My Caymans S 341BHp and 300Ft/lbs Torque.

My Caymans S 341BHp and 300Ft/lbs Torque.

Author
Discussion

jackal

11,248 posts

283 months

Wednesday 6th May 2009
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dom9

8,095 posts

210 months

Wednesday 6th May 2009
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Jack, you seem to have posted a picture of an air cooled car on this thread...

No beards please. Move along. Nothing to see here!

This is for water cooled engines only wink

So, will there be a shoot out anytime soon, so we can all take a look? Might be nice to get a comparison on a RR Vs. standard cars, 3.4 996's etc etc I would also like to take a look at the inlet setup etc.

mrdemon

Original Poster:

21,146 posts

266 months

Wednesday 6th May 2009
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I thought Richard was buying that GT2 for my 40th B-day
No other reason to post a 150k+ 15 year old car on a Cayman 25k tuning thread.

Bone_Head

22 posts

180 months

Wednesday 6th May 2009
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Hi - in a similar position to Demon - gone from Exige to a Cayman and looking at mods. Do you have any contact details to have some similar mods done to my Cayman S - where to get the remap and the throttle bodies, etc.? (have been looking at the Autofarm mods but these seem better). Cheers.

dom9

8,095 posts

210 months

Wednesday 6th May 2009
quotequote all
Bone_Head said:
Hi - in a similar position to Demon - gone from Exige to a Cayman and looking at mods. Do you have any contact details to have some similar mods done to my Cayman S - where to get the remap and the throttle bodies, etc.? (have been looking at the Autofarm mods but these seem better). Cheers.
This is an interesting point actually... The Autofarm 3.7 engine makes just shy of 100bhp/ litre. MrD, your car makes just over 100bhp/litre, so, similar outputs. However, Autofarm had to use custom induction, exhaust, mapping, CAPACITY & CAMS to get there.

Clearly, if they had just upped the capacity (even though their heads should now flow better as the increase in bore will have unshrouded the inlet valves) and achieved a similar bhp/litre figure as you, then it would seem plausible that is could be done on the smaller capacity. The fact that they have to change the cams and claim a lot less power than you with the standard cams on the LARGER capacity is interesting.

Again, I am not trying to put you down or do you a diservice, but where I struggle with all this is that your 3.4 engine appears to produce as much power/ litre as the Autofarm engine with everything optimised including cams and (one assumes) compression ratio.

Now, as pointed out helpfully earlier, I am not a (professional wink ) Porsche engine tuner, but Autofarm are and they specialise in Cayman tuning and when I spoke with Robin up there, he seemed to more than know his onions! smile

However, he did say the Cayman induction was a LOT less restrictive and therefore better than the 996 3.4 induction, hence why that is a better place to start to tune. in fact, I was under the impression that the detail between the M96 996 and Cayman engine was quite significant, hence it may not be 'fair' for me to compare everything.

mrdemon

Original Poster:

21,146 posts

266 months

Wednesday 6th May 2009
quotequote all
AUtofarm are not specialise in Cayman tuning, it's a new opening for them from doing pre 84 cars.

the car they have done is not even there own, its a customers car with the engine mods done.
Most parts they fit are are tried and tested parts which the USA have been using or parts supplied by Alan like the sump kit and Diff.

I doubt they have even done a remap on a Cayman yet.

The softronic kit just works with other mods some cars are over 390Bhp Karels is 360Bhp+ and he has another rad in the front to aid cooling.

the kit is not on softronics web site but pm me if you want to know more about it, it's tried and tested on more than 100 cars i would guess and growing here in the UK also.

Any Porsche owner is welcome to go out in my car btw just mail me.

Edited by mrdemon on Wednesday 6th May 11:50

Bone_Head

22 posts

180 months

Wednesday 6th May 2009
quotequote all
I’m interested in this thread from a point of view of going faster on track days – a point that backs nicely into the GT3 aspect of this. I’ve had a 211 and a couple of Exiges and got the Cayman as an experiment after driving one and realising just how beautiful the balance is – better than the Exige IMHO. I have a racing licence but, as I get older I find it far more convenient to just turn up for track days.

I was at Donington on a LOT day a couple of weeks ago and I took my totally stock Cayman S (no PASM, standard brakes and pads and all the luxuries). I found I was running 1.26s (once I’d sorted my tyre pressures) on a dry track in good conditions. Also out on the day were two well driven 996 GT3 RS cars. They were putting in fairly consistent 1.22s (fastest was a 211 at 1.20s).

