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1Tristan CLIFFE175 (186)
2Malcolm SCOTT118
3Anthony BISHOP65
4Antonio IMPIERI64
5Richard PURCELL52
6Graham READ40

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Posts Tagged ‘engine’


I have decided to keep out of the various discussions going on in the world of Monoposto – whether or not Yunous Amiere is the next Michael Schumacher; whether BARC Formula Renault is a championship for career drivers that aren’t good enough to get to Formula 3; whether not liking Lewis Hamilton (because he’s overrated) and Samier makes me a racist; or whether a Formula Renault without a restrictor would be competitive or unbeatable (clearly the latter, all other things being equal).

Instead I want to set the record straight regarding the so called Gentlemen’s Agreement that was discussed in 2009, as it seems to be the source of several misunderstandings by people that were nothing to do with it and by people that claim to have discussed the matter with those involved directly.

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Last Updated on Monday, 16 May 2011 03:53

Apologies to those that actually visit this site in the vain hope that I’ll write something. I’ve been meaning to for months, but never actually finished writing a post. I have several drafts, but by the time I get anywhere near finishing it it’s out of date. So the quietness has continued. Hopefully until now (if I finish this!).

Tony's tub in primerThe last time I wrote about the cars we were just reassembling the new car for Tony Bishop. Well, that car is now complete, and has been raced at the last two meetings of the 2011 championship.

Once the car was finished, and seats were made, and engines were dyno’d and mapped etcetera, Tony had a test day at Snetterton on the 2nd March. Most things seemed to work quite well, despite old tyres and being new to H-pattern gear changes, and Tony's car nearing completionTony was getting more and more comfortable in the car. A few things that weren’t good enough we’re noted to be fixed, one of which was the gear change that Tony was finding very awkward. Alas, during the penultimate session of the day, Tony accidentally shifted from 4th to 3rd rather than 5th; the revs jumped to 8500rpm, the valves touch the pistons, and an overhaul was needed.

In the two weeks between that test and the first race the engine was fixed, and more stuff was done to the car, partly to improve stuff that was discovered in the test, and partly to implement stuff that we didn’t have time to do properly during the proper rebuild. But we finished the car, and arrived at Snetterton for the first meeting of the year.

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Last Updated on Thursday, 16 June 2011 05:33

Busy is my middle name. Our own car, the F398, is back together and has been running regularly whilst revised warm up and idle control routines have been added to the ECU, along with some analysis on the viability of fitting larger injectors to the throttle bodies – it is possible that the misfire we suffered from throughout 2010 was caused by the current injectors being unable to supply the additional fuel required during high rev throttle applications due to a lack of flow rate. The car now starts easily from very cold and from hot, and idles smoothly with good fuelling as the ambient and coolant temperatures increase. Until we get on the track in February (hopefully) we won’t be able to make much progress on the fuelling elsewhere, but by the end of 2010 it was pretty good. Since writing the first part of this paragraph, I have fitted larger injectors, which will give plenty of head-room with regards to injector opening times. I’ll also be lowering the fuel pressure to give the fuel pump an easier time, which will also give the battery an easier time. And I’ve fitted a fuel pressure sensor to the car, so that we can see how constant fuel pressure remains, particularly at high revs when fuel demand is high. And finally, I hope to have a ‘box of tricks’ on the car so that the ECU data (injector pulse widths, acceleration enrichment, spark advance, air temperature etc.) can be fed to the datalogger for post-race analysis. I WILL cure the misfire!!!!

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Last Updated on Thursday, 16 June 2011 05:33

After the last race of the season, it was a fairly hectic rush to get the engine out of the car and ready to be stripped down in front of the hawk-like eyes of John Atkinson, the Eligability Scrutineer for the Monoposto Racing Club. All was found legal, and the results of 2010 declared final. Hurrah.

But that meant that we were suddenly way ahead of where we normally would be during the winter. Instead of looking at the car and discussing what we’d do to it whilst drinking tea, we were at the stage of rebuilding (new bearings, gaskets, and a slightly modified front cover so that the oil pump belt isn’t quite as tight) the engine.  That is now done, and over the last two evenings it’s been refitted into the car, and the gearbox reattached as well. The clutch was fine, and we’ve fitted new seals into the clutch release cylinder just in case…

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Last Updated on Wednesday, 1 December 2010 10:57

Not a good weekend really. Our problems started on Friday when the switch for the tail lift on the truck burnt out in the heavy rain, so we had to resort to touch wires together by hand to operate it.  This was the first time we were going to use the truck at a race meeting, so we knew there were going to be issues related to it, but we weren’t expecting to have such fundamental failures… Oh well, you live and learn, and we can fix it in time for Oulton (which, at the time of writing, is only a few days away!).

Qualifying the Dallara F398 at MalloryAt the circuit on the damp Sunday, I qualified in 3rd, missing out on the front row for the first time this year due mainly, I suspect, to traffic on the final two laps when the drying track was at its quickest.  The ever present misfire reared its head again too, although I don’t think it’s costing much more than a tenth per lap (although that is no excuse). We are hopeful of getting the misfire problems sorted out, and we are attempting to discuss the matter with the people that made and mapped the ECU. However, a good race was still on the cards, until the throttle bodies failed for a second time in two meetings, leaving us with no throttle – the throttle shaft that links both throttle bodies together broke up.  Clearly not strong enough, and a new design is in progress. Laughably, the throttle body manufacturer even tried to suggest it was the driver or the track that was causing their product to break. We’ve since offered to let them inspect the installation and the setup of the throttle cable before Oulton Park – although I’ve been triple checking the throttle cable and the pedal stops since Mallory last year.

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Last Updated on Monday, 13 September 2010 01:06

To continue from my last ‘technical update‘, Martin and I put the car back together last night and had it running. And the good news – indeed, the only news – is that the oil pressure is back to normal, and doesn’t fall too low at idle or go too high when revving faster. Hurrah! Now to get the car ready for the racing – gear ratio change, set it up properly (which should mostly be checking it hasn’t altered much), and a bit of a clean.

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Last Updated on Wednesday, 25 August 2010 01:22