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SUVs Acura MDX Acura MDX vs. Acura RDX vs. Lexus RX 350
17 messages, Last post on Apr 03, 2009 at 6:39 PM
You are in the Acura MDX Forum. Your Hosts are steve_ & tidester
I am buying a new car. I currently have an'04 Sienna van with 80,000 miles on it-my 17 year old daughter will drive that mostly. Originally, I was looking at the RDX because I didn't want to have two big cars. It sounds as if the MDX is a lot nicer than the RDX, amenities and ride. I need help figuring out which Acura to get, or if I should look at the Lexus RX 350 AWD. I live in the Boston area so need something that is reliable in the snow and don't want to get snow tires. Thanks for your help.
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Replying to: neglex (Dec 31, 2008 5:36 pm) If you can stand the "business" of the RDX's dash then the SH-AWD system is head and shoulders above any other F/AWD system, systems in vehicles with sideways mounted engines. If you purchase the RDX I would suggest "wiring" the wastegate fully open, sacrifice 0-60 times for FE. An aftermarket modification kit for the CX-7 and the RDX might be a great idea, keep the wastegate closed unless the gas pedal is RAPIDLY moved to WOT. On the subject of the RX, the statements at Lexus.com indicate that a (desperately needed) entirely new AWD system is in the works. It would be nice if it also included the new 185HP I4, itself upgraded to DFI and Atkinson (miller..?) cycle but that's just wishful thinking on my part. RDX vs MDX.... amenities and ride... What amenities might one Acura (MDX), that the other (RDX) doesn't have...?? That couldn't be added aftermarket, better and more reliable products. Ride.... MDX would be HEAVIER, so on that count yes... But for FE... the RDX Between the two I'd choose the RDX... EVERY time. *** To be perfectly fair it IS AWD as long as all four wheels have roughly EQUAL traction, whatever good that may be in wintertime adverse roadbed conditions. My '01 AWD RX300 has just spent 10 days with the SURETY (enforcement..??) of AWD, tire chains on all four.
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Replying to: wwest (Jan 01, 2009 9:27 am)
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Replying to: neglex (Jan 01, 2009 11:05 am)
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Replying to: nhhawk6 (Jan 03, 2009 4:01 am)
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Replying to: neglex (Jan 03, 2009 4:50 am)
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Replying to: nhhawk6 (Jan 03, 2009 9:50 am) What, WHAT...??!! Wasn't the SH-AWD first introduced/adopted/adapted for the RDX and then later used to UPGRADE the MDX. Yes, the MDX is HEAVIER and therefore more overall traction coefficient on equally slippery surfaces but otherwise the VERY SAME SH-AWD system. "The RDX is NOT a smaller version of the MDX.." And we can thank the powers that be for that..!! If you don't need, or rarely need, the extra space, and can do without the clunky harsh ride of the MDX, then the RDX would be a perfect purchase.
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Replying to: wwest (Jan 03, 2009 11:30 am) |
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Replying to: nhhawk6 (Jan 03, 2009 4:01 am)
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Replying to: indyking (Feb 27, 2009 7:01 am) I would bet NOT. The clear majority of the time the RDX's engine runs in derated/detuned "off-boost" mode. In order to allow for the increase in "effective" compression ratio when boost comes on the native compression ratio must be lower that it would be absent the turbo 'feature". Obviously, like the CX-7, they could have used a form, combined form, of the Atkinson/Miller cycle. Have a "native", just cruising along, compression ratio of 10:1 (12:1 for the CX-7) and then use the intake valve closing delay technique to keep the effective on-boost compression ratio within tolerance. |
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