Cayman R Chat

Cayman R Chat

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Discussion

boxsey

3,506 posts

176 months

Tuesday 15th March 2016
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ajondyh said:
I'm trying to do Anglesey too, but not sure yet. You could do with some track wheels and tyres as Anglesey will kill your normal road tyres, it's very abrasive.
You read my mind Andy! I logged on here specifically this morning to ask what CR owners are doing regarding tyres and brakes for track. I always used R compound tyres on the 964 for track work.

I'm thinking of getting a set of 18s to put tyres on. I was aiming to use Michelin super sports for track but it looks like I would need 19s to fit those. I think I can get Michelin cup 2 in 18 inch fitment though.

And what about brakes? Stick to standard pads or something more track focused?


Edited by boxsey on Tuesday 15th March 15:26

ajondyh

588 posts

90 months

Tuesday 15th March 2016
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I use PSS in 19" on OZ ultraleggero wheels. The PSS wear incredibly well and are not a bad track tyre either.

Brakes will need attention if you are going to push it. This is what I have done and it is spot on for track and road.

Mintex M1166 pads all round
Titanium heat shields
GT3 Master Cyl
GT2 brake ducts front
Castrol SRF fluid
Remove wear sensors as they melt (You can make a loop with old ones to keep wear light off)

Everyone will have their own preferences but this is what I use and it works for me wink

J-P

Original Poster:

3,914 posts

172 months

Tuesday 15th March 2016
quotequote all
The brakes are the one weak area of the R for track work IMHO.

Mine has Pagid Rs29s, braided hose, GT3MC, GT3 brake ducts, Castrol SRF.

Tyre wise, I'm going to go for MPSC2.

ian964

532 posts

218 months

Tuesday 15th March 2016
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I ran mine pretty much as standard on Friday at Oulton (though it has the GT3 brake ducts, PF brake fluid and MPSS tyres) - brakes were the biggest issue. Pedal travel feels very long and soft compared to the 964; the brakes work fine but are not confidence inspiring. The GT3 master cylinder should help a lot with this - bigger diameter means shorter stroke and a bit more force required, which is what I like. My pads were already fairly worn and didn't last the full day, however I'm going to fit RS29s all round (again what I used on the 964).

Dan911

2,546 posts

174 months

Tuesday 15th March 2016
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I have a GT3 master Cylinder wait to be fitted. Is it a DIY or should 9E fit it for me?

Thanks

Porsche911R

21,146 posts

231 months

Tuesday 15th March 2016
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fit 996 GT3 hubs and Calipers+ 350mm disks, it's the only way, or find a PCCB car.

Any thing else is just playing at it really.

boxsey

3,506 posts

176 months

Tuesday 15th March 2016
quotequote all
Good to see that the chatting has now replaced the mud slinging! smile

In no particular order to the replies above.

Andy, yes loop out plugs for the wear sensors is something I'm used to from the 964 days.

Ian, I think the longer pedal is something we just have to get used to...we were spoiled with solid pedal on the 964, especially the one on your cup.

GT3 or GT2 ducts are they different? Anyone got part numbers?

RS29 pads do the squeal as much on the road as I think they do? I liked the Brembo HP2000 for a good compromise between road and track but maybe the Mintex suggestion might be worth a try.

Tyres - I used to run Toyo R888 but I want a tyre that will perform better in the wet. Although the Michelin Cup 2 is an improvement over the Cup 1 I'm not sure that it's a good tyre in the wet. That makes supersport the favourite but will have to go on the existing 19s or get some of the Oz 19s as a track only set. The other option is a set of used Cayman 18 inch wheels and put Yokohama AD08Rs on them - I think the tyre options are 235/40 18 front and 255/40 18 rear?


boxsey

3,506 posts

176 months

Tuesday 15th March 2016
quotequote all
Porsche911R said:
fit 996 GT3 hubs and Calipers+ 350mm disks, it's the only way, or find a PCCB car.

Any thing else is just playing at it really.
That's too much modifying for me D. Might have done it if I'd bought an S instead of an R. The aim for me with the R is to keep it close to standard and just enjoy it for what it is. Which I think is great so far! I've no intention of pushing it and me to the limit on trackdays.

Porsche911R

21,146 posts

231 months

Tuesday 15th March 2016
quotequote all
boxsey said:
That's too much modifying for me D. Might have done it if I'd bought an S instead of an R. The aim for me with the R is to keep it close to standard and just enjoy it for what it is. Which I think is great so far! I've no intention of pushing it and me to the limit on trackdays.
PSS, RS 29 pads, max camber at about -1.2 on top mounts, with GT3 ducts which are pence over GT2 ducts which are bigger money and to low to the ground imo.

that's all I did to my R and it was a great daily.

ajondyh

588 posts

90 months

Tuesday 15th March 2016
quotequote all
boxsey said:
Good to see that the chatting has now replaced the mud slinging! smile

In no particular order to the replies above.

Andy, yes loop out plugs for the wear sensors is something I'm used to from the 964 days.

Ian, I think the longer pedal is something we just have to get used to...we were spoiled with solid pedal on the 964, especially the one on your cup.

GT3 or GT2 ducts are they different? Anyone got part numbers?

RS29 pads do the squeal as much on the road as I think they do? I liked the Brembo HP2000 for a good compromise between road and track but maybe the Mintex suggestion might be worth a try.

