cosie going on rollers tues 23 oct anything i need to know ?
#1
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From: st neots cambridgeshire
cosie going on rollers tues 23 oct anything i need to know ?
got my car booked in at 1320 autos rolling road next tuesday. very helpful guys they staying open late for me and cabrio boy due to my herific work load someone i know has been up there with his 2000 mile 07 fiesta st and made same bhp as manufacturer states so must be near enough for accuracy.
i trust them but would still like to know for myself.
just wondered anything i need to keep my eye on.
ie whats maximum acts before meltdown and afr limit before meltdown ? its just cossie paranoia i know but id rather know the limits before i go.
and anything else anyone can advise
thanks
i trust them but would still like to know for myself.
just wondered anything i need to keep my eye on.
ie whats maximum acts before meltdown and afr limit before meltdown ? its just cossie paranoia i know but id rather know the limits before i go.
and anything else anyone can advise
thanks
#3
I don't understand why you have booked it there rather than Nobles, as all it is going to do is raise more questions .
1. If it makes more power than Nobles, you will have no idea if this is because of the roller size differences, software or because it truly is more powerful.
2. If it makes less power than Nobles, you will be gutted and still won't know if it is due to the same reasons as the above.
The only rollers that make reasonable accurate repeatable representations are the Dyno-dynamics ones, but that doesn't help, as your original figure wasn't obtained at one of these in the first place .
1. If it makes more power than Nobles, you will have no idea if this is because of the roller size differences, software or because it truly is more powerful.
2. If it makes less power than Nobles, you will be gutted and still won't know if it is due to the same reasons as the above.
The only rollers that make reasonable accurate repeatable representations are the Dyno-dynamics ones, but that doesn't help, as your original figure wasn't obtained at one of these in the first place .
#4
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From: st neots cambridgeshire
Originally Posted by Mike Rainbird
I don't understand why you have booked it there rather than Nobles, as all it is going to do is raise more questions .
1. If it makes more power than Nobles, you will have no idea if this is because of the roller size differences, software or because it truly is more powerful.
2. If it makes less power than Nobles, you will be gutted and still won't know if it is due to the same reasons as the above.
The only rollers that make reasonable accurate repeatable representations are the Dyno-dynamics ones, but that doesn't help, as your original figure wasn't obtained at one of these in the first place .
1. If it makes more power than Nobles, you will have no idea if this is because of the roller size differences, software or because it truly is more powerful.
2. If it makes less power than Nobles, you will be gutted and still won't know if it is due to the same reasons as the above.
The only rollers that make reasonable accurate repeatable representations are the Dyno-dynamics ones, but that doesn't help, as your original figure wasn't obtained at one of these in the first place .
i know what ur saying mate and after dingys latest im dubious about nobles. i know these are accurate as theyve had a brand new standard car on them as a benchmark and came back spot on. and there only bout 3 miles from my back door
#6
Originally Posted by scoooby slayer
i know these are accurate as theyve had a brand new standard car on them as a benchmark and came back spot on.
at least going back to same rollers you have (in theory) a better chance of seeing gains/losses compared to your last run there.
#7
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From: st neots cambridgeshire
Originally Posted by Billabong
Originally Posted by scoooby slayer
i know these are accurate as theyve had a brand new standard car on them as a benchmark and came back spot on.
at least going back to same rollers you have (in theory) a better chance of seeing gains/losses compared to your last run there.
a standard car thats brand new done 2000 miles made exactly flywheel horsepower it should of done.
that to me proves there near enough.
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#8
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From: st neots cambridgeshire
Originally Posted by staffi
Good luck, set your WANTED figure low, you'll not be TO dissapointed then
and if its to low then the tuning will have to begin
cant see it though tbh as how quick it is.
will post graphs when ive been
#9
Was it a turbo car though?
I have no idea of the quality of the fans at the RR you are booked into, but they make little difference on a NA car, stick one on the rollers with a turbot on, and if the fans are insufficient, the ACTs can rocket to 70°C and you will produce rubbish figures.
I have no idea of the quality of the fans at the RR you are booked into, but they make little difference on a NA car, stick one on the rollers with a turbot on, and if the fans are insufficient, the ACTs can rocket to 70°C and you will produce rubbish figures.
#10
Originally Posted by Mike Rainbird
The only rollers that make reasonable accurate repeatable representations are the Dyno-dynamics ones
the system they have of supplying similar equipment (specifically the fans) and using the shoot out mode to compare between different sites should make them reasonably comparable, but no more or less accurate than any other and no more comparable than any other make of dyno that would do the same.
it's just marketing, and it's obviously working if people like you believe it
i agree entirely that if he wants to compare before and after results, he needs to go back to the same place and run under the same conditions
#12
Originally Posted by Mike Rainbird
The only rollers that make reasonable accurate repeatable representations are the Dyno-dynamics ones, but that doesn't help, as your original figure wasn't obtained at one of these in the first place .
