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Old 10-12-2015, 06:00 PM   #1
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My dyno run at Brenspeed...

Went to Brenspeed, which is about 30 miles from my house here in Fort Wayne and had them put my girl up on their dyno for a baseline before I do any mods. Car is a 2013 GT with an automatic and running 83 octane. Absolutely no mods to it except the Motegi rims. It came back with 317 to the wheels and around 390-400 at the trans. The op said if I switched to premium fuel I would probably be at the Ford-stated 420. I filled up with 97 octane and it seemed to run much better. Apparently there is a governor on these things I didn't know about that limits them to 145 mph...

Edit: Not certain why the image rotates 90° from the original. Here's a link to it...

http://i.imgur.com/JFggJLD.jpg?1
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Old 10-12-2015, 06:56 PM   #2
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I think that is the lowest dyno coyote I have ever seen, is that a mustang dyno? 83 octane??
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Old 10-12-2015, 07:00 PM   #3
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Originally Posted by kdryan View Post
Went to Brenspeed, which is about 30 miles from my house here in Fort Wayne and had them put my girl up on their dyno for a baseline before I do any mods. Car is a 2013 GT with an automatic and running 83 octane. Absolutely no mods to it except the Motegi rims. It came back with 317 to the wheels and around 390-400 at the trans. The op said if I switched to premium fuel I would probably be at the Ford-stated 420. I filled up with 97 octane and it seemed to run much better. Apparently there is a governor on these things I didn't know about that limits them to 145 mph...

Edit: Not certain why the image rotates 90° from the original. Here's a link to it...

http://i.imgur.com/JFggJLD.jpg?1
What the hell are you talking about man. None of this makes sense?

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Old 10-12-2015, 07:08 PM   #4
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Damn thats so low for a 5.0
Never seen one run so low even though you have 83 gas
Shouldnt drop 60+ hp from a baseline run that everybody usually runs thats crazy they gave you a GT 4.6 engine not 5.0 hahahaha


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Old 10-12-2015, 07:11 PM   #5
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Car is a 2013 GT with an automatic and running 83 octane.
I have to say... what on earth are you thinking putting 83 in your coyote?? Even the manual says that it does not recommend dropping under 87, and that best performance will come from premium.
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Old 10-12-2015, 07:12 PM   #6
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I have to say... what on earth are you thinking putting 83 in your coyote?? Even the manual says that it does not recommend dropping under 87, and that best performance will come from premium.

Lol


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Old 10-12-2015, 07:23 PM   #7
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😕


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Old 10-12-2015, 07:28 PM   #8
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Gotta be a troll post

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Old 10-12-2015, 07:34 PM   #9
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Gotta be a troll post

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Well, no actually... I did make a misprint. 87 octane, not 83.

Funny thing. You guys are going ballistic over a low number and running 87 octane. Other places I have questioned about this are saying the opposite.

To be clear, this is bone stock with an automatic. He did say this was at the wheels and not the engine where it's factory rated. I get the idea Brenspeed knows their ****...
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Old 10-12-2015, 07:35 PM   #10
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Well, no actually...

They make 420 at the crank stock bud.
Something was off on the dyno calibration


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Old 10-12-2015, 07:44 PM   #11
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Well, no actually... I did make a misprint. 87 octane, not 83.

Funny thing. You guys are going ballistic over a low number and running 87 octane. Other places I have questioned about this are saying the opposite.

To be clear, this is bone stock with an automatic. He did say this was at the wheels and not the engine where it's factory rated. I get the idea Brenspeed knows their ****...
A stock 5.0 should be making 360 to 370 rwhp. Not 317 rwhp. Either the dyno machine was broken or your 5.0 is majorly jacked up.

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Old 10-12-2015, 07:55 PM   #12
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Interesting...
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Old 10-12-2015, 08:04 PM   #13
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Nothing wrong with the car and looking around the web I see numbers consistent with what you're saying. I guessing Brenspeed is full of **** then. I'll give them a call tomorrow and see what they say.
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Old 10-12-2015, 08:09 PM   #14
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Nothing wrong with the car and looking around the web I see numbers consistent with what you're saying. I guessing Brenspeed is full of **** then. I'll give them a call tomorrow and see what they say.

