GT4 or modded Cayman R

GT4 or modded Cayman R

Author
Discussion

GT4owner

21,146 posts

265 months

Tuesday 20th January 2015
quotequote all
anonymous said:
[redacted]
what about offering bloody good advice !! the gen one cars are 2005, SVP are doing nothing the Cayman SPec racing boys were doing back 8 years ago, The gen 2 car tuning is NOT the same, why fit a 997 GT3 TB which can flow 450BHP to a 3.4 dfi unit but keep the 4x 400 cell cats in the manifold.
this route worked well on the gen 1 I proved it back in 2008 with a 345BHp car.

the brake booster is the issue on the gen 2 car imo not the MC.

only way to fix the brakes is go for a 6 pot 996 GT3 upgrade imo. (but you need other parts to allow fitment.

If you want raw, the items you should be looking at are Guard diff,s, 996GT3 front calipers and take a look at the JRZ shocks which at least have a Cayman fitment and again are race proven and a light weight Fly, but than can cause other issues.

Car needs Adjustable control arms, it's a massive issue, and you may as well fit engine mounts and rear monoball toe links to aid that feel, and stop rear steer.

car will release no BHP on the R until the manifold is changed out, most maps even with extra's will net you 10bhp on the R as Porsche have already mapped it over stock.

I am trying to help guys, tuning is expensive, you get no money back, there is no need to reinvent the wheel on these cars.

fioran0

2,410 posts

172 months

Tuesday 20th January 2015
quotequote all
GT4owner said:
still be pants, as its a Cayman which is $hit. I have a GT4
And not changing out the rear toe arms !! Rookie move. I dont know why I have them, but just get them on.

just sayin.
the MC imo does nothing but make the pedal travel shorter somehow suspending the rules of science wrt pressure = force/area but confusingly still following volume = area x length.. science, its just a paradigm anyways.

You will go no faster on track until you can dial in some camber. I mean wtf has braking, line, steering, throttle or any of that crap got to do with "faster". $hit, what does "faster" even mean. Its all just new age bull$hit and dont let anyone tell you otherwise. Camber man, thats what the people wont tell you.


You should come and try my Spyder.
Seems totally pointless waste of money.

remember the gen 1 car had tiny cats in the rear section, the Gen 2 flows enough air like 4 cats are in the manifold. MMMMMMeeeeeooowww!

So all in all bad advice from every one on here but me. I drive flat out!

Edited by GT4owner on Monday 19th January 20:50

lemmingjames

7,458 posts

204 months

Tuesday 20th January 2015
quotequote all
GT4owner]You should come and try my Spyder which imo has the right mods for the Gen 2 car before throwing your money down the toilet.[footnote]Edited by GT4owner on Monday 19th January 20:50[/footnote said:
What dates are you offering as still waiting on my invite....

J-P

Original Poster:

4,350 posts

206 months

Tuesday 20th January 2015
quotequote all
fioran0 said:
GT4owner said:
still be pants, as its a Cayman which is $hit. I have a GT4
And not changing out the rear toe arms !! Rookie move. I dont know why I have them, but just get them on.

just sayin.
the MC imo does nothing but make the pedal travel shorter somehow suspending the rules of science wrt pressure = force/area but confusingly still following volume = area x length.. science, its just a paradigm anyways.

You will go no faster on track until you can dial in some camber. I mean wtf has braking, line, steering, throttle or any of that crap got to do with "faster". $hit, what does "faster" even mean. Its all just new age bull$hit and dont let anyone tell you otherwise. Camber man, thats what the people wont tell you.


You should come and try my Spyder.
Seems totally pointless waste of money.

remember the gen 1 car had tiny cats in the rear section, the Gen 2 flows enough air like 4 cats are in the manifold. MMMMMMeeeeeooowww!

So all in all bad advice from every one on here but me. I drive flat out!

Edited by GT4owner on Monday 19th January 20:50
rofl

keep it lit

3,388 posts

167 months

Tuesday 20th January 2015
quotequote all

full blown bafoon alert !!!

fioran0

2,410 posts

172 months

Tuesday 20th January 2015
quotequote all
too funny!
J-P, I meant to ask but did the SVP car run a wider front rim or just the stock size? Getting more tyre up front is something the cayman has been crying out for since it first appeared but its not something I have seen many cars running. Maybe that will all change if the GT4 comes with a 265 front.

GT4owner

21,146 posts

265 months

Tuesday 20th January 2015
quotequote all
fioran0 said:
some trying to be funny st.
If the GT4 has 265 fronts I'll eat your hat.

