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.
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