With that in mind and with a PASM Cayman S with the mods that mrdemon is talking about and perhaps an LSD and racing pads / braided lines (plus maybe an uprated spring set up), I reckon that 4 seconds a lap to get to the GT3 RS times is entirely possible. Which such mods costing around £5k (all in) on the Cayman it shows the potential in the car and does beg the question: why spend all that extra money on a GT3?! I suppose the only fly in the ointment could be reliability under track conditions?

TOENHEEL

4,501 posts

228 months

Wednesday 6th May 2009
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Bone_Head said:
I’m interested in this thread from a point of view of going faster on track days – a point that backs nicely into the GT3 aspect of this. I’ve had a 211 and a couple of Exiges and got the Cayman as an experiment after driving one and realising just how beautiful the balance is – better than the Exige IMHO. I have a racing licence but, as I get older I find it far more convenient to just turn up for track days.

I was at Donington on a LOT day a couple of weeks ago and I took my totally stock Cayman S (no PASM, standard brakes and pads and all the luxuries). I found I was running 1.26s (once I’d sorted my tyre pressures) on a dry track in good conditions. Also out on the day were two well driven 996 GT3 RS cars. They were putting in fairly consistent 1.22s (fastest was a 211 at 1.20s).

With that in mind and with a PASM Cayman S with the mods that mrdemon is talking about and perhaps an LSD and racing pads / braided lines (plus maybe an uprated spring set up), I reckon that 4 seconds a lap to get to the GT3 RS times is entirely possible. Which such mods costing around £5k (all in) on the Cayman it shows the potential in the car and does beg the question: why spend all that extra money on a GT3?! I suppose the only fly in the ointment could be reliability under track conditions?
The only problem is the engine that i can see, the GT3 engine is in another league, I've seen what can happen to a nicely run in and well looked after example of the standard cayman/boxster i would hate to think of hammering the standard engine along with mods. The car may run 4 secs a lap quicker but how longs it going to last and where will you go when the IMS goes with loads of mods unless you have a few quid. Its risky i think and i know it annoys some owners on here but a powerful Cayman really is a great idea..such a shame Porsche wont strip one out and put a 3.8 lump into it.

Bone_Head

22 posts

180 months

Wednesday 6th May 2009
quotequote all
Good point TOENHEEL but I didn't think the IMS thing was an issue with the M97 Cayman engines (just the older Boxster ones)??

TOENHEEL

4,501 posts

228 months

Wednesday 6th May 2009
quotequote all
Bone_Head said:
Good point TOENHEEL but I didn't think the IMS thing was an issue with the M97 Cayman engines (just the older Boxster ones)??
It was and is an issue our 987 Boxster blew the IMS at 29k ran in perfectly and if it wasnt for my dads motor trade past we would of been took to the cleaner for thebest part od 10k frown We were gutted.. Theres no doubting the Cayman has the makings to be really one hell of a car but i cant see Porsche going down that avenue..i would personally love a lightweight Cayman with more feel.

Davey S2

13,098 posts

255 months

Wednesday 6th May 2009
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NoelWatson said:
mrdemon said:
As for 997 C2S I think my car would be faster no contest (non DFi model)
Edited by mrdemon on Saturday 2nd May 23:12
Would be interested to find out. The 997 C2S tends to do around 170+ at VMax. There was a Cayman last week that apparently had 355bhp - it only got 165mph.
Correct and my standard Cayman S did 162!

Callughan

6,312 posts

193 months

Wednesday 6th May 2009
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Hopefully arranging an airfield event just for Porkers soon, so would be good to see it in action.

mrdemon

Original Poster:

21,146 posts

266 months

Wednesday 6th May 2009
quotequote all
I live near brunters so would be there

911DM

4,333 posts

188 months

Wednesday 6th May 2009
quotequote all
couple of sexy ladies wink at the bottom of the strip. See who gets there first smokin lol

Ultra Violent

2,827 posts

270 months

Wednesday 6th May 2009
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911DM said:
couple of sexy ladies wink at the bottom of a strip. See who gets there first smokin lol
EFA

Callughan

6,312 posts

193 months

Thursday 7th May 2009
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Gazboy said:
Callughan said:
Hopefully arranging an airfield event just for Porkers soon, so would be good to see it in action.
What kind of event? smile
Working on it, will let you guys know shortly.

Porkie

2,378 posts

242 months

Thursday 7th May 2009
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shamrock said:
Porkie said:
TB993tt said:
mrdemon
As they say, you are "drinking the kool aid". Thinking that someone in the US with a chassis dyno and the brain the size of a house could know Motronic and its abilities/limitations better than the people who invented it stretches it a little smile

You really need to get your GPS logger fired up and run some numbers. stock 100-200kph is about 14s, if yours has 340 real hp it should come in under 11s (if you look at similar powered/weighted porsche on the site I linked)
I agree... and isn't Thorney the place that do alot of M3 CSL's? and always seem to get incredible BHP readings on just very basic mods? wink
Their graphs look very similar to the one provided by the OP, i.e. big jump in bhp, no ambient temperature data on graphs, etc.

