The Intelligent Money Racing 718 Cayman build thread!
Discussion
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 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
The Wookie said:
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 since
There’s some nice aftermarket options out there for sure, time was a factor but also the angle that a straight link would have run at was not very satisfactory, building in the offset meant the forces were sent straight down the link rather than trying to bend it. Or at least, that’s the theory
There’s improvements available for sure but we have got a load of other stuff higher up the list at the moment so as long as it continues to be reliable it’s staying for a while at least. We’ve three races coming up over the next 7 weeks so it will get well tested .
Ben, see you there!
.Ben, see you there!
So Snetterton went much better than Donny, we actually finished the race .
Quali was not bad with 5th on the grid, still not fast enough but closer than last time so going in the right direction.
The start went well again, the gap to the pit wall was a bit tight but I made it through to first and was running around the podium for the first half of the race.
After the pit stops I spent most of my time chasing down an M3 that was the only RWD car in front of me but when the opportunity to make a move came I was possibly a bit to careful in giving the other guy enough room, ran wide and then ran out of talent
.
I recovered to the track and ended up in 6th place, 5th in class and 2nd RWD car.
Not much further up the field but a lot of progress and actually a really enjoyable race to drive. I’m still finding things about the car that need improvement and hopefully we’ll be able to try some ideas out next weekend when we race at Cadwell Park.
Caddy should suit the FWD stuff so I’m not expecting too much but it’s always an exciting place to race so we’ll see how it goes!
A few of the ups and downs from the race can be found here -
https://youtu.be/w6w7sDKwDpg
.Quali was not bad with 5th on the grid, still not fast enough but closer than last time so going in the right direction.
The start went well again, the gap to the pit wall was a bit tight but I made it through to first and was running around the podium for the first half of the race.
After the pit stops I spent most of my time chasing down an M3 that was the only RWD car in front of me but when the opportunity to make a move came I was possibly a bit to careful in giving the other guy enough room, ran wide and then ran out of talent
.I recovered to the track and ended up in 6th place, 5th in class and 2nd RWD car.
Not much further up the field but a lot of progress and actually a really enjoyable race to drive. I’m still finding things about the car that need improvement and hopefully we’ll be able to try some ideas out next weekend when we race at Cadwell Park.
Caddy should suit the FWD stuff so I’m not expecting too much but it’s always an exciting place to race so we’ll see how it goes!
A few of the ups and downs from the race can be found here -
https://youtu.be/w6w7sDKwDpg
I haven’t monitored the intake temps but the power seems reasonably consistent over a long run relative to the NA stuff I’m up against so I don’t think it’s a big issue although it must have some effect and we have talked about a bigger cooler which may give more tuning options if we wanted them at a later point.
Ben Lowden said:
Nice to meet you Steve and congrats on the race! Looks like it was a bit frustrating for you but good progress all the same.
We had a driveshaft break half way through quali that cut our time short, but we still managed to start P15 and finished the race P6/44 so were pretty happy with the result!
Great result I’d say!We had a driveshaft break half way through quali that cut our time short, but we still managed to start P15 and finished the race P6/44 so were pretty happy with the result!
Our race was a lot of fun and a good step forward. It’s a shame I dropped it but it happened because I was making sure I’d given enough space to the other guy and I’m ok with that (for now
).Well we’re all set for tomorrow at Cadwell Park, did some runs on Wednesday thanks to having a very tolerant boss at Circuit Days who were running at trackday there.
I was supposed to be instructing but fortunately wasn’t too busy so have a reasonable setup dialed in but it’s probably our weakest circuit on the calendar so I’m praying for rain tomorrow to mix things up a bit
If anyone is bored live timing is here - https://www.tsl-timing.com/event/212751
Quali is 10.45, race is the last of the day at 17.25
, they usually stream the commentary for the race on TSL so hopefully we’ll get a mention for doing some good!
