2010 S4 B8 MORE powerful than claimed
2010 S4 B8 MORE powerful than claimed
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Discussion

Andyuk911

Original Poster:

1,979 posts

240 months

Thursday 26th November 2009
quotequote all
Has anyone dynoed a UK car ?

This links shows the S4 B8 produces more power than advertise ..

http://www.autoblog.com/2009/10/28/report-evidence...

Dr G

15,998 posts

273 months

Thursday 26th November 2009
quotequote all
Bloody hell! No wonder they shift!

Seez

656 posts

211 months

Thursday 26th November 2009
quotequote all
And the fuel economy is no better than the V8!!

Edited by Seez on Thursday 26th November 12:09

Dr G

15,998 posts

273 months

Thursday 26th November 2009
quotequote all
Probably is if you drive like your grandmother...

Seez

656 posts

211 months

Thursday 26th November 2009
quotequote all
How tempting is that, I always wonder why the RS4 (2.7TT) could only manage 16 around town, sometimes less!!!

ge0rge

3,053 posts

236 months

Thursday 26th November 2009
quotequote all
Wonder if theyre all like that though..

T89 Callan

8,422 posts

224 months

Thursday 26th November 2009
quotequote all
Aftermarket tuner in 'over-reading dyno' shocker!

If that Dyno is reading true then I'm a hippy MMGW believer.

They pump the figures up on their dyno's so when they sell Jo Public some crappy mod it makes it look like it's made a load of difference.

steve--m

65 posts

207 months

Thursday 26th November 2009
quotequote all
Wouldn't be the first time cars from the VAG group have had their power advertised conservatively though.

Take the Golf E30 & Leon Cupra which both used a "detuned" version of the S3 engine. Plenty of independant dyno's showed these cars were making almost as much as the S3 as standard and S3's were making well over their stated figures as well.

LeoSayer

7,853 posts

275 months

Friday 27th November 2009
quotequote all
Seez said:
And the fuel economy is no better than the V8!!
I see evo are getting around 23mpg for their DSG avant, which a V8 would fine hard to achieve. Still well off the official 29mpg combined figure.

Dr G

15,998 posts

273 months

Friday 27th November 2009
quotequote all
Although the chances of a journo driving one gently...

FUBAR

17,065 posts

269 months

Friday 27th November 2009
quotequote all
Sounds like I'll have to pop up to Vixpy @ Surrey Rolling Road and get this checked out then smile

As for fuel consumption, I checked the onboard computer just 2 nights ago, and over 2500 miles of mixed motoring the average is 20.7mpg.

Resetting computer 1 for a light footed motorway only journey it will briefly hit the 29/30mpg, but thats if Im on the M25 and a speed average of 65mph.

But who cares? evil

ETA: I had my previous A4 DTM dynoed and it was bang on manufacturers claim

Edited by FUBAR on Friday 27th November 15:46

Dr G

15,998 posts

273 months

Friday 27th November 2009
quotequote all
FUBAR said:
Sounds like I'll have to pop up to Vixpy @ Surrey Rolling Road and get this checked out then smile
Yes please very much smile

Jhart

51 posts

206 months

Sunday 29th November 2009
quotequote all
FUBAR said:
Sounds like I'll have to pop up to Vixpy @ Surrey Rolling Road and get this checked out then smile

Edited by FUBAR on Friday 27th November 15:46
Wow - do let us know. Pretty exciting prospect.

FUBAR

17,065 posts

269 months

Tuesday 9th February 2010
quotequote all
Righty ho peeps. Popped over to PH's very own rolling road officianado, Vixpy1 at www.surreyrollingroad.co.uk this afternoon (he's an all round good egg, despite the rumours hehe)

I'll post the graphs up when Im at work tomorrow, but basically, if my result is correct/average for the B8 S4, both the tuner quoted and Audi are telling us porkies. The tuner for over stating and Audi for understating wink

Peak HP was 347, peak torque 330 and rear wheel HP (I believe this is rather a black art guestimate) is 272

The Scooby boys who were there when I arrived and stayed to laugh at the boring German car looked a little green round the gills as I drove off hehe

Tame Technician

2,467 posts

235 months

Tuesday 9th February 2010
quotequote all
I think Audi are being a bit conservative with quoted figures these days, after all the hoo har with all the B7 RS4's being 20+ bhp down.

I found out this week, B8 S4's improve masivly with milage (as in running in) I drive our demo when it had about 20miles on it, and it was very disapointing (compaired with the V8 S4). Drove it again when it came in for first service 15,000 on the clock, its a different car, feel like its gained about 50bhp.

Dr G

15,998 posts

273 months

Wednesday 10th February 2010
quotequote all
Nice one Fubar, would be really interesting to see the graph.

Which gearbox did you go for and how many miles have you done now?

TT I noticed the same thing with RS4s, brand new they didn't feel all that exciting. It's a similar story with cars that get mollycoddled, they never feel as fast as cars that get used properly.

FUBAR

17,065 posts

269 months

Wednesday 10th February 2010
quotequote all
Graphs as promised smile





Vixpy said he had an RS4 in yesterday morning and that only pulled, iirc, 380ish. He said that the old RS4s made bang on the claims (380 too?)

DrG, car has the DSG and has now done 5,800 miles smile

Dr G

15,998 posts

273 months

Wednesday 10th February 2010
quotequote all
Vroom vroom driving

Lots of talk about extracting more power from these but doesn't seem to have hit the UK yet:

http://www.germancarforum.com/a4-s4-rs4/29091-audi...


FUBAR

17,065 posts

269 months

Wednesday 10th February 2010
quotequote all
MTM already offer a 430bhp/515nm upgrade (and if my previous experience of MTM via Kim Collins is anything to go by, these figures are conservative wink). Plus a Miltek

http://www.qstuning.com/display.php?make=1&mod...

But do I really need two 430bhp cars in the garage? evil

Dr G

15,998 posts

273 months

Wednesday 10th February 2010
quotequote all
Yes, yes you do.

What a silly question laugh