Scratchbuilt 'Kiwi 40' goes racing.

Russ Noble

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Five years in the making and after a couple of aborted attempts in the last month, last Sunday my Kiwi 40 finally took to the track in anger.

It was a low key club day at Ruapuna, my local track, and I was running in the class for Classic Saloons. There were 36 cars on the grid, the quickest being an ex TansAm Camaro. There were a couple of quick RX7 Batmobiles, a V12 XJS TWR replica, 3 other Camaros, a Monaro, several BDA Escorts, an indecently quick Alfa 105 coupe, a couple of Chargers and a Falcon, and a whole host of lesser stuff. This wasn't a bad turn out for a club day.

The single seater class too had some good cars. An F1 M23 McLaren, a Lola T430, a couple of McLaren M4As, a Brabham BT29 along with the usual gaggle of Formula Fords and FF2000s

The day was warm with a strong blustery wind from time to time. I went out for the 15 minute qualifying session but there were too many cars on the track to post a really good time, same for everybody though. With four minutes to go the session was red flagged and my on board lap timer showed I had done a 1:40.9 so I decided I wasn't going to be able to improve on that so called it a day. The most pleasing feature of qualifying was that my missfire problem had indeed been cured.

Refueled and waited for the first race, an 8 lap scratch. For some reason I was only credited with a 1:45.1 best qualifying lap which had me 8th on the grid. I got a reasonable start and by the second lap had worked my way up to 4th when the race was red flagged. The restart was a real disorganised botchup, I wound up 10th on the restart grid, not that it mattered as I stalled on the restart! I got it going again but I couldn't go anywhere because the car in front of me had done the same thing and now the tail of the field was streaming past. I couldn't get out to go round him until everyone had gone by. That was an interesting drive, particularly the restart lap on cold tyres! In the corner off the main straight a guy in a BDA Escort tried to take my nose off with his steel flares, tyre marks along the front clip and a couple of tears in the fibreglas. The good thing about fibreglass is that it springs back....Had a minor grass cutting expedition as I came into one fast corner too hot, offline, and ran out of track. Went miles off into the boonies but managed to keep it straight and got it all back together but not before I got repassed by the guy I had just passed. Not for long though.....I eventually came through to 5th in that race which I felt was OK considering it was my first race for 5 years, and first race for the car.

Back in the pits refueled, cleaned the Escort tyre marks off the front of the car and put one turn more bias towards the rear brakes as the fronts were locking and the pedal was starting to go away.

The second race was a 6 lap handicap. I was off grid 44 on 80 seconds and 9th flag drop. Thats a long way back on the grid and initially I didn't realise I couldn't see the flag as it was obscured by the side mirror of the car in front! So I had no idea when to start! Because of the unusually large number of entries the organisers systems were overstretched and the grid was not posted up to see beforehand, we were only advised of our grid positions and handicaps as we went out onto the track. So I had no idea how my handicap related to those around me. So when the cars in front of me left, so did I!! However I later found they were off 70 seconds, I'd jumped the start by 10 seconds! Must try that again sometime..... Had a good go with the Batmobile through the traffic, we swapped positions several times as we got tied up with slower cars. I had more grunt and better brakes but he was edging away from me in the turns with a better sorted car (Thats my story anyway, he was probably a better driver!) On the last lap I was badly baulked by a slow Commodore and the Bat got enough of a lead that I was unable to out grunt him to the finish line. 1.2 seconds was all that was in it though. So P2 in the second race was a good result.

The quick TransAm had fallen by the wayside in the first race and was out for the day. The new brake settings were spot on and with the fronts doing less relative work, the pedal stayed firm. The car was pulling up harder but I was starting to get some front wheel tramp so back in the pits we had a good look around the front but could find nothing loose or damaged. In hindsight it was probably not enough shock that was the trouble, I have been concentrating on camber and tyre pressures and haven't got around to playing with the shock settings yet, and they are all on full soft both ways. I should have thought of that and tweaked them up before the last race.

For some reason the handicappers were smiling on me today. The last race, another 6 lapper had me on grid 34 off 60 seconds. I had moved up the grid because nonfinishers in the previous race must start off the back, but the 60sec handicap was too good to be true! I managed to pick off all the cars in front of me and came through to win by 7 sec.

The car got a lot of favourable comment, it looked good and went well and is, I am told, impressively quiet. My best lap of the day was 1:36.9, so all in all a good day.
 
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Randy V

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:thumbsup::thumbsup: GOOD JOB RUSS!!! :thumbsup::thumbsup:

You and the crew must be very proud!

