Car Chat

[Eye of the Tiger]

I think they have been doing this for a long time

I'm pretty sure that is how you can bump start a car with a manual transmission.

If RPM is like 150 and you're giving it throttle, it will inject.

[cawimmer430]

This is for 12,000 RPM who in the MB Icon-E thread admitted his love for the current C-Class Wagon in AMG trim. Well, it doesn't always have to be AMG!

C300 T-Modell in Hyacintred with some gorgeous non-AMG wheels. 

[Soup DeVille]

I think they have been doing this for a long time

I'm pretty sure that is how you can bump start a car with a manual transmission.

Wut?

[Eye of the Tiger]

Wut?

He must be on some good pain meds.

[AutobahnSHO]

Federal buildings prohibit parking within 50ft (hopefully to prevent an Oklahoma city bombing).

Today I go to the Commissary (grocery store) and no lie this 80+ white haired woman is sitting on a bench and an 80+ white haired man is working with the bagger to stuff all his paper bags into the back of a silver NB with sweet chromed rims which is WAY UP IN THE SIDEWALK.

https://www.google.com/maps/place/38%C2%B043'22.8%22N+77%C2%B009'01.2%22W/@38.722991,-77.1508702,154m/data=!3m2!1e3!4b1!4m6!3m5!1s0x0:0x0!7e2!8m2!3d38.7229899!4d-77.1503232?hl=en&authuser=0

I think the marker is exact.

I go in and get some veggies, cold medicine, line checkout, wait for attendant because the $1 coupon doesn't want to scan, finish up and go outside and just then old couple in silver NB now has the top down and they're driving off LOLOLOLOL

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Saw a big black Tundra with reddish-brown leather seats with the back window all the way down (didn't know they could do that!) and sunroof open.

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Also saw one of those tippy looking red Fiats that have the roof that zips all the way back (I kinda wanted one a while back, and still think it could be fun).

[Soup DeVille]

He must be on some good pain meds.

Well, I'm pretty sure manuals do Not shut off injectors. (Car would die when you put the clutch down), and I don't see how that would help them start; but mainly I was confused because the vast majority of cars I've done that in have been carbureted.

[r0tor]

Nope, manual cars kill fuel as well on deceleration... Since the engine is moving all you need to do is add fuel to "restart"

[MX793]

When engine braking down a hill, my fuel economy readout goes to the maximum value (higher than if I push in the clutch and coast) and my A/F readout also goes to the max, indicating the injectors have either completely shut off or have cut fuel to even less than idle.

[giant_mtb]

When engine braking down a hill, my fuel economy readout goes to the maximum value (higher than if I push in the clutch and coast) and my A/F readout also goes to the max, indicating the injectors have either completely shut off or have cut fuel to even less than idle.

Yep.  Taco doesn't have an MPG readout, but every other vehicle I've ever driven with one maxes out when you coast down a hill in gear.  I mean, you can feel the engine braking.

[Soup DeVille]

Nope, manual cars kill fuel as well on deceleration... Since the engine is moving all you need to do is add fuel to "restart"

OK, but the engine is only moving because the drivetrain is pushing it. Put the clutch in and nothing's pushing it, and you'd better get it restarted quick- like one revolution quick.

[Soup DeVille]

Yep.  Taco doesn't have an MPG readout, but every other vehicle I've ever driven with one maxes out when you coast down a hill in gear.  I mean, you can feel the engine braking.

And it did on the '84 toronado with the old electrified carburetor too, so I'm not sure that's a reliable indicator.

[MX793]

OK, but the engine is only moving because the drivetrain is pushing it. Put the clutch in and nothing's pushing it, and you'd better get it restarted quick- like one revolution quick.

There's enough mass in an engine spinning at a couple thousand RPM that it's not going to come to a screeching halt the instant you push in the clutch.  As long as the FI system turns back on before it drops to stall speed, it'll catch and start running again.  Seems like my injectors turn back on when RPMs dip below 1800 RPM or so if I let it coast down in gear to idle.

