Our day at Cadwell ...

Organise and discuss trackdays and meets
PJC
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Re: Our day at Cadwell ...

Post by PJC » Wed Jul 11, 2012 6:18 pm

Great pics and vid, roll on Spa.

HYFR
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Re: Our day at Cadwell ...

Post by HYFR » Wed Jul 11, 2012 6:42 pm

W8PMC wrote:Looks like you had fun:)

Phil, regarding the R8 vs GT-R question, was the R8 quicker in the corners? Never went head to head with an R8 on track other than straight line.
whilst I wasnt a driver of either, I was a passenger

IMHO, the R8 was quicker, the chassis felt more balance and had more grip

in the GT-R I could feel, as a passenger, the rear tyres scrubbing aka close to oversteering, so much so it prompted me to ask Phil was the rear bias was on these as all I knew were they were 4WD, Phil then told me they are RWD when cornering, and so this made sense as it didnt have abit of front wheel bite to pull it through

the R8 on the same corners just had so much more grip and so just monstered through the corners ...

lets not get this twisted thou, the GT-R was / is FECKING quick, and more than a match for a V10 R8 .... but based on 1 PAX in each, that was my assessment - but bear in mind im no expert

also, im not sure Nige and Phil really had a good head to head .... the only time I saw them together was when me and Nige had been out on our cool down lap on our last session of the day ... we were about to pull in, when Phil went past .... my tyres were 80c so I had to go in, but I think Nige saw the GT-R and though time for a play, and so when off in chase ... BUT, the numpty Nige had turned his Mag Ride off, Sport gearbox off and Sport ESP off, and in the heat of the moment didnt realise at all ... I dont know how they go on as I had pulled in, but I think its fair to say vs. the gizmo's in the GT-R it wouldnt have helped ! LOL

:beerchug:

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Nudenut
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Re: Our day at Cadwell ...

Post by Nudenut » Wed Jul 11, 2012 7:00 pm

IMHO I was quite a bit quicker, on the only lap we were out together (my coming in lap as DK says with Mag Ride and Sport OFF :roll: ) I could place the R8 wherever on the track I wanted behind Phil and braking points were considerably shorter but hey... not a willy waving comp, we had a great day, the tuned GTR is quick for sure but the R8 should be quicker it's 2x the cost of the GTR!!

Lets see how we get on at Spa, but if dry I'll have track tyres on which is another level and not entirely fair :wink: :kissmyrings:
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Re: Our day at Cadwell ...

Post by Trups » Thu Jul 12, 2012 9:14 pm

Some Great pictures there lads. nice write up DK.
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Re: Our day at Cadwell ...

Post by sonny » Thu Jul 12, 2012 9:43 pm

Nudenut wrote:http://www.youtube.com/watch?v=8j4rWaCSnZA

Nice and sideways over the mountain for the crowd at 5:40ish LOL
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W8PMC
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Re: Our day at Cadwell ...

Post by W8PMC » Fri Jul 13, 2012 10:23 am

Interesting :bigblink:

I'll blame Phil then & the R8 advantage must have been the Ceramics (i heard Phil wasn't brimming with confidence in his brakes as they'd glazed).

Always nice to have a play & i wish you'd both had more vs. but i've often found the cars i want to play with are never on track when i am :( Although always fun when good scalps can be taken.

On paper, the GT-R should have reigned, but of course that never takes weather or traffic conditions into account & on paper both are stock.

http://www.fastestlaps.com/cars/audi_r8_v10_52_fsi.html

http://www.fastestlaps.com/cars/nissan_gt-r.html (MK1 Stock with 475bhp)
http://www.fastestlaps.com/cars/nissan_gt-r_mk_iii.html (MK3 Stock with 542bhp)
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Nudenut
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Re: Our day at Cadwell ...

Post by Nudenut » Fri Jul 13, 2012 11:22 am

It wasn't close enough to worry about weather or traffic :wink:

I went against a Litchfield tuned GT-R at Silverstone for many many laps playing in the wet and he couldn't get near me in the corners either, talking to the guy he said he couldn't get near my turn in speed either and part blamed the tyres saying it's restrictive on what you can put on them, I'm running Michelin Pilot Super Sports and admit they are very good, on my wider 305/19 888's it's another level again.

On the straight we were neck and neck he said he was running 640ish.

As for the fast laps stuff remember my car isn't standard, have more power and less weight, sprung and unsprung.
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Re: Our day at Cadwell ...

Post by Nudenut » Fri Jul 13, 2012 11:33 am

Closer to this http://www.fastestlaps.com/cars/audi_r8_gt.html maybe faster, need to VBox it when dry out for 5mins! :roll:
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W8PMC
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Re: Our day at Cadwell ...

