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forums123 · 04-14-2013, 10:02 PM

Everyone seems to lean towards 14" Wheels for some reason. I guess there are better LRR tire options available in 14".

IMO I figure the taller 175/70R13 tires would give a taller ratio on the final drive and keep engine RPMs down. That should improve fuel economy right?

I am a california resident, so after seeing the Federal ECU (3-4mpg gain) comment from the Original Poster, I was wondering, why does the Federal ECU improve fuel economy on the CRX HF? Is that true for all years of CRX HF and Honda Civics?

Thanks
Dave

04-14-2013, 10:02 PM	#12 (permalink)
forums123 EcoModding Lurker Join Date: Jun 2010 Location: california Posts: 15 Thanks: 1 Thanked 2 Times in 2 Posts	Everyone seems to lean towards 14" Wheels for some reason. I guess there are better LRR tire options available in 14". IMO I figure the taller 175/70R13 tires would give a taller ratio on the final drive and keep engine RPMs down. That should improve fuel economy right? I am a california resident, so after seeing the Federal ECU (3-4mpg gain) comment from the Original Poster, I was wondering, why does the Federal ECU improve fuel economy on the CRX HF? Is that true for all years of CRX HF and Honda Civics? Thanks Dave