Any pictures? Not that we require proof, but it would sure be nice to see your car on the grid and then carrying the checkers!
 
Great job Russ. I really enjoyed your build and am now enjoying your race stories. Some pics of the car on the grid would be great.:thumbsup:
 
Thats a fantastic first outing! Well done.
I too have enjoyed your build thread, and would love to see some piccies of the '40 racing in anger.

Well done!

Graham.
 
Don´t know the handicap rules but on a 6 lapper with a handicap of 60s and a win by 7 s means you where 11 s faster per lap than the rest in front of you and faster than the cars with higher handicaps ( faster laptimes than you in qualification).
Is my understanding correct ? If so very impressive and congratulations.

TOM
 
Hey Russ,
Fantastic news! Not only to finish the car, but to have a successful track outing first up. You must be well pleased.
I look forward to hearing of your track exploits in 2010.
 
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Hey Russ,
Fantastic news! Not only to finish the car, but to have a successful track outing first up. You must be well pleased.
I look forward to hearing of your track exploits in 2001.

I & I am sure Russ & others as well would like to know more about winding the clock back to 2001.:)
 

Randy V

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I & I am sure Russ & others as well would like to know more about winding the clock back to 2001.:)


Coupla Flux Capacitors, a bolt of lightning and 88 MPH and your---- THERE! :thumbsup:
 

Pete McCluskey.

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Good Onya Russ, terrific write up, next time crank up the onboard camera.. Haven't got one? With a bit of luck Santa reads this forum.
 

Russ Noble

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Thanks for all the supportive comments guys.

Tom, you've basically got it right except that I'm only that much faster compared to the slowest guys off the front. The guys immediately in front of me are not much slower and the ones behind should be faster. Who wins is determined more by the whims of the handicappers than the abilities of the drivers. Thus handicap racing whilst good fun is not really 'proper' racing. But it does give the guys who turn up every time in slower cars the opportunity to drive for and often get a win. In handicap races everyone is going for it because everyone is in with a chance for that win. And that's a good thing.

When I said I was baulked by the Commodore, he was driving his heart out passing a yet slower car and that left no room for me to go through. He had track position and was entitled to use which ever part of the track he liked. Often guys will make room for the faster cars coming through, but they don't have to....He came up to me afterwards and apologised, he had let the Batman through but hadn't seen me right behind, due to being a lot lower. We all drive our nuts off but at the end of the day it's all about going out there and doing your best with whatever you've got. And he certainly was, and that's all good.

And talking of apologies, I also had a guy come up and apologise for hitting me in the hairpin, he outbraked himself and inadvertently used me to slow down. I didn't know that he had, but there were blue paint marks on the front of his car and on inspection my rear fibreglass was broken. Just another racing incident amongst guys who are trying really hard. It happens, and generally no one gets too upset about it. Except for our 'laidback MG', eh Ross!

Pete, I have got a camera mounted up but when I push the power button it doesn't go! Quite frankly, I've had more important issues to deal with and the camera is very much a non essential. I hope to have it going for the next meeting in early Jan.

That is the Wigram F5000 Revival Meeting 8th-10th Jan. A full blown promoted meeting featuring of course those wonderful F5000s. The last race of the day is for Club Saloons, basically anything with a roof and four wheels is eligible, so I have entered that.

There are also three six lap OSCA races and, although my car is not strictly eligible, the guys racing OSCA want me to run with them too. So I have also entered for those races. Some (most?) of them will also be entered in the Club Saloons race.

OSCA stands for Open Saloon Car Assoc. It was set up many years ago to provide racing for our traditional kiwi hybrids at a time when MANZ decided the way of the future was to adopt internationally recognised classes for our national race meetings and championships. However you can't stamp out kiwi ingenuity nor the mindset of some people that we can build faster cars cheaper than we could buy and race these heavily regulated international spec cars.

At that time OSCA catered for a plethora of V8, usually Chevy, transplants into things like Anglias, Escorts, Cortinas, Capris, Vivas, Imps, Dauphines, Victors, Zephyrs etc. Scary thought really! Not to mention a couple of Twin Cam powered Anglia 'breadvans'. These days there are a lot of modern Japanese hybrids with big turbo motors and also some American ex TransAm cars. So some pretty quick combos that will make my car look totally slow. Should be an entertaining weekend.......

I don't have any action pics from the Ruapuna club meeting but for local guys who want to watch, on Saturday night and again on Tuesday night CTV is televising a one hour special on the racing .

