First visit to Mr Dyno
Discussion
Hello all, I thought Id post up my first experience on the dyno.
Firstly Iain at Power Engineering was very helpfull as I wanted to sit beside him with my laptop and log everything on efilive.
We did a few runs once everything was buckled down, The car wanted to climb off the rollers so we had to do the run in 5th gear even though he ran a strap through the back doors.
So at this point I had spent the best part of 2 months messing with efilive and changing just about everything, the stock mapping was well gone and Im running a custom os with 3bar support mainly for the dual spark maps and good mafless support. Im also commanding my AFR ratio across all rpm and map points.
Top MAP pressure was 103kpa so even with the gutted granatelli maf disconnected in the intake there wasnt too much restriction, my injectors were maxing out at 92%.
Anyway first run was fine, Iain suggested adding some more fuel at peak torque and a little more at max rpm. I did this as well as dropping a half a degree of timing up top as I had picked up some knock retard with the scanner.
Final run was up 3bhp and 2ft/lb over my base tune. I was going to mess with timing to see what difference that made, but as Im planning on a cam install in a couple of months left it as it was.
Final results on a 2000 HSV R8 was 364ft/lb and 362bhp but as you can see on the chart the dyno ran out of puff as its only rated to 400bhp, so I think there might have been a little more to be had as the chart dies around 5000rpm, it should be making power to about 5400 or so.
Mods are k&n hsv intake, 1.8 rockers and dual 2.5" exhaust, LS1 intake and stock TB.
Not quite as much as the supercharged guys but not bad considering this was all tuned by myself with efilive and I had no previous tuning experience before november.
Firstly Iain at Power Engineering was very helpfull as I wanted to sit beside him with my laptop and log everything on efilive.
We did a few runs once everything was buckled down, The car wanted to climb off the rollers so we had to do the run in 5th gear even though he ran a strap through the back doors.
So at this point I had spent the best part of 2 months messing with efilive and changing just about everything, the stock mapping was well gone and Im running a custom os with 3bar support mainly for the dual spark maps and good mafless support. Im also commanding my AFR ratio across all rpm and map points.
Top MAP pressure was 103kpa so even with the gutted granatelli maf disconnected in the intake there wasnt too much restriction, my injectors were maxing out at 92%.
Anyway first run was fine, Iain suggested adding some more fuel at peak torque and a little more at max rpm. I did this as well as dropping a half a degree of timing up top as I had picked up some knock retard with the scanner.
Final run was up 3bhp and 2ft/lb over my base tune. I was going to mess with timing to see what difference that made, but as Im planning on a cam install in a couple of months left it as it was.
Final results on a 2000 HSV R8 was 364ft/lb and 362bhp but as you can see on the chart the dyno ran out of puff as its only rated to 400bhp, so I think there might have been a little more to be had as the chart dies around 5000rpm, it should be making power to about 5400 or so.
Mods are k&n hsv intake, 1.8 rockers and dual 2.5" exhaust, LS1 intake and stock TB.
Not quite as much as the supercharged guys but not bad considering this was all tuned by myself with efilive and I had no previous tuning experience before november.
complete with blast doors! I thought Linden & WRC had identical systems? Seem to remember one of Linden's Monaro's went to a WRC R/R day as a comparison & produced the same figures.
Must admit, I don't like the car trying to jump off tales that I've often heard about R/R's.
Wonder if V8 HSV jumped about on the rollers when It was Dynoed @ Linden's the other day?
Must admit, I don't like the car trying to jump off tales that I've often heard about R/R's.
Wonder if V8 HSV jumped about on the rollers when It was Dynoed @ Linden's the other day?
A57 HSV said:
I thought Linden & WRC had identical systems? Seem to remember one of Linden's Monaro's went to a WRC R/R day as a comparison & produced the same figures.
Must admit, I don't like the car trying to jump off tales that I've often heard about R/R's.
Wonder if V8 HSV jumped about on the rollers when It was Dynoed @ Linden's the other day?
They are both Dyno Dynamics. I would expect them to yield the same figs.
On a Dyno Dynamics rolling road, the cars are strapped differently to other RR's, they should NEVER jump off the rollers! We ran this PH'ers Supra the other day and it did'nt even trouble the rollers...
www.pistonheads.co.uk/gassing/topic.asp?t=226661&f=71&h=0&p=1
wortec1 said:
"vixpy1" Do you place the intake temp sensor in the airflow (outside of car) or inside the intake track (airbox)?
Lost of the cars we run have cone type filters, so we place the intake sensor on there.
If the car has an intake box we place the sensor up the intake pipe, but not inside the box.
vixpy1 said:
I thought WRC had the only approved Dyno Dynamics RR in Europe ?
I'm not sure what they mean by 'approved'
Our Pistonheads banner advert states. The only UK dyno facility approved by Evo Magazine. This statement relates to the fact that Evo chose us to benchmark the "claimed horsepower" vs the actual power delivered by some rogue press cars. Now we test all cars being UK roadtested by Evo Magazine.
Cheers
Allan
Have to say, cant believe magazines have taken so long to test hp. They test everything else but take power figures for granted, then get some unobtainable 0-60, 0-100 and top speed times as the press car has been fettled!!!
Good move, well done.
PS
The approved statement i thought i saw in EVO mag, but at my age the memory goes!!!
Good move, well done.
PS
The approved statement i thought i saw in EVO mag, but at my age the memory goes!!!
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