Irish Clan minor miracle

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Re: Irish Clan

Post by Dave ' Linwood ' Lane »

I did find rubber mounting the support strap took a lot of vibration out , you could rubber bush the main mount as well and run a separate earth strap
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Re: Irish Clan

Post by bks974c »

The current one is an original Lucas unit, previous one a cheap chinese copy and looking back through the topic the first one failed due to a broken bracket so can't
really count that one. It runs big pulleys, There is a Denso unit on VAK that I may end up borrowing but that will require a bit on engineering for the brackets and different fanbelt so if I can sort or replace like for like that will be the preferred option.

Thanks

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Re: Irish Clan

Post by Dave ' Linwood ' Lane »

IIRC Lucas alternators have a rev max of 12,000RPM which is why all the comp alternators i modify inc ones for NASCAR all use Denso units , im not sure you will get a Lucas unit to cope with your 8,500RPM engine speed , given the gearing from the pulleys im guessing your over-revving the Lucas unit.
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Re: Irish Clan

Post by bks974c »

Got to spend sometime checking through the Clan today, the miss has now gone and it seems I might have been a bit quick in condemning the alternator although the belt is tight it appears to be slipping under load so have ordered a new one.

The alternator pulley is the same size or possibly slightly larger than the crankshaft one so over reving should not be an issue, it does however mean that at idle it doesn't charge but that not an issue as mainly used a trackday car.

The mounting for the rose jointed gear lever was cracked so that's been removed and I'll get it welded during the week, other than a wash its ready for the National.

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Re: Irish Clan

Post by Lotus-e-Clan »

I use a 4 inch pulley on a Denso and the charge threshold is around 1300 - 1400 rpm so that's were my idle is set. No problem with overheating (EWP etc) and clutch is better in traffic - I use mine on the road.

So what's your idle set at Scott?
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Re: Irish Clan

Post by bks974c »

800rpm

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Re: Irish Clan

Post by Lotus-e-Clan »

bks974c wrote:800rpm

Scott
You trying to save petrol! :lol: Clan004
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Re: Irish Clan

Post by bks974c »

Clan has been sitting for a fortnight after I carried out the little bits of work and was happy everything was sorted but untested, thought I'd take it to the monthly Club meeting yesterday just to check it was all OK, didn't get far as couldn't get fourth - damn I checked all the gears were working when it was up in the air - all except fourth. :oops:
So turned around and took the Skoda, good turn out at the meeting - 4 Imps, its been a long time since we had that many. :D
On the way home the check brake pad light comes on :twisted:

Today dropped the linkage and ground a bit of the tube to give so throw and jobs a good one. New fanbelt has also sorted the glowing warning light.

Checked the Octavia and pads all OK just an issue with the sensor - looked a bit wet inside the connector.

Loaded the trailer and pulled the tent and camping stuff out of the attic and ready for the off tomorrow to Darlington, going a day early to give a hard with set up.

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Re: Irish Clan

Post by bks974c »

Another Knockhill tracknight last night

Still bothered by a miss coming out of the hairpin despite changing the cap leads rotor arm and plugs, although I'm thinking its fuel related now.

Despite this it was a great night as it was dry and sunny with a good selection of cars and the chance for a bit of dicing.

In the video about 5 mins the clan rear steps out as I had a puncture on the rear which put an end to playtime but only 5mins left so didn't feel short changed

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Re: Irish Clan

Post by bks974c »

Normal service has been resumed, after stripping the carbs and not really finding anything amiss apart from a little muck in the fuel filter a closer inspection of the magnetic ring identified a hairline crack. After replacing the ring its pulls like a train and revs cleanly all the way to its max.

Need to sort another trackday and see how it compares now to my wee brothers 306 rallye (168bhp) as his was clearly quicker the last twice we were out and that's not on :lol: evenly matched last year but both cars have had work done.

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Re: Irish Clan

Post by bks974c »

Clan survived Forrestburn today, infact it was absolutely flying.

There were a number of call offs so ended up with only 12 cars so ended up doing 25 runs incredible value for £25, sometimes without any waiting so managed to
keep temp in the tyres. I had changed to the wheels and tyres from VAK, although the rears were rubbing on the arches the fronts are soft compound Yoko A048's and despite being old the made a huge difference to front end grip and turn in.

Great day.

Colin of the Pest popped up and has a bit of footage that he hopefully will post. :wink:

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Re: Irish Clan

Post by ImpManiac »

Sounds like a lot of fun! 8)

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Re: Irish Clan

Post by colimp66 »

Posted it in the Motorsport section, Scott.
Great showing of Imp power in your Clan today and a fantastic noise of a 998 on forties at full pelt around the twists and turns of Forrestburn. :D Baillie always comments on the noise of your Clan .

