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Author My rolling road results
adiohead
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Registered: 28th Sep 01
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21st Nov 11 at 12:03   View User's Profile U2U Member Reply With Quote

I just read everyone's posts about the massive losses on these rollers.

Weird. Never heard anything like it before, maybe he should buy some new ones.
big eck
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Registered: 20th Apr 03
Location: Tullibody. Drives - Audi B8 S4 & Fiesta Zetec-S
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21st Nov 11 at 12:04   View User's Profile U2U Member Reply With Quote

They are brand new
Eck
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Registered: 17th Apr 06
Location: Lundin Links, Fife
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21st Nov 11 at 12:05   View Garage View User's Profile U2U Member Reply With Quote

Adi, they are brand new rollers All ATF figures that are created are a guess anyway? Besides, each figure he gave out ATF actually matched up to expectations.
adiohead
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Registered: 28th Sep 01
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21st Nov 11 at 12:09   View User's Profile U2U Member Reply With Quote

maybe he should take them back and get one that works
Eck
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Registered: 17th Apr 06
Location: Lundin Links, Fife
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21st Nov 11 at 12:09   View Garage View User's Profile U2U Member Reply With Quote

Your baiting is really poor these days, Adi. Get some meat in you. Maybe bring back the intellectual chap you once were.
big eck
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Registered: 20th Apr 03
Location: Tullibody. Drives - Audi B8 S4 & Fiesta Zetec-S
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21st Nov 11 at 12:10   View User's Profile U2U Member Reply With Quote

Mate, fuckin wisen up. Your just coming across as a bit of a twat as usual.
adiohead
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Registered: 28th Sep 01
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21st Nov 11 at 12:10   View User's Profile U2U Member Reply With Quote

My zetec-s got 99bhp at the wheels.
BarnshaW
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Registered: 25th Oct 06
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21st Nov 11 at 12:16   View User's Profile U2U Member Reply With Quote

i am struggling to understand why the over reading though?

how can a FWD car product such transmission losses on a dyno like that? are they not typically around 3 times more then normal losses?
Eck
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Registered: 17th Apr 06
Location: Lundin Links, Fife
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21st Nov 11 at 12:20   View Garage View User's Profile U2U Member Reply With Quote

I'm trying to find an explanation online tbh I'm not sure if it was his rollers would under read, and he'd correct it, or what I should probably ask him But again, the RS owner expected about 385, and got 385 ATF, because his injectors were maxxed out. A CTR expected 235-240 and got 240. This wasn't us telling him what we expected then getting told btw
Eck
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Registered: 17th Apr 06
Location: Lundin Links, Fife
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21st Nov 11 at 12:21   View Garage View User's Profile U2U Member Reply With Quote

Just to add, running in a higher gear will make a big difference. At the last one, Nic's Corsa had to run in 5th so his ATW figure was lower than it could be. All cars were run in 4th whereas every other place I've been ran in 3rd.
BarnshaW
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Registered: 25th Oct 06
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21st Nov 11 at 12:24   View User's Profile U2U Member Reply With Quote

i see what your saying but then that contradicts that other readings were high?

either way the LCR looks lovely from the other thread and if it feels nice on the road thats the main thing
Eck
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Registered: 17th Apr 06
Location: Lundin Links, Fife
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21st Nov 11 at 12:27   View Garage View User's Profile U2U Member Reply With Quote

I don't really get it either mate So I'm best to ask him before I start spouting shite I know nothing about! That's all I was interested in with my car, a bench mark and to see if it's running well. I'm uploading all my videos of the cars just now so will make a thread shortly!
adiohead
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Registered: 28th Sep 01
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21st Nov 11 at 12:48   View User's Profile U2U Member Reply With Quote

Ok, serious now, I've had some meat.

