Castle Combe, May 2023

[Saltire]

I filled the Black Beastie just in case I could find a dog sitter for the w/e but no joy. Couldn't find a house sitter to look after Sod. Sorry, Sid

£1.509 for Super (E5/97 RON) at my local Sainsbury in Kelsae.

Have a good w/e

Fuel is always more expensive round here - obviously they think that the weekend cottage brigade can afford it

[MPx]

Well despite polishing up my credentials as a complete knob...not least by running over the great and good by starting the car while stood beside it - forgetting it was in gear - Doh! I had a great day!! Only possible of course by the company of so many of LEC (and indeed other clubs) and the tremendous help everyone gave me. Special thanks as ever to Pinky for actually working on the car to replace the wastegate acutator pipe and Ron for fitting his data logger for my final run and then studying the Elanscan file - just a shame the computer basically appeared to have recorded that the car was working OK. Well it was most of the time and gave me some great laps but just not as many as I'm used to! Many thanks one and all - greatly enjoyed.

[Blaster]

Made it back in good time. Still with a misfire at anything over 1/4 throttle once warm but I could cruise at 70 without issue.

Just need to let it cool down so I can investigate.

Great weekend.

[muley]

Yes, another great couple of days

Enjoyed seeing PP9 and the work on it ~ it did fire up

Thanks to Dave Pink for transporting the wheel to me

Smoking Dog was a pale shadow of it's former self

The curry was the best I have ever eaten and Spice Merchant looked after us very well

A LECer wanted to pass on his thanks to the "team" for highlighting the danger of prostate cancer and detection of. I was able to update him on where some of us are in the detection and treatment cycle

Safe journeys one and all

[Fredjohn]

Slowly and safely home, stuck behind a motorhome all the way!
Great weekend once again. Thanks to the weatherman, and to Jonathan for the curry organisation. Excellent again.
Thanks Dave for jumping my flat battery. It's now on Ctek charge and I'll see what happens. And do a bit of rewiring!

[dapinky]

I filled the Black Beastie just in case I could find a dog sitter for the w/e but no joy. Couldn't find a house sitter to look after Sod. Sorry, Sid

£1.509 for Super (E5/97 RON) at my local Sainsbury in Kelsae.

Have a good w/e

You were missed, Mark (not by us, but Karen asked after you at Burton Hill!)...... oh, alright, we did miss you really.

I payed £156.9 from Sainsburys at Bridgend on the way home, but it is only £153.9 locally for Texaco Supreme.

Still, when I filled up it took 33 litres and had 270 miles on the clock (it is the first chance I've had to do a mpg check as I didn't fit the non-leaking tank until the end of last season) - my maths says that I got between 36 and 37mpg on this trip. That is speed limit driving all the way (where safe!), mainly motorway, but a fair bit of 'A' roads, country lanes and towns - I'm pleased with that!

[Steve A]

Really enjoyed the weekend (the weather helped)good to see everyone again
I think even Lesley enjoyed MOST of it, might have to look at booking the Silverstone classic (if there's still spaces) while she's in the right frame of mind.
It's a pity you couldn't make it Mark

[TrevorB]

PSX_20230528_071627.jpg

PSX_20230528_071701.jpg

Great to see everyone at CC, lovely weather and good company. Even had some exciting moments, Johns Elan rolling off the trailer and Mikes nearly knocked over half the LEC contingent that was there!

Well done all those that got under the bonnet or dashboard in my case to resolve various issues.

A happy campers photo.

[alan e]

Had great time for me its not so much the cars its the people the LEC members which i call friends each and everyone one of you even the ones that try to run you over looking forward to the next get together.

[RonR]

Well despite polishing up my credentials as a complete knob...not least by running over the great and good by starting the car while stood beside it - forgetting it was in gear - Doh! I had a great day!! Only possible of course by the company of so many of LEC (and indeed other clubs) and the tremendous help everyone gave me. Special thanks as ever to Pinky for actually working on the car to replace the wastegate acutator pipe and Ron for fitting his data logger for my final run and then studying the Elanscan file - just a shame the computer basically appeared to have recorded that the car was working OK. Well it was most of the time and gave me some great laps but just not as many as I'm used to! Many thanks one and all - greatly enjoyed.

Here's the ElanScan file for further diagnosis. There's a climbing Knock count, an Overboost later on in the run, and a Prom error which could be the mountain switcher doing something untoward. The PromID appears to be 599?

230105-104503.zip

[dapinky]

The PromID appears to be 599?

230105-104503.zip

Ron,

On the switcher chip, Alan gave each map a different number so that they can be seen as different on Elanscan.....

.... clearly, if your chip only has one MAP, it doesn't matter if it is still called 1499........ but when you have a few, they are differentiated by 399, 499, 599, 699 etc. I can't remember which is which, but one is Kilimanjaro, one is Everest, one is Elysium, 1 is standard etc etc. When I find a computer with W7 on it and get it all to talk, I will dig out my bit of paper which tells me which is which.

[MPx]

Here's the ElanScan file for further diagnosis.