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Re: Irish Clan

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Re: Irish Clan

Post by bks974c »

Clan removed from its hibernation and brought home today.

All working OK, ready for its first event on Sunday an Autosolo at Knockhill.

3rd April - Classic car run 150 miles

10th April - Forrestburn Track day

24th April - Imp Ecosse

5th May - Track night Knockhill

Poor wee Clan :lol:

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Re: Irish Clan

Post by bks974c »

Scottish Association of Car Clubs have set up a series of 3 Autosolos for 2016 to test the water as the tradition autotests don't get the level of entries they use to.

First event was today at Knockhill and attracted a healthy entry of 25 car ranging for a Smart Car to a Skoda Superb.

Out in the Clan brought some old tyres blown up to 50psi expecting to need to reduce the rear end grip, when I got there it was apparent that wouldn't be necessary as the tarmac car park was very gravelly with little grip - Happy Days. Apart from the oil catch tank filling and overflowing - can't actually remember ever emptying it :oops:. The wear on the rear tyres was quite incredible considering there were only 7 runs glad I didn't use good ones.

Tried out my new GoPro and managed to capture one run :roll:

Video

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Re: Irish Clan

Post by Lotus-e-Clan »

Looked and sounded FAB.

So how did you compare? 8)
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Re: Irish Clan

Post by bks974c »

Midfield - too exuberant but went down well with the spectators.

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Re: Irish Clan

Post by Lotus-e-Clan »

bks974c wrote:Midfield - too exuberant but went down well with the spectators.

Scott
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Re: Irish Clan

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Re: Irish Clan

Post by Lotus-e-Clan »

Clan looks a lot better than the opposition that's for sure (especially looks good in green and yellow). Long live the Clan! 8)

Standing ovation from the crowd for exuberance is no less than expected! :lol:
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Re: Irish Clan

Post by ImpManiac »

Great video, Scott. 8)

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Re: Irish Clan

Post by bks974c »

Sunday 3rd April 2016 I took part in the Galloway Gallop a 170 mile tour around the same area Imp Ecosse is being held this year at Loch Ken. Including driving to and from the event was about 250 miles at an average of 30mpg.

They used some cracking roads which were open and flowing - superb driving roads, they also found some little used roads which were extremely rough at least for the Clan with its lowered and stiffened suspension. In fact I'd say they were worse than the 10 mile drive through the Raider's Road forest drive.

Report on the Caledonian Classic and Historic Motorsport
http://caledonianmsc.com/

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Re: Irish Clan

Post by bks974c »

Today 10th April was Monklands Sporting Car Clubs Season Warm up at Forrestburn Hillclimb, basically a track day.
For £30 you get multiple runs up the hill, I want along in the Clan and local member Keith too his Imp as he bottled taking his Westfield as there was rain in the forecast :lol: and my wee brother Craig was there in his 306 rallye.

In the end rain did not appear although there we a few spots now and again, there were a number of things I needed to do to the Clan before the event the main ones were replacing a doughnut which had suffered from the abuse a few weeks ago at Knockhill and the alternator as returning from the Galloway Gallop we were running out of electrickery. The alternator should have been simply enough but finding another that worked and fitted due to the different belt lengths etc proved time consuming and in the end put a standard pulley on rather than the large deep one previously fitted. This meant that I had to get up early to today and finish getting it ready but I made it.

Some videos from the day -


Just click on my name to see the rest.

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Re: Irish Clan

Post by ImpManiac »

That was a tidy drive, Scott. 8) How did your time compare with your previous? :?: If it is akin to a track day, is timing yourself frowned upon? :?:

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Re: Irish Clan

Post by bks974c »

Paul

Just from elapsed time on the video around 59s - 1.02, Craig in his 306 Rallye claims 56s however record is around 42s so some room for improvement.

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Re: Irish Clan

Post by bks974c »

Video from last nights track night at Knockhill, not a good start as fell off at the second corner absolutely no grip at the rear when I turned in, back end stepped out, corrected and ran off the track. It got better once warmed up.



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Re: Irish Clan

Post by colimp66 »

Looked like a good night Scott, shame about the wee off early on.
Cold tyres possibly?
Was that Keith out in his Westfield that you passed after the chicane?

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Re: Irish Clan

Post by Lotus-e-Clan »

The Mazdas looked twitchy too - must have been cold up there in Iceland.

