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Old 04-20-2011, 07:58 AM   #11
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Re: Tire UP-sizing (Honda CRX HF)....did the unthinkable yesterday

And when you sell the vehicle, it'll show less miles then it actually has.
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Old 04-20-2011, 07:25 PM   #12
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Re: Tire UP-sizing (Honda CRX HF)....did the unthinkable yesterday

The fourth paragraph of the original post has MPG findings.
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Old 04-20-2011, 10:26 PM   #13
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Re: Tire UP-sizing (Honda CRX HF)....did the unthinkable yesterday

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Originally Posted by Jonathan40 View Post
The fourth paragraph of the original post has MPG findings.
But how does it compare to his mpg before with the OEM tires?
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Old 04-21-2011, 05:55 PM   #14
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Re: Tire UP-sizing (Honda CRX HF)....did the unthinkable yesterday

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Originally Posted by SentraSE-R View Post
But how does it compare to his mpg before with the OEM tires?
Hmmm..good point.
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Old 07-01-2011, 09:58 PM   #15
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Re: Tire UP-sizing (Honda CRX HF)....did the unthinkable yesterday

Sorry, all. I should have specified that my original setup is just an '89 HF with a cat-back one-piece stainless exhaust (not for fart noises....just spent the money on this quiet exhaust so that I could stop buying a new exhaust system ever year, as the stock ones tend to rust out quickly).

At the time of my original post (it was winter time; I was using the lousy winter-blend crap gas that they sell), my car was NORMALLY delivering 48MPG. The larger tires gave me 54.XXX MPG.

If I can think of any more details that I should have offered, I will.

OH, while I'm at it I may as well mention that now that it's July and I've been buying the real gasoline (non-winter-blend), I have been averaging 51MPG on my smaller 175/70/13 tires. I drive just like every other jackass out there ~73MPH on the highway and this car STILL nets me over 50MPG's! Gotta love it. Oh, and this running average reflects my past 3000 miles.

CRX HF's rule!
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Old 07-01-2011, 11:10 PM   #16
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Re: Tire UP-sizing (Honda CRX HF)....did the unthinkable yesterday

Car might need a tuneup. Why don't you have a gas log so we can track your car's fuel economy?
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Old 08-02-2011, 06:55 PM   #17
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Re: Tire UP-sizing (Honda CRX HF)....did the unthinkable yesterday

I have LS meshies on my HF and it sucks sometimes as far as ride and mileage goes. Im about to trade wheels with my old lady so I can get her 14's. Its such a rough ride with those 50 series 15's and I want her Civic to look good.
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Old 08-05-2011, 10:44 AM   #18
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Re: Tire UP-sizing (Honda CRX HF)....did the unthinkable yesterday

And as I stated in my post, "I couldn't say what the increase in mileage may have been. It was well within background noise for me and my driving style."

It all depends on the nut holding the wheel. Some tanks I get 38mpg, some tanks I get 42 mpg. Most I get around 40. Same pre-, same post-.

ABA is good when you're anal enough, or it's convenient, or the change was significant enough to take another look. None of those applied in my case.
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Old 08-05-2011, 04:52 PM   #19
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Re: Tire UP-sizing (Honda CRX HF)....did the unthinkable yesterday

Wouldn't it be nice if we could just change our transmission gearing rather that wheel size... Oh well I'm looking for some bigger ones too, my Subaru it geared far too low.

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the Cressida has almost double the engine though... 3l, 200 hp. I run 215/65r16 instead of 195/65r15 (16" equivelant from the supra is 205/55r16) BIG improvement since it's definitely not geared for economy: 5th @ 30 mph @ 1k rpm is fine and 2600rpm @ 65 mph sucks gas down. It's almost 15% adjustment on the odometer IIRC and I can still pass people without downshifting.
You have a Cressida! My girlfriend drives a '89. I love that thing, though it sucks for FE. That 7M-GE puts out amazing low end torque, I'm sure it would do just fine on 5ft tractor wheels.
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Old 08-06-2011, 06:13 AM   #20
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Re: Tire UP-sizing (Honda CRX HF)....did the unthinkable yesterday

I've noticed that I get better mileage with low rolling resistance (LRR) skinnies than I do with the racing rims I have on the Silver Sipper CRX, and I've done A-B-A testing. When I want to get better mileage, I go back to the stock rims with more rubber. When I want the Sipper to look awesome around town - I go with the $350 each rims I got with the car. =)

I'm making progress in my parts collection towards the VRX. With the new baby, this summer is out - but hopefully by next summer.

I did put a set of SI wheels & rims on - much wider - much better handling - but my mileage went to pot.
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