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#661
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Who decides on this list? What formal associations does this group have with key government legislators and key stakeholders What ranking were you in the list, number 75? There were a host of other engines well ahead so Brad it is not as green as it gets. Its as brown as it gets!! We are strategically working through the manufacturers that will bring the technology to fruition earliest and who have the ability to manufacture the engine or has the manufacturing volumes to make it viable to manufacture for them. Quote:
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#662
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WRONG IT's not his company it belongs to 1600 shareholders...and they got him there with their money and their sweat so dont lecture me You are a fool, talking to green groups will help immensely, you are obviously too stupid to understand this. |
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#663
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If you want to point any fingers for the share price look at the shareholders who are selling, and as the price strengthens they sell again. I'm in escrow and not selling. Even if I could I wouldn't. I can't get involved in the share trading and wont. I have no control over who buys and sells, when or at what price. All I can do is work hard, do the best job I can do, and hope the market responds in the way I hope it will. Last edited by revetec; 07-03-2007 at 03:34 AM. |
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#664
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WOnderer, you are either very lacking in running any company OR are actually very devious and are trying to undermine Revetec.
The former has let you get away with me not showing a yellow card, but you've exceeded your "free" limit and I am now concerned you are the latter. SO, STOP going on about it -- like you said you would. ANY more attacks on Revetec or Brad will by ME be considered "personal" and you will get warned. Consider this a heads-up ![]() PS: You clearly have NO knowledge of PR or marketing tho. Siemens ( at least get the spelling right !! ) will get the Revetec image in front of millions of influential ( real ones, not wannabees ) engineers, managers and investors. It's an astute move and one that major multinationals usualy work hard to get ( I've had special developments done and paid to get articles and images included in professional journals before )Clearly you have an agenda. At least be adult enough to state it publicly. Who are you employed by and do you hold shares in Revetec or a competitor ? Otherwise I feel a permanent ban may be necessary as you are perhaps using UCP for industrial espionage or market manipulation - both illegal activities ![]() Brad, personally (again) I woudl recommend putting Wonderer in your ignore list and avoid these "discussions" as I woudl be concerned how this person is portraying you and Revetec based on them !!! Clearly their is spin being applied ![]()
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David Leslie 1953-2008 |
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#665
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STOP personal abuse --- NOW!!!!
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David Leslie 1953-2008 |
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#666
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Chief of Secret Police and CFO - Brotherhood of Jelly Reuniting families since 2007 Avatars custom made by Vaigra - avatar maker of champions |
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#667
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Been reading this discussion for ages and decided to join to make a post as well, seems like everyone has an opinion and that Revetec is quite willing to repsond, so here is mine:
First a fact: The Honda Jazz engine: The 1.3L I-Dsi engine, incorporating a single over head cam and no variable valve timing, punches out 61kW at 5700rpm and 119Nm of torque at 2800rpm. How much torque is your 1.38l (1.4L)engine making at 2800rpm and how many kw's at 5700rpm? Btw how high does it rev? VERY IMPORTANT! - Where are the BSFC figures? Btw lots of 4 stroke engines are putting out BMEP figures of over 200psi some very short life engines as high as 220+psi. Until your motor turns over 100 000km's then we should assume it is in the same category as a race motor, let's face it you have near F1 stroke/bore ratios in there and I don't think anyone who knows a little bit about engines really believe that your pistons and valvetrain is running at a true 3700rpm and producing those figures. 11000rpm is what the pistons and valvetrain are seeing no doubt about that, this engine must surely suck up fuel and produce poor BSFC figures, if I am wrong please post your BSFC plots. You can mess around with BMEP figures because your shaft speed and piston speeds are not the same, put a 1/2 gear on any motor measure tq on that gear and you instantly get double BMEP figures, you sir need to devide your BMEP figures by 3 to get the actual result since you are firing 3 times more per rpm than a normal 4 stroke engine same compensation you have to do with a 2 stroke motor, devide BMEP by 2. FYI 2L Honda Type-R motors in 2002 did around 11.9Bar BMEP, very high for production engines! Last edited by jrobson; 07-03-2007 at 07:25 AM. |
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#668
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welcome, jr.
Please understand that Revetec has been posting info to those of us here who do know about engines and systems. You will be fortunate to get the answers you are requesting as they give too much away to possible competition. We've not signed NDAs so have no rights to get the numbers. We have had inputs to an unusual fuelling strategy which is at odds with "standard" expectations, so I can understand why you think it sucks fuel for poor BSFCs ![]() Be patient ( don't be like some others who think they have a "right" to be told ) ![]() PS: and to Wonderer ... shareholders are NOT "entitled" to technical information in a company. Only that info that can be given publicly OR is specifically requested and an agreed NDA signed !!!!!