What were to two cars ( a silver one chased by a white hatch) hooning at warp speed past everyone (was it a silver Porsche and a ?) Clan004
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Re: Irish Clan

Post by bks974c »

Col

Was first lap wasn't even trying just brining everything up to temp, yes cold tyres but suspect some form of contamination due to lying about for a couple of years unused - Yokohama A048's

Yes that was Keith in the Westfield - first time he has used it at Knockhill and first time out since he fell off the road in the rain so being a wee bit cautious.

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Re: Irish Clan

Post by bks974c »

Lotus-e-Clan wrote:The Mazdas looked twitchy too - must have been cold up there in Iceland.

What were to two cars ( a silver one chased by a white hatch) hooning at warp speed past everyone (was it a silver Porsche and a ?) Clan004
Think the mazda was trying to slide the rear but just ended up with a twitch :lol:

Yes couple of silver Porsches out, they all look the same to me but one was a convertible so I could tell them apart :D
the white hatch was a Megane 265 so that's 265 bhp.

Part 2

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Re: Irish Clan

Post by benwick3 »

What cam are you using and what is your change up point? I know my knowledge of Knockhill is limited but to me it seems that your acceleration is laboured due to you hanging on to the gears to beyond the point of max power of the cam. It could be because of the gear ratios you have but changing up earlier could result in a quicker time.

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Re: Irish Clan

Post by bks974c »

benwick3 wrote:What cam are you using and what is your change up point? I know my knowledge of Knockhill is limited but to me it seems that your acceleration is laboured due to you hanging on to the gears to beyond the point of max power of the cam. It could be because of the gear ratios you have but changing up earlier could result in a quicker time.

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It a fast road 998 with R20 cam Sport valves but fully ported and reshaped chamber, its a lovely torquey engine.

Changing up from 2nd to 3rd after the hairpin at 7000rpm indicated but that's the XR2 rev counter which is actually 8500 ish
The rest of the lap is taken in 3rd or 4th with the upchanges much earlier.

I'm running standard ratios with a quaife ATB I do have CR boxes but the SC ones are just too noisy for road use as with most things its a compromise.

Biggest improvement will come from better brakes still running drums all round and tend to be lifting early and coasting.

There is another reason its a little flat which will be revealed later.

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Re: Irish Clan

Post by benwick3 »

Scott,

8500 is too far for the R20 cam. I rarely exceed 8400 with my R22.

I realised that you were using standard ratios after reading back through the thread. The coasting was really evident and with that you're not making full use of the Quaife diff. As you say previously you need to be slow in and then quickly on the power and out.

How do you intend to upgrade the brakes? Drums do work well but have the inconvenience of needing constant adjustment. The addition of front discs will be more than adequate. I have discs all round on my orange Clan and there is no noticeable difference between that and the front disc/rear drum setup on my original red car. The important thing with the rear drums is decent rear shoes. I'm on my second set of VG95's in near on 20 years. On the front I run Viva discs and calipers and Greenstuff pads.

You will struggle with standard ratios. Lowered third and top are necessary but I understand your comments about the noise as I do use both of my Clans on the road with the red one being nowhere as noisy as the straight cut Jack Knight box in the orange one. There are some original lowered gear sets out there in helical form but they are rare. I have a box with helical gears and original rally ratios, including a raised first, and I have tried it and whilst better than the standard ratios it's not as good as the lowered third and top box. Would probably be OK with your engine spec.

Out of interest what jets etc are you using in your Webers?

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Re: Irish Clan

Post by bks974c »

Brakes are superb using Moose's comp lining no fade ever however they do wear quickly when on track and then need adjusting hence the reason I don't lean on them too heavily. Remember a track day is longer than most races I usually do 30 minute sessions 25 ish miles and come in a check it over.

The new Clan has the Fiesta disc conversion on the front and will see how that performs but fancy discs all round but better to get it finished first.

I have a helical CR works box but again due to doing quite a few road runs say 250miles it is nicer when you don't have to have the engine screaming behind you to keep up with traffic on the motorway etc.

Carbs from memory are 28 chokes 9f6 115mains as I say its set up for torque not power.

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Re: Irish Clan

Post by benwick3 »

Scott,

My races are not short - I'm used to 40minutes. On the Continent it was also two races in a day.

My engines have always been built for torque rather than outright power. It's better on the racetrack as well as the road.

As I said in my opinion it's not worth fitting discs all round although hard rear shoes are a necessity. As a guide I find a set of pads last me a season with the rear shoes being adjusted at the start of the season and not touched again until after the finish.

Are the carb details for Webers of Dellorto's?

If Webers you could go to 30m chokes and F16 Emulsion Tubes and retain the 115 mains, This will remain torquey and have a little more top end.