Tyres - I used to run Toyo R888 but I want a tyre that will perform better in the wet. Although the Michelin Cup 2 is an improvement over the Cup 1 I'm not sure that it's a good tyre in the wet. That makes supersport the favourite but will have to go on the existing 19s or get some of the Oz 19s as a track only set. The other option is a set of used Cayman 18 inch wheels and put Yokohama AD08Rs on them - I think the tyre options are 235/40 18 front and 255/40 18 rear?
GT2 ducts are much bigger and far more effective but cost an arm and a leg. However I've had mine on for 3 1/2 years and never caught them on anything.



Also the GT3 master cyl gives you a solid pedal which is the reason for fitting it for me. Toyo R888 are great in the wet but I found they were VERY noisy on the R and not suitable for anything other than on track. I found the PSS a good all rounder especially if you want to drive to European track days. If you want to go all out on the standard brakes you can get Bigger Girodiscs and spacers for the calipers to accommodate them wink

Porsche911R

21,146 posts

231 months

Tuesday 15th March 2016
quotequote all
the top one is NOT a GT3 duct , just a standard one. Also a MC cannot give a solid feel to it, it can give a shorter pedal travel which is harder to press, but you don't get a hard end point due to a MC switch. You also get no extra brake performance.
A lot of people like a harder pedal though, but it's not a fix and in fact a shorter pedal makes for harder H&T imo, the longer travel makes H&T very easy in the R as the pedals line up.

I found air was an issue in the outtor caliper bleed nipple, so regular bleeds BOTH sides of the calipers did wonders to the feel of the brakes.
I guess most people who fit a MC do a full bleed, new fluid, and race pad change, so are swayed on the MC fitment, ;-) but the performance feel comes from the fluid , pads and full bleed.
A MC does ONLY give a shorter pedal movement nothing else.

the GT3 ducts are big enough imo and cost about £25 I think for the pair , as I say very cheap the GT2's are >£200 maybe even £300 or some thing daft so not worth the extra spend again imo.

these are GT3 ducts, and a much bigger flow over R oem ones.



Edited by Porsche911R on Tuesday 15th March 16:44

boxsey

3,506 posts

176 months

Tuesday 15th March 2016
quotequote all
I'd guessed from Andy's pic that he was showing his old duct next to the new GT2 version. I've done some hunting and found the part numbers for the GT3 versions. Here they are for anyone that needs them:

Left: 99734148392
Right: 99734148492

About £25 each rather than for the pair.

ajondyh

588 posts

90 months

Tuesday 15th March 2016
quotequote all
Porsche911R said:
the top one is NOT a GT3 duct , just a standard one. Also a MC cannot give a solid feel to it, it can give a shorter pedal travel which is harder to press, but you don't get a hard end point due to a MC switch. You also get no extra brake performance.
A lot of people like a harder pedal though, but it's not a fix and in fact a shorter pedal makes for harder H&T imo, the longer travel makes H&T very easy in the R as the pedals line up.

I found air was an issue in the outtor caliper bleed nipple, so regular bleeds BOTH sides of the calipers did wonders to the feel of the brakes.
I guess most people who fit a MC do a full bleed, new fluid, and race pad change, so are swayed on the MC fitment, ;-) but the performance feel comes from the fluid , pads and full bleed.
A MC does ONLY give a shorter pedal movement nothing else.

the GT3 ducts are big enough imo and cost about £25 I think for the pair , as I say very cheap the GT2's are >£200 maybe even £300 or some thing daft so not worth the extra spend again imo.

these are GT3 ducts, and a much bigger flow over R oem ones.



Edited by Porsche911R on Tuesday 15th March 16:44
Oh heck hear we go again banghead The brake pedal with GT3 MC suits me and can heel and toe perfectly well imo. I have always regularly bled brakes and well know how to do it properly imo wink

GT3 ducts may be cheap, but are hardly worth the effort of fitting for the difference in size imo tongue out

My brakes are perfect for me which is all I was saying. imo

boxsey

3,506 posts

176 months

Tuesday 15th March 2016
quotequote all
Forgot to say that I'm not too worried about the feel of the pedal for H&T in mine. hehe

ajondyh

588 posts

90 months

Tuesday 15th March 2016
quotequote all
boxsey said:
I'd guessed from Andy's pic that he was showing his old duct next to the new GT2 version.
Correct biggrin

Porsche911R

21,146 posts

231 months

Tuesday 15th March 2016
quotequote all
ajondyh said:
Correct biggrin
to be fair steve did ask "GT3 or GT2 ducts are they different? Anyone got part numbers"

to which you replied with a pic of oem ducts vs GT2 ducts !and said "GT2 ducts are much bigger and far more effective " !

hence my GT3 duct post to put things in context and answer the question and show the size :-)

edc

8,319 posts

217 months

Tuesday 15th March 2016
quotequote all
I've seen recently that the 997 GT3 ducts are as little as £5 each. Bought mine when they were a little more expensive.

jayxx83

405 posts

162 months

Tuesday 15th March 2016
quotequote all
I enquired about having a gt3 mc fitted. 9e told me not to bother as it can upset the brake balance. I guess unless you were doing the discs and calipers to match all around it would make sense.

ajondyh

588 posts

90 months

Wednesday 16th March 2016
quotequote all
jayxx83 said:
I enquired about having a gt3 mc fitted. 9e told me not to bother as it can upset the brake balance.
It doesn't wink

Dan911

2,546 posts

174 months

Wednesday 16th March 2016
quotequote all
ajondyh said:
jayxx83 said:
I enquired about having a gt3 mc fitted. 9e told me not to bother as it can upset the brake balance.
It doesn't wink
Hopefully not!

or I'll wait to get mine fitted with new brakes at the same time.