Dyno Numbers - Disappointed

[theindianaustin]

So I finally got my car tuned and dynoed and I dont know I feel about it. Numbers def seem lower than what I've seen/heard.

GT350 IM
Stock TB
Roush Intake
Full Corsa Exhaust (Catback and Headers)
Auto

tuned locally made 432/370 on the dynojet.


Is this about normal or low for the mods? Anyone else with the same mods? Is it worth swapping to a PMAS?

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[JeffreyDJ]

I having my Dyno'd on Monday at Dallas Mustang with:

1. Ford Performance Pack 2 with GT350 TB and CAI
2. Ford Performance Touring Exhaust
3. Manual / 3.55

My tune likely won't be as aggressive as yours. I'll come back here and post my numbers. I really have no clue what to expect myself, and was hoping for over 400. :shrug:

 

[Zelek]

Is that on 93 octane? Torque seems a little on the low side.

 

[nastang87xx]

Look okay to me. What does the curve look like? Average horsepower trumps peak all day every day.

 

[ahl395]

Hard to tell anything without a datalog. Did you log the dyno pulls?

Also, could just be a low reading dyno. All dynos read differently. Temperature, tire pressure and many other factors can affect readings. We all do it, but dyno number chasing is semi-pointless. The same car can give wildly different readings on different dynos or even the same dyno on different days/conditions.


[ame]

 

[BmacIL]

If you dyno'd the car in 4th gear it'll always read lower than you might be used to seeing. There's no 1:1 gear in the 6R80.

 

[aspensilver]

1) Curve of powerband
2) This is why people dyno before and after, the dyno is a measurement device that is not absolute, reference points are needed.

 

[BmacIL]

1) Curve of powerband
2) This is why people dyno before and after, the dyno is a measurement device that is not absolute, reference points are needed.

This.

Also your peak numbers sound right for 4th gear in the auto.

 

[Grim12]

Looks about right. I'm running the GT350 IM with 1 7/8ths header, full catless exhaust, GT350 Intake, and I'm right around 450whp. At least according to the dyno.

 

[AlmostFamous]

Looks about right. I'm running the GT350 IM with 1 7/8ths header, full catless exhaust, GT350 Intake, and I'm right around 450whp. At least according to the dyno.

How much horsepower do you think you'll gain if you went to a E85 tune?

 

[Freedom]

This.

Also your peak numbers sound right for 4th gear in the auto.

like he said, 4th gearing is 1.14. Also, the gt350 TB has legitimate gains if tuned properly.

 

[bunk22]

So I finally got my car tuned and dynoed and I dont know I feel about it. Numbers def seem lower than what I've seen/heard.

GT350 IM
Stock TB
Roush Intake
Full Corsa Exhaust (Catback and Headers)
Auto

tuned locally made 432/370 on the dynojet.


Is this about normal or low for the mods? Anyone else with the same mods? Is it worth swapping to a PMAS?

Very similar to my car, pre E85 tune. I have same mods though exhaust brand is different. I made 430rwhp/375rwtq SAE prior to adding the Circle D tq converter...it went up slightly after that to 435/380 and then topped off at 454/400 SAE with the E85 tune. So I would say we made very similar numbers with same mods.

As far as the A6, the best mod I did was the Circle D tq converter. It isn't the only aftermarket tq converter on the market of course but seems to be popular. My stock one failed so I had to replace it, so went aftermarket. It felt like the car lost 200lbs and the acceleration is night and day from stock.

 

[theindianaustin]

Numbers seem about right for an auto if you are using 93 tune.

Is that on 93 octane? Torque seems a little on the low side.

This was with e85 in the tank. Which is why I was disappointed.

 

[WildHorse]

I made 440whp on a 91 tune, stock intake (mods in sig). Dyno's for me are a tool, not a definitive HP indicator. That's what the 1/4 mile is for.

 

[bunk22]

This was with e85 in the tank. Which is why I was disappointed.

What was the correction factor? Dyno’s can obviously vary so I wouldnt be too worried about it. If it runs well, strong in the 1/4 mile, thats what counts.

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