The Intelligent Money Racing 718 Cayman build thread!
Discussion
Steve H said:
I gather you had a few issues Ben?
A couple, but hopefully nothing that can't be fixed for the next round at Cadwell https://www.pistonheads.com/news/motorsport/enduro...Great footage there, Steve. What a start!
Interesting one regarding the penalty for the short stop. I understand it not making any difference anyway, due to other issues you had, but would you have been able challenge the penalty if you wanted to, and how?
Is it your guy with a stopwatch's word against an official guy with another stopwatch or a bit more scientific than that?
Just curious.
Interesting one regarding the penalty for the short stop. I understand it not making any difference anyway, due to other issues you had, but would you have been able challenge the penalty if you wanted to, and how?
Is it your guy with a stopwatch's word against an official guy with another stopwatch or a bit more scientific than that?
Just curious.
PorkInsider said:
Great footage there, Steve. What a start!
Interesting one regarding the penalty for the short stop. I understand it not making any difference anyway, due to other issues you had, but would you have been able challenge the penalty if you wanted to, and how?
Is it your guy with a stopwatch's word against an official guy with another stopwatch or a bit more scientific than that?
Just curious.
Probably not, they time the stops with a loop at the pit entry/exit and it forms part of the TSL results so very hard to disprove.Interesting one regarding the penalty for the short stop. I understand it not making any difference anyway, due to other issues you had, but would you have been able challenge the penalty if you wanted to, and how?
Is it your guy with a stopwatch's word against an official guy with another stopwatch or a bit more scientific than that?
Just curious.
We were using a proper gps based pitlane timer that should be able to pinpoint to within a few inches and it does collate data to the 100th of a second but in this case I suspect it's most likely that the exact trigger points that are pre-programmed in our timer may have been different to the ones being used on the day by TSL. There is a facility to set these points manually on the timer but it is a little fiddly and so we did not attempt it during quali, that may have to change next time.
Some clubs have a minimum static stop time rather than a time from pit entry to exit, in that case they tend to time cars manually and the GPS timer might give some evidence if there was a question but even then the timing is generally considered to done by a (judge of fact) which pretty much means it is what they say it is.
I thought the 1 lap penalty was pretty extreme, usually it would be a stop/go penalty where you have to serve the time missed but at least this way an appeal would have been an option after the race had there been a reason (or if it would have made any odds
)Yea there’s some parts that you have no option to appeal on and others frankly where it’s just sensible to learn your lesson and move forward even if there is an option.
For the most part the admin side of it all is done very efficiently by people who work very hard to make everything as fair as possible
For the most part the admin side of it all is done very efficiently by people who work very hard to make everything as fair as possible
Hi Steve.
Great to see things moving along. I’d say that was a decent result for your first outing.
Regarding the fuel tank, do you have the larger tank option on the car or just “standard”? I only ask as I have the larger fuel tank option fitted and it might just be enough with a small additional tank. Certainly cheaper than the GT4 extortionate option!
Wavetrak is the best option for lsd too 👍
You seemed a little hesitant down the Craners - if it’s cold tyres, fair enough but you might add a bit more camber to feel more bite through there?
I’ll keep following - feel free to email for a chat.
Kai
Great to see things moving along. I’d say that was a decent result for your first outing.
Regarding the fuel tank, do you have the larger tank option on the car or just “standard”? I only ask as I have the larger fuel tank option fitted and it might just be enough with a small additional tank. Certainly cheaper than the GT4 extortionate option!
Wavetrak is the best option for lsd too 👍
You seemed a little hesitant down the Craners - if it’s cold tyres, fair enough but you might add a bit more camber to feel more bite through there?
I’ll keep following - feel free to email for a chat.
Kai
Hi Kai
The current tank is standard 54L but I’ve got a used GT4 one for not daft money and will probably end up with an additional one on top of it as well so should be ok on all that by the next race.
Traction is impressive even on the open diff so it’ll be interesting to see how it goes on the LSD!
Yep, not confident enough in the car yet, no excuses there but I’m a good learner so there’s plenty more to come as I understand what it will do.
The current tank is standard 54L but I’ve got a used GT4 one for not daft money and will probably end up with an additional one on top of it as well so should be ok on all that by the next race.
Traction is impressive even on the open diff so it’ll be interesting to see how it goes on the LSD!
Yep, not confident enough in the car yet, no excuses there but I’m a good learner so there’s plenty more to come as I understand what it will do.
Thanks!
Nothing planned yet for a diffuser, partly there’s much more immediate things to get on top of but also with the engine at the back we would have to look very carefully at how it affected the cooling round the lump/box/exhaust etc.
But like any new car it’s very much a development project so anything is possible in future..............
Nothing planned yet for a diffuser, partly there’s much more immediate things to get on top of but also with the engine at the back we would have to look very carefully at how it affected the cooling round the lump/box/exhaust etc.
