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Author Subject: Goldie the track car
phillipm

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Location: Rotherham

Registered: 15 Oct 2006

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Post #826
Why do you have all that fuel out for a cold start?

Leave it set at zero or just a little extra fuel for the cold water temps, and pull the fuel out of the startup table - I reckon you could pull that down to about 75% fuel (Mine is MAP-based load so I can get away with only 50% - I guess yours is TPS based?) for the first row and then smooth the transition a bit.

I know the setup is a lot different but that's mine for the buggy and if anything it starts a bit too keen, it blips itself up before you can get your finger off the button LOL :



Then I have a good slug of fuel to prime the injectors (10ms) set in general engine settings with mine being stood often and needing the twin injectors purging.
What do you have for firing tooth on startup?

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Posted 1st Apr 2019 at 19:39
prism7guy

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Location: DoncastAAAAARGH

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Post #827
I took all that fuel out in the water temp compensation as it's the only way i was seeing the wideband come above 10:1 which i thought seemed excessively rich, with it as it is it seemed to stay between 12:0-1 and 13:0-1 on the wideband when i had it running earlier between ~10c and ~30c.

Yeah mine is TPS based.
I'm out tomorrow night but on wednesday i'll do as you said and set the water temp comp fueling back to 0 and make the changes to the start fueling map.
I got a bit confused about the % on the advance compensation bit, i was doing it in increments of 2-3 but it didn't seem to be having too much of an effect until i jumped up considerably. In my mind it would just be how many degrees to advance the timing but the % sign then made me question it.

I'll update you on what firing tooth i've got it set to when i get back out to it on wednesday Thumbs up

________________________________________

quote:
Goldie the track car.

[quote="rikky"]never trust a man in a nike hoodie. i used to wear nike hoodies when i used to be a bad man, and i was not to be trusted.
Posted 1st Apr 2019 at 20:24
phillipm

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Location: Rotherham

Registered: 15 Oct 2006

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Post #828
There's a checkbox to set it to degrees instead of %, probably in general settings. Mine is.

________________________________________

- Bespoke rollcages/additions/adjustments. Half cages right up to complete custom spaceframes - MSA/FIA spec, CDS, ROPT, T45, etc - PM me
Email me!
Custom-made polybushes available - need an odd size or fitment? - anything from batch work to one-off pieces.
Posted 1st Apr 2019 at 20:26
prism7guy

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Location: DoncastAAAAARGH

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Post #829
Did a bit more tinkering earlier, found that check box that switches it from advance % to degrees, makes a lot more sense now that it's working in degrees.

20190403_190321 by Steve Count, on Flickr

20190403_192336 by Steve Count, on Flickr

The start fuel map needs some tweaking but i'll do that next time i start it up and keep homing in until its much better and then smooth out the transitions. The main thing now is that it's not just sat at 10:1 on the wideband, and adding a little advance in the water temp comp table has made the world of difference, it's almost instantly trying to fire now, a mini blip of the throttle and it catches and now it keeps running once it's properly fired up.

I'm really pleased with the progress so far, thanks a lot for all your help Phill Thumbs up

________________________________________

quote:
Goldie the track car.

[quote="rikky"]never trust a man in a nike hoodie. i used to wear nike hoodies when i used to be a bad man, and i was not to be trusted.
Posted 3rd Apr 2019 at 21:25
prism7guy

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Location: DoncastAAAAARGH

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Post #830
Had another hour on the car earlier, the new fuel filter arrived so i fitted that. The old one had seen better days!

20190407_164117 by Steve Count, on Flickr

20190407_164047 by Steve Count, on Flickr

After fitting that had another play with the laptop running through a cold start, made a couple of minor tweaks but nothing really worth mentioning. Starting it up now is pretty effortless, just give it a quick tap on the accelerator once it's fired once and it jumps into life.

I noticed a puddle forming under the centre section when i was checking the fuel system for leaks, it seems there is a pinhole somewhere at the rear of the box so that's a job for another day. Should be a nice easy fix though so i'll have a look at that next weekend.

20190407_164923 by Steve Count, on Flickr

I've booked a trackday at Blyton Park on the 20th of April, it will be the cars first outing this year so i'm looking forward to it! Big grin

________________________________________

quote:
Goldie the track car.

