Iain@CRD
Lifer
Nice result.
Just remember, tuned on the Dyno for the Dyno
I run the same figures there not long ago @ 1.1 bar, just more torque.
Top marks for that Rory
Tho i wont be using Dastek again lol.
Iain
Rolling Road on 27th.
- Thread starter Iain@CRD
- Start date
Top marks for that Rory
Tho i wont be using Dastek again lol.
Iain
Gee
Member +
Nice result.
Just remember, tuned on the Dyno for the Dyno
I run the same figures there not long ago @ 1.1 bar, just more torque.
This was mapped on the road by Nick and this was simply a dyno run?
Rory
Lifer
Yes it was.
But what im saying is, you will get more HP "figures" when tuned on the dyno.
When live mapped, the numbers are likely to be smaller/lower.
Cheers Iain.
I should have been at a RR day on Saturday, but other commitments got in the road.
Ah well, just have to wait till next year!
Rory
Lifer
After the rolling road, the map will need more than a tweak.
Reading - How to Tune and Modify Engine Management Systems by Jeff Hartman he states,
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"An engine callibrated on the dyno, of almost any kind will almost definitely run suboptimally rich on the street and track. To produce smooth perfomance under all conditions, when you are done with the dyno calibration, you'll need to road test and re-callibrate to eliminate hesitation, stumbling, and surging in ordinary driving, as well as hunting at idle."
***************
The book is worth a read, if you want to understand that bit more.
Rory
Reading - How to Tune and Modify Engine Management Systems by Jeff Hartman he states,
***********
"An engine callibrated on the dyno, of almost any kind will almost definitely run suboptimally rich on the street and track. To produce smooth perfomance under all conditions, when you are done with the dyno calibration, you'll need to road test and re-callibrate to eliminate hesitation, stumbling, and surging in ordinary driving, as well as hunting at idle."
***************
The book is worth a read, if you want to understand that bit more.
Rory
Gee
Member +
Might have a read of that.
When was this book produced?
He does say it will need adjusting on the road, maybe more that a tweak, granted. Even if it takes an hour or more, sounds like you will get the same result if done initially on the RR and then adjusted on the road, but will be easier and maybe safer when started on a RR?
After all, not all tuners have access to private roads and the like.
When was this book produced?
He does say it will need adjusting on the road, maybe more that a tweak, granted. Even if it takes an hour or more, sounds like you will get the same result if done initially on the RR and then adjusted on the road, but will be easier and maybe safer when started on a RR?
After all, not all tuners have access to private roads and the like.
Gee
Member +
I've still to educate myself when it comes to A/F ratio's, so not commented on them at all. Just trying to get an understanding about live road mapping and mapping on the dyno. I'm sure both have the advantages and disadvantages.
I try to look at both sides of things, get information from lots of different sources rather than just one book or one persons opinion.
The A/F is all over the place then? How should it look? I guess it does not matter if it was road or RR is was mapped, the A/F should look/be a certain ratio when off boost and on boost etc?
I try to look at both sides of things, get information from lots of different sources rather than just one book or one persons opinion.
The A/F is all over the place then? How should it look? I guess it does not matter if it was road or RR is was mapped, the A/F should look/be a certain ratio when off boost and on boost etc?
Rory
Lifer
Who was that aimed at?
But yes, i know it shouldnt run that rich, at certain points
At the end of the day, as long as Iain is happy with it, then thats all that matters.
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Gee
Member +
Are everyone educated here enough to understand A/F ratios though? What they should be on/off boost? How they vary depending on what the person wants? All out power vs reliability?
Mine was mapped by a professional in the business for about 20 years or so. I do not have a good enough understanding to question the A/F ratio's used in the map and I am sure other people are the same.
Therefore, if somebody does not fully understand the A/F ratio's used, can they truely be happy?
Yes they can be happy with how the car feels and go's on the road, but if I knew mine was running too rich or too lean and there was room for 'safe' improvement for more power or whatever, I'd want to know about it.
Mine was mapped by a professional in the business for about 20 years or so. I do not have a good enough understanding to question the A/F ratio's used in the map and I am sure other people are the same.
Therefore, if somebody does not fully understand the A/F ratio's used, can they truely be happy?
Yes they can be happy with how the car feels and go's on the road, but if I knew mine was running too rich or too lean and there was room for 'safe' improvement for more power or whatever, I'd want to know about it.
Rory
Lifer
Gee,
I know enough to know about AFR's.
Yes, it is all about Power vs Reliability - Cant have both.
Its all down to the tuner how it turns out, because at the end of the day, they dont want the car back with a blown engine.
The AFR's will be diffirent anyway, as the loads on the car differ from being driven the road, and on the Dyno.
**On a side note, im not having a go at Nicks mapping, just before someone jumps on my back.**
I know enough to know about AFR's.
Yes, it is all about Power vs Reliability - Cant have both.
Its all down to the tuner how it turns out, because at the end of the day, they dont want the car back with a blown engine.
The AFR's will be diffirent anyway, as the loads on the car differ from being driven the road, and on the Dyno.
**On a side note, im not having a go at Nicks mapping, just before someone jumps on my back.**
Mike@TD.co.uk
Registered Trader <a href="http://www.Tuning
+1
Gee
Member +
Chris@CCM
Member +
Who was that aimed at?
But yes, i know it shouldnt run that rich, at certain points
At the end of the day, as long as Iain is happy with it, then thats all that matters.
im just sayn there all over the show. he posted the graphs to get ppls opinions im giving mine. i cant see a need to be in the 10s at any time tbh. every ones diffrent on how they tune but y have all the ups and downs as much as that?
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