If you want some pics of the car in action, I have just got hold of some from my test day at Levels last month. I will post them on my build log.
 
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Russ Noble

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I don't have any action pics from the Ruapuna club meeting but for local guys who want to watch, on Saturday night and again on Tuesday night CTV is televising a one hour special on the racing .

Sorry guys, got that wrong! The TV broadcasts will be this weekend. A one hour special at 8pm this Saturday (Boxing Day) with a repeat at 1:30pm on the Sunday.

Pete, I think I got the camera working last night! Fingers crossed......
 

Russ Noble

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Pics from the Dec 13 Ruapuna meeting. The white RX7 is no slug and was always in close attendance as we came through the field. The car gets better with every race as we continue to dial it in.

Last pic is the fastest car in the field. TransAm Camaro about 1985 vintage, I think, and super quick. I'll have to sprout some serious aero and slicks to get anywhere near him! This is the sort of machinery I'll be up against in the OSCA races in a couple of weeks.
 

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Randy V

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Great job Russ!!!!

Loved the shot of the two Minis dueling for the corner behind you..

Those lights on your car - Decals?
 
Russ,
Great progress on the car. That first pic of coming through the corner with a little squat and power on is my most favorite pose of any GT-40!!

Bill
 
Russ,
That first pic of coming through the corner with a little squat and power on is my most favorite pose of any GT-40!!

Bill,if you have a closer look on the 2nd photo, after cornering you will noticed that the door top starts to lift once it head on the straight. :shocked:
Lim
 

Russ Noble

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Yes Randy, good eye for detail, they are indeed decals that we fitted the night before. Still doing the finishing touches along with sorting out the problems and setup. This week I hope to tidy up the body a bit and give it a Navy Blue stripe and moustache as well as getting the drive train and suspension re-installed and de-camber the front wheels a little more.

The guys in the Minis are out there every meeting going hammer and tongs. They have a ball!

Bill, I like that first pic too, and the car feels as good from the inside as it looks from the outside. Have emailed you a hi res copy of that one.

Most of the pics are taken in a slowish right hander, maybe 60mph and there is no door lift, the pic with the door lift mentioned by Lim is coming onto the main straight at about 85 mph. The lift is probably a lot greater at the end of the straight which is about 160+ mph. I'm not really sure of the actual speed as the sweeper off the end of that staight is a bit bumpy and it's more important to try and keep it on the track than to distract my concentration by looking at the tacho!

The interesting thing is that the door lift is totally un-noticable from inside, I'm not sure whether to do anything about it, or leave it as is, since there must presumably be a beneficial effect on cockpit cooling and ventilation.
 

Russ Noble

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Re: Wigram F5000 Revival meeting

The weather forecast for Wigram Revival weekend at Ruapuna was less than enticing, overcast and showers with strong winds but fortunately in the end the forecasters got the time frame wrong. The weather was constantly threatening to turn bad, but the worst did not actually happen until late Sunday.

The schedule for the weekend was free practice (not officially timed) on the Friday. Qualifying and racing on the Saturday. More racing on the Sunday.

This meeting for me was to be the final shakedown designed to have the car race ready for the hectic SFOS series throughout February. It was to be a check that all the work we had done since the Dec race meeting was performing as intended. So the plan was to do the race meeting, polish it and put it away until 5 Feb.

I had entered two classes for this weekend, OSCA and Allcomers. All the way through the program for qualifying and races the Allcomers were next up after OSCA. So finish the OSCA race and return via pit lane to form up on the grid for the Allcomers. No chance to do anything significant to the car in between. After that quite a break while the other classes ran then back into it.

In Friday's free practice I took the opportunity to get in a few laps and try out the suspension alterations I had made. Basically I had reduced the camber to -0.5° all round, based on tyre wear patterns, also reduced tyre pressures further to 17 psi cold. Took all the rear caster off, so running zero caster at the back.

The car felt much more stable on the bumps, but after a few laps the water temp started to come up, so back to the pits to investigate. It turned out to be a water loss problem and it looked like the cap was the culprit. We thought it was the seal so did some quick modifications to it and went out for the next session. Just the same, bummer! I had never been particularly happy with the standard type 13 psi cap and decided to upgrade to a STANT lever action 25 psi unit which we shot into town to get. By the time we got back testing was over for the day but I warmed the car up and it was obvious the new cap was sealing as I could hear the pressure release when the lever was lifted. The brakes needed some adjustment, the fronts had been locking slightly, so I took half a turn off those and we were done. So all good and ready for Saturday qualifying and races.