It's not that they are full of 💩, it's more along the lines that the dyno was not calibrated right.


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Old 10-12-2015, 09:54 PM   #15
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Brenspeed has been known to make low output stock numbers and correct numbers once "tuned by Brenspeed".

How else could you explain a bunch of 2v/3v 4.6's running around here claiming they gained 60-80 whp with a cai, exhaust and tune.
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Old 10-12-2015, 10:24 PM   #16
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Originally Posted by kdryan View Post
Went to Brenspeed, which is about 30 miles from my house here in Fort Wayne and had them put my girl up on their dyno for a baseline before I do any mods. Car is a 2013 GT with an automatic and running 83 octane. Absolutely no mods to it except the Motegi rims. It came back with 317 to the wheels and around 390-400 at the trans. The op said if I switched to premium fuel I would probably be at the Ford-stated 420. I filled up with 97 octane and it seemed to run much better. Apparently there is a governor on these things I didn't know about that limits them to 145 mph...

Edit: Not certain why the image rotates 90° from the original. Here's a link to it...

http://i.imgur.com/JFggJLD.jpg?1
87 octane?
Rims are considered mods?
390-400 at the trans?

I have zero clue what you are talking about lol.

And 87 octane on a 11.0:1 compression ratio engine you are asking for it to ping and make no power. 91 is the absolute minimum i would run. The 420 to the crank it is rated at is using 93 octane. With 87 octane the knock sensors are pulling so much timing to not ping like crazy, that's why you made no power.

A 2014 GT bone stock on 93 octane should be making around 360ish to the wheels. So you are about 50 horsepower off.
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Old 10-12-2015, 10:53 PM   #17
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87 octane?
Rims are considered mods?
390-400 at the trans?

I have zero clue what you are talking about lol.

And 87 octane on a 11.0:1 compression ratio engine you are asking for it to ping and make no power. 91 is the absolute minimum i would run. The 420 to the crank it is rated at is using 93 octane. With 87 octane the knock sensors are pulling so much timing to not ping like crazy, that's why you made no power.

A 2014 GT bone stock on 93 octane should be making around 360ish to the wheels. So you are about 50 horsepower off.
Ford themselves claimed a 10 hp difference on the 5.0 between 87 and 91 octane.

That is also the 2011. The newer ones are similar.

Horsepower

412 hp @ 6,500 rpm, 91 octane
402 hp @ 6,500 rpm, 87 octane
Torque
390 lb-ft @ 4,250 rpm, 91 octane
377 lb-ft @ 4,250 rpm, 87 octane

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Old 10-12-2015, 11:10 PM   #18
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Well let's not bash OP or any tuner for that matter. Dyno is just a tool, playing number game. All depends on how it was calibrated on said day. This one dynojet read 274HP stock for my M6 3.7, 6 months down the road I took my A6 Lund tuned coyote (bone stock) and it read 308 rwHP. My friend with a bone stock M6 track pack did a few back to back pulls right after me, his car read 331. We were both on 91. Let's not get too hung up on numbers, OP take your car to track, do a few pulls on stock then brendspeed tune. Let us know what you ran


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Old 10-12-2015, 11:28 PM   #19
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Originally Posted by Soccerluvr4 View Post
87 octane?
Rims are considered mods?
390-400 at the trans?

I have zero clue what you are talking about lol.

And 87 octane on a 11.0:1 compression ratio engine you are asking for it to ping and make no power. 91 is the absolute minimum i would run. The 420 to the crank it is rated at is using 93 octane. With 87 octane the knock sensors are pulling so much timing to not ping like crazy, that's why you made no power.

A 2014 GT bone stock on 93 octane should be making around 360ish to the wheels. So you are about 50 horsepower off.
I thought the same thing ,390 to the trans. I'm like what are you talking about? I have no clue.

