Alto (still processing @ 22:23)
OcUK Rolling Road Day 20 @ Ti Motorsport (Stoke) - Saturday 29th October 2016
- Thread starter ScoobyDoo69
- Start date
Seat Leon FR TDI (still processing @ 22:29)
Soldato
Im wondering if the shear power of the Alto broke the rollers which was why every car after mine was having trouble making power
Doesn't explain the Honda who ran before you.
It was, what it was. Every roller will be different. They're a new set up I guess and still need to learn a lot. Saying that I think they got it bang on the money with my car. Maybe a little high for what it was on the previous map. New map I have on now is so much better, reckon It could have a little more torque too.
Im wondering if the shear power of the Alto broke the rollers which was why every car after mine was having trouble making power
Rollers are accurate, heat was the issue for many cars or traction issues. Heat effects some cars more so than others.
TT-RS (still processing @ 07:42)
S3 Saloon (still processing @ 07:49)
Soldato
At Powerstation they had a massive ventilation system blowing cold air in and a huge extractor system that popped up and ran the full width of the back of the car, so they had very effective exhaust gas extraction and good airflow through the car.
TI should investigate installing a similar system.
TI should investigate installing a similar system.
For how so many complained about Powerstation they were actually the best venue I've ever used, there only weakness was a lack of food/drink available on-site. But in short Powerstation was excellent they knew their dyno incredible well, had superb cooling and excellent ventilation. My only dislike was the dyno room was small and tight making it hard to watch cars running and insanely loud.
I have to admit standing around the corner listening to my car run and it sounded bloody amazing, its got a truly un-mistakable authentic V8 note to it throughout the RPM band, my old one got very raspy at high RPM whereas the new one does not. Though that I think was due to headers so this one once headers go in might get raspy.
Had a look over my Powerstation and Ti graphs, I think Ti might have messed up the power readings on my graph:
If you look at wheel power, they are actually only 4WHP apart, yet the crank power is nearly 50BHP apart.
Something is not adding up, I also notice the fact the graph has no torque readings and I can see right at the top of the run timing is pulled as car stops making power whereas at Powerstation it kept making power no doubt helped by the fact it was absolutely FREEZING that day.
I am going to go back today and have my graph reloaded and try to get the torque figure to show on it as maybe they had a setting wrong as something does not look right.
Will also request a re-run if they cannot get torque line on it and I will run it with bonnet up so the car is not having a fit over temperatures.
Good to see the difference the differential makes though, 5th is now reduced to 156mph, compared to previous high of 170mph. It suits the car far better because now the car can hit theoretical top speed in 6th gear which is now around 185mph which the car can pull, whereas before it was over 200 and it might be quick but it would need 500+ horsepower to achieve 200mph top speed and big power is not the intention for this car as it simply does not need big power due to its lightweight, differential and SMG. It embarrasses more power cars on the road and track.
If you look at wheel power, they are actually only 4WHP apart, yet the crank power is nearly 50BHP apart.
Something is not adding up, I also notice the fact the graph has no torque readings and I can see right at the top of the run timing is pulled as car stops making power whereas at Powerstation it kept making power no doubt helped by the fact it was absolutely FREEZING that day.
I am going to go back today and have my graph reloaded and try to get the torque figure to show on it as maybe they had a setting wrong as something does not look right.
Will also request a re-run if they cannot get torque line on it and I will run it with bonnet up so the car is not having a fit over temperatures.
Good to see the difference the differential makes though, 5th is now reduced to 156mph, compared to previous high of 170mph. It suits the car far better because now the car can hit theoretical top speed in 6th gear which is now around 185mph which the car can pull, whereas before it was over 200 and it might be quick but it would need 500+ horsepower to achieve 200mph top speed and big power is not the intention for this car as it simply does not need big power due to its lightweight, differential and SMG. It embarrasses more power cars on the road and track.
Had a look over my Powerstation and Ti graphs, I think Ti might have messed up the power readings on my graph:
If you look at wheel power, they are actually only 4WHP apart, yet the crank power is nearly 50BHP apart.
Something is not adding up, I also notice the fact the graph has no torque readings and I can see right at the top of the run timing is pulled as car stops making power whereas at Powerstation it kept making power no doubt helped by the fact it was absolutely FREEZING that day.
I am going to go back today and have my graph reloaded and try to get the torque figure to show on it as maybe they had a setting wrong as something does not look right.
Will also request a re-run if they cannot get torque line on it and I will run it with bonnet up so the car is not having a fit over temperatures.
Good to see the difference the differential makes though, 5th is now reduced to 156mph, compared to previous high of 170mph. It suits the car far better because now the car can hit theoretical top speed in 6th gear which is now around 185mph which the car can pull, whereas before it was over 200 and it might be quick but it would need 500+ horsepower to achieve 200mph top speed and big power is not the intention for this car as it simply does not need big power due to its lightweight, differential and SMG. It embarrasses more power cars on the road and track.
How did you make 30bhp more than mine @ fly with only 4hp @ wheels more.
Were similar speeds achieved? Obviously faster speed = more drag = lower whp figures in comparison to flywheel calculations?
Oh...
381bhp* ?
Did you talk to them about the day or should I send something over?
Did you talk to them about the day or should I send something over?