"Getting more tyre up front is something the cayman has been crying out for since it first appeared "

why do you think this is needed ?

braddo

10,485 posts

188 months

Tuesday 20th January 2015
quotequote all
fioran0 said:
some trying to be very funny st.
laugh

It didn't take long for mr gt4 to give himself away.

J-P

Original Poster:

4,350 posts

206 months

Tuesday 20th January 2015
quotequote all
fioran0 said:
too funny!
J-P, I meant to ask but did the SVP car run a wider front rim or just the stock size? Getting more tyre up front is something the cayman has been crying out for since it first appeared but its not something I have seen many cars running. Maybe that will all change if the GT4 comes with a 265 front.
Didn't have wider front tyres. But did have lightweight wheels and Dunlop sport max, which were actually pretty good considering how cold it was. To be honest I didn't get to try it in anger, combination of unfamiliar roads, which were cold and damp and being very aware that it wasn't my car. However, even at 6 or 7/10ths it felt a lot more sorted than mine.

PorscheGT4

21,146 posts

265 months

Tuesday 20th January 2015
quotequote all
Sports maxx are a normal tyre, I run the Race Maxx on mine, which hate the cold.

http://www.tyrereviews.co.uk/Article/Dunlop-Sport-...



Edited by PorscheGT4 on Tuesday 20th January 17:58

J-P

Original Poster:

4,350 posts

206 months

Tuesday 20th January 2015
quotequote all
PorscheGT4 said:
Sports maxx are a normal tyre, I run the Race Maxx on mine, which hate the cold.

http://www.tyrereviews.co.uk/Article/Dunlop-Sport-...



Edited by PorscheGT4 on Tuesday 20th January 17:58
Thanks. Mr D why do you keep changing your handle? It's bizarre, we all know it's you!

ETA - tread pattern in those pics looks different to the SVP car, so god knows what tyres it was running!

Edited by J-P on Tuesday 20th January 19:03

Slippydiff

14,834 posts

223 months

Tuesday 20th January 2015
quotequote all
J-P said:
Didn't have wider front tyres. But did have lightweight wheels and Dunlop sport max, which were actually pretty good considering how cold it was. To be honest I didn't get to try it in anger, combination of unfamiliar roads, which were cold and damp and being very aware that it wasn't my car. However, even at 6 or 7/10ths it felt a lot more sorted than mine.
Awww. J-P you should've said, there's a great section of road 3-4 minutes from Doms place that's a superb test route. Good corners, undulating and plenty of room to get lairy in some sections. The car you drove yesterday has been down it quite quickly previously .......... wink

biggrin

PR36

341 posts

116 months

Tuesday 20th January 2015
quotequote all
I had the magazine article on the svp cayman and have been on their site many times but i must admit I wasnt convinced based on months of reading what guys in the states were doing. Why the exhaust and map but no TB, Plenum etc, impression was given of running sticky tyres but with no corresponding oiling mods on a gen 1 car which is such a no no even porsche themselves mention it in the owners manual. Also it looked like fixed buckets and harnesses could be specced but with no rollover protection. Do you really need brake bias on a road car, custom shocks and diff? Just things like this put me off but happy to be told I'm completely wrong.

J-P

Original Poster:

4,350 posts

206 months

Tuesday 20th January 2015
quotequote all
Slippydiff said:
J-P said:
Didn't have wider front tyres. But did have lightweight wheels and Dunlop sport max, which were actually pretty good considering how cold it was. To be honest I didn't get to try it in anger, combination of unfamiliar roads, which were cold and damp and being very aware that it wasn't my car. However, even at 6 or 7/10ths it felt a lot more sorted than mine.
Awww. J-P you should've said, there's a great section of road 3-4 minutes from Doms place that's a superb test route. Good corners, undulating and plenty of room to get lairy in some sections. The car you drove yesterday has been down it quite quickly previously .......... wink

biggrin
Oh I found some lovely roads, great visibility, but the sheer fact that I don't know them made for somewhat less "progress" than I'd have liked. Still had fun though and gave the car enough of a stretch to get a sense that it will definitely work for me. Pleased I took the time to try it out! smile

J-P

Original Poster:

4,350 posts

206 months

Wednesday 21st January 2015
quotequote all
anonymous said:
[redacted]
PR36, you need to go and see them. As I alluded to in my earlier post, they can do pretty much anything, supercharge the engine increase to 3.9l, dry sump the engine, add lightweight body parts, build full aero kit, install a full cage and seam weld if required. The world's your oyster, you can have whatever you want. The attraction for me is that unlike most specialists, they have chosen to use the Cayman as their main development platform. Yes they do loads of stuff for 911s, but they've set out their stall as a Cayman modifier and they have plenty of customers racing caymans to test their parts on. The quality of some of the parts that they have fabricated is beyond reproach. I was very impressed with their professionalism. Dom knows what he's doing, he's totally confident of his skills and that you'd be hard pressed to try his car and not like it. IMHO, he's right, his development car is exceptionally good to drive, just don't get the race cats!

