Tell me if anyone els notice this. My car will cruise between 5-7 mph depend on the engine RPM. Am I crazy????
The other day I was driving through a parking lot and decided to see how low I can get my rpm to go on 1st gear before the can shut of. So I slow down starting from 10 mph. The car start to slow down all the way to 5, but then stay at 5. I thinkin, hey I might be going down a slope or something so I let the car roll. I drove around Sam's club without steping on the gas or clutch on first gear. Now if I hit the brake and go under 5mph the car will cut off like anyother MT.
Does anyone els notice this on their MT 8's?

 

Heh. Umm... yeah... the ECU will keep the engine running even if you're in gear. You should try it in my diesel pickup. In 1st gear, it could probably drag an 8 sideways across asphalt witohut touching the accelerator.

 

is that your first MT??

 

Congratulations on being the first person in the world to notice something that 99% of all manual transmission cars do.

Also, it has absolutely nothing to do with the ECU. It's called "torque" and contrary to popular belief the RX-8 actually posesses some.

 

uh.... my other car doesn't do that. It's a 5 speed turbo eclipse. Well I guess what's old to you is new to me. I'll this on other manual transmission cars to see if it does the same thing. Well thanks

 

i didnt know that either

 

Guess I'm one of the remaining 1% never know that.... I'll try with my beat up civic first

 

Take a basic physics class, a body in motion will want to stay in motion, a body at rest wants to stay at rest .
Once you get the car rolling it will want to continue moving, the engine is capable of supplying enough power to keep 3028 lbs rolling along.

 

Plus the fatass driver!! (who me???)

 

That is if you don't run out of chemical energy

 

In my old Chevy Cavalier I could go from a standstill to a slow cruise by letting off the clutch just right without touching the accelerator. Same goes for my old Honda Accord. My Ford Focus, on the other hand, fails miserably whenever I try.

 

You need to take into account the rolling resistance of the wheel bearings, the tires, and the air resistance (yes even at 5mph)... all of which you would learn about in a "basic physics class"... remember friction? We aren't driving in outerspace here.

 

I had a VW GTI w/ a VR6. 2800lbs w/ 174 lb/ft of torque on tap right near the bottom. If very careful and ruthless on the clutch, I could START the car from a dead stop in 5th gear with no gas pedal. Eventually it would cruise at about 20mph in idle.

That is how torque works!

It didn't work on your turbo eclipse because it was probably running low compression, had no boost at idle, and thus had like zero torque below 2000rpm.

It would very very very much work on a diesel pickup, as stated above. Doesn't anyone remember those truck commercials where one truck is pulling 8 others at idle?

 

lol, friction anyone?

 

"In first gear, release the clutch without touching the go-pedal. You won't stall. You'll go. "

http://www.thetruthaboutcars.com/?p=2545

He he, Read the story on the audi RS4.

 

This is true and I've also noticed that reducing unsprung weight helps dramatically which is no surprise. I just replaced my stock wheels and 245/40 Kumho MX tires with 17inch lightweight wheels and 205/55 winter tires and now this 'phenomenon' happens with a lot less effort.

Something i definitely could not do with the wider 245.

 

You're not releasing the clutch gradually enough. I have 245 Kumho's too, and i can do it.

 

I use this in 6th to cruise at supersonic speeds at my local supersonic....

 

Alright. what I meant is it's possible but it is so much easier with the reduced unsprung weight that it almost feels natural.

 

if you drop totaleclipse and an RX-8 off a ten story building, which one will suffer more damage when sudden deceleration syndrome kicks in?

What if the 8 is in gear and trolling at 5 mph?

didn't I see you on cops with your car spinning in a circle with no one driving?