[quote="rikky"]never trust a man in a nike hoodie. i used to wear nike hoodies when i used to be a bad man, and i was not to be trusted.
Posted 7th Apr 2019 at 22:00
phillipm

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Location: Rotherham

Registered: 15 Oct 2006

Posts: 20,582

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Post #831
No worries. If it still needs a stab of throttle to start try adding 1 tooth in the 'firing tooth on startup' setting.

________________________________________

- Bespoke rollcages/additions/adjustments. Half cages right up to complete custom spaceframes - MSA/FIA spec, CDS, ROPT, T45, etc - PM me
Email me!
Custom-made polybushes available - need an odd size or fitment? - anything from batch work to one-off pieces.
Posted 7th Apr 2019 at 22:05
prism7guy

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Location: DoncastAAAAARGH

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Post #832
Should i reduce the ignition advance back to '0' in the water temp comp table when i add one on to the firing tooth?

________________________________________

quote:
Goldie the track car.

[quote="rikky"]never trust a man in a nike hoodie. i used to wear nike hoodies when i used to be a bad man, and i was not to be trusted.
Posted 8th Apr 2019 at 19:33
phillipm

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Location: Rotherham

Registered: 15 Oct 2006

Posts: 20,582

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Post #833
Nah, just give it a try and see if it improves things first.

________________________________________

- Bespoke rollcages/additions/adjustments. Half cages right up to complete custom spaceframes - MSA/FIA spec, CDS, ROPT, T45, etc - PM me
Email me!
Custom-made polybushes available - need an odd size or fitment? - anything from batch work to one-off pieces.
Posted 8th Apr 2019 at 19:36
prism7guy

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Location: DoncastAAAAARGH

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Post #834
Blyton park was a successful day out, plenty of track time, nice weather and nothing broke!

Some footage from the day:

Session 1
Session 2
Session 3
Session 4
Session 5
Session 6
Session 7
Session 8

After the successful day at Blyton i decided to take it to the PSCUK organised sprint day at Curbourough.
No major issues to report, by the end of the day the brakes seem to be sticking on a bit, i can only assume it's something to do with the master cylinder as both front calipers seemed to be doing it. I'll have a proper look at it this weekend if i get a spare minute.

Some footage from Curborough:

Session 1
Session 2
Session 3
Session 4
Session 5
Session 6
Session 7
Session 8
Session 9
Session 10
Session 11
Session 12

________________________________________

quote:
Goldie the track car.

[quote="rikky"]never trust a man in a nike hoodie. i used to wear nike hoodies when i used to be a bad man, and i was not to be trusted.
Posted 25th Apr 2019 at 19:52
blandy

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Post #835
Looks good gets up through the gears quickly is it a standard 6 box?
Posted 25th Apr 2019 at 21:31
prism7guy

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Post #836
Cheers mate, yeah its a standard 6 box with a 3J plate diff inside.

________________________________________

quote:
Goldie the track car.

[quote="rikky"]never trust a man in a nike hoodie. i used to wear nike hoodies when i used to be a bad man, and i was not to be trusted.
Posted 25th Apr 2019 at 22:28
RallyeRed

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Location: Northwich

Registered: 03 May 2016

Posts: 346

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Post #837
Amazed you weren't wearing a helmet for that?
Posted 26th Apr 2019 at 12:16
prism7guy

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Post #838
For some reason it's not compulsory to wear a helmet on the sprint days.

________________________________________

quote:
Goldie the track car.

[quote="rikky"]never trust a man in a nike hoodie. i used to wear nike hoodies when i used to be a bad man, and i was not to be trusted.
Posted 26th Apr 2019 at 12:28
blandy

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Post #839
Just read from the start - Cracking read alot of clever engineering especially like the wishbones etc
May do something similar - how did you do the front arb in the end?
Posted 26th Apr 2019 at 16:39
prism7guy

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Post #840
Thanks Mike Thumbs up

The front arb is linked to the diagonal wishbone tube via a pair of rose joints. It's far from an ideal setup due to the angles and stresses it will cause but it does the job for now.
If/when i decide to revisit the front end i'll come up with something neater, i'm toying with the idea of going wide track and fitting much wider wheels, so some more custom work will be required then.
Next time i have a front wheel off i'll get a picture to show how it's all currently looking.