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David Leslie 1953-2008 |
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#669
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Why would Revetech want to match a completely different engine types power and torque values at the revs that engine excels at?
If the Revetech engine can produce figures that either match or exceed these for power and torque then the gearbox and final drive rations can match that to whatever road speed is needed. This will also apply to max revs - why does it matter?
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Chief of Secret Police and CFO - Brotherhood of Jelly Reuniting families since 2007 Avatars custom made by Vaigra - avatar maker of champions |
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#670
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What kind of world do you live in, where you think making judgements about how someone might react, rather than actually finding out what their response would be is a professional attitude? Quote:
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Try putting up some solar panels on your roof, for example. It's "aye". Given the respective attitudes displayed in this thread, if I had to invest in Revtec or whomever you work for, my money would be firmly invested in the former.
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#671
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Hello All,
What a battle it is to read through all the ego's within this discussion; I have been following it for some time. Some really difficult and negative questions and statements have flowed freely across my screen, having been posted by some very special people, and I have to congratulate Brad on how he has handled such difficult [expletive]'s, always in a polite and proffessional manner. To date, I can still count the people that should never speak again on both hands. The great majority of people seem to be happy and genuinely interested in the whole Revetec concept, it is unfortunate that the ones who speak most, are the ones who should speak least, thus drowning out and possibly corrupting those happy minds. I did manage to get a good laugh out of old mates flying machine though But anyway, I await the day when I can buy a car powered by a Revetec and zoom around the Gold Coast streets. But until then, I will continue to watch, read, and buy shares :P And one quick one for Brad; is there any chance of one day popping down to the factory and getting a little tour, it would be cool as. Keep it happy and positive people! 'Cause you don't know where you'll be tomorrow. |
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#672
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So... revtec, what cars have you tested the engine in? Or are you still in the development stage?
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If the grass is greener on the other side, then why are humans so afraid of change? |
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#673
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Thanks for all the comments. I'm sick with the flu today and at home, frustrating because I hate sitting around and resting. I'm actually watching a program on Foxtel National Geo Channel called China's Driving Dreams. Geely who we are talking to are the leading part of the program. If you can see a replay it's well worth it.
We have trialed an engine in a clients trike. GTM trikes have signed an agreement to supply engines to them (This is on our website), so part of our development of the X4 is also with GTM trikes. |
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#674
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Here are the details of the next screening for those interested. CHINA'S DRIVING DREAMS Channel 612 - National Geographic Next Screening: Sat 7th July, 1:00pm Duration: 60 minutes Cars are racing into China, changing the economy and offering dreams of a better life. But as roads clog and pollution worsens some Chinese auto-makers plan to flood the global market with cheap cars. . |
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#675
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Thank you, I won't post much more and add negative posts to this thread, while I am sceptical I also believe that anything is possible. I will be very happy to be proved wrong as well.
I don't mean to sound negative, to answer your question I asked for the figures because earlier in this thread it was posted that the engine is doing 3 times the torque at same RPM's than a normal engine, so what are the tq figures of the 1.38l vs the 1.3l honda motor at same rpm certainly not 3x, the reason for asking the hp at 5700rpm is because the engine can not rev that high because the pistons and valvetrain are seeing 3 times that even though Revetec claims this is not the case. If you believe that a 4 cylinder 1.4l engine with a stroke of 50mm is making 140nm torque at a true 3700rpm all the power to you. The reason a lot of us are suspicious about the figures and calculations is because there are many and I mean many "new" engine idea scams out there and even the ideas that look good on paper ex: Revetec, Randcam etc doesn't always work out so well in practise. The quickest way to see how efficient the motor actually is is to calculate BSFC figures, it is misleading the post BMEP figures because you can fake those and as I said before some NA production motors do 11.9Bar, for instance a rotary engine will have huge BMEP figures compared to a conventional engine until you compensate correctly but look at the BSFC figures and it's another story no need to compensate for those they can't be messed with. The world doesn't need a engine with a better power to weight ratio we need more efficient engines. I don't see why BSFC figures would be secret? Unless they are rather poor and will instantly stall all funding to the project. Thank you to Revetec for taking part in online forum discussions, I hope to be proved wrong. |