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macgtech
Original Poster
607 posts
28 months
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This coming weekend (18th and 19th Aug) MacG Racing will be competing in round 7 of the Britcar British Endurance Championship in their Ultima GTR. Armed with a new engine, new sequential transmission courtesy of Albins, and a new drivetrain including clutch, driveshafts, joints, stub shafts, bearings and drive flanges, the major weakpoint in the car has been addressed. Testing was completed early last week on the new transmission and it performed flawlessly, also demonstrating a significant performance improvement. Several other developments have also been made to the car to improve reliability. More details on the event can be found here: http://britcar24hr.co.uk/cms/e107_plugins/content/...A live timing link will be posted in due course. Hopefully see a few of you guys there!
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Storer
1,995 posts
84 months
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Hi Jonny.
Planning to come on Sunday and cheer you on.
That plan may change is the weather looks better on Saturday.
Will we be able to park in or near the pits? Happy to pay the entrance fee but if you can get any necessary passes to get pit parking they would be much appreciated.
Best of luck and see you at the weekend.
Paul
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macgtech
Original Poster
607 posts
28 months
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Storer said: Hi Jonny.
Planning to come on Sunday and cheer you on.
That plan may change is the weather looks better on Saturday.
Will we be able to park in or near the pits? Happy to pay the entrance fee but if you can get any necessary passes to get pit parking they would be much appreciated.
Best of luck and see you at the weekend.
Paul Hi Paul, Would certainly be good to see you! We are normally short on passes ourselves but if I remember correctly you can get into the paddock at Snett without an issue. If we get any spares I will let you know.
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Storer
1,995 posts
84 months
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OK, thanks Jonny
Make us proud.
Paul
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macgtech
Original Poster
607 posts
28 months
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Storer
1,995 posts
84 months
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Am I the only one going. Come on guys, cheap entrance fee (£13 I think) with reasonable food in the Tyrells restaurant. I am sure Jonny will walk us round the car if things are going well. Maybe with enough support he could make us proud.
Paul
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Ult-Jim
275 posts
59 months
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What's the schedule in Sept & Oct, can only make it then, very keen to see the car in action?
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Storer
1,995 posts
84 months
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Coming tomorrow and possibly Sunday too Jonny.
Paul
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Pedders
85 posts
153 months
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Car is looking in good shape over on the teams Facebook page. Am going to head on down to Snett tomorrow to see it in action and enjoy the sunshine.
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Storer
1,995 posts
84 months
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All fingers crossed for tomorrow. The new gearbox is a work of art as is the triple plate clutch. A larger transmission oil cooler solved excessive gearbox oil temperature and the new exhaust makes it one of the quietest cars out there.
Weather looks set fine so any others fancy a sun tan top-up!
Paul
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macgtech
Original Poster
607 posts
28 months
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Hi guys,
Thanks for your support, in all it was a relatively successful day. The gearbox acted impeccably, as did the rest of the car, the only issue being the starter overheated and wasn't capable of turning the engine over. Unfortunately this was compounded by having to take more pitstops than we had planned due to the drivers suffering from the heat, and a small spin which lost us 12 minutes as we needed to bump start the car.
Ended up 12th mainly due to the spin, but showed great pace throughout and the car was happy at the sharp end of the field. We certainly turned some heads.
Next race is potentially the 24hr on 21-23rd September, assuming we find the drivers and sponsors necessary for the event!
Pics and a full report will be posted up soon.
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Storer
1,995 posts
84 months
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Hi Jonny
You were rather occupied after the race so I didn't get a chance to congratulate you on completing the race. Well done.
I could tell it was a little warm in the car from the fact the door was open during the Safety Car laps!!!!
I notice many of the other cars had a small scoop on the roof feeding air down onto the driver. 33 degrees is cooler than 45 degrees!
The gearbox did it's stuff so money well spent. With a bit more heat management, which a lot of the other teams need too, you will have a very competitive car.
Good luck for Silverstone and thanks for the access.
