Dyno test results

N

ncrossy1980

Active member
 Newcastle Upon Tyne
Just got back from the test station, had it up on the rolling road.
2006 with 64k miles, totally standard/stock.
Results = Max 325.3BHP, 264 ft.lbs torque

Was never expecting the stock 343BHP and I'm really quite happy with the results. Has anyone else had their stock ///M tested, anyone had massively differing results? Interested to see whether mileage or any other factors have any influence on the boom boom.
 
v interesting -i was going to ask that same question actually at some stage -if anyone had dyno'd their car .
I recall watching top gear once when they dyno'd some older sheds incl a BMW 325 and the fall off in power/torque was dramatic
You've got a healthy engine there -well done
 
Don't forget that there'll be a slightly lower power figure due to the fact that the car is stationary, as even with a ruddy great fan at the front, you won't get the same ram air effect of doing 60-130mph on the road.
 
The absolute numbers a dyno puts out are useless to compare.
I mean that 325bhp could just as well measure 350bhp on a different brand of dyno. I've seen z4m's dyno at 270bhp, and there was nothing wrong with the z4m....
So a number like that only has some meaning if it says 'on #### dyno' at ##degree F of C and at ##% relative humidity and ##m altitude.

From a number of brands it is known if they measure really high or really low.
The spread in dyno accuracy is much much greater than the loss in HP over the years (not regarding extremes obviously).

Also the ##hp to the wheels is more interesting I think.
 
True that. I was actually a bit anxious about getting it done, it was like waiting to hear back news from a doctor...! For the exact same reason the mad professor said, I watched that Top Gear with the old cars that had dropped in power massively over the years.
Unless someone can advise otherwise, I plan on having it terracleaned as they claim to be beneficial for performance and efficiency although I haven't done my research on that yet for high performance cars. I would never expect noticeably better performance but unless it's utterly useless or detramental, it can only help.
 
Terraclean is that stuff that was on wheeler dealers with the ultra pure gasoline machine hooked up to the fuel rail?
I guess it won't hurt, but I don't think your car has running issues, otherwise the dyno operator would have said so.
So maybe you won;t gain a thing.. At least you'll know on forehand how much it costs.

I think the wheeler dealer episode was a bit exaggerated. I mean the engine temperature is extremely influential on the emissions they measure in that episode.
Terraclean might be beneficial if you drive a lot of short trips, and sometimes have some yellow sludge on the inside of your oil filler cap.
An engine cleans itself when its hot, but pollutes when it's cold, so the way you use it is key.

As long as you don't use stuff like seafoam and such.
 
GuidoK said:
Terraclean is that stuff that was on wheeler dealers with the ultra pure gasoline machine hooked up to the fuel rail?
I guess it won't hurt, but I don't think your car has running issues, otherwise the dyno operator would have said so.
So maybe you won;t gain a thing.. At least you'll know on forehand how much it costs.

I think the wheeler dealer episode was a bit exaggerated. I mean the engine temperature is extremely influential on the emissions they measure in that episode.

As long as you don't use stuff like seafoam and such.
Click to expand...
Yea a lass at work had her old Suzuki Swift terracleaned, she said the difference was really noticeable for her... massively, but that was high miler diesel. Afaik, it just cleans out the system like a colonic irrigation for the car... so even if there's no performance boost it can still only be a healthy choice. I'd still have to research it up though. I wouldn't do it for any performance gain, it would just purely be a TLC thing.
 
GuidoK said:
The absolute numbers a dyno puts out are useless to compare.
I mean that 325bhp could just as well measure 350bhp on a different brand of dyno. I've seen z4m's dyno at 270bhp, and there was nothing wrong with the z4m....
So a number like that only has some meaning if it says 'on #### dyno' at ##degree F of C and at ##% relative humidity and ##m altitude.

From a number of brands it is known if they measure really high or really low.
The spread in dyno accuracy is much much greater than the loss in HP over the years (not regarding extremes obviously).

Also the ##hp to the wheels is more interesting I think.
Click to expand...


ALso, the 325bhp is a calculated figure - the RWHP that would have been measured will be much less than that due to transmission losses etc. The quoted 340bhp would have been the power produced on a bench :)

With dyno's it's better to compare with other similar cars on the day.
Some dyno operators have been known to tweak the correction amount so customers aren't unhappy
 
You must log in or register to reply here.
Back
Top Bottom