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Old 10-12-2015, 11:35 PM   #20
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My stock M6 2014 dynoed at 378rwhp on 93 octane. Literally the only thing I had on the car was Roush axle backs and tire shine lol. So seems funky to me


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Old 10-13-2015, 01:50 AM   #21
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Well, whatever the case I think there's enough evidence here to justify a second dyno somewhere else. I will gladly plead ignorance on the matter. Let's get a second one scheduled and see what someone else says.
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Old 10-13-2015, 01:54 AM   #22
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Pretty convenient way to make their tune look amazing lol. Honestly I think they may have seen your ignorance as an opportunity.
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Old 10-13-2015, 02:41 AM   #23
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Pretty convenient way to make their tune look amazing lol. Honestly I think they may have seen your ignorance as an opportunity.

Hahaha tough love


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Old 10-13-2015, 03:04 AM   #24
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I meant no harm.
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Old 10-13-2015, 03:03 PM   #25
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I should have known there would be an issue when the salesman was the guy running the dyno.
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Old 10-13-2015, 05:11 PM   #26
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I should have known there would be an issue when the salesman was the guy running the dyno.
I know you said you made a typo on the 83 vs 87 octane, what about the 97 octane you mentioned, was that a typo as well?
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Old 10-13-2015, 05:22 PM   #27
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I should have known there would be an issue when the salesman was the guy running the dyno.
My thing didn't post. Was he trying to sell you a tune as well?
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Old 10-13-2015, 06:02 PM   #28
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I know you said you made a typo on the 83 vs 87 octane, what about the 97 octane you mentioned, was that a typo as well?
Yes. I transposed them...

As for selling me something, yes but I made it very clear going in that I wanted a baseline to measure future results against so he drew up a couple of packages, pushed the tune a bit and let it go.
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Old 10-13-2015, 06:18 PM   #29
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I am curious. If there is a governor, can the results truly be accurate? How can you tell what the power of the car is if that power is limited?
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Old 10-13-2015, 06:32 PM   #30
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I am curious. If there is a governor, can the results truly be accurate? How can you tell what the power of the car is if that power is limited?
The power isn't limited the rpms or speed in 6th gear are. Dyno runs aren't done in 6th so you don't need to worry about that.
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Old 10-13-2015, 08:51 PM   #31
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Well, whatever the case I think there's enough evidence here to justify a second dyno somewhere else. I will gladly plead ignorance on the matter. Let's get a second one scheduled and see what someone else says.
Keep in mind that when you do get your dyno somewhere else, for a baseline dyno, that you should go back to the same dyno for subsequent comparison runs.

And as many members have already pointed out, the results of dyno testing should not be used to compare one car against another. They are best suited for evaluating the effects of incremental changes on the same vehicle. As you had intended to do.

Looking forward to your next dyno results.
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Old 10-13-2015, 08:54 PM   #32
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The power isn't limited the rpms or speed in 6th gear are. Dyno runs aren't done in 6th so you don't need to worry about that.

Depends on transmission and rear gear.
For instance a 100% stock mt-82 coyote, with a 3.31 gear will hit the speed limiter in 5th b4 redline.


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Old 10-13-2015, 09:03 PM   #33
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Depends on transmission and rear gear.
For instance a 100% stock mt-82 coyote, with a 3.31 gear will hit the speed limiter in 5th b4 redline.


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Doesn't it depend on what the computer is using as an input for speed?
In other words are you saying that a car with higher ratio rear end gears, and a speedometer corrected for it, is limited to a lower speed?
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Old 10-13-2015, 09:04 PM   #34
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Depends on transmission and rear gear.
For instance a 100% stock mt-82 coyote, with a 3.31 gear will hit the speed limiter in 5th b4 redline.


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Yeah I figured I might be lol. Dyno pulls in 4th or 5th?
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Old 10-13-2015, 09:20 PM   #35
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Doesn't it depend on what the computer is using as an input for speed?

In other words are you saying that a car with higher ratio rear end gears, and a speedometer corrected for it, is limited to a lower speed?

No they all are set at the same speed limit stock. A car with a higher gear is going to hit a higher speed at a lower RPM. So that's what a mt-82 car with 3.31 on a stock tune hits the speed limiter b4 it hits the redline.

If that's what your asking.



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