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What's a hot4? Got a link?
Shambles Wrote:I can't find any review on that website. Some bonny girls tho
Cheers Bob - I sure got some *ahem* enjoyment from the *ahem* pictures of *ahem* cars on that website. Cough.
Wow... reading the tiny print in the article has surprised me!It says that in stock form the CRDi can do 0-100kmh in 9.8 sec! I am sure that Hyundai listed it somewhere at over 11 seconds... that's a much better figure.
For those who came late to this forum, you may not be aware that Martin (the author of the article and a part owner of DW Tuning) posted extensively on our forum when he DW Tuning was working on reprogramming the i30 CRDi ECU. Some members had differences of opinion with him over some of his findings as I recall....Bob
so to me what a journalist puts to paper is just BS ... like they say, Talk is cheap.
I see nothing has changed around here...
Rubix, all i asked Martin is if he could show me a timed dyno run, where instead of useing RPM you use seconds the throtle was wide open. and he did not like me asking that.
... just surprised none of you guys have worked out the tuner box that everyone is lining up for is a variable resistor to trick the output of the Common Rail sensor.....$15 and a trip to Dick Smiths and its a DIY way of using more fuel.
Sour grapes are not my favourite fruit... (let's just leave it at that...) 8)
Quote from: Lakes on November 26, 2008, 08:46:25Rubix, all i asked Martin is if he could show me a timed dyno run, where instead of useing RPM you use seconds the throtle was wide open. and he did not like me asking that.Because it is essentially and wholly stupid, unless you have an old 'drum brake' style 1960s dyno that cant apply load....as stated numerous times. Remember if you have $50 to spend on a dyno run, its better to spend it on food (was it Thumper that said that?) Good to see its the same old same old happy faces around here, just surprised none of you guys have worked out the tuner box that everyone is lining up for is a variable resistor to trick the output of the Common Rail sensor.....$15 and a trip to Dick Smiths and its a DIY way of using more fuel. Go for a rotary pot to make it programmable! Theres our tip for you in 2009.Its a good little car the i30 CRDi, enjoy it, especially getting the inside front to peel rubber through second gear corners Sorry I have been a little quiet here, we have been caught up plenty with development of our R35 GTR, so the i30 has had to take a back seat for a little bit....more soon though
Remember if you have $50 to spend on a dyno run, its better to spend it on food (was it Thumper that said that?)
Good to see its the same old same old happy faces around here, just surprised none of you guys have worked out the tuner box that everyone is lining up for is a variable resistor to trick the output of the Common Rail sensor.....$15 and a trip to Dick Smiths and its a DIY way of using more fuel. Go for a rotary pot to make it programmable! Theres our tip for you in 2009.
especially getting the inside front to peel rubber through second gear corners
Sorry! Was it when I told - and then showed - you guys that putting a 'sports rear muffler' on an i30CRDi was a waste of time? (zero power, just drone)Or when that guy photoshopped in a picture of an intercooler into his car and told everyone he had done a custom front mount (that is an all time favourite) You have no reason to be sour other than ignorance or misunderstanding of what you were told.
And yes the tuning box is a resistor box, with an attenuated or 'clipped' signal (hence the circuitry). All it does is tell the computer that the fuel pressure is lower than it really is and cause the computer to enrichen OVERALL fuelling by a given percentage. Thats why it plugs into the common rail sensor....as its the fuel pressure signal that is tricking. Sorry, its not a magical fix, and since the fuel pressure is up the whole time, so will be the fuel useage. Thats just physics no matter how you try and bend it
Free flowing system shows gains in economy, not power, but I guess your dyno also shows this (Or maybe not)
And your ECU 'hack' increases power by ?
Yes, simple physics, more fuel equals more power in a diesel engine.
Then again, we have found that "simply" raising the fuel pressure results in better economy, better power and a cooler running engine.
Six cars were tested, same day, same road, same engines.
Yes, I'd rather spend $50 in fuel, drive 1,000km to meet with other like minded people who enjoy meeting others in the open, bring their families and enjoy a country drive, good food, good company, then to sit in a shed watching a vehicle on the 'rollers'.
Correct. We measured back pressure in the exhaust, air fuel ratio coming out of the exhaust, boost pressure, power, and of course torque. None of these changed with the rear muffler on/off or replaced. If none of these changes the physical operating conditions of the engine havent changed making any gain in economy you have experienced a placebo effect. An exhaust system is not a mystical Peter Brock polariser, there is actual equipment that measures the result of a muffler on/off, really
By the amount we posted using a vehicle power measuring tool to read the data. Its a chassis dyno Really do we have to link the dyno graphs again?
Correct, and less economy. You cant put more fuel in without using more fuel
Adding fuel to any diesel engine increases power as you have said, but it also increases heat. Every diesel tuner worth their salt from big trucks through to soft roaders and even econo-boxes uses an Exhaust Gas Temperature gauge to monitor how much fuel is enough for the engine. Heat is a by product of power, its a very basic law of physics - conservation of energy - that hasnt been re-written for the i30. So adding fuel increases power, increases heat and decreases fuel economy. It really is very simple and nothing new
Testing cars side by side on the road for performance is not only foolhardy and illegal its also dependent on the drivers of the individual vehicles.
Good for you and no doubt you are a very nice bloke, but please dont argue performance when you have no intention of understanding or grasping the basic concepts and principles involved