11 mph hwy?

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Jul 29, 2007 | 11:01 AM

eLTwerker

Thread Starter

TECH Enthusiast

Joined: May 2006

Posts: 631

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From: Metairie, LA

11 mpg city?

Mods in sig: I get only 11mpg city. I've seen guys putting down 400+rwhp getting close to 20mpg city. I'm only at 375rwhp max. Any ideas?

Last edited by eLTwerker; Jul 29, 2007 at 12:20 PM.

Jul 29, 2007 | 11:23 AM

LT1Z

Staging Lane

Joined: Dec 2006

Posts: 94

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11 mph? man thats crawling on the highway! do cyclists pass you?

On a serious note- does your car go into overdrive? That mpg is really shitty, even for your mods.

Jul 29, 2007 | 11:33 AM

87lc2

Teching In

Joined: Jun 2006

Posts: 33

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I had that problem in one of my Buicks a while ago, make sure the converter is locking up over 45 mph or so. WHen your on the highway, tap the brake while your on the gas and see if the rpms jump for a second. If not, the converter isnt locking. Most likely a TCC, no big deal. Other than than, theres really not much that can cause that bad of mileage. WHats your city mpg?>