278 replies to this topic

[spanner]

Rolling roads are able to measure frictional losses with some accuracy when they knock the car out of gear and let it run down.

Nope, if you knock the car out of gear during coast down, you are measuring nonsense, because the car is in neutral!!! To measure transmission loss correctly, you need to dip the clutch, but remain in gear. Any rolling road operator who knocks the car into neutral during coast down is doing it wrong, and the loss figures will be bullshit.

[Foxy]

Have been to AmD today for remap - here are the results: Mileage: 8232 Temp: 28 - 32 C Pressure: 991 mb First run with Piper back box and Viper induction Kit: Bhp: 148.3 @ 5848 Torque: 148.6 @ 4142 After: Bhp: 159.8 @ 5908 +11.5 bhp Torque: 158.0 @ 4256 + 9.4 lbft Figures don't look particularly impressive but it was a hot adn humid day - not exactly ideal. Power delivery is now much cleaner with a nice extra push about 4k rpm.

[Foxy]

Power graph: oops, that was fookin heaowge!

Edited by Foxy, 16 August 2004 - 08:43 PM.

[Foxy]

try again: fcuk - now it looks sh*t

Attached Files

•  Remap_BHP_Graph.JPG   18.23KB   0 downloads

Edited by Foxy, 16 August 2004 - 08:44 PM.

[Foxy]

Torque: This will look sh*t too - dunno what I'm doing wrong !

Attached Files

•  Remap_lbft_Graph.JPG   17.14KB   0 downloads

[DAZ]

f**k me thats a big graff m8 is that ATW i wont my re map

[markv]

Have been to AmD today for remap - here are the results:

Mileage: 8232
Temp: 28 - 32 C
Pressure: 991 mb

First run with Piper back box and Viper induction Kit:

Bhp: 148.3 @ 5848
Torque: 148.6 @ 4142

After:

Bhp: 159.8 @ 5908 +11.5 bhp
Torque: 158.0 @ 4256 + 9.4 lbft


Figures don't look particularly impressive but it was a hot adn humid day - not exactly ideal.
Power delivery is now much cleaner with a nice extra push about 4k rpm.

Wow, and the only difference between these figures is the remap??? That's a LOT of gain!

Mark

[Duncan]

Foxy - you've obviously scanned the graphs high resolution so the lines on the graph are something like a pixel wide - then rescaled it so the line is less than a pixel wide without using enough colour depth, so basically the line disappears. To get round it, either rescan the paper at lower res, or blur the high res scan before you scale it (making the lines wider than 1 pixel), and the possibly tweak the brightness/contrast controls afterwards to make the line more defined.

[Foxy]

Ah ha! Cheers Dunc Wondered what was going wrong

[Foxy_Jr]

So then, its my turn next for a remap!! What should I go for? AMD / Regal / Courtney??? Currently running : Viper / Piper back box / No Precat. (I think thats right!) What are the benifits of each of the above?? The only thing I can see from the info I have is the raised rev limit with the Regal.... What would you do???

[Jim_Cross]

Is it worth raising the rev limit though without getting higher lift cams? I would have thought that the power drops off around 6500rpm without cams. BTW, where should the rev limit be? I thought it was 6250rpm, but while out last night I was definitely getting to 6500rpm without it cutting in

[UKspeedster]

Is it worth raising the rev limit though without getting higher lift cams? I would have thought that the power drops off around 6500rpm without cams.

BTW, where should the rev limit be? I thought it was 6250rpm, but while out last night I was definitely getting to 6500rpm without it cutting in

I've gone down the Regal route with the higher rev limit. I'd say the advantages are for overtaking manouvres, where you want to drop a gear and plant your foot. The last thing you need is the cutoff sapping all your power at 6000 revs and you reaching for another cog as you're halfway through.

I've not been sitting on the red line all day, but the power delivery is strong through the rev range and I'm personally happy with this map - it's certainly helped with the flat spot at 3000 revs.

[ShinyAndy]

Having driven Minime's with the Regal revised rev limit I didn't really see the benefit as the power dropped off before then anyway. Higher lift cams plus a map to suit would (and does) warrant a higher limit, mine is a real pain as it's just starting to fly and the limiter cuts in

[UKspeedster]

Having driven Minime's with the Regal revised rev limit I didn't really see the benefit as the power dropped off before then anyway. Higher lift cams plus a map to suit would (and does) warrant a higher limit, mine is a real pain as it's just starting to fly and the limiter cuts in

Don't disagree that the power is dropping off, but useful to have that flexibility anyway Besides, if we start talking about higher revs and power at the top of the band, we'll start sounding like we're on the wrong board!

Are AMD meant to be having a higher rev limit in their map too?

[ShinyAndy]

Are AMD meant to be having a higher rev limit in their map too?

Meant to be.. but I'm getting bored of waiting now !

[clipping_point]

Yes it seems strange! EDS/Regal has had it a year and Kreis-tuning in Germany has it. It may be hard to solve in the software but couldn´t they have a look how EDS has solved it?

[ShinyAndy]

Time I think, that b'stard Thorney keeps them busy with trying to tweak his thing so he can shave another 0.0001 sec off his standing quarter time

[Ricky2772]

Having driven Minime's with the Regal revised rev limit I didn't really see the benefit as the power dropped off before then anyway. Higher lift cams plus a map to suit would (and does) warrant a higher limit, mine is a real pain as it's just starting to fly and the limiter cuts in

talking with the HITEC engineer:
he says higher lift and duration makes sense with a supercharged engine, so you can increase the limiter as well. without sportier cams, a higher limiter is useless.

so I guess once I get used to my 220hp's, I'll go for different cams....hope such insane need will arise way far down the road...

[Sicey]

Having driven Minime's with the Regal revised rev limit I didn't really see the benefit as the power dropped off before then anyway. Higher lift cams plus a map to suit would (and does) warrant a higher limit, mine is a real pain as it's just starting to fly and the limiter cuts in 

Don't disagree that the power is dropping off, but useful to have that flexibility anyway Besides, if we start talking about higher revs and power at the top of the band, we'll start sounding like we're on the wrong board!

Are AMD meant to be having a higher rev limit in their map too?

The reason I want that little bit extra on the rev limit is when doing the odd trackdays there have been times when you just want to stretch 2nd or 3rd till the start of the bend and find yourself having to change up quickly and then back down again which is a pain in the arse , the same as overtaking I guess!

[UKspeedster]

The reason I want that little bit extra on the rev limit is when doing the odd trackdays there have been times when you just want to stretch 2nd or 3rd till the start of the bend and find yourself having to change up quickly and then back down again which is a pain in the arse , the same as overtaking I guess!

yup, my rationale too. It may well be quicker to stretch the lower gear, rather than have to change up and get the power on again.

Well, we'll see at Brunters on Sat.