Uwe & the boys in TBMW |
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UweM3
Moderator Group Joined: 11-February-2003 Location: United Kingdom Status: Offline Points: 5445 |
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Posted: 31-August-2006 at 18:15 |
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6 pots are a waste of money when used with road tyres IMHO. |
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E61 520d, slow and buzzy but my wallet likes the mpg.....
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E30Matt
Newbie Joined: 02-May-2006 Location: At computer Status: Offline Points: 18 |
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215m3 i dont doubt the car in question has the power he is quoting and i know it has 6 pots and suspension but this dosen't mean that the suspension is set up correctly does it? Also just because it has 6 pot front brakes does this mean that the brake bias is set correctly?
I agree with what you said about driver tallent but boes this mean i should be doing touring cars, i was lapping Brian Long (Ex touring car driver?) in this car at Brands and i've only got 150 BHP and 3 cylinders? I'm not running anyone down here or trying to upset people, just trying to get my views across. |
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215m3
Really Senior Member II Joined: 10-May-2003 Location: Bathgate Status: Offline Points: 2118 |
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The car in question has custom built suspension by the person who built the engine. It also has 6 pot tarox brakes. One can learn a new circuit in a day, granted not as well as over serval visits, but a full open pit lane for a day, you would know the circuit by the end of the day, but not necessraly the correct lines. You would know which bend was approaching by then. There's also a diffrence between learning what bend is coming next and what line to take. Getting the lines right at slow speed is easy enough, but putting it all together with speed, gear changes, braking at the right point, releasing the clutch at the right time as no to lighten the back end, turning in at the right time with the correct speed. Throttle position during the corner and then knowing when full power can be applied as early as poss. Once this has been achieved then on to setting the car up for the next corner. If any of the above is wrong then this may effect the approach for the next corner. It just seems the owner does not have the natural tallent of some of the other drivers, just an observation. Regarless of what power a car has. If set up with the same chassis setting then there will be a maximum limit of aheasion and once reached no more power can be applied, so if a 200 and 300 hp can both reach this point the only time power will help is on the exit. This car also raced another 300 hp car, which had slicks. the car with slicks was behind. Once out of the chicane at croft it out dragged the car in question on the long straight. It may have been able to carry more speed through the chicane, but was behind, so the other car would be able to get on full throttle sooner. Edited by 215m3 |
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E30Matt
Newbie Joined: 02-May-2006 Location: At computer Status: Offline Points: 18 |
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Matt T no offence but how many trackdays have you actually driven on, i think you'll find it takes more than a few laps to learn a circuit. I know people who have been racing and doing trackdays for years and are still learning new lines at circuits.
Lets not forget that Martin was on slik's and Gaz suspension on the day, the other car in question was on road tyres and not what you'd call track suspension. Just remember chaps, POWER IS NOTHING WITHOUT CONTROL! |
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Matt T
Really Senior Member I Joined: 16-January-2006 Location: London Status: Offline Points: 399 |
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Theres not many tracks with only 7/8 corners though is there, surely after a few times round he would have it pretty much sussed. |
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215m3
Really Senior Member II Joined: 10-May-2003 Location: Bathgate Status: Offline Points: 2118 |
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only no good compared to slicks, but better than road tyres. some folk just talk cobblers! |
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UweM3
Moderator Group Joined: 11-February-2003 Location: United Kingdom Status: Offline Points: 5445 |
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He also said to me that R-Compound tyres are no good..... |
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E61 520d, slow and buzzy but my wallet likes the mpg.....
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UweM3
Moderator Group Joined: 11-February-2003 Location: United Kingdom Status: Offline Points: 5445 |
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That's some very good numbers Piers! Congrats. |
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E61 520d, slow and buzzy but my wallet likes the mpg.....
