RS rep to RSR rep

[squirdan]

just to finish...i'd be very happy to organise / take part in a DDK bespoke day with someone like Mark Hales or Don Palmer

or I know a few tame racing drivers and we could organise our own track day / tuition session.

for my part have done loads of track days and got a basic race licence but I know I am NOWHERE near as good as I could be on track !!

so totally agree the best way to go faster (and more safely) is usually
1. driver tuition, 2. better brakes, 3. lightness. 4. more power!

cheers Dan

[visualfx]

Hi guys,

My company are sponsoring a driver in the carrera cup again this year and may be able to chip in something.

Just let me know when and I'll see what I can do

No promises



Cheers

Garry

[mrg3.6]

My car is on 11's and 9's and was until recently running ancient Yoko's . Invested last week in a full set of Michelin TB's and had the geometry set up .

An identical 9" / 11" set-up on my wide-body 72t provides enormous amount of lateral grip and more fun than you can poke a stick at - certainly whenever Bob Watson has driven my car he always harps on about it's lightness and how well it handles (I guess he should know) albeit he might just be flattering me in preparation to issuing a large bill

Anyway although the 72t certainly doesn't drive like a 'steam roller' (unlike my 3.6SC) my only frustration during the 3000 mile Eurotour to CLM last year was the power limits of (a very sweet) 220 hp 2.7RS spec (twin plug) engine which really needs another 80 hp to overcome the huge mechanical grip of the TB15's off the line - this short-coming was particularly noticeable on the uphill sections of Alpine switchbacks where with all that rubber the car would naturally want to bog-down off the line.



This irritation could of course be overcome by revving the '???? out of the ????' to make those MFI and the S cams actually earn their living or I could learn to drive her properly



Now with that 300hp RSR spec engine in my car, I would suggest that this minor problem would disappear and Nirvana would be close at hand



So Dan, I would humbly suggest that you start saving for those big Fuchs and a matching set of TB15 - you won't have 'peace of mind' until you do

Martin

[yoda]

Hi

Lovely car and very interesting thread. Out of curiosity, what tyres would people suggest for a 2.7 RS rep on 7 + 8 x 15s? Mainly road use with the odd track day thrown in.

Regards

[rvzz]

I think Martin makes a good point about HP versus wheel/tyre size . There has to be a point at which a wider wheel becomes asset rather than a hindrance , so, at what level of power does that occur ? ( taken as read that a car is properly set up in all other respects ).
My own car has roughly 260 hp from a slightly modded 3.2 ( so says previous owner and it feels about right ) It never feels 'over tyred ' . My only other 911 experience is from my previous 190 hp SC and i can imagine that 11's and 9's with that sort of power would be a real pain .

I used to be involved in the hot rod scene and was about when the 'pro-street' look first became popular. This 'look' involved standard bodywork , i.e. no flares on the rear , very skinny front wheel/tyre with the widest possible rims on narrowed rear axles . Lots of cars where built using fairly asmatic V8's which, although sounded the part, could make no use of the massive wheels/tyres used . Almost without exception these cars drove like absolute dogs .
It was only when you got to into big hp numbers (500+) did this set up make any sense . At the time I was running a fibreglass Willys hot rod with a full round tube chassis , big block Ford motor (built by a chap called Fred Whittle, ex Chevron ) with over 600 hp . The rear wheel size on this car was 15" x 15" running Mickey Thompson semi-slicks . It worked very well .
I know the drag racing reference has no relevance to 911's , just trying to make the point about wheel /tyre size versus HP, ie. to much of one and not enough of the other is just as bad as the other way round.
So sorry for the major thread hijack

Cheers...

[mrg3.6]

My own car has roughly 260 hp from a slightly modded 3.2 ( so says previous owner and it feels about right ) It never feels 'over tyred ' . My only other 911 experience is from my previous 190 hp SC and i can imagine that 11's and 9's with that sort of power would be a real pain.

I would suggest with 260 hp and the additional torque that a 3.2 brings to the party you certainly won't be suffering too much with bigger wheels/tyres

I certainly wouldn't want less than the 220 hp, Mr Watson claims my little 2.7 MFI engine kicks out, but I do know that even with 9"/11" rims the 72 is a whole lot more fun to drive than my 'torque laden' 317 hp SC on regular 7"/8" Fuchs.

Martin

[Mike]

A 'standard' 73 2.8 would give about 280hp, whereas the 'werks' team cars gave 308hp.

[Samu]

Very nice RSR and engine with real 2.8 RSR parts, kind of daydream. Are the front arches real deal or something else?

mrg3.6 and rvzz: What size of TB15 you are running on 9/11"? Is 23/62-15 too narrow for 11" or do you have 29/61-15 on rear? I have set of Fuchs with very old tyres. These are not real deal - I think DP modified Fuchs. I need new set of street tyres someday when my wide body is running again.

[mrg3.6]

Very nice RSR and engine with real 2.8 RSR parts, kind of daydream. Are the front arches real deal or something else?

mrg3.6 and rvzz: What size of TB15 you are running on 9/11"? Is 23/62-15 too narrow for 11" or do you have 29/61-15 on rear? I have set of Fuchs with very old tyres. These are not real deal - I think DP modified Fuchs. I need new set of street tyres someday when my wide body is running again.

9" - 215/55/15 (18/60-15)
11" - 270/45/15 (23/62-15)

Both these tyres came off an earlier set of 8" / 10" Fuchs and fill the rims up nicely, however the 11" will also accomodate a 295/40/15 (26/61-15) TB15 section.

Martin

[rvzz]

I'm running 215/5515 and 295/40/15 ...

[210bhp]

Hi

Lovely car and very interesting thread. Out of curiosity, what tyres would people suggest for a 2.7 RS rep on 7 + 8 x 15s? Mainly road use with the odd track day thrown in.

Regards

You would have to search hard for anything better than Avon cr6zz in the original sizes in my opinion.

Regards
Mike

[brembo]

Very nice RSR and engine with real 2.8 RSR parts, kind of daydream. Are the front arches real deal or something else?

Hi Samu,
Arches are steel,was told they were copied from the "Samson" rsr,but as I mentioned earlier,I'm not completely happy with the finished profile
Regards,

[mrg3.6]

Arches are steel,was told they were copied from the "Samson" rsr,but I'm not completely happy with the finished profile

Interesting comment about the Samson RSR, I also have a set of steel RSR flairs that were modelled on the same car - they originated from the depths of Sussex many years back.

I wonder if they're from the same source and would be interested in knowing more about your problems with the profile?

Thx
Martin

[brembo]

Arches are steel,was told they were copied from the "Samson" rsr,but I'm not completely happy with the finished profile

Interesting comment about the Samson RSR, I also have a set of steel RSR flairs that were modelled on the same car - they originated from the depths of Sussex many years back.

I wonder if they're from the same source and would be interested in knowing more about your problems with the profile?

Thx
Martin

Martin,the photo's show the variation in the profiles,that being said,there also seems to be a slight differences between most of the original rsr's anyway.
And yes,I think my arches came from the same place as the ones you have.

[Gary71]

I prefer the set on your car!