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Re: Irish Clan

Post by bks974c »

Pete

The comment was a reflection on the need to adjusted the brakes during a 170 miles track day, only needing to adjust then once a season sounds good but the current ones are excellent from cold so ideal for road use with no fade when hot. Compromises

The carbs are Webers and yes F16's emulsion tubes, lots of time was spent getting to the current set up, it is now has no flat spots or hesitate and will pull 30mph in top and accelerate cleanly to the red line smoothly, idles at 1000rpm ideal for a road car have tried 30's and OK but not as good as the current set up again compromises.

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Re: Irish Clan

Post by bks974c »

Clan Mot'd today after a false start yesterday. Stalled during the test and wouldn't restart went down
and got it going after a bit of messing about - couldn't find anything wrong and been fine since.

It's now running an 875 L4 which I re-build with a little porting and raised compression ratio - goes very nicely.
The reason for the engine swap was a holed piston at the last track day.
20160506_152815.jpg
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Suspect this was the reason for the non charging and buying new alloy pulleys
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have no need for two Clans and Imps.

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Re: Irish Clan

Post by Lotus-e-Clan »

Your piston damage looks just like the damage I had with the first set of Italian 1040 pistons that lasted less than 1000 miles from new -the crown cracked through starting from a gudgeon pin bore. ..combustion then blew/burnt a hole through the crack.

Image

Replacement Powermax pistons still going strong more than 20K miles later. :D
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Re: Irish Clan

Post by bks974c »

Exactly the same - crack runs from pin hole. landing ridge also broken but it has done thousands of miles and loads of trackdays

Since the Autosolo where it was thoroughly caned it had been getting a bit smokier and was due to be stripped anyway.

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Re: Irish Clan

Post by bks974c »

Today thought I'd replace the grumbly rear wheel bearing - couple of hours should see it done.

No chance - still nor finished. :cry: :evil:

Hub would not separate from the drive shaft - tried my hub puller now destroyed.

Tried a bit of heat but no use.

Tried driving the shaft backwards through the hub and bearings = gradually increasing hitting tool in size until I was swing a 14lb sledge hammer all I achieved was a mushroomed nut and driveshaft.

So I got the angle grinder out and cut of the remains of the nut and tried the sledge hammer again - nada.

Cut some slots in the hub flange and started beating it again - nothing no movement not even a thou.

Time to take the arm off - at least that was straight forward.

On the bench cut the flange until all that was left was this
20160726_210924.jpg
20160726_210938.jpg
20160726_210950.jpg
and finally the shaft starts to move.

Then its a case of gathering up all the bits, dismantling a spare shaft for the splined end and flange.

Flange needs drilled out to take the longer Ford wheel studs.

Got the arm back on, drive shaft fitted but getting a bit late for making noise so finish up.

Hopefully get it finished tomorrow evening if its not raining.

Scott
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Re: Irish Clan

Post by colin rooney »

oh some job that mate hope you get it sorted well i know u will

col
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Re: Irish Clan

Post by bks974c »

colin rooney wrote:oh some job that mate hope you get it sorted well i know u will

col
Col

Thanks, I've never come across one this stubborn before especially since the driveshaft was changed in April 2015 as the standard one had twisted.

Scott
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Re: Irish Clan

Post by bks974c »

All back together and bearing noise gone :D

Couple of small things to attend to and should be all good for the National.

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Re: Irish Clan

Post by ImpManiac »

Well done, Scott. That was a tough one! :shock:

Hopefully see you at the national. :wink:

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Re: Irish Clan

Post by bks974c »

Clan being getting a fair bit of use as been out somewhere every weekend for last month or so.
Today was the End of Season track day at Forrestburn - dry with plenty of grip and got about 20 runs so excellent value.

875 engine lacks the urge of the 998 so had more time to get the lines correct fun never the less.

Couple of the runs



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Re: Irish Clan

Post by mikeC »

That looks a super course - is Forrestburn used competitively, or only for track days?
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Re: Irish Clan

Post by bks974c »

mikeC wrote:That looks a super course - is Forrestburn used competitively, or only for track days?
Its a proper Hillclimb course whitch the club uses for track days, production car trials and autotests to help the funds.

http://www.mscc.org.uk/

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Re: Irish Clan

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It's great to see you're using the Clan, Scott. :D I like the look of Forrestburn!

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Re: Irish Clan

Post by bks974c »

Clan has been parked on the trailer for the winter but had to dig out the trailer for my brother to use. Clan fired up after a couple of turns and idled nicely :D
Will give it a check over and retax it for the 1st April then its ready for Imp Ecosse.

Also got the engine back into the Alfa 75 and started although still work to do as it doesn't idle smoothly. :D :D

Scott
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