Turbo Dynamics Canada Dyno results

[Yamadog]

The ongoing discussion on which dyno says the truth, are we still on that subject ?
If I read many of the guys here only the low dyno numbers are the truth ? LOL
That is just wrong. All dynos that can repeat runs within half a HP are great tools.

Again the only important thing is % of gain, and not only that but average HP through the run.


Dyno rooms are not all created equal. Not everyone uses the same correction factors, the same airflow in front of the sled, the same quality of air in the dyno room (contamination)
I won't point out names of shops but I've been to engine dynos where the quality of the air was a large factors. Both these dynos read on the low side. The dyno room certainly accounted for at least 5HP loss in my opinion. Location of dyno weather station or stack, makes a difference. Making sure the air inlet temps are the same as what the dyno reads.

For example, my stack is close to the air intake on my sled to get a more accurate temp reading. Not close enough to make the baro sensor read off of course.
Also the quality of the exhaust tube venting outside air makes a difference too. You would be surprised how much a dyno exhaust vent system can affect HP. That's why we made a mandrel bent 3.5" exhaust that expands to 4" right to the outside of the room for maximum evacuation of the exhaust stream with the least amount of backpressure. Dyno room exhaust contimation I've seen way too often to the point it could make you sick at times.

And lets not forgot boost leaks and variation from sled to sled and other testing conditions. My own sled had a small boost leak straight from the factory. Had we tested straight from the crate I am positive we'd have gotten 100 track HP or less. Newer motor, not full broken in + 0.8 psi loss in intake pressure (9% boost loss).

I understand you point I am not arguing the fact of gain. There is a ton of guys out there that believe are being misled by flawed math into thinking a stock winder is a 212 hp sled and it is not! that is all I am saying.

I am not trying to argue any other points or lessen the progress you are making just trying to set 1 part of the record straight! the gains you are seeing with the aftermarket can is well within line even with what we have seen from the beginning with the MPI quiet vs race can. I love the fact you guys are getting a jump on this thing and making so many large gains for less than half what us guinea pigs had to do 4 yrs ago with the Viper.

Again I was not intentionally directing anything towards you guys and even have some of your stuff on my sleds. Hugs And Kisses

 

[MrSled]

I understand you point I am not arguing the fact of gain. There is a ton of guys out there that believe are being misled by flawed math into thinking a stock winder is a 212 hp sled and it is not! that is all I am saying.

I am not trying to argue any other points or lessen the progress you are making just trying to set 1 part of the record straight! the gains you are seeing with the aftermarket can is well within line even with what we have seen from the beginning with the MPI quiet vs race can. I love the fact you guys are getting a jump on this thing and making so many large gains for less than half what us guinea pigs had to do 4 yrs ago with the Viper.

Again I was not intentionally directing anything towards you guys and even have some of your stuff on my sleds. Hugs And Kisses

Steve cant help himself, his excitement gets in the way of his typing on the key board. LOL
Right buddy??

 

[cannondale27]

Another thing that really cant be tested short of putting a asphalt track on and running it on the rollers is the suspension and its effect on hp to the ground. So clutching,suspension,tracks heck even skis all matter. That said a Dyno is the best tool out there for getting it right comfortably and hopefully a bit more safely.

 

[Turbo Dynamics]

?????????????? where do they show that? they have a track dyno then they use a calculator that has only 2 buttons 1 is(X) and the other is (2) that is as scientific as scientology ( sorry Tom Cruise). If that math is correct then my 15 with a stock motor at 10.5 lbs of boost is 289.72 crank hp. 289.72 -135 stock= 154.72 gain / 10.5 lbs of boost = 14.74 hp per lb of boost.

So my 14 is 20 lbs x 14.74 per lb = 294.80 + 135 =429.8 HP Good golly I better stock up on DEPENDS!!!!!!!! NOT!

.

Ok that is just wrong hp gains at high boost are not linear. Using HP per lbs math is way too simple.

When we came on the market of the 1100 turbo cats, we claimed 242HP from a local superflow 902 dyno that was known to read low.
We posted this on HCS forums and we were told that we had to thinker with the dyno to get high numbers like this. We were told go to Dynotech and we will believe you as in the East, it is the reference for sled tuning. We made 267HP there on pump gas. We blew our 242HP away. Since then we use Dynotech to measure our HP. I've been back and forth from my track dyno to Dynotech and the conversion is roughly 2.0.

If I brought my sled to Hurricane's dyno the conversion isn't 2.0 it's lower as his dyno reads pretty low from what I gather on his results.

This is why we posted the baseline. AS long as the baseline is there, you can see the gains.

Now here's where many of you go wrong. You read peak numbers, the don't mean too much, especially on a track dyno. Clutching can cause peaks to be worse and make it read higher than it should.

