Warm-up differences? - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
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post #1 of 23 Old 09-09-2010, 03:16 PM Thread Starter
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Warm-up differences?

Ok, so I noticed a discrepancy in my actions between the start-up of my bike and my car ('98 civic). For my bike, I start the engine before I put my gloves on and let it idle as long as it takes me, usually about 30 seconds, and then I ride off conservatively (at least at first). My reasoning on this brief period of minimal load on the engine is so that the oil has time to resupply oil to the components in the engine that the oil drained off during the time the engine was off.

However, in my car I usually just start the engine and drive off conservatively (at least at first). [By driving conservatively after start-up, I mean that I do not rev the engine excessively, accelerate "hard," and not flog the crap out if the vehicle until the coolant is registering and on its way too normal temps.] I guess I don't care enough about the car to try to go out of my way to be nice to it.

How do you treat the engines in your vehicles? Do you treat the bike better than the others?
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post #2 of 23 Old 09-09-2010, 03:27 PM
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Starting an engine and driving/riding off gently pretty much immediately is the best strategy IF is is safe to drive and IF you don't live on a ramp to a 75 mph highway.

Oil pressure is almost instant on an engine, the engine runs much smoother at moderate revs stressing parts less, it warms up much quicker when running, blow-by gasses and water have less time to collect in the oil and turn it into acids, the engine management takes it off the rich fuel mixture sooner when warming faster reducing the excess amounts of fuel that wash the oil off of your cylinders and pollution is reduced.

There isn't a lot of good reason to idle nowadays in a modern engine.

..Tom

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post #3 of 23 Old 09-09-2010, 03:52 PM
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I remember when one guy didn't believe an engine warms up faster when driven at moderate rpms. He figured the air moving over the engine would keep it cooler longer. I did a comparison to prove it and riding the bike conservatively warmed it up much faster than idling it.

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post #4 of 23 Old 09-09-2010, 04:08 PM
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For me, warming up the car usually refers to letting the windows defrost before I venture forth into the frozen tundra.
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post #5 of 23 Old 09-09-2010, 04:42 PM
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Quote:
Originally Posted by V-Tom View Post
Starting an engine and driving/riding off gently pretty much immediately is the best strategy IF is is safe to drive and IF you don't live on a ramp to a 75 mph highway.

Oil pressure is almost instant on an engine, the engine runs much smoother at moderate revs stressing parts less, it warms up much quicker when running, blow-by gasses and water have less time to collect in the oil and turn it into acids, the engine management takes it off the rich fuel mixture sooner when warming faster reducing the excess amounts of fuel that wash the oil off of your cylinders and pollution is reduced.

There isn't a lot of good reason to idle nowadays in a modern engine.

..Tom
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post #6 of 23 Old 09-09-2010, 04:48 PM
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I pretty much just crank and go with all our vehicles, unless as mentioned the windows need to defrost. With the strom, I wait for at least the second temp bar before doing anything stressful. This can take anywhere from a few hundred feet to a few miles, depending on outside temps.
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post #7 of 23 Old 09-09-2010, 07:13 PM
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Slow........

Personally (my opinion, so don't flame me for thinking this way).....I think starting an engine (any engine) and letting it idle 15-45 seconds produces less "initial strain" on the internal parts......like he said in the first post, it allows oil (somewhat warmer oil....granted, maybe not by much??) to circulate to all the moving parts slowly. Note: I didn't say this was the "fastest way" to warm up an engine to "Operating Temperature"......I'm just saying I think it's the least-strainuous method on the engine......allowing metals (bearings, rings, etc) in the engine to come up to operating mode.
Or.....maybe I'm just getting old and it takes me longer to get going....!!!

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post #8 of 23 Old 09-09-2010, 07:29 PM
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I think Mark is actually correct but....

The Wee usually starts out at 5:00 AM so it's dark. I usually scan the dash, put the brights on, put it in gear and go. I have about 1/2 mile of wending 1 lane road before getting on the 55 mph country road - so it does get a bit of a warm up.

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post #9 of 23 Old 09-09-2010, 10:54 PM
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Does it hurt anything to let it warm up till 1 bar shows before riding?

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post #10 of 23 Old 09-09-2010, 11:18 PM
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Quote:
Originally Posted by Scarlett Harlot View Post
Does it hurt anything to let it warm up till 1 bar shows before riding?
Apart from higher wear on the engine, quicker degradation of the oil, higher fuel consumption, more pollution and longer warm-up probably not.

..Tom

2006 DL650: 202,000 km 125,500 miles, Sold
2012 DL650 139,500+ km, 86,700+ miles. Sold
2015 DL1000 New July 2015 200,000+ km, 125,000 miles.

This can help preventing from cars pulling out in front of you (SMIDSY)
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