Nope 481BHP !
Yes spoken with them, shall post up more shortly, just a little busy.
Even more confused 
Hi there
So here is todays runs:
What Ti were demonstrating here how easy it is to fudge a dyno figure or even make a harmless mistake without realising. 481BHP is because they allowed the car to coast down still in gear!
381BHP run was because they had the handbrake on 4 clicks (very slight) but its enough to boost the result by 20BHP.
The final run was 361BHP, which is below by itself in isolation:
I believe the above is accurate, yes the differential, new tyre size might be impacting the results but a maha can in theory not have the results altered by tyre pressure/size if the coast down is done correctly which is the moment power is removed place the car in neutral and then leave it to de-accelerate to a stop without any interaction on the brakes otherwise the result will be too high and not a true representation.
It was always suspected my M3 seemed to make well a huge amount of power and I believe Ti's dyno is absolute spot on as the results really make sense and seem accurate to me.
Now they did have this to say:
Dyno cell temperature they shall work on but there two fans were bringing outside air in and as such intake temperatures were not as bad as what we were feeling but admittedly after several cars running it was hotter than they would like which is why on Saturday the M3 was pulling timing at top-end, which it did not do today and hence made full power.
They also acknowledge that earlier in the day run up speed on the dyno was taking too long and as such some cars, particular turbo cars were getting hotter than desired for those that ran early, which would rob some horses but not the claimed amount some owners were claiming from expectation to results. This was way in the afternoon cars were being turned around quicker and results were as per expectation.
They now have the run up to speed thing resolved.
They are also have new metal strapping system on the way, so no more issues with strapping down and they shall work on the exhaust extraction system which will reduce heat and of course fumes.
Overall I think they did a good job considering this was their first large dyno group day and even those with auto's who had issues they did spend a lot of time trying to get to run, but it is always made clear that automatics can be a royal pain and the owner should know how to put the car into dyno mode.
The two V8 Mustangs ran so easy because first we knew how to get them into dyno mode and of course Ti were running them upto speed quicker so the stock car actually made bang on the stock power figures.
I feel the venue is good, maybe next time if we go there again they can also get some burgers on the go.
I do want to say thanks to Matt at Ti for being so honest and actually showing how easy it is for a dyno operator to fuge the figures, that is before they even show you the power results because if you change the torque to nm, it actually boost the horsepower figure too as the correction factor is different, so something else to watch out for.
Though the one constant is all the runs were around 260WHP.
P.S. So yeah the M3 aint really 481BHP, I wish haha, it is most realistically around 360BHP, it most certainly feels faster than ever, so on the road nothing lost I just think something odd was happening at PS looking at drag figures, I probably put the handbrake partially on like a fool.
So here is todays runs:
What Ti were demonstrating here how easy it is to fudge a dyno figure or even make a harmless mistake without realising. 481BHP is because they allowed the car to coast down still in gear!
381BHP run was because they had the handbrake on 4 clicks (very slight) but its enough to boost the result by 20BHP.
The final run was 361BHP, which is below by itself in isolation:
I believe the above is accurate, yes the differential, new tyre size might be impacting the results but a maha can in theory not have the results altered by tyre pressure/size if the coast down is done correctly which is the moment power is removed place the car in neutral and then leave it to de-accelerate to a stop without any interaction on the brakes otherwise the result will be too high and not a true representation.
It was always suspected my M3 seemed to make well a huge amount of power and I believe Ti's dyno is absolute spot on as the results really make sense and seem accurate to me.
Now they did have this to say:
Dyno cell temperature they shall work on but there two fans were bringing outside air in and as such intake temperatures were not as bad as what we were feeling but admittedly after several cars running it was hotter than they would like which is why on Saturday the M3 was pulling timing at top-end, which it did not do today and hence made full power.
They also acknowledge that earlier in the day run up speed on the dyno was taking too long and as such some cars, particular turbo cars were getting hotter than desired for those that ran early, which would rob some horses but not the claimed amount some owners were claiming from expectation to results. This was way in the afternoon cars were being turned around quicker and results were as per expectation.
They now have the run up to speed thing resolved.
They are also have new metal strapping system on the way, so no more issues with strapping down and they shall work on the exhaust extraction system which will reduce heat and of course fumes.
Overall I think they did a good job considering this was their first large dyno group day and even those with auto's who had issues they did spend a lot of time trying to get to run, but it is always made clear that automatics can be a royal pain and the owner should know how to put the car into dyno mode.
The two V8 Mustangs ran so easy because first we knew how to get them into dyno mode and of course Ti were running them upto speed quicker so the stock car actually made bang on the stock power figures.
I feel the venue is good, maybe next time if we go there again they can also get some burgers on the go.
I do want to say thanks to Matt at Ti for being so honest and actually showing how easy it is for a dyno operator to fuge the figures, that is before they even show you the power results because if you change the torque to nm, it actually boost the horsepower figure too as the correction factor is different, so something else to watch out for.
Though the one constant is all the runs were around 260WHP.
P.S. So yeah the M3 aint really 481BHP, I wish haha, it is most realistically around 360BHP, it most certainly feels faster than ever, so on the road nothing lost I just think something odd was happening at PS looking at drag figures, I probably put the handbrake partially on like a fool.