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New Tires, Highway Concern

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Old 10-03-2009, 10:43 PM
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Question New Tires, Highway Concern

Hi, I am the proud owner of an 87 K5 Blazer(6.2) 4x4. I currently got new tires(not on the car yet) and have a few concerns. I know it is gonna mess up the speedometer a little bit but that is not a major concern.

The problem is that I am planing to drive it to New Jersey from Toronto Ontario in late October and have a concern. I have read that many people(including myself) have problem maintaining a constant speed on the highway. I don't experience as much troubles as others but it may down shift now and then.

I am worried that with the bigger tires this problem will intesify and I will not be able to keep a good 100-120 km/h speed in OD. I was wondering if this is a problem and what are the things that can be done to the truck to make it run nicer on the highway.

As of now I have no problems getting up to speed on the highway and need to give about 1/4 to 1/2 gas to keep the car running and the right speed.

Thanks

Phil
 
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Old 10-04-2009, 07:59 AM
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If you were having trouble maintaining speed with smaller tires, it will likely get worse with larger tires. You have two options, make your motor stronger, or change the gears.
 
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Old 10-04-2009, 08:15 PM
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Thanks for the quick response. Well making the motor stronger is kinda out of the quesiton since the only way would be to add a turbo(to much money). Now when you say change the gears do you mean in the transition or in the differential?
 
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Old 10-04-2009, 08:46 PM
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You can hop up a diesel without adding a turbo. It is just harder and almost as expensive as a turbo kit.

As for gears, I was speaking of the differentials.
 
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Old 10-04-2009, 09:53 PM
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