Many thanks again Ron. To set the context, the car would be perfect after the warm up lap for a couple at full chat. As it got hotter I lost some top end - fast to 80-90 then just wouldn't go higher despite boost still at around .9 (Everest programme). Then on lap 5 or 6 I'd get a big pop, sometimes two, (like a backfire) and the CEL would come on. I'd obviously lift and within a few seconds the CEL would go off....but if I resumed it would happen again. On the run in the attached file the first few laps were on 6 Everest (no pops but I lost top end) - then switched to 5 (Kilimanjaro?) and got the pops on the second (which was my last) lap. Grateful for any pointers on what might be happening.

[Rambo]

You were missed, Mark (not by us, but Karen asked after you at Burton Hill!)...... oh, alright, we did miss you really

Karen's always had a soft spot for me since we first started camping there. God knows why

[muley]

You were missed, Mark (not by us, but Karen asked after you at Burton Hill!)...... oh, alright, we did miss you really

Karen's always had a soft spot for me since we first started camping there. God knows why

Beats me as well.

I gave her guide dog a biscuit anway

[Fredjohn]

You were missed, Mark (not by us, but Karen asked after you at Burton Hill!)...... oh, alright, we did miss you really

Karen's always had a soft spot for me since we first started camping there. God knows why

Beats me as well.

I gave her guide dog a biscuit anway

[MPx]

Here's the ElanScan file for further diagnosis.

Many thanks again Ron. To set the context, the car would be perfect after the warm up lap for a couple at full chat. As it got hotter I lost some top end - fast to 80-90 then just wouldn't go higher despite boost still at around .9 (Everest programme). Then on lap 5 or 6 I'd get a big pop, sometimes two, (like a backfire) and the CEL would come on. I'd obviously lift and within a few seconds the CEL would go off....but if I resumed it would happen again. On the run in the attached file the first few laps were on 6 Everest (no pops but I lost top end) - then switched to 5 (Kilimanjaro?) and got the pops on the second (which was my last) lap. Grateful for any pointers on what might be happening.

I realise that this is happening in the wrong thread, but its where it is so I'm continuing unless it can be stripped out somehow. I'm still getting top end issues once the car is hot, and my instinct is that it may be overfuelling. Spoke to Ray about it at Silverstone yesterday and he suggested Coolant Temp Sensor having seen other posts on here. I've searched them now too and it appears to be a possibility. Before I ask SWLC to change the sensor, I thought I'd check here. Am I right in thinking this Graph from the run that RonR captured for me looks like the sensor isn't reading right - it covers 6 laps of Combe? tia

[Tuga2112]

certainly others will know better than me. however i shall be dropping my ignorant opinion regarless.

if i recall correctly, the thermostat opens at 93 but thats a mechanical thing. so. not necessarily the most accurate. BUT
your temperature ranges from 89 to 109 and this according to your message is within running laps in a circuit.

for a pressurised system. i would assume the readings your getting are reasonble and if i had no input from anyone else. i would be looking elsewhere for the problem your describing...

but lucky for you... you dont need to rely on my ignorance. and you can wait for some real knowledge on the matter

id be curious to know what is happening to your machine.

[MPx]

Interesting thoughts Joao. It seems very odd to me that I go on track and do a warm up lap - maybe 120sec then do a couple of hards which for me at Combe in the M100 are about 95secs, and then I start to loose power and can no longer maintain the pace. I'd have thought the temp would climb (maybe higher than normal) and then stay there. What would cause it to drop at all if I'm still trying?

[Tuga2112]

if i recall correctly, the thermostat opens at 93 but thats a mechanical thing. so. not necessarily the most accurate.

i would assume the termostat in your car is opening a little higher than the intended temperture. we know the elan was tested in death valey desert, although i dont know details about the weather there, im pretty sure a car tested in those conditions will have perfectly adequate cooling design to handle a trackday in british weather.

but ignoring that (again based on ignorance) opinion. have you ever noticed how slowly you need to be driving after being standing still to lower the temperature of your coolant from the fans being on to normal operating temperature ? Ive been in queues in motorway when the fans turn on and as soon as i get the chance to drive at 20mph the needle drops to normal operating tempoerature in less than a mile.

althought i already said it. im just going to repeat this to be sure you take my words with a grain of salt. but this is just ignorant opinions on the topic based on my understanding and experiences with the car.

the most i can help you at this point is to highlight what i would be doing if i was in your position. the figures from that graph dont appear to me unusually high readings from the sensor. BUT you can check the engine manual to see if theres any information there about what the ECU expects the Temperature sensor to report within limits. and maybe even see if it enters some kind of limp mode due to it.

just to give you an idea of the type of idiot your talking to, the following is just an extract of what i was typing and the thoughts in my head

"one thing that came to mind just now is that the secondary throtle may be one of those things that only operates at higher revs ? i think its operated by vacuum, but maybe if the boost pressure is too high it could work the line free? .... but then again, that would induce a vaccum leak which would be always present afterwards..... so i probably should delete this sentence now "

whats the readings of the MAP over that run ? a bad reading from that would make the ECU think theres not enough or too much boost and over/under deliver fuel.

also, this is a issue i had very recently on my 4runner... the TPS was not tight and after a certain amount of throtle it moved with the throthle... which made the car perform in a very weird manner, but certainly very underpowered.. just something worth checking i guess.

i would suggest you create a new topic on the technical engine section with all the details and i will have a read through the summary. at this point i dont know where to refer to in this thread to read the details of what you done so far, a fresh new topic may be a duplicate to a certain extent, but will be in the correct section. and to be honest. the people interested in that topic may not look at this thread at all.