In the test sessions I was trying fairly hard but had a couple of spins which resulted in minor cosmetic damage, however early on I had recorded a 1:33.4 which was 3½ seconds faster than my previous best. Obviously the work we had done on the car in the preceding weeks was paying off.

The game plan for the Sat 30 minute qualifying sessions was to go out and try and post a good time for OSCA then come in early, check things over and go out a little later in the immediately following Allcomers session. However in the OSCA session the water temp soon became a problem and the car became a little loose as water pushed out onto the rear tyre. So back into the pits where it was apparent that the cap was holding good pressure but there was excessive pressure in the system expelling the water. That was not a good sign....In the meantime I still needed to post a qualifying time for the Allcomers, so topped the water up and went out and did three laps. Not unexpectedly, still getting water on the back tyre.

So I had only posted a 1:35.7 for OSCA and 1:37.3 for Allcomers. The OSCA time had me 18th on the grid for those races and the Allcomers time gave me 5th there. I knew now there was no way I was going to be able to do two consecutive races so I had to decide whether to do, OSCA or Allcomers. With Allcomers there was a pretty good chance of podium finishes but OSCA racing was more of an exciting challenge, all be it at the other end of the field. In the end I opted for OSCA.

I had two hours before the first race so decided to relocate the water catch tank out the back away from the rear wheel but needed a longer hose to do so. Maurice Butler was up for the day and offered to go into town to Repco for the required hose. He returned, and it was plumbed up and we were ready to go. I must say with Maurice up from Timaru, John over from the Coast and Lim all there, it was nice to be able to relax and take it easy while all the work was being done.

So, lined up on the grid for the first OSCA race and away we went, nothing spectacular but after three laps the temp started to get up so I dropped the revs a bit but another lap and it was too high for comfort so switched it off and parked it on the infield to be towed back after the race. That was it for the day, couldn't even get through one race!

Nevertheless the car continues to attract attention and favourable comment. The pressure is now on to remedy the problem and get in some testing before the SKOPE and SFOS.

I had the benefit at this meeting of Lims pyrometer so he was taking tyre temps, and it looks like I may need to drop the camber back further to about -¼°, and possibly slightly less air in the tyres too. But one thing at a time, we are getting close.

Not having a car to race meant I managed to watch all the races I wanted to for a change. The F5000s were particularly impressive, there were 26 on the grid and the roar and vibration at the rolling start really has to be experienced to be believed. Lolas, McRaes, Elfins, Beggs, Marchs, Chevrons, a Matich, and an interloper in the form of a F1 McLaren M23. Also on display but not racing were a couple of other McLarens, an M10A and an Offy powered (I think) Indycar, can't remember it's model #. Here's a link to some of the F5000 photos from the meeting Flickr: Warwick Robinson's Photostream
 
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Russ Noble

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Over three months now since the last successful outing in the car, but not for lack of trying. I missed all three SFOS rounds in Feb due to the water loss problems and last week's OSCA round because of a perceived oil pressure problem.

However after five days fairly solid work removing, stripping, reassembling and refitting the motor, by last Thursday night the car was loaded onto the trailer ready to head off to Levels early Friday morning. The weather forecast for the weekend was predicting initially good weather for Friday followed by rain and clearing to sunshine on Sunday.

Its a two hour trip to Timaru and I wanted to arrive there about 8ish so that necessitated leaving about 6am. Lim had taken the Friday off work but was coming down in a seperate car in convoy as his plan was to return to Christchurch each evening.

The trip south was not without its dramas as we shredded a tyre on the trailer and had to stop and fit a spare. In the end we arrived at Levels about 8:30 which gave us time to unload, get set up, and have the car warmed up and ready to go for our first OSCA test session scheduled for 9:40.

The weather was cold and there had been some resealing done to two sections of the track which made it a bit slippery in those places. My previous best at Levels back in Nov was a 1:16.614. The first test session netted a 1:14.763. Working from the tyre temps I decided to take another ¼° off the right rear camber and in the second session managed a 1:12.943. The third session I pushed a little harder and recorded a 1:12.205.

These were about eight lap test sessions and I had a couple of relatively undramatic spins on the way to these times. After the bad luck of the last three months I desperately wanted to start a race, and preferably finish it as well, so was not pushing it as hard as I might on certain sections of the track where losing it puts you into the wall. So that was Friday.

I mentioned to Lim that a more conventional gear lever and knob might have a nicer 'feel' than the grinder side handle that I had been using reasonably effectively to date and he decided since he was returning home for the night he would turn up a knob and make a rod to mount it on.

