Rolling Road Graph.. Not bad for a 4.2?
Discussion
what are the graphs? is it a before and after set ? Its good power but not brilliant .. std cars make u to 350ish hp if in good condition so I'm guessing your graphs are std and remapped overlaid as there's very little extra hp to be found on a good std 4.2 engine. Once you start modding them though the hp starts to come .. Ive just done an early 4.2 (twin sump plug version so an early engine like yours) that came in at 352 and went out at 382 with some basic mods. But let's face it, any cerb with 360hp is going to be fast so good stuff and i hope you enjoy your car, you know it's pretty pokey now anyway 
ridds said:
Correction factors 0.0%.
That's not good really especially with Intake air of 14°C
I've asked this before, if you check the line above it is corrected to DIN 70020 That's not good really especially with Intake air of 14°C
. The range of different readings above that shows the differnt readings if you want to apply different international standards too. The Qv correction is something used by BMW only on the MAHA rolling road hence 0%. Apparrently all the big German manufacturers Porsche, Audi, VW et al use this rolling road in the developemnt of their cars including their race teams. Its bolted down, set to work, commissioned, calibrated and certificated in situ as only German engineering knows how
. Tis not pushed off the back of a trailer for fair ground power runs at the max power show. I should know I've helped pay for the bloody thing 
(good to see fubes is now continuing the tradition ) HarryW said:
ridds said:
Correction factors 0.0%.
That's not good really especially with Intake air of 14°C
I've asked this before, if you check the line above it is corrected to DIN 70020 That's not good really especially with Intake air of 14°C
. The range of different readings above that shows the differnt readings if you want to apply different international standards too. The Qv correction is something used by BMW only on the MAHA rolling road hence 0%. Apparrently all the big German manufacturers Porsche, Audi, VW et al use this rolling road in the developemnt of their cars including their race teams. Its bolted down, set to work, commissioned, calibrated and certificated in situ as only German engineering knows how
. Tis not pushed off the back of a trailer for fair ground power runs at the max power show. I should know I've helped pay for the bloody thing (good to see fubes is now continuing the tradition ) I thought there was quite a big difference between the Intake temp and Ambient temp (14DegC v 22DegC), so maybe a correction coefficient should be in place?
Jules.
Cyclone1 said:
HarryW said:
ridds said:
Correction factors 0.0%.
That's not good really especially with Intake air of 14°C
I've asked this before, if you check the line above it is corrected to DIN 70020 That's not good really especially with Intake air of 14°C
. The range of different readings above that shows the differnt readings if you want to apply different international standards too. The Qv correction is something used by BMW only on the MAHA rolling road hence 0%. Apparrently all the big German manufacturers Porsche, Audi, VW et al use this rolling road in the developemnt of their cars including their race teams. Its bolted down, set to work, commissioned, calibrated and certificated in situ as only German engineering knows how
. Tis not pushed off the back of a trailer for fair ground power runs at the max power show. I should know I've helped pay for the bloody thing (good to see fubes is now continuing the tradition ) I thought there was quite a big difference between the Intake temp and Ambient temp (14DegC v 22DegC), so maybe a correction coefficient should be in place?
Jules.
I assume the low pressure (1001mb against a standard of 1013) on that day has balanced out the low temperature intake to add virtually nothing to the end result.
I actually think the low intake temp, below that of the ambient is possibly due to the intake probe being in the air stream (100kph) I think. However a low intake reported temp reading will case it to be under corrected, thinking the engine has benefited from cold dense air when in fact it hasn't. The other way around will over read, and is the one to look for. Hence when you see graphs with an intake of say 25 on a Feb day and the car is actually breathing in 5 degrees then there is going to be errors of more than a couple % in favour of the bigger numbers
. So let's get this straight.
If there is a cool South Westerly blowing, pollen count is moderate, there a high level of methane in the air thanks to last night's vindaloo and the dyno operator has failed to turn the calendar over to November because he is too fond of the October jugs, you would need a correction factor of what?
This is like 'do I get on the scales in the morning or evening, clothed or naked, before dump or after dump' (except in my case once a fat oaf always a fat oaf)
If there is a cool South Westerly blowing, pollen count is moderate, there a high level of methane in the air thanks to last night's vindaloo and the dyno operator has failed to turn the calendar over to November because he is too fond of the October jugs, you would need a correction factor of what?
This is like 'do I get on the scales in the morning or evening, clothed or naked, before dump or after dump' (except in my case once a fat oaf always a fat oaf)
Buffoon said:
So let's get this straight.
If there is a cool South Westerly blowing, pollen count is moderate, there a high level of methane in the air thanks to last night's vindaloo and the dyno operator has failed to turn the calendar over to November because he is too fond of the October jugs, you would need a correction factor of what?
This is like 'do I get on the scales in the morning or evening, clothed or naked, before dump or after dump' (except in my case once a fat oaf always a fat oaf)
Depends on how much of a fat oaf you want to believe you are If there is a cool South Westerly blowing, pollen count is moderate, there a high level of methane in the air thanks to last night's vindaloo and the dyno operator has failed to turn the calendar over to November because he is too fond of the October jugs, you would need a correction factor of what?
This is like 'do I get on the scales in the morning or evening, clothed or naked, before dump or after dump' (except in my case once a fat oaf always a fat oaf)
Dyno results are contentious at the best of times so when someone posts up results that are different to the norm (ie the torque on this 4.2 appears to be at least 30-40lb/ft superior to most), then questions will be asked. If a Dyno is not set-up / calibrated correctly and incorrect data is inputted for the dyno runs then this can affect the end result.
Jules.
Whilst most threads involving a rolling road, end up in an argument & subsequently getting closed, they're by far the most interesting.
Everybody hates football hooligans, but if ever there's the slightest whiff of somebody being thrown out of the stadium, every person in the ground watches, and ignores the match
Buffoon said:
So let's get this straight.
If there is a cool South Westerly blowing, pollen count is moderate, there a high level of methane in the air thanks to last night's vindaloo and the dyno operator has failed to turn the calendar over to November because he is too fond of the October jugs, you would need a correction factor of what?
This is like 'do I get on the scales in the morning or evening, clothed or naked, before dump or after dump' (except in my case once a fat oaf always a fat oaf)
If there is a cool South Westerly blowing, pollen count is moderate, there a high level of methane in the air thanks to last night's vindaloo and the dyno operator has failed to turn the calendar over to November because he is too fond of the October jugs, you would need a correction factor of what?
This is like 'do I get on the scales in the morning or evening, clothed or naked, before dump or after dump' (except in my case once a fat oaf always a fat oaf)
by jove he's got it HarryW said:
Buffoon said:
So let's get this straight.
If there is a cool South Westerly blowing, pollen count is moderate, there a high level of methane in the air thanks to last night's vindaloo and the dyno operator has failed to turn the calendar over to November because he is too fond of the October jugs, you would need a correction factor of what?
This is like 'do I get on the scales in the morning or evening, clothed or naked, before dump or after dump' (except in my case once a fat oaf always a fat oaf)
If there is a cool South Westerly blowing, pollen count is moderate, there a high level of methane in the air thanks to last night's vindaloo and the dyno operator has failed to turn the calendar over to November because he is too fond of the October jugs, you would need a correction factor of what?
This is like 'do I get on the scales in the morning or evening, clothed or naked, before dump or after dump' (except in my case once a fat oaf always a fat oaf)
by jove he's got it 
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