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Author Topic: Hurdy's Golf .:R.  (Read 729683 times)

Offline rdfcpete

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Re: Hurdy's Golf .:R
« Reply #885 on: November 24, 2012, 12:22:07 am »
Looks beasty, yet still appears a sleeper?  :smiley: Perfect.
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Offline RedRobin

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Re: Hurdy's Golf .:R
« Reply #886 on: November 24, 2012, 11:43:29 am »
.
Doesn't look like a sleeper to me - Looks purposeful, but I guess that's because we instantly notice certain mods.

At last some good photos to do her justice  :happy2:
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Offline Hurdy

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Re: Hurdy's Golf .:R
« Reply #887 on: November 25, 2012, 07:29:57 pm »
Today the R went on a hub dyno, supposedly the most accurate way to directly read WHP and wheel torque on a car. The car was done in FWD mode for reference.

313.9whp & AFR at 12.5


Wheel torque at 333.5lbft


A few questions....

Calculating back to bhp and engine torque what multiplication factor would I need for FWD and DSG as my understanding is that DSG drivetrain losses are more than a manual?

Anyone with comparative AFR results? Looks good to me but unsure if the hump at 3000rpm that goes to 13.5 is too lean?

Anyone?
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Offline GrayMK5GTI

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Re: Hurdy's Golf .:R
« Reply #888 on: November 25, 2012, 07:48:53 pm »
I've heard DSG & manuel losses are the same - or near as dammit  :laugh:

Sorry to throw a spanner in the works  :grin:

Graeme
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Offline Hurdy

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Re: Hurdy's Golf .:R
« Reply #889 on: November 25, 2012, 07:50:53 pm »
Quote from: GrayMK5GTI on November 25, 2012, 07:48:53 pm
I've heard DSG & manuel losses are the same - or near as dammit  :laugh:

Sorry to throw a spanner in the works  :grin:

Graeme

So, what are they ?  If you've heard you must know the percentage losses?
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Offline GrayMK5GTI

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Re: Hurdy's Golf .:R
« Reply #890 on: November 25, 2012, 07:55:20 pm »
Sorry mate that's the limit of my knowledge  :grin: - at a guess it may be 19%

Send a PM  to R-Tech Nick or PDT fella  :happy2:

Edit: see here, may help: http://www.golfmkv.com/forums/archive/index.php/t-45214.html
« Last Edit: November 25, 2012, 07:59:33 pm by GrayMK5GTI »
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Offline Hurdy

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Re: Hurdy's Golf .:R
« Reply #891 on: November 25, 2012, 08:06:10 pm »
Quote from: GrayMK5GTI on November 25, 2012, 07:55:20 pm
Sorry mate that's the limit of my knowledge  :grin: - at a guess it may be 19%

Send a PM  to R-Tech Nick or PDT fella  :happy2:

Edit: see here, may help: http://www.golfmkv.com/forums/archive/index.php/t-45214.html

Doesn't give much enlightenment. Maybe if anyone can remember the link to the website that gave hub dyno results. I can't find it even with searching.  :sad1:
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Offline Statller-Stevo

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Re: Hurdy's Golf .:R
« Reply #892 on: November 25, 2012, 08:24:46 pm »


A DSG gives more loss than a manual always! Nearly as much as an auto box, try turning the wheels on a DSG car while it's on a ramp and compare it to a manual, or try to push the car in neutral it's much harder to do

Where was the AFR probe plugged in John, the tail pipes?

BTW that's more wheel hp than my dyno showed
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Offline Hurdy

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Re: Hurdy's Golf .:R
« Reply #893 on: November 25, 2012, 08:39:05 pm »
Yes,the probe was in the exhaust pipe. I think it was also in the valved pipe.
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Offline Cupra R

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Re: Hurdy's Golf .:R
« Reply #894 on: November 25, 2012, 08:42:34 pm »
If it was in the Valved side if the exhaust then John, couldn't this explain the AFR hump?
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Offline s3dubbin

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Re: Hurdy's Golf .:R
« Reply #895 on: November 25, 2012, 08:45:45 pm »
Same problem I have had three times now, sure mine was well into the 13's as well.

Stevie.  :drinking:
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Offline Statller-Stevo

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Re: Hurdy's Golf .:R
« Reply #896 on: November 25, 2012, 08:49:52 pm »
You can't really measure AFR correctly after the cat John,  the AFR's look very stable after the initial load is taken up.
To check if the car is running lean you'd have to log the fuel measuring systems and lambda to see If the requested is lower than the actual, by the way your car drives & the previous OBD data we've taken, I would say its more than happy regards fuel trims  :happy2:
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Offline Sunglasses Ron

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Re: Hurdy's Golf .:R
« Reply #897 on: November 25, 2012, 09:08:52 pm »
Looks pretty healthy there John.. What other cars were running on the day as a comparison?
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Offline Hurdy

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Re: Hurdy's Golf .:R
« Reply #898 on: November 25, 2012, 09:19:40 pm »
Quote from: Sunglasses Ron on November 25, 2012, 09:08:52 pm
Looks pretty healthy there John.. What other cars were running on the day as a comparison?

It was a Volvo performance day. Lots of T5 motors in different states of tune. A BMW E36 328 did 181whp, a Merc E55 AMG did 293whp. Top honours went to my mate Jon with an S40 auto with 354whp. Fast car that over 60mph!

My car feels very strong and is currently doing 12.2-12.3 on 1/4 mile runs with the Performance box.  :driver:
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Offline Statller-Stevo

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Re: Hurdy's Golf .:R
« Reply #899 on: November 25, 2012, 09:51:13 pm »
Told you Chippy Johns went well Hurds!!  :driver:
If you remember he made 330 WHP on mine,
P.S it's the tyres and brakes that scare the sh*te out of me , you just can't stop that thing at all !!  :scared:
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