been raining like everyday!

 

[KingKona]

Magneride to magneride?

Not clear. The last lingering piece of the puzzle.

 

[WD Pro]

Magneride to magneride?

Good point.

(From memory) I think PP1 + MR has softer rear springs than a PP1

WD

 

[ShadesOfBloo]

Magneride to magneride?

Yes. If you compare a PP1 with Magneride to one without it, i think they have the same spring rates, but the Magneride car will sit about 1/4" lower.

 

[KingKona]

Good point.

(From memory) I think PP1 + MR has softer rear springs than a PP1

WD

Son of a bi......

 

[fast306stang]

Well, then you need to change your avatar, don't you?

(jk )

This one will have to work until I get a better outside pic. Couldn't crop the one I have as well as I wanted to!

Obligatory pic of car in question...

 

[fast306stang]

Dunno if I wasn't fully awake or if the weather was different this morning or what. But I hammered it once on the way home and damn it feels wayyyy quicker than the PP2. I'm gonna scare the wife in it and see what her opinion is lol

 

[fast306stang]

I don't recognize my posts with the new avatar!

 

[shogun32]

I can tell the Mach with it's bone-stock suspension is definitely a better handling car. I was very suprised by that bc on paper, they look equal.

the M1 has the better Magride dampers from the late year GT350R and GT500. How the damping curves differ between the M1 and R, nobody knows. I would hope they are essentially identical or the M1 is "better".

I've tuned all my vehicles (Mustangs, F150, Audi, VW) on plain ol' 93 or in the case of the Ecoboost, E35. When dealing with Coyote on 93 the tune doesn't add "power" so much as let the engine spin up faster and feel more meaty in the middle and most importantly, not nose-dive as you get into the upper reaches of the RPM band, like an asthmatic gagging for breath. Obviously I need back to back dyno-sheets to substantiate that butt-0-meter sensation into hard numbers. But it's definitely discernable, even if the actual max torque or HP isn't changed an iota.

Ford's fueling maps are garbage, the one for the Ecoboost dramatically so. (yes, I know, not germane to this thread)

If you suspect your car still has a tune, run whatever fuel you want as long as it's 91+. If you put the cheap stuff in, just don't go wailing on the throttle again and again and again. That said, unless the tune was written by a blithering idiot, the ECU has all the tools at it's disposal to mitigate the negative effects of running 87 in sensible driving and modest aggression.

 

[ShadesOfBloo]

...I hammered it once on the way home and damn it feels wayyyy quicker than the PP2.

I'd be surprised if it didn't. It's rated for more power and I'm pretty sure that's because of the intake manifold and Ford software.
And I think most of us agree the gear spacing is a LOT better with the Tremec transmission. The Getrag has a big, dumb gap between 3rd and 4th. The Tremec fixes that, and every gear is shorter except 6th.

EDIT: 4th gear in your car should pull like if I had my car in 4th, with a 4.5 rear end.

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