I was supposed to be instructing but fortunately wasn’t too busy so have a reasonable setup dialed in but it’s probably our weakest circuit on the calendar so I’m praying for rain tomorrow to mix things up a bit
If anyone is bored live timing is here - https://www.tsl-timing.com/event/212751
Quali is 10.45, race is the last of the day at 17.25
, they usually stream the commentary for the race on TSL so hopefully we’ll get a mention for doing some good!Yep, still moving forward with the development of the car 
.
I wasn’t expecting too much yesterday but we had found some extra pace over testing and landed 100th of a second off the second row of the grid which was a pretty acceptable place to be. We know the car is mega off the line but there is no space at Cadwell and I’ve had a big shunt at a start there before. In fact my track record at Cadwell is pretty decent but I can’t remember a race without any drama, it’s so bad that it’s the one circuit that Mrs H refuses to come along to help at.
Fortunately it wasn’t so bad this time, this was my start -
From there I dropped back behind one of the M3s and the TCR outdragged me but then proceeded to hold me up so I was running in a train with him in front and the orange M3 right behind for a number of laps with only 10ths between us.
As soon as the pitstop window opened I dived in and came out again in clean air so I could get a couple of good laps in before the other guys pitted and sure enough it worked as an undercut and I came back out third in class, 4th overall. With the tow broken I managed to keep a good gap behind me and the M3 in front went off with a damaged splitter bumping me onto the overall podium and 2nd in class.
The last place I expected to get it but our first trophy for IMR.
.I wasn’t expecting too much yesterday but we had found some extra pace over testing and landed 100th of a second off the second row of the grid which was a pretty acceptable place to be. We know the car is mega off the line but there is no space at Cadwell and I’ve had a big shunt at a start there before. In fact my track record at Cadwell is pretty decent but I can’t remember a race without any drama, it’s so bad that it’s the one circuit that Mrs H refuses to come along to help at
.Fortunately it wasn’t so bad this time, this was my start -
From there I dropped back behind one of the M3s and the TCR outdragged me but then proceeded to hold me up so I was running in a train with him in front and the orange M3 right behind for a number of laps with only 10ths between us.
As soon as the pitstop window opened I dived in and came out again in clean air so I could get a couple of good laps in before the other guys pitted and sure enough it worked as an undercut and I came back out third in class, 4th overall. With the tow broken I managed to keep a good gap behind me and the M3 in front went off with a damaged splitter bumping me onto the overall podium and 2nd in class.
The last place I expected to get it but our first trophy for IMR
.
So not too many car changes since Cadwell but this weekend we are out with a different club!
BRSCC are running a one-off endurance race at Snetterton ahead of what they hope will be a full series or championship next year. It’s a similar format to 750 Enduro that I’ve competed in before, a 100 minute race with two mandatory three minute pitstops and refuelling as required.
The classes go from 150 right up to 350bhp/ton so there should be a big mix of kit out there and we are sat round about the middle of it all.
I was hoping for wet weather as always, it looks like most of the rain will be tomorrow but we could get lucky and have a shower during the race to spice things up
Should be good to get out in a different paddock, race is due to start at 4.45 on Saturday with live timing - https://www.tsl-timing.com/event/213031
They do live stream a lot of their races as well, I can’t see any info on that at the moment but if it is on there will be a link on the BRSCC home page - https://brscc.co.uk/
BRSCC are running a one-off endurance race at Snetterton ahead of what they hope will be a full series or championship next year. It’s a similar format to 750 Enduro that I’ve competed in before, a 100 minute race with two mandatory three minute pitstops and refuelling as required.
The classes go from 150 right up to 350bhp/ton so there should be a big mix of kit out there and we are sat round about the middle of it all.
I was hoping for wet weather as always, it looks like most of the rain will be tomorrow but we could get lucky and have a shower during the race to spice things up
Should be good to get out in a different paddock, race is due to start at 4.45 on Saturday with live timing - https://www.tsl-timing.com/event/213031
They do live stream a lot of their races as well, I can’t see any info on that at the moment but if it is on there will be a link on the BRSCC home page - https://brscc.co.uk/
Gassing Station | Readers' Cars | Top of Page | What's New | My Stuff