Looks like another result for the hairdryer mod biggrin
hahah very good! wink

dom9

8,095 posts

210 months

Thursday 7th May 2009
quotequote all
MrD, do you have (on an invoice etc) or can you get, the part numbers for the plenum and throttle body?

No word from Scott at my end.

Don't worry if not, I will trawl the parts diagrams and see if I can work it out for myself.

Cheers, Dom

Gibbo205

3,560 posts

208 months

Saturday 6th August 2011
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mrdemon said:
quote "stock 100-200kph is about 14s, if yours has 340 real hp it should come in under 11s "


Well it's not going to do under 11 seconds is it when 385Bhp cars are only just in 11's and GT3 are 11.3 !!!
Must be the extra drag on the Boxster slowing it down above 100Mph

these are some figurers I have spent time collecting 4 for each car than average them out 100kph to 200kph.

14.7 Boxster 3.4 RS60 with 305 Bhp
14.1 Cayman S 295 gen 1
13.5 Cayman S techart 310Bhp
13.5 Cayman S PDK 320Bhp
13.2 Cayman S Weland 320Bhp
11.9 Cayman S Techart 385 Bhp
11.1 Cayman S Weland 385Bhp

other faster Porsche
12.8 997 C2 325Bhp
12.3 997 C2 345Bhp PDK
11.5 997 C2s 355Bhp
11.5 997 C2s 385Bhp PDK ( ok which is right cannot be the same time as the old 355BHp car)
11.4 997 C2s 385BHp power pack car
11.3 GT3 Mk1 360Bhp

So some interesting times there.




Edited by mrdemon on Monday 4th May 09:32
Sorry for the epic thread revival, but did you ever do 100-200kph, or post your actual 30-70 and 60-100 times MrDemon?

We've spoke previously as you had the Epic TT RS, maybe you still do which was very quick. smile

Be really interesting to see your 30-70, 60-100 and 100-200kph for your Cayman and TT RS. smile


I've been tuning my 911 C2S within the limitations of Porsche, so basically just X51 add-ons and the butt dyno along with the Vbox have certainly seem some nice gains, but saying that my car actually seems too quick.

Here are the times, I run several taking best, slowest and around the middle, but even the slowest seem rather quick, all done on a Vbox. smile

30-70mph - 3.4s
60-100mph - 5.4s (best 4.7s, worse 5.6s)
100kmh - 200kmh - 10.6s (best 10s, worse 11s)


Also gone head to head on a roll with a 996 GT3 MK2 well into three figures several times and everytime there is nothing in it. On the scales my car weighs 1440kg, thats with all fluids and 1/2 tank of fuel. The 996 GT3 MK2 weighs 1480kg on same scales and is caged up, in fairness to the GT3 it was 2 up wheras I was one up, but there was nothing in it, not even past 130. smile

Were guessing my cars extra performance is because its got ceramics, so helping reduce weight, particular un-sprung mass and its got the aerokit again helps reduce weight.


In regards to your Cayman tuning well I don't doubt it a bit. The intake system on both the Cayman and Carrera is restrictive, replacing the throttle body/plenum with GT3 throttle body gives considerable proven improvements. The Carrera CUP's run GT3/X51 throttle bodies along with performance filters etc.

Also the Cayman and Carrera have very restrictive 600 cel cats, changing these out for 200 cel units, again gives considerable improvements and Scott over at softronic is simply a genius, with what you did to your Cayman I don't doubt one bit that it was in the 340BHP range, I've seen them with near 355-360BHP and been in one, needless to say they are a mighty improvement over the regular output. I've driven a Cayman R and a tuned gen1 Cayman S is still quicker, which I think is proof pretty much in itself that these tuned Caymans in the 340-360BHP region really are around that HP as the Cayman R is a Porsche tested 330BHP and lighter. smile

mrdemon

Original Poster:

21,146 posts

266 months

Sunday 7th August 2011
quotequote all
nice thread recall :-)

Just cleared out all my Porsche stuff, but still have the TTRS
I would love a Cayman R but the power is disapoining and less than my gen 1 Cayman lol
Come on Porsche make a Cayman with 380BHp please.

TTRS Vbox times are

30-60mph 1.89
70-120mph 6.4

it's very fast now and quite funny going up V other fast stuff ;-)

not got a 100-200kmh run as it just before a gear change my 100-198 is 8.3 seconds

Nice figures from your 911 though.



Edited by mrdemon on Sunday 7th August 16:04