PorscheGT4

21,146 posts

265 months

Wednesday 21st January 2015
quotequote all
anonymous said:
[redacted]
I would question it yes, I have seen many a Cayman Gen 1 blowing tons of smoke out the back on a track day.

Not only does it need something they also need the motorsport air to oil separator,(hence the smoke out the back) I can't believe for 1 minute the SVP race cars are stock in this dept other wise every bend you would be pushing a oil cloud of smoke.

so not only have I seen it for real on track days, there is too much on the net about it also.

"If you drive your Boxster/Cayman on a track, certain conditions can cause a serious engine failure. High engine RPM's during high speed turns will cause engine oil ingestion. This situation will be further aggravated if race tires are being used.

Ingestion occurs when the air/oil separator is overwhelmed from the conditions mentioned, and oil is forced into an air ventilation hose. The result, oil is sent into the air manifold, which feeds oil into the engine cylinders. This causes extreme smoke from the exhaust, unusual back-fire type sounds, and can cause damage to the engine. "

as for only 1 oil pick up point, this is another issue, but the Air Oil Separator is a REAL issue, as I have said I have seen it on cars at Bedford !!
I would say their own engine are built with the motorsport parts, but punters cars need mods to go on track with stock engines.
as the Air Oil Separator is a factory part Porsche must have know about tracking issues.

Edited by PorscheGT4 on Wednesday 21st January 19:37

PR36

341 posts

116 months

Wednesday 21st January 2015
quotequote all
J-P said:
PR36, you need to go and see them. As I alluded to in my earlier post, they can do pretty much anything, supercharge the engine increase to 3.9l, dry sump the engine, add lightweight body parts, build full aero kit, install a full cage and seam weld if required. The world's your oyster, you can have whatever you want. The attraction for me is that unlike most specialists, they have chosen to use the Cayman as their main development platform. Yes they do loads of stuff for 911s, but they've set out their stall as a Cayman modifier and they have plenty of customers racing caymans to test their parts on. The quality of some of the parts that they have fabricated is beyond reproach. I was very impressed with their professionalism. Dom knows what he's doing, he's totally confident of his skills and that you'd be hard pressed to try his car and not like it. IMHO, he's right, his development car is exceptionally good to drive, just don't get the race cats!
Fair enough, totally get what you are saying. In fact i half suspected the issue is not what they can or can't do but actually they just haven't presented it in the mag and on the site in the best way. To me its common sense that you would run rollover protection if you have fixed buckets and harnesses otherwise its your bonce that becomes the roll bar. As for the oiling mods, svp sell a number of mods on their site, scavenge pump and sump etc so i strongly 'suspect' their race cars do in fact have this in them but their seems no mention of it in the car package they offer. In fact if you go on the site it isnt clear whether the list of parts under the 'cayman svp package' is everything you are getting or just a summary. Considering its £12k for the package i would like to see the whole list if I'm going to be forking out that much dough!

fioran0

2,410 posts

172 months

Wednesday 21st January 2015
quotequote all
Be wary of assuming anything about their engines and whether or not they are stock. If you race, what you can do is usually tightly controlled by regulations and in most cases this translates into not much at all of anything is allowed. A race car with no where to race is useless so you may often be quite surprised to see whats not on them after being built for a specific series. A street car and track day types have way more freedom thats for sure.
The classes where you can run what you bring are rare, and the cars that run in this tend to not be heated up caymans. Ive seen a couple of "caymans" run in open classes. They were space frame builds with some carbon fiber cayman looking panels hung on top and all sorts of engines (LS7 units usually but not the factory cayman one thats for sure).

The twin chamber air/oil separator works by simply having a second chamber as an overspill for the first creating more volume capacity. The regular separator can end up with too much oil in it under some track conditions (high g load turns) and this then returns to the intake and is blown out as a puff of smoke. From memory its as much about the drain side of the system under loading becoming slow rather than an increase in oil blown up but its been a long time since I looked at an M9X engine so I may be misremembering here. By fitting the twin chamber version, the larger capacity gives some extra oil capacity to provide a buffer for the few seconds where its needed.

