Showing posts with label Ask Rob About Cars. Show all posts
Showing posts with label Ask Rob About Cars. Show all posts

Aug 8, 2017

Toyota FJ Opinion

Brandon from Brandon, FL writes:
I am always in the market for a new ride I like the Accord. But I really enjoy a Crossover-SUV with the higher up feeling. But there are none that are in my price range so for the past year I've been stuck. But with my warranty now up I am back to searching for a good weekend deal in the paper. What do you think of the Toyota FJ Cruiser, black on black with dual exhaust? It has a good sporty look to it. I also am not really worried about gas I don't drive much at all. My current ride gets about 16/21 mpg city/highway.

Brandon,
The Toyota FJ is a nice beefy, ride. Toyota reliability and distinctive, retro styling are nice touches. In fact, my sister really wants one! It definitely has off-road intentions so that part might be wasted in your neck of the woods. There is nothing wrong with that if gas consumption isn't a concern.

I suggest two things though. If you tend have rear seat passengers or cargo, try climbing in and out and see what you think in terms of access. Second, take the car into a crowded parking lot and park it between cars and back it up a few times. See if the visibility is acceptable for the daily driving you'll be doing. Good luck in your search!

Apr 5, 2017

Porsche Panamera


Three letters in the March 2010 Car & Driver question the 3.3 second 0-60mph time of the Porsche Panamera Turbo that was tested the December 2009 issue. That makes it potentially quicker than many cars with much more power and less weight including the McLaren F1, Ferrari Enzo and Porsche's own GT-2. Weighing 4409lbs with 500hp, on paper it shouldn't beat any of them. There are three reasons it's so quick.

All-wheel drive, the dual clutch transmission and gearing that is probably more aggressive than any performance car in history make it accelerate quicker than much more powerful and lighter cars. The Panamera Twin Turbo is in 3rd THIRD! gear by the time it hits 60mph. Many extreme cars like the Bugatti Veyron, Chevrolet Corvette ZR-1 and others go over 60mph in 1st gear. Check out the Bugatti Veyron road test with the top 10 quickest cars they have tested.

The all-wheel drive ensures no slippage unlike the others where power delivery has to be managed with available traction. I eluded to this challenge in my 60-130mph article. A 1.2 second 0-30mph time is extraordinary, on par with the AWD Veyron and GT-R. I would guess this translates to a 1.6 second 60ft at the dragstrip given the previously mentioned gearing.

The horsepower deficit is apparent in the trap speed in the 119mph range vs. the 125-130mph or higher times of the other cars. With excellent track preparation, technique and usually drag radial tires, a few have been able to match the launch of the Panamera and therefore run a much quicker quarter mile. Modern-day street car drag racing legends such as "Ranger" and "Furman" are examples of Corvette and Viper drivers who have done this.

Finally the 7-speed dual-clutch transmission means nearly uninterrupted power delivery. As one clutch disengages, the next engages with a speed and consistency that can't be humanly repeated. With 5 non-overdrive gears, it's fierce.

There is no other-worldly driving skill excuse or strongly suspect fudging of power levels in any gear with the Porsche Panamera Twin Turbo, unlike the Nissan GT-R. The car doesn't defy physics but it's transmission sure tries to make it seem so. Just wait when the new 911 Twin Turbo is tested.

The 2010 Porsche 911 Twin Turbo assuming the gearing is the same as the Panamera is that it will accelerate even quicker since it's about 800lbs lighter than the Panamera. So besides still not matching the GT-R's "factory" 'Ring time, it still won't accelerate to 130mph 1.6 seconds quicker than production models nor accelerate from 120 to 130mph in .9 seconds either in production form.

A great link for various automotive calculators courtesy of Wallace Racing. There are several for 60ft translations and various speed indicators.

Apr 4, 2017

BMW 318is - Better Mileage With Gearing? Ask Rob About Cars

Hi Rob,
Great articles and photos, thanks so much ,
I have a 1994 BMW 318is. It gets great gas mileage and would love to get even better mileage . The rear end (3rd) member locked up when I first got the car, so I found a deal on a 325 axles and rear end , put it in never changed any gears do you know if the 325 is different than the 318is both were manual transmissions. Should I leave well enough alone ?
Thanks,
FAN

Hello Fan and thank you!
I found this excellent website that lists a LOT of BMW gear ratios, perhaps all of them

It seems that you now have a less-aggressive final drive ratio of 3.15 vs. 3.45. So if you like your mileage and the acceleration is adequate, I would leave it alone and congratulate yourself on a fuel saving modification.

I wouldn't suggest trying anything numerically lower than 3.15 such as the 2.93, even if you can find it. My concern would be inadequate acceleration with the 4-cylinder engine. This would mean using higher revs and consuming more gas, effectively negating your intended result. Also, it may mean using a higher gear for cruising at certain speeds and poor acceleration in 5th gear. If you know anyone that has done it, be sure to write back and share!



Jan 17, 2017

Silicon Valley Auto International Auto Show 2010 slideshow of customs and modified cars


As mentioned in my previous article here, one of the highlights of the show was the South Hall with numerous custom and modified cars, low riders, trucks, etc. There was even some live entertainment and dancing.
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Have a question about cars you would like answered? Want to know about performance, racing, modifying, shopping, makes, models, events, etc? Ask me here: AskRobAboutCars@gmail.com and I'll do my best to answer your question and publish it here on Examiner.com!