Engine surge at 6.5k
02-04-2014, 07:14 PM
#11
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"warming up" the car before driving is pointless.
Hop in and drive it is the fastest way and correct way to warm up car. Just dont mash on the gas till its operating temp.
Cars were not made to idle.
Are you being sarcastic? I let my car warm up in the garage to at least 2 bars before I pull it out.
Hop in and drive it is the fastest way and correct way to warm up car. Just dont mash on the gas till its operating temp.
Cars were not made to idle.
02-05-2014, 05:38 AM
#13
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either you have a cooling problem with your AP1 or you have a bad ass AP2 that can rev to 9k
02-05-2014, 05:54 AM
#14
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GM proved this with their own testing.
The best thing for any engine is to warm it gently with use. Light throttle, low rpms until it reaches operating temperature.
02-05-2014, 07:40 AM
#16
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Idling a cold engine, after a cold start, to prevent wear is doing the opposite.
Cold engines run rich, nowadays you don't notice it as the ECU does it all for you, but it still runs rich.
Running rich washes more oil off the cilinder walls (= bad) and contaminates the oil (= bad)
Its better for the car (engine, trans, diff, brakes and all the other mechanical parts) to warm it up by driving gently.
Cold engines run rich, nowadays you don't notice it as the ECU does it all for you, but it still runs rich.
Running rich washes more oil off the cilinder walls (= bad) and contaminates the oil (= bad)
Its better for the car (engine, trans, diff, brakes and all the other mechanical parts) to warm it up by driving gently.
02-05-2014, 08:06 AM
#17
Thanks for the replies this time around. I did search this problem on the web but found nothing useful. I haven't consulted the owners manual. I should have checked that. I never flogged the S while cold, but I did perhaps assume incorrectly that after 5-10 minutes of driving and the temp reading 3-4 bars that the car was ready to push.
No worries, some people can't help sounding like asses. You may have noticed in the original post that I wasn't ever wide open throttle, and that I thought the engine may have been "somewhat" cold. I'm new to the S2k world, but my common sense has netted two cars that reached nearly 200k miles, and some typically finicky european cars that endured my driving practices for many years.
No worries, some people can't help sounding like asses. You may have noticed in the original post that I wasn't ever wide open throttle, and that I thought the engine may have been "somewhat" cold. I'm new to the S2k world, but my common sense has netted two cars that reached nearly 200k miles, and some typically finicky european cars that endured my driving practices for many years.
02-05-2014, 11:15 AM
#18
@jeremicium bars does not show anything about the oil temperature.
Although your problem sounds like it has nothing to do with temperature anyways since you mentioned 10 min driving.
It is more than enough for car to get up to the operating temperature.
Maybe this will help https://www.s2ki.com/...pm/page__st__75
I also have that hesitation in my car if that is what you are talking.
I actually did not know there was a part in owner's manual about warming up the engine
but here it is.
So I guess taking off as soon as you hit the start or waiting more than a minute(like me) are both wrong.
Although your problem sounds like it has nothing to do with temperature anyways since you mentioned 10 min driving.
It is more than enough for car to get up to the operating temperature.
Maybe this will help https://www.s2ki.com/...pm/page__st__75
I also have that hesitation in my car if that is what you are talking.
I actually did not know there was a part in owner's manual about warming up the engine
but here it is.
So I guess taking off as soon as you hit the start or waiting more than a minute(like me) are both wrong.
02-05-2014, 11:23 AM
#19
Want to know if it is the cold rev limit?
Simple.
Start with the car cold.
Take off in first gear safely and slowly keep increasing the rpm till you approach 7K RPM. When the fuel cuts out the engine will seem to surge and act just as it does against the warm rev limiter at 9K (or 8200 in the case of the AP2).
Doing this once as a test won't hurt anything and will confirm that this is what you are experiencing.
Simple.
Start with the car cold.
Take off in first gear safely and slowly keep increasing the rpm till you approach 7K RPM. When the fuel cuts out the engine will seem to surge and act just as it does against the warm rev limiter at 9K (or 8200 in the case of the AP2).
Doing this once as a test won't hurt anything and will confirm that this is what you are experiencing.
02-05-2014, 12:43 PM
#20
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4 bars is overheating.
With 3 bars, the ECU will allow wide open throttle.
So if you had 3 bars, and still experience an "engine surge" as you call it, it is not normal.
On a cold S2000 if you go to rev it out, at 6k it will feel like someone turned the ignition key off.
You may have an issue...a detailed description of the cars actions will better help.