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sporqster · 03-28-2016, 03:15 PM

Hello all,

Was recommended to check this place out when shopping for low rolling resistance tires for my BMW E30 ghetto-hypermiler project. Looks like a set of Bridgestone B381 will be in my future based on what I've learned here: //ecomodder.com/forum/showthread.php/top-5-most-fuel-efficient-tires-lowest-rolling-2813

I'm commuting 120 miles a day for work these days, so this is a very practical project for me. Despite aerodynamics very similar to that of a house brick, I don't think the E30 is a TERRIBLE platform, and I have lots of experience wrenching on them as I also race E30's in WRL, AER, Chumpcar, etc.

Spec's:
1990 BMW 318is
M42 DOHC 1.8L 4 cylinder. 100% Stock, 10W40 synthetic oil.
185/60/14 'junk' tires @ 40PSI

Current Mods:
2.79 ratio differential pulled from 325e

Current Performance:
38MPG on the highway 60-70mph.

I would like to get this car as efficient as possible without spending more than I can make back in savings in less than a year. Given the length of the commute, that may be a reasonable budget to work with. I have a garage with a lift, mig welder and plenty of tools, so fabbing up mods is not out of the question. Looking forward to learning what I can here, and sharing my progress.

03-28-2016, 03:15 PM	#1 (permalink)
sporqster EcoModding Lurker Join Date: Mar 2016 Location: Evansville, IN Posts: 1 Thanks: 1 Thanked 0 Times in 0 Posts	Indiana Eco E30 Hello all, Was recommended to check this place out when shopping for low rolling resistance tires for my BMW E30 ghetto-hypermiler project. Looks like a set of Bridgestone B381 will be in my future based on what I've learned here: //ecomodder.com/forum/showthread.php/top-5-most-fuel-efficient-tires-lowest-rolling-2813 I'm commuting 120 miles a day for work these days, so this is a very practical project for me. Despite aerodynamics very similar to that of a house brick, I don't think the E30 is a TERRIBLE platform, and I have lots of experience wrenching on them as I also race E30's in WRL, AER, Chumpcar, etc. Spec's: 1990 BMW 318is M42 DOHC 1.8L 4 cylinder. 100% Stock, 10W40 synthetic oil. 185/60/14 'junk' tires @ 40PSI Current Mods: 2.79 ratio differential pulled from 325e Current Performance: 38MPG on the highway 60-70mph. I would like to get this car as efficient as possible without spending more than I can make back in savings in less than a year. Given the length of the commute, that may be a reasonable budget to work with. I have a garage with a lift, mig welder and plenty of tools, so fabbing up mods is not out of the question. Looking forward to learning what I can here, and sharing my progress.