djr81

I downloaded these from a for sale thread ages ago - simply because they were the only dyno charts I had seen on GTR dampers. They are for the yellow Bilsteins off an R33. Anyway apologies to whomever the vendor was - hope they sold them... On another tack someone needs to bring up the fixation people have on adjustable dampers. The problems with them are plentiful, other than for the high end stuff where the problem is simply that they are ruinously expensive. Not only is there nothing wrong with fixed dampers they are superior in most ways.

But its not that easy is it? If last years car was on the pace they would run last years car. Like Williams would. This years is quicker - its just that everyone else is quicker again. Which is not to say both cars dont suck teh balls.- clearly they do. Just that every team will produce a dog of a car every so often. Trick is to limit the number of times it happens and not let it destroy your whole business. Hoping theMcLaren Honda & the Willams Mercedes will be better.

I think he means in the design office.

It is actually pretty damn difficult to get dyno charts for cheap dampers. I havent even seen any for the Bilsteins that are so common on GTR's. The problem for most people is - even if you could draw exactly what you wanted the damper curve to look like, could you? I know I couldn't.

Im not sure all that is correct but the conclusion is unduly harsh. What you have to remember is that there is fk all in the way of testing anymore. Which affects Pirelli massively. The different cars use the same tyres very differently. Up until recently the MB ate them. Lotus, FI & the cheatin pseudo Italian team were gentle on the tyres so prevented Pirelli from implementing the changes they knew would stop the issues they had in England. So blame, in no particular order, the FIA for their dumb regulations, the teams (three of them anyway) for their selfishness and also Pirelli for making shit tyres.

Hmm, found the Yokies to be pretty good. How do the Z221's go for wear/heat cycles? How much for the Handcock's in the 255/40/17 size?

Means some people were supposedly fitting them backwards and running low pressures.

The general rule of thumb is if you dont have much money then dont import a car - you spend too much on fees and transport. Plus the cars in Japan for whatever is left out of your $10k budget (Pick a number - $7k?) will be awful anyway. So buy local. On the other hand if you do have a reasonable amount of money to spend on a track car you should buy local. So, in summary, buy local.

Well I am off to Singapore - but Japan may have been a better choice. Anyway one last dose of atmo motors and MW. Post race concert in Singapore? Fkn Justin fkn Beeber. FFS the fkrs fkn fkd.

Well he hasnt posted a dyno plot but I would seriously doubt he would see even 150rwhp at 4000rpm with 272 cams. Here is the difference between Poncam B's and a 256/252 (ie 4 degrees smaller than a Poncam A on the inlet side but with a little more lift). On 98 with -5's. Needs more boost and powers at the top end but the steepness of the curve around 4000rpm demonstrates why a relatively small cam change can make a big hp gain/loss when the thing is coming on boost and why getting the turbros to spool up in the first place is so important. And no I am not saying there is anything good about the setup on the graph. As for the cornering speed thing it is really, really hard to gain engine rpm by cornering quicker. Changing the way you drive to a slow in/fast out is the way a GTR needs to be driven anyway.

I know what he said - I was trying to agree with the 4000rpm mark. I havent seen a -5 & and 260 degree cam option on 98 make 300kW at the wheels at 4000rpm. 200rwhp is usually closer to the mark. Broadly I reckon the 200rwhp mark is a measure of decent response as long as you make good (450+rwhp) at the top end. Other people will doubtless see things differently.

Clearly there is some contention about how much front wheel torque is supplied at cruising speed. I have found in the 32's I have run that there is a little supplied at about 100km/h. So I dont think any fault codes will show and I dont reckon there to be anything wrong with the system. AFAIK the attessa works in conditions other than large front/rear wheel speed differentials.

They all put a little bit of torque forward at light throttle at that speed. The system is fine.

Dude RB26's dont have hydraulic lifters. But they do have very noisy injectors. And a propensity to run big end bearings.

Think the two companies are under one listing on the German SX? You never know how much influence any one person has on the car design or the business or if it just that the wind tunnel calibration is shit. See how Sam Michael is going at McLaren for example or how Ferrari went in the last few years.

Yeah Bottas is beating him but neither look like race winners given the car isnt much chop. But the reality is nowadays you dont make it through the junior formula without bulk coin and even into F1 without backing. Have a look at what rubbish aero has done to their share price. http://quotes.wsj.com/XE/XETR/WGF1/interactive-chart

Well the block is sorted to 86mm and the JE rings are on their way from the US. Next up is pistons. Could someone who has some laying about help out by offering a measurement of the ring lands on a forged RB26 piston? I have attached some measurements of an ACL piston - just not sure how much they vary from brand to brand. 20130621130016.pdf

Why? He can actually drive a bit when he isnt doing stupid stuff and he brings in masses of money to Williams. It is easier to stop a driver doing dumb shit than it is to make a slow driver quick. So they will keep him until either his money runs out or they can find someone faster (With money).

Well their fuel economy sucks teh balls - both MB & Nissan. So dont expect them to suddenly come good in the enduros.

Yeah it is for this reason that alot of people use 6 point harnesses. They may chafe your balls but in the event of something serious happening they are worth the discomfort.

As above 200rwhp at 4000rpm is a good indicator of response. If I remember correctly Poncam B's wont do it - the A's are better the difference being limited to a shorter duration exhaust. Also the choice is not just R, A or B Tomei will grind you plenty of other options.

Are you really a fan, or just saying that because you are afraid he is going to glass you?

Well one RB & one Ferrari anyway. With the MB's fading after qualifying well. Atleast that is what I am putting the housekeeping money on.

Sorry I meant in qualifying - the race and qualy have blurred in my addled brain into one boring continuum. Bottas effort on Saturday being the only highlight. But then again the Canadian GP was so dull I basically slept through it so anything could have happened and I would have missed it. For me keeping track of how Massa is going nowadays is a bit like following Marussia, ie something best done by other people. Still, PR blurb aside he was lapped by his team mate which isnt good. But probably not as disheartening for him as for Kimi. Silverstone will be equally as dull seeing as it tends to show up the speed differences in the cars much more than other tracks.

Really? He has been doing a better job, but a good one? Fernando lapped hin in Canada before Massa put it in the fence.