Surrey Rolling Road Day - Saturday 17th January 2015

[SuprSi]

Good to hear!
You just need to crack on and get the offside corner tidied up now then

[lynchy]

471ps 686NM torque. 465bhp 505 lbs/ft torque.
More torque then before and you really can feel it ! Doug said the intercoolers are holding it back.
Wagners in a month or two

[R1RS4]

471ps 686NM torque. 465bhp 505 lbs/ft torque.
More torque then before and you really can feel it ! Doug said the intercoolers are holding it back.
Wagners in a month or two

Very impressive, another MRC success, how much more with new inter coolers to come?

[kent_andy]

Way more than what a b7 produces

[lynchy]

471ps 686NM torque. 465bhp 505 lbs/ft torque.
More torque then before and you really can feel it ! Doug said the intercoolers are holding it back.
Wagners in a month or two

Very impressive, another MRC success, how much more with new inter coolers to come?

Another 20 to 25ps or maybe more.

[R1RS4]

471ps 686NM torque. 465bhp 505 lbs/ft torque.
More torque then before and you really can feel it ! Doug said the intercoolers are holding it back.
Wagners in a month or two

Very impressive, another MRC success, how much more with new inter coolers to come?

Another 20 to 25ps or maybe more.

heading towards that 500 club!

[jaygemson]

First off, huge thanks once again to Richard for sorting out this cracking event, and for sourcing the name badges - what a touch

Hugely impressed with the 733bhp RS6. What a weapon. Loved the flames on the GTR, shame about the schoolboy error on the map setting though

Mine - 445HP (yesterday) vs. 490PS (MRC, few months back) for me, Graham.
473HP was Jay's result yesterday.

There was a fairly significant difference between the two B8 S4s. We ran back-to-back, and whilst both cars' power and torque curves looked similar Nick's was down all the way through the range. The last graph here shows the two runs overlaid:


Same MRC stage 2 tune (albeit mine without the S-tronic map for now), same fuel, nearly identical mileage, both cars run back-to-back. Odd one.

[jaygemson]

Here's some photos I took from the day. Full album's here: https://plus.google.com/photos/10183932 ... 9LjhYKn9AE

[SuprSi]

Awesome pics!

[TechNick]

Mine - 445HP (yesterday) vs. 490PS (MRC, few months back) for me, Graham.
473HP was Jay's result yesterday.

There was a fairly significant difference between the two B8 S4s. We ran back-to-back, and whilst both cars' power and torque curves looked similar Nick's was down all the way through the range. The last graph here shows the two runs overlaid:


Same MRC stage 2 tune (albeit mine without the S-tronic map for now), same fuel, nearly identical mileage, both cars run back-to-back. Odd one.

Well, a visit to MRC determined the reason behind the difference... heat.
Basically, no issues could be found - dyno'd at around 490ps again.
Doug then demonstrated the difference some latent heat and lack of charge cooling can make to the figures:

436-493 PS and 525-610 Nm !!

[GrahamS4]

Very interesting. Thanks for sharing that.

[MikeFish]

Nick you car looks mean on the rollers. Honeycomb grille would make it even meaner.

[TechNick]

Nick you car looks mean on the rollers. Honeycomb grille would make it even meaner.

Thanks Mike. Yeah, I'd agree and would be lying if I said I hadn't considered it - just wary of venturing too far into RS4 territory. Keen to differentiate it as a (widebody) S4 rather than an RS4 wannabe. Besides, know from the RS6 how difficult it can be keeping the honeycomb looking its best!

[R1RS4]

Hi Jay,

Some great pic's there, icing on the cake for a great day out until the next one cheeRS