I used to wonder about the source of the "motorsports" tag used on that twin chamber AOS. Obviously its not something that was developed for or from the Cups etc given that they are dry sump engine. The only thing I could think of from an actual motorsport series would be the koni/continental challenge series stuff that ran Carreras (996 and 997) and I wonder if it was made for that. It seems like its probably more likely to have come out of some X51 stuff - but who knows.

I built a full on race M96 engine way back purely to see what it would be like/capable of. I will post some stuff up about it later in light of the way this thread is going.

J-P

Original Poster:

4,350 posts

206 months

Wednesday 21st January 2015
quotequote all
fioran0 said:
Be wary of assuming anything about their engines and whether or not they are stock. If you race, what you can do is usually tightly controlled by regulations and in most cases this translates into not much at all of anything is allowed. A race car with no where to race is useless so you may often be quite surprised to see whats not on them after being built for a specific series. A street car and track day types have way more freedom thats for sure.
The classes where you can run what you bring are rare, and the cars that run in this tend to not be heated up caymans. Ive seen a couple of "caymans" run in open classes. They were space frame builds with some carbon fiber cayman looking panels hung on top and all sorts of engines (LS7 units usually but not the factory cayman one thats for sure).

The twin chamber air/oil separator works by simply having a second chamber as an overspill for the first creating more volume capacity. The regular separator can end up with too much oil in it under some track conditions (high g load turns) and this then returns to the intake and is blown out as a puff of smoke. From memory its as much about the drain side of the system under loading becoming slow rather than an increase in oil blown up but its been a long time since I looked at an M9X engine so I may be misremembering here. By fitting the twin chamber version, the larger capacity gives some extra oil capacity to provide a buffer for the few seconds where its needed.

I used to wonder about the source of the "motorsports" tag used on that twin chamber AOS. Obviously its not something that was developed for or from the Cups etc given that they are dry sump engine. The only thing I could think of from an actual motorsport series would be the koni/continental challenge series stuff that ran Carreras (996 and 997) and I wonder if it was made for that. It seems like its probably more likely to have come out of some X51 stuff - but who knows.

I built a full on race M96 engine way back purely to see what it would be like/capable of. I will post some stuff up about it later in light of the way this thread is going.
Looking forward to seeing that. Completely get what you're saying about race cars. SVP had a Cayman shell with roll cage. They said that the only reason they hadn't seam welded the cage in was because that would invalidate it for one of the championships in which their customers race.

J-P

Original Poster:

4,350 posts

206 months

Wednesday 21st January 2015
quotequote all
PR36 said:
J-P said:
PR36, you need to go and see them. As I alluded to in my earlier post, they can do pretty much anything, supercharge the engine increase to 3.9l, dry sump the engine, add lightweight body parts, build full aero kit, install a full cage and seam weld if required. The world's your oyster, you can have whatever you want. The attraction for me is that unlike most specialists, they have chosen to use the Cayman as their main development platform. Yes they do loads of stuff for 911s, but they've set out their stall as a Cayman modifier and they have plenty of customers racing caymans to test their parts on. The quality of some of the parts that they have fabricated is beyond reproach. I was very impressed with their professionalism. Dom knows what he's doing, he's totally confident of his skills and that you'd be hard pressed to try his car and not like it. IMHO, he's right, his development car is exceptionally good to drive, just don't get the race cats!
Fair enough, totally get what you are saying. In fact i half suspected the issue is not what they can or can't do but actually they just haven't presented it in the mag and on the site in the best way. To me its common sense that you would run rollover protection if you have fixed buckets and harnesses otherwise its your bonce that becomes the roll bar. As for the oiling mods, svp sell a number of mods on their site, scavenge pump and sump etc so i strongly 'suspect' their race cars do in fact have this in them but their seems no mention of it in the car package they offer. In fact if you go on the site it isnt clear whether the list of parts under the 'cayman svp package' is everything you are getting or just a summary. Considering its £12k for the package i would like to see the whole list if I'm going to be forking out that much dough!
It's a very good point PR36, which is why I think it's worth going to see them. What SVP is saying is basically, here's an off the shelf package, which we can do for you and it will cost £12k all in. However, if you went to see them and said I want dry sump, 30hp, rose jointed suspension, GT3 MC, cage, harness bar and harnesses, cup cables and some RSS bits, then that's exactly what you'd get. You want ohlins? They'll fit those too if you want but they'll do and price exactly what you want. The advantage of their rolling test bed, is that you can get a sense of whether by and large they know what you'd want from the car and I have to say it's a good marketing tool.