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Rolling road today #1500357
27/07/2014 17:04
27/07/2014 17:04

C
Coupepower2014
Unregistered
Coupepower2014
Unregistered
C



Hey guys took my coupe to a rolling road today made 235bhp which isn't bad I suppose, it's got a full exhaust system l, decat, panel filter and gtec1 but it's got a slight problem under load the boost keeps jumping up and down but at high rpm it's fine? It was fine on the rollers no problems I was hoping for abit more power but I suppose I'll have to find some mods any ideas?

Re: Rolling road today [Re: ] #1500359
27/07/2014 17:07
27/07/2014 17:07

N
nismo
Unregistered
nismo
Unregistered
N



what make of dyno was it ?

Re: Rolling road today [Re: ] #1500369
27/07/2014 18:02
27/07/2014 18:02

C
Coupepower2014
Unregistered
Coupepower2014
Unregistered
C



I'm not sure it was at dynodaze?? And I was told if it wasn't so hot out it would of bin abit higher?? Torque was only 260 which I was disappointed with

Re: Rolling road today [Re: ] #1500382
27/07/2014 18:55
27/07/2014 18:55
Joined: Dec 2005
Posts: 1,670
SW London
Rudidudi Offline
My life on the forum
Rudidudi  Offline
My life on the forum

Joined: Dec 2005
Posts: 1,670
SW London
what makes you think that any rr figures are accurate? wink

you should be more concerned with the shape of the curves and the boost fluctuations mate, not the number on the rollers.

was the fueling good across the rev range?

Re: Rolling road today [Re: Rudidudi] #1500386
27/07/2014 19:15
27/07/2014 19:15

C
Coupepower2014
Unregistered
Coupepower2014
Unregistered
C



Not really that accurate just around abouts arnt they my brothers 1.8 t standard 150 had a remap and exhaust hitting 173bhp which sounds about right.
Fuelling was good throughout and boost curves etc were perfect I have the graph here just want the power delivery to be perfect on the road itself lol

Re: Rolling road today [Re: ] #1500398
27/07/2014 20:28
27/07/2014 20:28
Joined: Feb 2006
Posts: 5,390
Essex
Trappy Offline
Forum is my life
Trappy  Offline
Forum is my life

Joined: Feb 2006
Posts: 5,390
Essex
A PRV (Pressure Release Valve) would probably fix the fluctuating boost but it's odd that it didn't show on the boost curve.

To make 260lbs/ft and 235bhp could mean the standard EBV (Electronic Boost Valve) is leaking perhaps...

Post the graphs up though!


F****** b****** thing...
Re: Rolling road today [Re: ] #1500418
27/07/2014 21:07
27/07/2014 21:07
Joined: Aug 2007
Posts: 8,057
Southsea
G
Gunzi Offline
Club member 189, Former Club President
Gunzi  Offline
Club member 189, Former Club President
Je suis un Coupé
G

Joined: Aug 2007
Posts: 8,057
Southsea
Yes pop the graphs up. Typically the standard turbo will kick out similar torque and power figures, and there's quite a difference in your readings which suggests an issue. As really eluded to it could be a simple fix.

Re: Rolling road today [Re: ] #1500440
27/07/2014 22:31
27/07/2014 22:31

C
Coupepower2014
Unregistered
Coupepower2014
Unregistered
C



It has a bailey dump valve on would this affect it in anyway? Does it need to be a recirculating dump valve or can it have any? Even the guy at the rolling road said the engines are parculiar lol but he knew everything about vw/Audi engines.
Can anyway tell me how to post my graphs off my iphone or will I need my laptop??

Re: Rolling road today [Re: ] #1500499
28/07/2014 16:09
28/07/2014 16:09
Joined: Aug 2007
Posts: 8,057
Southsea
G
Gunzi Offline
Club member 189, Former Club President
Gunzi  Offline
Club member 189, Former Club President
Je suis un Coupé
G

Joined: Aug 2007
Posts: 8,057
Southsea
You can do it from your iphone just download the photobucket app and follow these instructions.


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