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The real challenge for future hybrids is to improve hwy FE. On the hwy there is little chance for regenerative recharging of the battery so the...
I'll be anxiously awaiting a F/awd RX250h, a Lexus version of the Venza. New Venza I4 upgraded to DFI, 15:1 base/native compression ratio...
"...Ford developed their own system in house.." Yes, using the same engineering team that gave us the TwinForce Gas-guzzling engine, now called...
PSD = Power Split device..? D4 = DI..? Please explain. Adoption of DI would allow the engine displacement volume to be reduced while...
"...Turbo will only sacrifice cruise mode FE if you don't need the power..." The highest compression available in a normally aspirated...
The efficiency gain attributable to DI is the result of the ability to increase the CR by ~ 20% A high(er) compression ratio is really of a...
"..It doesn't make sense to combine hybrids and turbos.." But with hybrids using the Atkinson cycle concept it does make sense to use SC. But...
If I am reading the RX450h factory repair/shop manual correctly then the Atkinson V6 in that is already switching modes using E/VVT-i. No...
DI/DFI...is advantageous only if the compression ratio can be raised significantly above the 10:1 level that has otherwise become the standard....
Yes, it's time for the Prius to be upgraded to SuperCharging..!! Miller cycle engine, lower engine displacement volume but higher HP/torque but...
Are you sure...? Maybe you just have not yet encountered the roadbed circumstances during braking that sometimes result in the "lurch".
"..no reason in hell.." Oh, but there is...it takes a finite time for the previously "retracted" brake pads to reach frictional contact with the...
Almost all automotive manufacturers discourage (passively..?) dealer service personel from keeping up to date on TSBs, recalls, etc. Dealer...
14:1 compression ratio gas engine..DFI plus what..??
Personally I'm holding out for a Porsche Cayman w/T-top and the Toyota Prius HSD system. I fail to understand, completely, this new hybrid HP...
50kw = ~70hp
A RWD hybrid, FINALLY....! Now we're really cookin' with gas/electric
Yes, and if damage to the drive train really is an issue then lower the rev limit to ~2500RPM at the same time.
With most cars the front brakes can easily overcome wildly spinning, DRIVEN, rear wheels/tires. The rear tires can do what they will, the fronts...
That return spring was a mechanical device that most anyone could accept a failure. To the general public software remains "behind the curtain",...
