Can't downshift while warming up

[radroach]

Take your warmups seriously when its below 30 degrees. 10 - 20 minutes idle just to melt the ice and snow off, cleaning salt off the windshield. Double clutching or slowly rev matching between 1st-2nd-3rd, warming the clutch and tires up.

[Jesse36m3]

[Ozzman]

Sometimes my trans doesn't want to go down to 2, it's just it's way of saying "HEY ASSHOLE THE OIL AINT WARM ENOUGH REV SAFELY, DRIVE LIKE A SNAIL RIGHTNOW DIPSHIT!"

[pushrod]

Originally Posted by radroach

Take your warmups seriously when its below 30 degrees. 10 - 20 minutes idle just to melt the ice and snow off, cleaning salt off the windshield. Double clutching or slowly rev matching between 1st-2nd-3rd, warming the clutch and tires up.

Warmups are bad. Turn the key, wait for the oil light to go off (usually under 1 second), put it in first, and drive away sedately.

[Decay107]

Originally Posted by pushrod

Warmups are bad. Turn the key, wait for the oil light to go off (usually under 1 second), put it in first, and drive away sedately.

You really ought to at least wait for the idle to normalize under 1000 rpms. I mean 20 minutes is insane, but no warm up is bad (blowby, cold engine clearences, oil pump bypass valve, etc). But hey, It's your car, do what you want.

[Stang70Fastback]

I basically wait the 30-45 seconds it takes for the RPM to snap back to the lower level. Then I drive gently until warm. If you don't drive the car to help it warm up then all you're doing is letting it run LONGER at less-than-optimal temps with less-than-optimal oil flow.

Slightly off topic: During that 30-45 second warm-up period, does anyone else's engine tend to stumble a few times. Just a split second blip almost like a misfire?

[Decay107]

Originally Posted by Stang70Fastback

I basically wait the 30-45 seconds it takes for the RPM to snap back to the lower level. Then I drive gently until warm. If you don't drive the car to help it warm up then all you're doing is letting it run LONGER at less-than-optimal temps with less-than-optimal oil flow.

Slightly off topic: During that 30-45 second warm-up period, does anyone else's engine tend to stumble a few times. Just a split second blip almost like a misfire?

Yeah, mine does that occasionally.

[Stang70Fastback]

Yeah not every time. I think it's just the engine getting its shit together. The way it happens doesn't strike me as more than the equivalent of the engine clearing its throat. Then again, never had that happen on any other modern car so I was curious.

[pushrod]

Originally Posted by Stang70Fastback

Slightly off topic: During that 30-45 second warm-up period, does anyone else's engine tend to stumble a few times. Just a split second blip almost like a misfire?

Those are small afterfires from super high EGTs. The computer retards timing to force the cats to warm up as fast as possible.

[pushrod]

Originally Posted by Decay107

But hey, It's your car, do what you want.

Thanks, will do.

I don't seriously wait 1-second to drive it. I start it, scrape the windows if applicable, settle in the seat, and then drive it. It's more like 1-2 minutes. In the summer though, I sometimes let the car roll before I've even started it.

[Ultramaroon]

Originally Posted by pushrod

Those are small afterfires from super high EGTs. The computer retards timing to force the cats to warm up as fast as possible.

The more I learn about this machine the more I am amazed. Major tech under that hood. ...dashboard :P

[Stang70Fastback]

Yeah! Science bitch!