Post by W8PMC » Fri Jul 13, 2012 12:06 pm

Didn't realise it was modified any further than the Zorst.

Never ran mine against a V10 R8 on track, only a V8 & that was very one sided :bigblink: Did run head to head in a straight line against a V10 & this again was quite one sided, however it was a stock V10 (other than aftermarket zorst).

Agree they're restrictive on Tyres as really need to be running RF on a GT-R. After hearing the feedback, it does sound as though brakes were the biggest issue as cornering should not have seen a big difference between the 2, but with Ceramics & the extra level of confidence they'd offer it would be fair to say that could offer up the difference.

Itching to get back in one (maybe next year) :boots:
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Nudenut
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Re: Our day at Cadwell ...

Post by Nudenut » Fri Jul 13, 2012 9:37 pm

W8PMC wrote:
it does sound as though brakes were the biggest issue as cornering should not have seen a big difference between the 2, but with Ceramics & the extra level of confidence they'd offer it would be fair to say that could offer up the difference.

Itching to get back in one (maybe next year) :boots:
The R8 stops very quickly, there's a braking distance chart on line somewhere, it rates very high in the league.

Why do you think the GT-R should corner comparatively?

Have to say though it's a great car for those with a young family, as Phil said it ticks all the boxes regarding 2+2 seating with track pedigree when needed.
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W8PMC
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Re: Our day at Cadwell ...

Post by W8PMC » Sun Jul 15, 2012 5:43 pm

I've only ever driven a stock V10 & slightly modified V8 & i found them both very similar as regards cornering. The V10 was alot quicker in a straight line & did feel a tad more balanced, but was only marginal. I'm no expert on R8's, but assumed the Quattro setup was very similar if not identical to the B7 RS4 as apart from the engine location & dry sump, the V8 R8 is one & the same (mechanically).

Again, i never had the pleasure of taking an R8 V10 on track, just fast backroads. I did however take a V8 R8 (S-Tronic) on track & of course my GT-R a few times, however i found that the GT-R had better traction into, through & exiting a corner & that's right on the limits (still recall Phil's face when playing with Swiss Tony in his GT3 RS at Cadwell). The OEM brakes on a GT-R do not inspire confidence after a few laps, but mine had aftermarket rotors & Pagid RS29's (still no match for Ceramics).

Using the R8 GT as a benchmark car, the original GT-R is shown as marginally quicker on a couple of tracks & marginally slower on a couple of others, however thats with stock power of 472bhp & stock components.
If you raise the power to 542bhp & use the current 2012 model GT-R then the gap is even bigger.

Love the R8 & tbh the V10 is the only one i'd consider, but i was surprised when you said your R8 had advantage over the GT-R as my findings had been a little different. Saying that, it's fair to say that Ceramic brakes on a track would give significant advantage on any car :D
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Re: Our day at Cadwell ...

Post by HYFR » Sun Jul 15, 2012 10:34 pm

The R€ quattro is different to the RS 4

It drives as a RWD car but will send some power to the fronts when needed

Like the opposite of a Haldex in an S3 or TT for examplE

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Re: Our day at Cadwell ...

Post by W8PMC » Mon Jul 16, 2012 4:40 pm

How is it different?

The B7 RS4 was RWD biais (can't recall the %age though) & this was the 1st of it's type for Audi. I thought the R8 used the same system, albeit i guess the software could have been altered to allow more drive to the rear wheels. Is drive to the front wheels disengaged under certain conditions on the R8?

Not sure on the Quattro differences between the V8 & V10 R8's, but the V8 felt no different to the RS4, although overall balance was better due to lower CoG & mid engine layout.
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Re: Our day at Cadwell ...

Post by HYFR » Mon Jul 16, 2012 4:56 pm

W8PMC wrote:How is it different?
erm, B7 was up to 60:40

R8 is up to 90:10 IIRC

and after owning both, they drove VERY VERY VERY different, as in night and day, and this was apparent on my very first drive home in the R8

dude, lighten up ... you're in danger of coming across as abit of a GT-R fanboy

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Re: Our day at Cadwell ...

Post by bam_bam » Mon Jul 16, 2012 5:30 pm

I'm going out on a limb to say the B7 RS is 40/60 - the R8 V10 was meant to be 15/85 by default or a 30/70 maximum. The central diff is listed as viscus coupling so not sure if it's quattro, more 'like' Haldex in a MR setup.

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This video shows nothing happening at the front wheels on a AWD dyno... much like a Haldex (quattro).
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