But like any new car it’s very much a development project so anything is possible in future..............
Time for a long overdue catchup!
It’s been quiet on the racing front but not at all quiet on the fixing/testing side........
So the day after the Donny race the car was already booked in to go to Ninemeister at Warrington for a Wavetrac limited slip diff. There’s not many options available for the PDK box so this is a geared diff rather than a plate type that would be the more normal choice but unlike the Quaife diffs this one will not spin a wheel if it is airbourne which is usually the biggest weakness of this type.
No LSD is less of an issue on the Cayman than would be on most cars and the grip even in the wet is very impressive but every little helps and it was always a weakness that I wanted to fix. Ninemeister spotted the car when I was testing at Oulton and offered to help so it was another box ticked.
We had also talked about improving the cooling and ironing out a mid-range surge that the car had and since we were no longer doing the race at Brands (due to lack of fuel capacity needing a fix first) they took a look at that stuff while it was in as well.
That meant the car was away for a few weeks and as soon as it came back I had a list of things to get going on as well!
First off the GT4 tank had landed so it was front subframe and suspension off to get that in -
With the old tank out I could put it side by side with the bigger GT4 version and see how they found the extra capacity -
Errrrr, they appear identical in every way except one has a 54L sticker on and the other says 64L
.
It may be that they blank part of the tank off internally to make the difference, I hope it’s not just bulls
t cataloguing 
. Once it was back on and bone dry I filled it up and sure enough it took 65L of fuel, and another 5L as it settled through the breathers etc. Whether the original would have done the same I don’t know but I don’t see us using 70L in 40 minutes so I think it must take more, that’s what I’m telling myself anyway 
.
I’d already upgraded the rear anti rollbar to GT4 spec before the first race but hadn’t done the front one because it required the front suspension and subframe to come off so while doing the tank I fitted the GT4CS ARB that was waiting to go on.
Back to the weirdness of Porsche pricing again, the new ARB was less than £200 but unlike the rear it needs the links to be a different length to fit and a pair of GT4CS drop links were about £800
so a bit of bodgery was required........
The original ones are longer so it’s just a case of shortening them, right?
Slice with an angle grinder, add a bit of an offset to get the angle right, throw in a bit of welding and hit them with a splash of black paint and away we go
.
I am the worlds worst welder but it’s strong and every race car needs some Heath-Robinson input occasionally
Not very pretty but, come on, £800
So then it was back out testing again....
Anglesey is a great test track and I’d got data from other cars I’ve raced there to compare with so it was the ideal choice, a few sessions on a day I was working with Circuit Days followed by a full day a week later and the improvements are clear. Drivability is much better now, good grip pushing out of slower turns and the pace seemed good compared to other race times I could find.
Next up was even more fuel capacity!
I’m pretty confident we’d be ok for 45 minute races now but longer stuff is the ideal target so we’ve got an entry in for a 100 minute race with BRSCC at the end of July. This will involve refuelling stops and a big tank opens up more options for choosing exactly when to take them so a bit of ally fabrication is required.........
Obviously we have already established that this is way beyond my welding skills so a local firm sorted out for me and very nice it is too
.
It works as an extension to the original tank and allows a vertical fill with tuff jugs which is much faster and safer than the original fuel filler and has a dry-break connection allowing the jug to vent to tank which increases speed further. During a pitstop we may want to put up to 60L of fuel in and it needs to be done in under the minimum stop time so this will make the job much easier.
So with that we are almost ready for the next race!
Next Saturday (26th June) we are back out with MSVT SuperCup at Snetterton on the rarely used 200 circuit, I’m not expecting too much as there are more improvements yet to be made but it’s another chance to see how we measure up and hopefully have a good battle right to the end this time!
It’s been quiet on the racing front but not at all quiet on the fixing/testing side........
So the day after the Donny race the car was already booked in to go to Ninemeister at Warrington for a Wavetrac limited slip diff. There’s not many options available for the PDK box so this is a geared diff rather than a plate type that would be the more normal choice but unlike the Quaife diffs this one will not spin a wheel if it is airbourne which is usually the biggest weakness of this type.
No LSD is less of an issue on the Cayman than would be on most cars and the grip even in the wet is very impressive but every little helps and it was always a weakness that I wanted to fix. Ninemeister spotted the car when I was testing at Oulton and offered to help so it was another box ticked.
We had also talked about improving the cooling and ironing out a mid-range surge that the car had and since we were no longer doing the race at Brands (due to lack of fuel capacity needing a fix first) they took a look at that stuff while it was in as well.
That meant the car was away for a few weeks and as soon as it came back I had a list of things to get going on as well!
