My B8 S4 Revo stage 1+ dyno results

[gmadd]

2011 S4 revo stage 1+ and their transmission tune

[IMG][/IMG]

[Whitee]

Can't see a picture


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[gmadd]

[Sceanzo]

Looks about right for stage 2. Do you have an intake?

[gmadd]

Looks about right for stage 2. Do you have an intake?

ya, have an Injen intake and Borla exhaust

[Loe]

great results, looks inline with other stage 2 files. What octane?

[gmadd]

great results, looks inline with other stage 2 files. What octane?

I'm on 94 octane

[Shaun Perry]

I thought stage 1+ takes it into the 4's to the wheels

[gmadd]

I thought stage 1+ takes it into the 4's to the wheels

Ya, I was hoping for the same...but still very happy with the results.
Apparently they had a manual S4 with test pipes and put down 409 to the wheels...

[Seattle996]

I've always been a fan of the REVO setup and I'm still contemplating it. How do you like it? Any thoughts or is it similar to all the other tunes out there?

[gmadd]

I can't compare it any other tunes but I love it ! From 3000rpm this thing now pulls like a train all the way to red line ! 😀

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[mrmomo313]

I've always been a fan of the REVO setup and I'm still contemplating it. How do you like it? Any thoughts or is it similar to all the other tunes out there?

REVO cars make nice #'s on the dyno but they're all slower than EPL/GIAC/APR on the street. They have a safe and reliable tune, just not as fast as the other tuners

[ptper]

REVO cars make nice #'s on the dyno but they're all slower than EPL/GIAC/APR on the street. They have a safe and reliable tune, just not as fast as the other tuners

The way they tune is different from GIAC and APR as well. Others more knowledgeable will be able to explain the difference.

[fitzydude]

Typically Revo cars trap very well for the times that they run, that figures because they dyno so well, they're making the horsepower.

But I've haven't seen Revo cars cutting great 60 foots like a 1.6-1.7. I just don't think Revo cars are developing the low end grunt they need to get moving. I also think their partial throttle tuning is conservative as well which is great if you're looking smooth/driveable power development, but bad for total performance.

I think the perfect tune would use giac/apr's tuning method (no bleed/conservative timing) below 5500 rpm's and switch to Revo's tuning method (high timing/boost bleed) above 5500 rpm's. Resulting in the ultimate tune combining the best of both tuning methods.

Having tried Revo I think it's a great tune for roll racing with an exceptional price.. I paid like 850 for the 1+ software and installed my own pulley. But I was looking for better performance at the track so I decided to move on.

[mrmomo313]

The way they tune is different from GIAC and APR as well. Others more knowledgeable will be able to explain the difference.

In good conditions you'll see giac cars hitting ~2600 hPA and apr around 2300 without bypass.

Specified is around 2100 hPA for revo, which depending on ambient pressure is around 16psi boost. The specified pressure in their tune is setup for average conditions. The guys who take their revo cars to the track at lower altitude/great conditions end up bypassing boost because of that

[Thurston]

Those numbers look strong. Do dynopacks read higher than mustangs?

[bhvrdr]

Those numbers look strong. Do dynopacks read higher than mustangs?

Dynapaks are hub dynos and tend to read pretty high. You bolt the hubs directly to the machine (remove the wheels). Dynojets and Mustangs can read higher or lower than each other. Dyno Dynamics tend to read god awful low.

Mike

[Thurston]

Dynapaks are hub dynos and tent to read pretty high. You bolt the hubs directly to the machine (remove the wheels). Dynojets and Mustangs can read higher or lower than each other. Dyno Dynamics tend to read god awful low.

Mike

Thanks, i always enjoy ur contributions.

[xpoweruk]

Dynapaks are hub dynos and tent to read pretty high. You bolt the hubs directly to the machine (remove the wheels). Dynojets and Mustangs can read higher or lower than each other. Dyno Dynamics tend to read god awful low.

Mike

My local Dyno is Dyno Dynamics & is said to read low/accurately ..... so I took my reo stage 1+ to them

[jran76]

In good conditions you'll see giac cars hitting ~2600 hPA and apr around 2300 without bypass.

Specified is around 2100 hPA for revo, which depending on ambient pressure is around 16psi boost. The specified pressure in their tune is setup for average conditions. The guys who take their revo cars to the track at lower altitude/great conditions end up bypassing boost because of that

^^^This^^^


The rest of this thread? Take it for what it is. A single dyno won't tell you a whole lot other than maybe to confirm that something isn't seriously wrong. And I mean that as no offense to anyone. I've dynoed a bunch of S4's on the same dyno (I think 8-9 different cars now), and as cool as it is, it still doesn't mean a whole lot on it's own; although we at least have a couple baseline dynos. It's another data point just like a set of logs or drag strip times. If you want to really see how your car is running, run it at the drag strip and log it. That will tell you way more than a dyno ever will. Better yet, do all three, and you'll really understand what your car is doing....

[bhvrdr]

My local Dyno is Dyno Dynamics & is said to read low/accurately ..... so I took my reo stage 1+ to them

Right on. It looks like that operator did a parasitic loss test on that run...you can do them on some dynojets as well (the used to do this at champion racing on my A4). This is where they let the car spin the machine down. It feels like it takes forever. The car stays spinning down on the machine for probably a full minute or two. They calculate back to chp then. Check your wheel hp numbers from the tuner though and you'll see they are lower than most other dynos. The MAHA dyno is notorious for this. It'll spit out, say, a 240whp measurement and then on the calculations table will show 250hp in drivetrain loss and then say you made 490chp. It is what it is. All dynos are different like Jran is saying above. They're data points.

Mike