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Mazda CX-7 What would you improve?

131 messages,  Last post on Aug 23, 2008 at 8:24 AM

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#124 of 131 Re: 2008 CX-7 vs CRV vs Santa Fe vs rogue [munkey116] by johnny__rf Feb 26, 2008 (4:20 am)
Replying to: munkey116 (Feb 24, 2008 4:56 pm) For a good review of the CX-7, check out the new article in Car and Driver where they put 45K miles on the CX.   Strengths of the CX - handling, acceleration, looks, cockpit   weaknesses - horrific gas mileage, premium fuel (07), Mazda lousy service, CEL with 07   but read the article for yourself if you are serious about buying the cx   The CRV is definitely more practical than the cx-7. Drive both and you will know which 1 is for you......2 completely different beasts........   I had a CRV before the CX-7 and got bored with it.....
#125 of 131 Re: 2008 CX-7 vs CRV vs Santa Fe vs rogue [munkey116] by johnmi Feb 29, 2008 (4:54 pm)
Replying to: munkey116 (Feb 24, 2008 4:56 pm) I test drove the CRV and Sante Fe before choosing the CX-7. I commute some country roads and fun to drive was important. CX-7 has been a great choice for me - had to have the tech package though. Bose Sound system great! Also much more car for the money than the Nissan Murano or Ford Edge. The car exudes Zoom zoom. Gas milage not great and uses premium so be warned. Back seat will get small fast - only two kids for any length of time...
#126 of 131 Re: Suggested improvements for CX-7 [matrsoskin] by wwest Jul 02, 2008 (9:12 am)
Replying to: matrsoskin (Dec 27, 2006 5:16 pm) "CX-7 is not alone, new Honda RDX also has not up to the par gas mileage.."   That's a shame too, a REAL shame IMMHO.   Both could benefit mightily from the use of just a tad more current, modern day, technology.   Stop operating the engine in DE-RATED mode. The MAJORITY of the time this engine is in operation it is being operated in a highly inefficient derated mode in order to take advantage of the BOOST provided by the turbo once it comes "on line".   This engine, and the one in the RDX, could easily have a 50%, or better, improvement in FE.   Simply convert to the Atkinson(Miller/West) cycle "mode".   Dynamically "shift" from the highly FUEL efficient but low torque Atkinson cycle to the Miller/West cycle as the need for engine torque rises.   Many new engines, with the advent of DFI, are currently running a 12:1 native compression ratio. The RDX' native ratio is 8.8:1 (??). The CX-7, with DFI, could have a Native ratio of 12:1.   The CX-7 & RDX engines could have a "native" (off-boost) compression ratio of as much as 16:1 but effectively derated to 12:1 via delaying the closing of the intake valves during a portion of the compression stroke.   Then, as you apply more pressure to the gas pedal to attain a higher level of engine torque for acceleration the intake valve closing would be delayed even more, a greater and greater percentage of the compression stroke, to take advantage of the rising level of BOOST from the turbo without destroying the engine.
#127 of 131 Re: Suggested improvements for CX-7 [carlitos92] by wwest Jul 02, 2008 (9:24 am)
Replying to: carlitos92 (Dec 28, 2006 7:10 pm) "I think the number one reason for choosing an X3 over a CX-7 is probably that one has $10,000 extra to blow."   No, if you have that extra $10,000 to spend for THAT reason you probably know that a CX-7 is a patently UNSAFE, for wintertime adverse roadbed conditions, FWD or F/AWD vehicle whereas the X3 will be a good solid, SAFE, R/AWD vehicle throughout the year.   Unless you also know that you can buy an aftermarket TOAD kit (REMCO..??) that allows you to disable the F/AWD CX-7's FWD aspects during the winter months. In this latter case you are just simply "blowing" $10,000 needlessly.   Stay away from anything BMW as long as you can.
#128 of 131 Re: Doesnt have manual transmission? [maltb] by wwest Jul 02, 2008 (9:36 am)
Replying to: maltb (Jan 28, 2008 5:18 pm) " Yeah, but we want manuals...darn it!"   Sorry, NOT going to happen....!!   To many folks out there in the world today that don't understand the shortcomings of FWD and F/AWD with automatic transaxles in wintertime adverse roadbed conditions let alone give them the option of a stick shift.   Downshifting a RWD or R/AWD vehicle to attain a significant level of engine compression braking can be fairly beniegn on a slippery roadbed compared to doing the same in a FWD or F/AWD.
#129 of 131 Re: AWD worth it? [caliche67] by wwest Jul 02, 2008 (9:43 am)
Replying to: caliche67 (Jan 31, 2008 9:42 pm) Yes, get the F/AWD CX-7, drop one front half-shaft and "seal" the rear driveline "closed" and while you will not have a perfect driveline for wintertime adverse roadbed conditions you will find your RWD CX-7 to be much SAFER than your fellow CX-7 owners, FWD or F/AWD.
#130 of 131 A more comfortable ride by marlo1 Aug 22, 2008 (10:31 am)
Hello to all, I'm new here so please forgive my novice mistakes.   I have a 2008 CX7 with 13k miles. I'm relatively happy with it except for the rough ride. This may have been addressed in another post but does it bother anyone else? Does it get better? I haven't had any problems with the vehicle nor have any other big gripes. Replies to this message: wwest (Aug 23, 2008 8:24 am)
#131 of 131 Re: A more comfortable ride [marlo1] by wwest Aug 23, 2008 (8:24 am)
Replying to: marlo1 (Aug 22, 2008 10:31 am) When you buy "ZOOM-ZOOM" you also get, regretably, sports car handling.   And pretty damn poor FE to boot.

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