Paul
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macgtech
Original Poster
607 posts
28 months
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Storer said: Hi Jonny
You were rather occupied after the race so I didn't get a chance to congratulate you on completing the race. Well done.
I could tell it was a little warm in the car from the fact the door was open during the Safety Car laps!!!!
I notice many of the other cars had a small scoop on the roof feeding air down onto the driver. 33 degrees is cooler than 45 degrees!
The gearbox did it's stuff so money well spent. With a bit more heat management, which a lot of the other teams need too, you will have a very competitive car.
Good luck for Silverstone and thanks for the access.
Paul Hi Paul, Thanks very much. Just about cooled down now although still dehydrated! The gearbox was a big success, we certainly stretched the car to its limit in terms of heat and reliability this weekend and with the exception of the starter motor, it faired well. Few tweaks and we should be ready for the 24hr!
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Pedders
85 posts
153 months
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As a spectator and Ultima fan, yesterday watching the Britcar race at Snetterton was fantastic. Highlights were: -seeing the Ultima qualify in fifth place; -nosing around the pits after qualifying, with the Team being happy to invite a complete stranger (i.e. me) to come into the garage and have a closer look at the car. I was amazed to see how familiar it looked under the bodywork, complete with carpet  and that very cool gearbox; -the start and seeing the little Ultima tearing into the first corner with the front runners, and doing well to hold onto its place; -watching the car move momentarily up into fourth as the Ginetta in front fell off the track; -seeing that it had the initial pace to keep the chasing Ferrari 458 at bay; The safety car then came out, and the Ultima pitted. At that point, I kinda lost the thread of what was happening in the race! Am looking forward to seeing a race report, and hopefully finding out what led to the spin in the last hour of the race. The fantastic weather didn't do any harm either! This was my first attendance at a Britcar race and for an Ultima enthusiast especially, I can thoroughly recommend it. Seeing the Ultima blasting around the track in competion, in such a similar guise as to what I am wating to arrive to start building really adds to the fun of it. Some bad photos attached...     
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UltimaCH
1,724 posts
58 months
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Great to hear all the good news. Congratulations to all of the Team. From the photos, it certainly looks like it corners rather flattish, so that looks good indeed. Heat will always be a problem in a racing environnement, be it the mechanical parts and most important the driver!
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macgtech
Original Poster
607 posts
28 months
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Hi Pedders,
Thanks for your support. I am glad you enjoyed your day, it really is a great event and the atmosphere is always good, its just such a shame that its not promoted as well as it could be by the circuits.
We had a plan to stick to which involved consistently driving at a predetermined pace and had a robust pitstop strategy - it all went well initially however the other driver was suffering with severe heat stroke, meaning we had to pit 3 times more than we has originally planned. The spin at the end was simply down to oil on the track, but the car wouldn't restart as the starter was cooked - frustrating as that destroyed the race for us really.
However, the main thing for us was that all the improvements we made worked - planning for driver issues is always difficult but that is another lesson learnt. We got through a weekend where many of the cars had major issues (engine/diff/gearbox failures) due to the heat and although things in the cab were way too toasty, everything in the engine bay seemed to cope well (just!).
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macgtech
Original Poster
607 posts
28 months
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UltimaCH
1,724 posts
58 months
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Great video and I like that sequential box, but what on earth is that deep rumble you hear on deceleration? Diff and/or LSD perhaps?
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356Speedster
1,635 posts
100 months
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macgtech said: Great vid Johnny! I wasn't able to watch it all at work, but is that a RaceTech Dash2 you've got there? Assuming it is and assuming you're not using a stand alone management system, is it connected to a GM ECU? I'm having trouble getting to all the data parameters on mine and could do with some assistance ;-)
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macgtech
Original Poster
607 posts
28 months
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UltimaCH said: Great video and I like that sequential box, but what on earth is that deep rumble you hear on deceleration? Diff and/or LSD perhaps? I would imagine its just the overrun? We run fuel cut on overrun so it does tend to sound a little different
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