First off the GT4 tank had landed so it was front subframe and suspension off to get that in -
With the old tank out I could put it side by side with the bigger GT4 version and see how they found the extra capacity -
Errrrr, they appear identical in every way except one has a 54L sticker on and the other says 64L
.It may be that they blank part of the tank off internally to make the difference, I hope it’s not just bulls
t cataloguing . Once it was back on and bone dry I filled it up and sure enough it took 65L of fuel, and another 5L as it settled through the breathers etc. Whether the original would have done the same I don’t know but I don’t see us using 70L in 40 minutes so I think it must take more, that’s what I’m telling myself anyway .I’d already upgraded the rear anti rollbar to GT4 spec before the first race but hadn’t done the front one because it required the front suspension and subframe to come off so while doing the tank I fitted the GT4CS ARB that was waiting to go on.
Back to the weirdness of Porsche pricing again, the new ARB was less than £200 but unlike the rear it needs the links to be a different length to fit and a pair of GT4CS drop links were about £800
so a bit of bodgery was required........The original ones are longer so it’s just a case of shortening them, right?
Slice with an angle grinder, add a bit of an offset to get the angle right, throw in a bit of welding and hit them with a splash of black paint and away we go
. I am the worlds worst welder but it’s strong and every race car needs some Heath-Robinson input occasionally
Not very pretty but, come on, £800
So then it was back out testing again....
Anglesey is a great test track and I’d got data from other cars I’ve raced there to compare with so it was the ideal choice, a few sessions on a day I was working with Circuit Days followed by a full day a week later and the improvements are clear. Drivability is much better now, good grip pushing out of slower turns and the pace seemed good compared to other race times I could find.
Next up was even more fuel capacity!
I’m pretty confident we’d be ok for 45 minute races now but longer stuff is the ideal target so we’ve got an entry in for a 100 minute race with BRSCC at the end of July. This will involve refuelling stops and a big tank opens up more options for choosing exactly when to take them so a bit of ally fabrication is required.........
Obviously we have already established that this is way beyond my welding skills so a local firm sorted out for me and very nice it is too
.It works as an extension to the original tank and allows a vertical fill with tuff jugs which is much faster and safer than the original fuel filler and has a dry-break connection allowing the jug to vent to tank which increases speed further. During a pitstop we may want to put up to 60L of fuel in and it needs to be done in under the minimum stop time so this will make the job much easier.
So with that we are almost ready for the next race!
Next Saturday (26th June) we are back out with MSVT SuperCup at Snetterton on the rarely used 200 circuit, I’m not expecting too much as there are more improvements yet to be made but it’s another chance to see how we measure up and hopefully have a good battle right to the end this time!
Rob-c33sg said:
Have a good race! Now you really will have enough fuel! Suspicious on the old tank vs new. I look forward to seeing how the drop links fair they look pretty chunky and I agree £800 is a monster cost.
Thanks Rob, they ain’t pretty but should be sturdy enough and have worked ok so far. Pope said:
The tank thing is pretty common - there is a valve arrangement that stops the tank filling up; Cayenne had a 100l option, the SIT states the tanks are identical bar the position of the valve - probably the same on your variant......
That’s interesting thanks and makes a lot of sense, probably could have modded the original then Edited by Pope on Sunday 20th June 18:06
I was looking at this and thinking, there's got to be a neater solution.
I'd have measured up the diamter of the shaft between the ball joints. if it's a set size like 8mm, then cut threads into it using a die set, one being reverse thread....
|https://thumbsnap.com/dGoGzZqR[/img
Then using some long hex bar in high grade steel, drilled and tapped in some long threaded holes. Add some plain nuts onto the end, volia, instant adjustable drop links for peanuts
I'd have measured up the diamter of the shaft between the ball joints. if it's a set size like 8mm, then cut threads into it using a die set, one being reverse thread....
|https://thumbsnap.com/dGoGzZqR[/imgThen using some long hex bar in high grade steel, drilled and tapped in some long threaded holes. Add some plain nuts onto the end, volia, instant adjustable drop links for peanuts
Sf_Manta said:
I was looking at this and thinking, there's got to be a neater solution.
I'd have measured up the diamter of the shaft between the ball joints. if it's a set size like 8mm, then cut threads into it using a die set, one being reverse thread....
|https://thumbsnap.com/dGoGzZqR[/img
Then using some long hex bar in high grade steel, drilled and tapped in some long threaded holes. Add some plain nuts onto the end, volia, instant adjustable drop links for peanuts
Was going to make exactly the same suggestion, did similar on a mate's 996 GT2 years ago when we fitted an Exe-TC kit on it and it has been fine ever sinceI'd have measured up the diamter of the shaft between the ball joints. if it's a set size like 8mm, then cut threads into it using a die set, one being reverse thread....
|https://thumbsnap.com/dGoGzZqR[/imgThen using some long hex bar in high grade steel, drilled and tapped in some long threaded holes. Add some plain nuts onto the end, volia, instant adjustable drop links for peanuts
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