________________________________________

quote:
Goldie the track car.

[quote="rikky"]never trust a man in a nike hoodie. i used to wear nike hoodies when i used to be a bad man, and i was not to be trusted.
Posted 26th Apr 2019 at 17:24
prism7guy

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Post #841
Little bonus clip from Blyton, it was the last session of the day, only 3 of us left on track so I was messing about seeing what i could get away with. Laugh

Oversteer goodness Big grin

________________________________________

quote:
Goldie the track car.

[quote="rikky"]never trust a man in a nike hoodie. i used to wear nike hoodies when i used to be a bad man, and i was not to be trusted.
Posted 26th Apr 2019 at 18:59
prism7guy

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Location: DoncastAAAAARGH

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Post #842
Update time:

Decided to have a go at spraying the bonnet myself.
To start with:
20190526_171324 by Steve Count, on Flickr

One layer of primer:
20190526_173706 by Steve Count, on Flickr

After three layers of primer and a bit of wet sanding:
20190526_212740 by Steve Count, on Flickr

Couple of coats of blaze:
20190527_123745 by Steve Count, on Flickr

Couple of coats of 2k lacquer:
20190527_163101 by Steve Count, on Flickr

Could be better but the car won't be entering any show & shine contests so it'll do for what i want it for.

Now for some more interesting bits, a while ago my mate Calvin gave me his spare coilpack unit which he bought for his wifes C4 vts (i think that's what he bought it for anyway LOL)
It seems like a much neater solution than my old setup of a single coil pack on the end of the head with HT leads running to each plug. After a few trial fits it was obvious that some fettling would be required, but the car would start and run without having to change any of the old wiring loom using this new coilpack unit.
The oil filler cutout needed moving along a bit, then several of the old aluminium tabs which were used for the original coils needed chopping off.

20190623_130046 by Steve Count, on Flickr

20190623_134902 by Steve Count, on Flickr

Next job:
The last trackday i did at Blyton i was catching quite an amount of oil in the catch tank, enough that some was spitting out of the breather filter so i decided to make a new catch tank and have this one dump any caught fluid back into the block. Fortunately we occasionally have to machine some aluminium extrusions for a customer at work, and collect the odd bit of offcut in the scrap bin. They are basically heatsinks, so i raided the bin and got to work with the welder. Excuse the awful looking welds, i've not done any ally welding for a good couple of years and the welder i used didn't have a footpedal which i'm sure would have helped a bit.

New vs. old:
20190614_161746 by Steve Count, on Flickr

I built four chambers into it, the idea being that the vapour has to travel through three different chambers before it vents out of the breather, hopefully enough time for oil to condense then drain back out of the bottom and into the block.
It's quite a bulky unit (internal volume just over 2 litres) so i had to re-organise a few things in the engine bay.

20190621_203634 by Steve Count, on Flickr

I've decided to remove the laminova for now to see if this helps keep the oil temps down on track too, so now the oil just comes out of the block, through the 30 row air cooler, into the remote filter then back into the engine to do it's job. Removing this created some space behind the top of the radiator so the remote oil filter was moved here and the oil lines have been shortened to suit.
The lack of the laminova also meant that i could get a new top hose with a more direct route to the thermostat housing. After a few hours searching for a suitable hose (long enough but with a 90* bend at one end) i found a gates item which seems to do the job nicely after a little trimming at each end.
I'm really pleased that i've now got several less hose joins in the system as it means theres much less chance of dropping any fluids on the nordschleife in the future, something that scares the hell out of me!
I was also able to move the air filter down below the inlet manifold to free up a significant amount of space. It's not ideal that it will be sucking in warm air from the radiator but it'll be going through an overkill intercooler before reaching the engine so hopefully it won't affect things too much, if it does then i'll have to sort out a new cold air feed to it.

20190621_203713 by Steve Count, on Flickr

And here it is as it stands now, ready for pugfest this coming weekend then a trackday at Cadwell the following week. Big grin

20190623_135740 by Steve Count, on Flickr

________________________________________

quote:
Goldie the track car.

