Mustang Dark Horse S650 N/A made 537whp on dyno with bolt-ons & tune

[DarkHorseTT]

Hey, guys

We made good numbers on dyno
1. Steeda CAI
2. LTH
3. Cats and resonator delete
4. C85 fuel
5. Carbon driveshaft
6. Forged rear wheels r18
7. MT street R 18/45/305
8. 4400lbs
9. Shoemaker tune
10. 7th gear

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[John S]

I'm confused by the intersection of Torque and Horsepower on the printout, typically the intersection point is 5252 RPM because of the conventional equation and units used in determining HP from a torque curve?

 

[DarkHorseTT]

I'm confused by the intersection of Torque and Horsepower on the printout, typically the intersection point is 5252 RPM because of the conventional equation and units used in determining HP from a torque curve?

Sir, as per Steeda dyno with same config, I see that the only difference is that we raised rpm till speed limit and Steeda I think made without speed limit, so my torque has to be more if there wouldn’t be speed limit I think

Actually, I am not big specialist in this, but car rides 7.9 with 4400lbs

 

[robvas]

I'm confused by the intersection of Torque and Horsepower on the printout, typically the intersection point is 5252 RPM because of the conventional equation and units used in determining HP from a torque curve?

The first clue is there's over 600 torque showing, which isn't possible.

At first I thought they were scaled differently but that wasn't quite right. Look at the axis labels, torque is being reported in nm not ft-lb

So if you do the math, 600 * .73, you get 438 ft lb, which would intersect the HP line at about 5250rpm

Shoemaker did an e85 FBO car and it made 405 torque

https://www.mustang7g.com/forums/th...e-s650-dyno-numbers-w-e85-custom-tune.169697/

 

[DarkHorseTT]

The first clue is there's over 600 torque showing, which isn't possible.

At first I thought they were scaled differently but that wasn't quite right. Look at the axis labels, torque is being reported in nm not ft-lb

So if you do the math, 600 * .73, you get 438 ft lb, which would intersect the HP line at about 5250rpm

Shoemaker did an e85 FBO car and it made 405 torque

https://www.mustang7g.com/forums/th...e-s650-dyno-numbers-w-e85-custom-tune.169697/

Torque is in NM it is 443 lb ft

I don’t think You should look for cheats here
All done properly with max rotating weight reduction

 

[DarkHorseTT]

Torque is in NM it is 443 lb ft

I don’t think You should look for cheats here
All done properly with max rotating weight reduction

Also, Rob did dyno on 5th gear… but me and Steeda on 7th , where 1:1 ratio

 

[Junkyard Dog]

The first clue is there's over 600 torque showing, which isn't possible.

At first I thought they were scaled differently but that wasn't quite right. Look at the axis labels, torque is being reported in nm not ft-lb

So if you do the math, 600 * .73, you get 438 ft lb, which would intersect the HP line at about 5250rpm

Shoemaker did an e85 FBO car and it made 405 torque

https://www.mustang7g.com/forums/th...e-s650-dyno-numbers-w-e85-custom-tune.169697/

If lb ft, then it always crosses at 5250. Math.

I don't know anything about the math using Newton Meters, so I had to look it up. 9,549 rpm.

 

[Junkyard Dog]

Torque is in NM it is 443 lb ft

I don’t think You should look for cheats here
All done properly with max rotating weight reduction

We don't think that there is any cheating. Just something odd with the dyno setting and/or conversions from metric to imperial units.

 

[Q6543]

I really REALLY like that rear tire setup

 

[JAG75]

Torque is in NM it is 443 lb ft

I don’t think You should look for cheats here
All done properly with max rotating weight reduction

 

[JAG75]

That’s impressive numbers, are you running the stock intake manifold?

 

[ZXMustang]

Congrats. Let us know what it runs at the drag strip. I'd love to see the trap speed. Dont forget to log the run for Rob. Thats invaluable data right there.

 

[DarkHorseTT]

That’s impressive numbers, are you running the stock intake manifold?

Yes, Sir, we did only that was in the list
Also, Shoemaker did first tune and we tried it on Dyno, on street, sent him some longs and then he made second one - more aggressive and it showed better results. I think second one had stable 32* degrees, as first one was unstable and degree timing was “jumping” (fuel was always the same)

 

[DarkHorseTT]

Congrats. Let us know what it runs at the drag strip. I'd love to see the trap speed. Dont forget to log the run for Rob. Thats invaluable data right there.

Sure, Sir, I will try my best, but after winter. We have snow in Moscow now

The main problem of car is - that we did 60kg (132lbs) of noise reduction, so it has with me 2000kg (4400lbs), I tried to make 1/4 on street in cold weather (about 50F), with stock heavy wheels, but result was awful (below screen)

1. We will uninstall about 30kg of noise
reduction
2. Will make carbon ceramic brake wheels = -25kg rotating mass (55lbs)
3. Will install “skinnies” from my Mach1 18x5 = -18kg of rotating mass (40lbs) and forged rears 18x11 with MT street R -7kg rotating (16lbs)
4. Delete passenger seat and rear sits = -37kg (82lbs)

So then hope it will run small 11 on track with good traction

If it will be small 11 and will be close to 10.99, I think I will buy K-member and smth for more weight reduction … but this is only plans

 

[DarkHorseTT]

Congrats. Let us know what it runs at the drag strip. I'd love to see the trap speed. Dont forget to log the run for Rob. Thats invaluable data right there.

BTW,

I did 1 pull 0-60 with MT street R in 37F… look what I got with that huge mass and in very cold street…. Street R is the best tires type I think

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