#13
Originally Posted by scoooby slayer
i know what ur saying mate and after dingys latest im dubious about nobles. i know these are accurate as theyve had a brand new standard car on them as a benchmark and came back spot on. and there only bout 3 miles from my back door
Cooling is better than TOTD and it hit peak power where it was meant to unlike at TOTD where it made peak power 1000rpm less.
#14
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From: st neots cambridgeshire
Originally Posted by dingy
Originally Posted by scoooby slayer
i know what ur saying mate and after dingys latest im dubious about nobles. i know these are accurate as theyve had a brand new standard car on them as a benchmark and came back spot on. and there only bout 3 miles from my back door
Cooling is better than TOTD and it hit peak power where it was meant to unlike at TOTD where it made peak power 1000rpm less.
so i need to watch at what revs i make peak power, make sure boost is holding 32 and make sure acts dont go above 50 c then ideally.
if nobles is accurate then mate should be interesting as she made 442 at nobles on lower boost although i dont know what acts were.
thanks everyone for comments anything else i need to watch ?
il post results once ive been
#16
Originally Posted by Mitsy FQ
the rolling road operator will be watching out for the necessary data and problems
#17
Originally Posted by foreigneRS
Originally Posted by Mitsy FQ
the rolling road operator will be watching out for the necessary data and problems
#21
Originally Posted by foreigneRS
Originally Posted by Mike Rainbird
The only rollers that make reasonable accurate repeatable representations are the Dyno-dynamics ones
the system they have of supplying similar equipment (specifically the fans) and using the shoot out mode to compare between different sites should make them reasonably comparable, but no more or less accurate than any other and no more comparable than any other make of dyno that would do the same.
it's just marketing, and it's obviously working if people like you believe it
i agree entirely that if he wants to compare before and after results, he needs to go back to the same place and run under the same conditions
Dingly,
I have commented on the peak power reading in a previous post, if you chose to ignore this, then that is your fault . However, at a guess, Chris did it on roller speed and this didn't sync with the actual rpm at high rpm due to tyre growth etc.
#22
Originally Posted by Mike Rainbird
Dingly,
I have commented on the peak power reading in a previous post, if you chose to ignore this, then that is your fault . However, at a guess, Chris did it on roller speed and this didn't sync with the actual rpm at high rpm due to tyre growth etc.
I have commented on the peak power reading in a previous post, if you chose to ignore this, then that is your fault . However, at a guess, Chris did it on roller speed and this didn't sync with the actual rpm at high rpm due to tyre growth etc.
#23
Originally Posted by foreigneRS
Originally Posted by Mitsy FQ
the rolling road operator will be watching out for the necessary data and problems
#24
Originally Posted by Charlie Chalk
Originally Posted by foreigneRS
Originally Posted by Mitsy FQ
the rolling road operator will be watching out for the necessary data and problems
#27
Steve,
You need to ask Chris, as I was GUESSING at the reason why your peak would be different.
However, unles you know how Noble's obtained their rpm reading compared to how TOTD obtained theirs, it could be that the Noble reading is the incorrect one . You need to establish this to enable criticism to be directed in the right place .
You need to ask Chris, as I was GUESSING at the reason why your peak would be different.
However, unles you know how Noble's obtained their rpm reading compared to how TOTD obtained theirs, it could be that the Noble reading is the incorrect one . You need to establish this to enable criticism to be directed in the right place .
#28
Originally Posted by lead_foot
Originally Posted by Mitsy FQ
you can buy and fit your own simple accurate act gauge mike r sells them
I want stuff like this, Im paranoid about my car enough at the moment
#30
Originally Posted by Mike Rainbird
Leadfoot,
What is the sample rate of that and what does it read up to?
What is the sample rate of that and what does it read up to?
#31
Originally Posted by Charlie Chalk
Does that just probe into the boost pipe Is it not secured better?
I want stuff like this, Im paranoid about my car enough at the moment
I want stuff like this, Im paranoid about my car enough at the moment
which attaches to the inlet manifold.
#35
lead_foot also important is the response time of the sensor, not just the refresh rate. that sensor looks to have quite a large thermal inertia as it is a relatively large bit of metal, so it may not react quickly enough to changes in ACT to monitor them properly, although i am sure that it is adequate for checking for sustained periods of high ACTs and would be good enough for a session on the rollers
#37
Originally Posted by foreigneRS
lead_foot also important is the response time of the sensor, not just the refresh rate. that sensor looks to have quite a large thermal inertia as it is a relatively large bit of metal, so it may not react quickly enough to changes in ACT to monitor them properly, although i am sure that it is adequate for checking for sustained periods of high ACTs and would be good enough for a session on the rollers
#39
They've just been discontinued (hence my questions on what to do in the interim), so I am waiting for the new one to be produced, which instead of being back-lit will come with a choice of red, blue or green LCD displays. Temp range will then be up to 1150°C, so that it can be used for air (both pre and post intercooler), water, oil and even EGT! However, I can't see this being available until the new year .