For example the stock tune, has a pretty strong peak, but falls off in HP through the run. While the Ecotrail and muffler run maintains HP through the run.
So not only do we have a a 23 peak Track HP gain/46 peak engine HP (or whatever conversion you believe in)/21.6% peak HP gain in power from just a few psi and a muffler.
But that is just the peak. We gained 25 track HP at 90 MPH and 30 track HP at 100mph vs stock.
Gains climb as the run goes through because that's when the clutches stabilize and show the most accurate track HP.

The true gain is much greater than you guys give it credit for. The average gain through the powerband is 26 track HP not 23... and the average gain in power is 25%.

The % of gain is absolutely not constestable. Use that to calculate what you believe is the real baseline HP and multiply by 1.25 to get the average HP gain at the track (real gain) through the run
As for what the real final crank HP is, that will be debated forever.

 

[Turbo Dynamics]

Another thing that really cant be tested short of putting a asphalt track on and running it on the rollers is the suspension and its effect on hp to the ground. So clutching,suspension,tracks heck even skis all matter. That said a Dyno is the best tool out there for getting it right comfortably and hopefully a bit more safely.

That's a very good point. I tried to argue with a customer today that wanted to put his sled on the dyno that we should put his sled on the ground and measure acceleration with a TD GPS. The guy wants to race his sled what better way to measure performance that putting it on the ground and making an actual run. Can't get better data...

Btw we plan to run this yamaha with the TD GPS performance meter and get some acceleration and MPH data. Can't wait !!

 

[kviper]

On a side note Ben I bought one of your GPS performance meeter's last spring and ran all my vehicles as well as many friends vehicles with it. It is an amazing tool and seems to be very consistent. Was very fun with my SC Mustang on drag radials seeing the change from tire heating in 60' et's. I could feel the differences and see it in the et's. Hope it works as well on the sled!

 

[Turbo Dynamics]

On a side note Ben I bought one of your GPS performance meeter's last spring and ran all my vehicles as well as many friends vehicles with it. It is an amazing tool and seems to be very consistent. Was very fun with my SC Mustang on drag radials seeing the change from tire heating in 60' et's. I could feel the differences and see it in the et's. Hope it works as well on the sled!

Thanks! . I also use it on everything i tune from side by side to boats, sleds and cars.

On automatic vehicules that are super consistent in et, it will repeat to a few hundreds of a second. Same goes for consistent race sleds like our improve stock turbo sleds. With the help of the tool we found a full tenth on an already winning race sled. Once my competitors in the class starting using it too, the competition got a little stiffer pretty quick. Awesome tuning tool for sure. I prefer this to any dyno.

 

[kviper]

 

[cannondale27]

That's a very good point. I tried to argue with a customer today that wanted to put his sled on the dyno that we should put his sled on the ground and measure acceleration with a TD GPS. The guy wants to race his sled what better way to measure performance that putting it on the ground and making an actual run. Can't get better data...

Btw we plan to run this yamaha with the TD GPS performance meter and get some acceleration and MPH data. Can't wait !!

That would be handy! Will look into it. Thanks

 

[actionjack]

TD est en Quebec non?

Isn't Quebec pretty strict on aftermarket exhaust? Whats the experience been with the cans on the Cat 9000s at places like Checkpoint Charlie in St Foy? No worries about aftermarket exhaust tickets?

 

[Turbo Dynamics]

TD est en Quebec non?

Isn't Quebec pretty strict on aftermarket exhaust? Whats the experience been with the cans on the Cat 9000s at places like Checkpoint Charlie in St Foy? No worries about aftermarket exhaust tickets?

It's strict no doubt. Because of this, we do many many stock modified muffler which please both the patrol and the customer. Extremely quiet and more than double the factory flow. Everybody is happy.
But of course by no means a stock modified muffler make as much power as any other straight through style muffler. But it's a great compromise.

 

[DMCTurbo]

It's strict no doubt. Because of this, we do many many stock modified muffler which please both the patrol and the customer. Extremely quiet and more than double the factory flow. Everybody is happy.
But of course by no means a stock modified muffler make as much power as any other straight through style muffler. But it's a great compromise.

Do you offer complete kits with clutching, flash and exhaust?

 

[Turbo Dynamics]

Do you offer complete kits with clutching, flash and exhaust?

Yes of course we are going to test the machine on snow very shortly, maybe this weekend if weather keeps up. All we need is some snow for confirmation.

 

[DMCTurbo]

I'm new to the turbo world. Does the flash require you to send in the ECU? If so what is the turnaround time?

 

[Turbo Dynamics]

I'm new to the turbo world. Does the flash require you to send in the ECU? If so what is the turnaround time?

We will see once we get there. I would say should be 48 hours depending on how busy we get by then.
We will 100% concentrate on ecu reflash for a week after the release to get things out the door quick.
I will be asking customers to ship ecus 2 weeks before the release in order to get the quickest turn around.