My mate John from the Coast was unable to come over for this meeting so with it being just myself staying overnight there was not a lot of point in getting a motel so I intended to kip down overnight in the service vehicle at the track. I hadn't done that before but there's quite a little community of racers that stay overnight at the track in motorhomes, tow vehicles, caravans and tents. Can be quite social if you want it to be....However since I only had four hours sleep the previous night and not much more the rest of the week I decided to have an early night. There are showers and a washing machine available 24hrs in the clubrooms so it's all relatively civilised. A really good effort by Levels owners, the South Canterbury Car Club.

Saturday's program was qualifying and one scratch race. Sunday's was a reverse grid race and a handicap race. Lim arrived back at the track Sat morning complete with a very nice gear knob that he had turned up out of some knotty Manuka and a stud of the correct length to mount it on. It was duly fitted and I headed out for qualifying.

I knew I was going to be the slowest in the OSCA qualifying and ever mindful of the desire not to do anything stupid I drove conservatively to set a 1:12.761. But that actually had me 8th on the grid, although only a small field of eleven cars. Only because three of the faster cars posted poor qualifying times. The track was a bit tricky...

My first and only race on Saturday was about 3pm and there had been rain off and on all day, the track was variable and was going to be a bit of a challenge. My grid position for the race was on the 'dry line' so I expected relatively good traction and I decided to try a second gear launch for the first time. 2nd gear is good for over 90mph @6500. When the flag dropped I let the clutch go gently at about 3500 revs and got a lightning start, passing several cars on the short run down to turn one. That position wasn't to last though as I was slower under braking and cornering and was slowly picked off by all the other cars as they had the benefit of wings and slicks. So that was Saturday, last in the scratch race! Car was in good shape though....

For Sunday I decided to drop the tyres down 1psi before the reverse grid race. I had grid 4 due to the afore mentioned qualifying times and did the 2nd gear lauch again. Worked good, but got boxed in behind a TransAm Mustang in front of me who momentarily sat on the line wheel spinning. I think I wound up fifth into the first corner and I was mindful that I was about to be gobbled up by all the faster cars behind me. That only took a couple of laps and on the start of the fourth lap I had a lurid spin when I lost concentration whilst braking and changing down for the corner off the start/finish straight. The cause of the distraction was the new gear lever stud snapping off in the shift rod. I guess you just can't beat a grinder handle after all!! So unable to select gears, that race was all over.... I was already running last anyway.

The final race was an 8 lap handicap race with me off go and the fastest pair of cars off 48 seconds however with my best time of 1:12.2 and theirs of 1:05 the maths didn't look favourable and some of the cars that were a couple of seconds faster than me were right behind off 12 sec. However it was the last race of the weekend and with the old grinder handle back in place I decided to go for it. The track was fully dry and the second gear launch was becoming more familiar. With no-one in front of me the thing just took off like a rocket and I managed to stay in front until the penultimate lap when the two quick cars slipped through together under braking just before the corner onto the long back straight. Then past the start/finish again and the "last lap" board was hung out, could I hang onto P3 for that last lap? I sure as hell was going to try......I made the grade, no-one else got past and I had a best lap of 1:11.443.

So not a bad weekend, culminating in a lucky podium. The car is blindingly fast off the line in 2nd, easily the fastest starting OSCA car! And after being passed just before the straight, although my exit speed from the corner was slower than theirs they only opened out a couple of seconds or so down the straight. Not to say that I had the same power, they obviously had a lot more drag due to the down force and greater frontal area and were carrying maybe an extra 200kgs also.

There's still a bit more in the driving too, I've never had anything with the sheer grunt this thing has got and I am sure there are places I can squeeze the pedal harder, earlier. I'm still learning how to feed the power in and erring on the cautious in the meantime.....

Next race is a fortnight's time, Ruapuna Club Day where I'll be running in Classics, hopefully at the other end of the field. Then a week to another Classic race meeeting at Ruapuna, and a week later the final OSCA round, again at Timaru.
 
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Hi Russ, Are you finding the 3 gears are enough? and what is the Rpm drop between the gears. I have been plugging away at that Gear Calculator program you gave me a while back and the box I'm using has a worse 1st gear than yours but the other 3 are not so bad about 3000rpm between changes, is this comparable to yours?

Sounds like you had a ball and would love to see it run, what is the date of that last race meeting? it sounds like it could be the week I come home, the same as I did that time I came and saw you, Let me know I might be able to do the same thing.

Cheers Leonmac
 
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