andrew_forrest

I agree with Jac, Archie, you should definately just ... s ... l ... o ... w .... down your gearshifts and give the others a chance to get close

Nice one Archie, you have had a really good season

Russ, I rarely see a completely standard car so without checking your car, I cant say for sure. It would be easy enough for you to time it from say 3000-6000 rpm in 3rd gear with 95 and then 99 octane. If performance is the same then the ECU is probably happy with the 95 in your car. I can make the torque curve any shape you want, the limitations are only mechanical ie how quickly the turbo will spool and the maximum safe boost level. There are fewer limitations regards lower torque, the wastegate spring tension will however dictate minimum boost. I have control over the boost target and wastegate duty in 3 x 64 point maps which have throttle position and RPM axis. I can also change the axis values so for example I can have boost/torque progressive with throttle position and/or rpm. Basically the answer is yes, I can tailor the torque however you would like it. I have road-dyno data for std Sti, PPP and for many stages of modification (on your model/year) so it would be possible to overlay your new torque with any of those to verify the output throughout the rpm range. cheers Andy

I monitor exactly what happens inside the ECU when these cars are run on lower octane fuel. Combustion knock is detected, the ECU retards the ignition timing and adds fuel to slow down the rate of combustion, this reduces power and increases fuel consumption. These revised low octane settings are then stored in memory tables within the ECU, these tables have separate cells depending on load and RPM. As the combustion takes place later in the cycle, this also has the side effect of increasing the exhaust gas temperature which is not good for the turbo. If you drive at full load for extended periods then the ECU may also reduce the boost pressure, depending on how hot things become, this obviously loses even more power. When you refill with Vpower or similar, the ECU very gradually re advances the ignition timing, optimises the fuel and allows full boost. The memory tables are then repopulated with the high octane settings again. Contrary to popular belief, resetting the ECU will not restore high octane settings, it defaults to low octane initially and learns upwards(for engine safety) If you get caught out and have to run 95 octane then my advice is to keep in the low load/low rpm areas, that way the memory tables at high boost will not be 'spoiled' and then as soon as you put decent fuel back in, full performance will be available straight away. In a nutshell, yes they will run on 95 RON but are so much more efficient on 99 RON that it probably pays for itself. Andy

Thanks for the publicity Jac, building a 9 second car in 4 weeks and under £10k spend is a challenge but with the help of a few good friends, you never know, it just may happen cheers Andy

I'm up for that ! Bring it on Might remove a bit excess weight from the 'shopping car' in the mean time to get her back to her former 11.0 1/4m times

No mate, you're not being daft

I agree with Jac, back off guys and stop stirring it up Jac, re your revised "Andy F kicked my @ss @ TOTB" signature, can you just clarify that a wee bit to include the 1/4 mile as well as the handling circuit

If we are playing silly burgers and including times set outside the event

Better than that, Jac also had all day Saturday practising the circuit, the rest of us met it for the first time on Sunday, we then had 5 runs to set a time on a new track ! Scoring your fastest run when the game is already over is a bit like playing on after 90 minutes, when the other team have already gone to the dressing room The Whiteline reference was simply a comparison to my car on totally std suspension. I'll take it as a compliment however that he thinks its an achievement worthy of bigging himself up

Obviously not within the 5 timed runs which is what TOTB comprises of !

Lol, I wasn't going to say anything about Lisa's daily driver shopping car, driven to and from the event, running on totally std suspension, kicking the ass of Whitelines flagship.......... until I noticed Jacs signature "Faster than Andy F @ TOTB IX handling circit " WTF lol !!!

Handling times FAO Jac

I've mapped a considerable number of cars on std internals that have been running around the 400bhp mark without issue for many years. If the internals are in good condition and its well maintained then there is no reason why it shouldn't be 100% reliable if fitted with the correct bolt on parts. Andy

Nice one Stevie, sounds like you're having fun I have emailed you the Ecutek roaddyno power curve. cheers Andy

Thanks for the feedback guys Thats one tidy classic you have there Jim cheers Andy

Yes, its the castor rather than dive centre that makes the biggest difference. You can buy offset bushes to fit the std brackets and then flip the mounts 180 degrees for even more castor. It weighs up the steering for increased feel and also transfers more weight to the inside wheel on when steering lock, the dynamic increase in camber can also help if running a typically low 'street' camber angle as standard.

What gives you that idea Dunk ? Something to do with the wheelspin in 4th gear

Yes they did take notice ! We had quite an interesting forum debate which involved Whiteline HQ going away and doing some specific testing, then coming back slightly sheepishly to admit that it did infact promote lift, not dive ! I have used them and they do help to reduce understeer but there are other more effective methods of doing this.

And I wonder who it was, many years ago, that enlightened Whiteline as to the true function of their mis named product

I heard that 2 still went missing

Send the TD ones back and buy these ? http://cgi.ebay.co.uk/ROTA-G-Force-race-wh...0b#ht_867wt_692

lol, on my 'days off' I'm usually chasing scoobs in a BMW td

Hi Paul, didn't realise this was your car !! If/when you get it back, bring it down and I will check it out for you. Nobles can check fault codes but will not be able to tell if its been mapped at some point in the past. I can give you a report on its condition with regard to engine/ECU/tuning which may be handy if you want to give it back. Andy