I have problems with the display witch does not start, dispalying annything but the frames of the infomation. No outside temperature is dispayed but the text...
... Anders, This discussion group is about modifications to the Prius. For help with a problem, you should go to the toyota-prius group. You may have a...
... Sounds bogus to me, but let's discuss. The modification appears to be a resistor that changes the intake air temperature signal to the Engine Control Unit...
I agree with Graham's comments. In the "old days" when working with high-compression engines, one could get an increase in power by advancing the timing (up...
One additional side thought regarding the Prius Timing Advance kit. Although the kit may not offer much in the form of additional horsepower to the power train...
... I really hate it when someone agrees with me and then I have to disagree with something they said, so please forgive me, Fred. The Prius engine has a very...
Okay Graham, I'll bite... I pulled this information directly from Toyota's Specs on the Prius: Toyota Hybrid System (THS) Gasoline Engine: Type: Aluminum...
... Fred, I realize that Toyota themselves publish the 13.0 figure. Nevertheless it is the expansion ratio, not the compression ratio. The compression ratio is...
Don't worry Graham, I'm not upset and as I stated in my original comments - I agree with you. It is ironic that Octane can vary so much throughout the Country....
... I certainly agree with this, Graham. You'd be up against all sorts of computer algorithms trying to straighten things out. You might steal a few ...
... Chuck, I have no problem with this. I'm in no better position that anyone else to make guesses about how the THS works in this level of detail. It would be...
... Well, I stalled for time hoping to find something in the New Car Features manual, but now I'm home, I've checked and there's no real clarification there....
Inasmuch as the real-time compression is controlled by the computer changing the valve timing, perhaps the 13:1 compression ratio is based on geometry, the...
Following up on my previous message, here is a link to a basic description of the calculations involved in determining compression ratio:...
David Punia
david@...
Sep 11, 2002 4:36 am
951
Hi, Yes, we used to "CC" the heads when building our 1/4-mile street stompers. This refers to balancing the combustion chamber volumes to insure equal...
Oops, I meant to say that no engine mods could POSITIVELY alter the performance of the THS. I'm sure they could negatively affect it! ... I can envision a mod...
... states what ... that was ... Fred, For starters try these. Nathan http://www.sae.org/automag/toptech/1298t06.htm "The engine employs the Atkinson/Miller...
Cool, Ram induction, eh? Chrysler (once again) marketed 2 versions in their early 60's 413's: one with long induction tubes for passing at highway speeds (the...
... Jeff, this would reduce off-the-line acceleration. With no power generated by MG1, MG2 would be unable to get its full 33 kW since the battery can only...
... Thanks so much, Nathan, you've saved me from the sin of making unsubstantiated statements. A couple of other errors cropped up in this thread that could do...
... the ... Hi Graham, Therein lies the rub: it'd need MG1 to start the ICE, with subsequent "brake" application to MG1. (Or I guess we could allow MG2 to...
Found a NIFTY Java program Prius Simulator on the TP board: < http://www.wind.sannet.ne.jp/m_matsu/prius/ThsSimu/index.html > I suspect some "differences of...
Maybe it was just my imagination but there seems to be SOMETHING interesting going on with a cold ICE. One morning I was backing out of the driveway, silently...
... Don't get too excited. Until you get to 20 m.p.h. 75% of the torque comes from MG2 even if the ICE runs flat out. Having to rely on the battery (reputedly...
Except, perhaps, for replacing the HV ECU, dividing the Motor and Electronics coolant loops with dedicated radiators and higher coolant flow rates (too keep...
... The reason I've never wondered this is because mine does. When MG2 is working hard and I'm in a quiet area, the car sounds very much like a subway train....
... One word: Shipstone bp ... coolant flow ... would just ... device ... and ... subway, which ... also do ... a high ... (and ... torque ... the ... the ... ...
A while back somebody said that it would be neat to have a display in the rear window with the MPG and Miles numbers off of the Consumption screen. I too...