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piers66
Senior Member II Joined: 17-January-2004 Location: United Kingdom Status: Offline Points: 224 |
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Dyno plot posted at last. Comparing this to results from TBMW - which of course doesn't list power at wheels - my power seems to be peaking 400rpm higher - certainly car feels like it wants to run "past" 7800 limiter. Martin - not sure about Silverstone - not much vacation left. I'm doing Cadwell on 11th if anyone interested in seeing what a 3.91 ratio feels like with above engine power. |
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piers66
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piers66
Senior Member II Joined: 17-January-2004 Location: United Kingdom Status: Offline Points: 224 |
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piers66
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trackM3
Really Senior Member II Joined: 13-April-2005 Location: Brands Hatch Status: Offline Points: 549 |
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Toby, i just hope his engine building is better advised than his suspension setup's ? Piers i'm glad your happy with the Gaz setup, are you at Silverstone ? |
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Oops i went and got an E36 !
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215m3
Really Senior Member II Joined: 10-May-2003 Location: Bathgate Status: Offline Points: 2118 |
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I was told at Croft buy the guy who built the engine and car that he built the suspension. He said he runs it on the bump stops. That's how there's no compression in the travel. He said he had made 6 sets for his pals. That's why it did not handle well at all.
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piers66
Senior Member II Joined: 17-January-2004 Location: United Kingdom Status: Offline Points: 224 |
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Well it's certain that mine with the GAZ suspension & dunlop trackday tyres can carry a lot more speed round corners than before, but good track knowledge (especially when long like the Ring) can count even more! Martin - very pleased with my set-up now. |
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piers66
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trackM3
Really Senior Member II Joined: 13-April-2005 Location: Brands Hatch Status: Offline Points: 549 |
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I was at that track day, and yes came past him a few times per outing !
he didn't know the indy circuit in his defence but the car in my eyes is all out power and no handling, i don't think the car is at all well set up and could in the future be a very quick car in the right hands ? only my opinion Martin |
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Oops i went and got an E36 !
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Jonners
Really Senior Member II Joined: 23-September-2003 Status: Offline Points: 601 |
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it was getting hassled....
as i said it all depends on the driver |
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Matt T
Really Senior Member I Joined: 16-January-2006 Location: London Status: Offline Points: 399 |
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I bought my car from him and had a look at his...(excuse the rubbish phone pics) He claimed 300bhp to me, he certainly hasnt cut short spending money on it. Although i have to say, i saw it at Brands a few months ago and it was getting seriously hassled by most the M3's, including Martin's standard 195. |
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Jonners
Really Senior Member II Joined: 23-September-2003 Status: Offline Points: 601 |
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One thing worth mentioning before this thread dies
Whether or not a car can pull away from another on a track mostly depends on how well the cars are being driven just because a powerful car doesn't pull away doesn't mean it hasn't got the claimed power speed through the turns has a very big effect on speed on the straights you can never assume that 2 drivers have equal ability |
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stevesingo
Really Senior Member II Joined: 03-January-2004 Location: United Kingdom Status: Offline Points: 795 |
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Dave, the wheel figures are not corrected. It is only once the losses have been added that the correction is done.
Thinking about it... How can you add a correction factor to a transmission loss where that loss is not affected by the tempreture/barometric conditions? I'll have to lok in to that... Steve |
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215DMX
Really Senior Member II Joined: 14-May-2003 Location: Croydon Status: Offline Points: 1780 |
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Also noticed the 'loss' figure was like 60bhp on the before and 80 odd bhp
on the after. So its easy to pick up 20hp in that case. If i remember right the difference between wheel figures was like 6bhp ! EDIT: also I belive the Catcams 283 is pretty much the same as a BMW 264 or 272 (can't remember which) if measured in the same way. Edited by 215DMX |
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SHEPSM3
Bavarian-Board Contributor UK Sport Evolution. Joined: 26-December-2004 Location: Bristol, UK. Status: Offline Points: 1934 |
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Thats stupid, there are lots of guys here that have had the AN fitted and are totally happy with it, I suspect Power Station has talked them into thier Motec? I wouldn't bother with that either and go for the Dastek Uni-Q if I was them. But then - They seem to know better, so who am I to say? |
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