[quote="rikky"]never trust a man in a nike hoodie. i used to wear nike hoodies when i used to be a bad man, and i was not to be trusted.
Posted 25th Jun 2019 at 20:13
Day666

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Location: Bristol

Registered: 20 Apr 2013

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Post #843
Fantastic work Steve Thumbs up ......keep the fantastic updates coming m8 Smile
Posted 2nd Jul 2019 at 06:19
prism7guy

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Location: DoncastAAAAARGH

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Post #844
Cadwell came and went. Before i went my speedo had stopped working. I removed the vss to find this:

20190703_190359 by Steve Count, on Flickr

Not sure how it happened but i pulled another vss out of a spare box, put it in and now everything is fine again.

Had a pretty good day at Cadwell, there was some very quick cars there.

20190704_092810 by Steve Count, on Flickr

48232358162_5499202a72_o by Steve Count, on Flickr

48232358942_0e76272079_o by Steve Count, on Flickr

My cousin got a few drive by videos during the day which i'll link below, and i got a few in-car videos too, links below.
Ryan (pug_306) came later on in the afternoon so I took him out for some passenger laps, he'd booked the evening trackday so later on i grabbed a passenger session with him to compare our different supercharger setups. His definitely seems to have a lot more 'go' up near the limiter and his power delivery is super smooth.

Drive-by 1
Drive-by 2
Drive-by 3

Trying to keep up with an Exige
Trying to keep up with a GTR
Trying to keep up with a pair of Evo's
Playing with a 450bhp Impreza
Ryan's passenger session

The car ran pretty well throughout the day, the oil got up to 125-130c but didnt get any higher throughout the day (It was a pretty hot day). I'm still having issues with losing considerable amounts of oil out the breather system, so i think it's time to do a compression test when i get a spare minute and see if anything is obviously wrong.

20190704_182853 by Steve Count, on Flickr

________________________________________

quote:
Goldie the track car.

[quote="rikky"]never trust a man in a nike hoodie. i used to wear nike hoodies when i used to be a bad man, and i was not to be trusted.
Posted 11th Jul 2019 at 21:04
t3ora

Regular

Location: stourbridge

Registered: 22 Dec 2009

Posts: 299

Status: Offline

Post #845
Seen your car at pug fest,but never see it run up the hill
And boy do you run some caster

________________________________________

Road/track car coming together slowly
Posted 11th Jul 2019 at 21:08
prism7guy

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Location: DoncastAAAAARGH

Registered: 13 Jan 2008

Posts: 4,516

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Post #846
t3ora wrote:
Seen your car at pug fest,but never see it run up the hill
And boy do you run some caster


Yeah, i went to get some run passes in the morning but they'd all sold or been allocated. Checked back throughout the day and had no luck getting any. I'll have to pre-book some next year.

Just a little Laugh

________________________________________

quote:
Goldie the track car.

[quote="rikky"]never trust a man in a nike hoodie. i used to wear nike hoodies when i used to be a bad man, and i was not to be trusted.
Posted 11th Jul 2019 at 21:11
prism7guy

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Location: DoncastAAAAARGH

Registered: 13 Jan 2008

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Post #847
Did a compression test, think i've found the issue Laugh

Goldie compression test results July 2019 by Steve Count, on Flickr

I reckon cylinder 4's poor results are from the piston rings not sealing all that well because the compression shot up after running the tests with 5ml of oil squirted into the cylinder. Cylinder 1 picked up a little extra compression with the oil but not a whole lot, so my guess would be burned valves maybe?
Either way i think the easiest route for me right now is to source a replacement engine and get that stuck in there as the 'ring trip is coming in a few weeks.
There's a few little niggly bits i can fettle whilst the engine and 'box are out too so it's not all bad.

________________________________________

quote:
Goldie the track car.

[quote="rikky"]never trust a man in a nike hoodie. i used to wear nike hoodies when i used to be a bad man, and i was not to be trusted.
Posted 13th Jul 2019 at 23:20
blandy

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Location: Bucks

Registered: 25 Feb 2007

Posts: 2,247

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Post #848
Sad to see. Almost identical to my mates 6 engine on Thursday. Was filling 1ltr catch can after 3 laps of Combe. Interested to see what you find. These engines are getting harder to find now so I’ll rebuild his one but he’s in no rush
Posted 14th Jul 2019 at 13:12

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1998 Peugeot 306 Gti6

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