The wheel figure isn't accurate either, as a standard LCR gets around 200

So the rollers must be under reading, surely? Maybe due to the size and the figures are calculated with extra losses

(I know this probably isn't going to be answered properly without the full explanation from the operator guy)

[Edited on 21-11-2011 by adiohead]
Eck
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Registered: 17th Apr 06
Location: Lundin Links, Fife
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21st Nov 11 at 13:14   View Garage View User's Profile U2U Member Reply With Quote

I'm going to message him later to find out how it's explained. My mate's Cupra R was there too that got 190 odds ATW and that was bog standard.
Nick-S
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Registered: 3rd Mar 04
Location: Leigh. Drives: RS Megane 230 F1 Team R26
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21st Nov 11 at 13:36   View User's Profile U2U Member Reply With Quote

Have u lost alot of torque? 266ft lbs v 193ft lbs
Eck
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Registered: 17th Apr 06
Location: Lundin Links, Fife
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21st Nov 11 at 13:37   View Garage View User's Profile U2U Member Reply With Quote

At the wheels, Nick!
Nick-S
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Registered: 3rd Mar 04
Location: Leigh. Drives: RS Megane 230 F1 Team R26
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21st Nov 11 at 13:40   View User's Profile U2U Member Reply With Quote

Never seen any dyno give diffrences of torque ATW or ATF though. Only power.


Thats a 27% loss in torque

Somethings not right somewere

[Edited on 21-11-2011 by Nick-S]
Eck
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Registered: 17th Apr 06
Location: Lundin Links, Fife
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21st Nov 11 at 13:57   View Garage View User's Profile U2U Member Reply With Quote

Tbh, at the wheel is how it should be given. As that's the genuine figure, not the pub one
Nick-S
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Registered: 3rd Mar 04
Location: Leigh. Drives: RS Megane 230 F1 Team R26
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21st Nov 11 at 14:04   View User's Profile U2U Member Reply With Quote

I know it is but i just though ALL dyno torque figers were givein at the wheels.

Ive never herd of torque ATF before.

Eather way 27% is some loss somewere. (be it rollers or car) But if the car dives spot on who cares?
Eck
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Registered: 17th Apr 06
Location: Lundin Links, Fife
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21st Nov 11 at 14:06   View Garage View User's Profile U2U Member Reply With Quote

It was Russ who told me beforehand that it's the rollers that are making big losses! That's what I was saying to everyone anyway. I'm happy with how my car runs, and I'm glad I got a benchmark!
Seany
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Registered: 13th Dec 06
Location: Dunfermline, Fife : Drives Astra cdti Sri
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21st Nov 11 at 14:33   View User's Profile U2U Member Reply With Quote

That's all I was after, a benchmark to work from. Russ explained pretty much everything I wanted to know after the runs also. Top bloke.
big eck
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Registered: 20th Apr 03
Location: Tullibody. Drives - Audi B8 S4 & Fiesta Zetec-S
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21st Nov 11 at 14:46   View User's Profile U2U Member Reply With Quote

quote:
Originally posted by Eck
I'm going to message him later to find out how it's explained. My mate's Cupra R was there too that got 190 odds ATW and that was bog standard.


The yellow one made 178 atw Eck.

It still feels quick on the road so that's what matters I guess. The only other thing I can do is put it on stars rollers again.
Eck
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Registered: 17th Apr 06
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21st Nov 11 at 14:49   View Garage View User's Profile U2U Member Reply With Quote

Fucking hell what was I thinking of that made that then? I'm not even going to bother taking mine anywhere else. I've got my benchmark, I'm getting Russ to play with the mapping as well, and next year when I'm in search of silly power he'll be the man sorting it!
mwg
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Registered: 19th Feb 04
Location: South Lakes
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21st Nov 11 at 14:54   View User's Profile U2U Member Reply With Quote

Be more bothered about how it feels to drive than how much a dyno said it makes on a certain day
big eck
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Registered: 20th Apr 03
Location: Tullibody. Drives - Audi B8 S4 & Fiesta Zetec-S
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21st Nov 11 at 15:00   View User's Profile U2U Member Reply With Quote

Exactly mate. I just wanted to make sure all was well with the car.

Eck Russ is one of the best in the business. He done his time at Wallace in Aberdeen before moving to HQ.

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