[Eye of the Tiger]

There's enough mass in an engine spinning at a couple thousand RPM that it's not going to come to a screeching halt the instant you push in the clutch.  As long as the FI system turns back on before it drops to stall speed, it'll catch and start running again.  Seems like my injectors turn back on when RPMs dip below 1800 RPM or so if I let it coast down in gear to idle.

[CaminoRacer]

Or it knows when the engine unloads due to the clutch vs coasting. Not a hard thing to implement since it could use the same switch as the safety lockout

[BimmerM3]

Or it knows when the engine unloads due to the clutch vs coasting. Not a hard thing to implement since it could use the same switch as the safety lockout

I don't know how it actually works, but that's what I was thinking.

[Galaxy]

I read an article on the 1994 Fiat Coupé with the 5 cylinder turbo, and what intrigued me was that it was a FWD car with a limited slip differential. Even today there are only a few FWD cars with LSD, that brings up the question who first did the combination of FWD with a limited slip?

The little Fiat was a quirky little thing.

[MX793]

I read an article on the 1994 Fiat Coupé with the 5 cylinder turbo, and what intrigued me was that it was a FWD car with a limited slip differential. Even today there are only a few FWD cars with LSD, that brings up the question who first did the combination of FWD with a limited slip?

The little Fiat was a quirky little thing.

There would probably be more FWD/LSD cars if modern TCS systems didn't permit the capability of "faking" an LSD using the brakes.  Which is all fine and dandy if the car is only occasionally driven spiritedly.  I've seen guys suffer brake fade with GTIs and ST Fords during a 60-second autocross run because their faux-LSD was working overtime with all of the twists and turns in such a brief period of time and it overheated their front brakes.

[Soup DeVille]

I want to say it was one of the Alec Issigonis Minis, but I can't find any verification of that. I know it was virtually unheard of outside of rally circles even in the late '90s.

[r0tor]

I think I remember the 200sx and Sentara SE-r having lsd... As well as the Integra Type R and Mazdaspeed Protege.

Prelude had a torque vectoring front diff

[Soup DeVille]

I think I remember the 200sx and Sentara SE-r having lsd... As well as the Integra Type R and Mazdaspeed Protege.

Prelude had a torque vectoring front diff

The EP3 Civic Type-R did too.

I think as FWD power levels went up there were only a few years where the mechanical LSD was found on some of the higher end hot hatches, before electronic LSD-analogs became the go-to solution.

[Galaxy]

The Golf GTI has one as an option.

[12,000 RPM]

1st gen Infiniti I30t had a VLSD

I had one in my second Accord. It was so aggressive I damn near had to steer out of the corner to stay in line

[Eye of the Tiger]

The EP3 Civic Type-R did too.

I think as FWD power levels went up there were only a few years where the mechanical LSD was found on some of the higher end hot hatches, before electronic LSD-analogs became the go-to solution.

'04 SRT-4 was king of FWD traction. It had the Queef.

[MX793]

The EP3 Civic Type-R did too.

I think as FWD power levels went up there were only a few years where the mechanical LSD was found on some of the higher end hot hatches, before electronic LSD-analogs became the go-to solution.

True.  Higher powered (200+hp) FWD sporty cars didn't really hit the scene until after 2000, at which point electronic traction management had become more attainable and prolific.  Most of them were 140-180 hp.  The turbo DSMs are probably the only 200+hp FWD sporty cars I can think of pre-2000.

[AutobahnSHO]

True.  Higher powered (200+hp) FWD sporty cars didn't really hit the scene until after 2000, at which point electronic traction management had become more attainable and prolific.  Most of them were 140-180 hp.  The turbo DSMs are probably the only 200+hp FWD sporty cars I can think of pre-2000.

1989 Taurus SHO had 220hp and was quite squirrelly in 1st and second...

Those had a differential that could explode so a quaife LSD was quite popular.

[2o6]

In other news, the Elantra hatchback is rated at 22MPG city for the 1.6T. And only gets 30MPG highway.

[12,000 RPM]

Lol I think that's worse than my car. Oh Hyundai

[shp4man]

When wife's Taurus accumulated 120,000 miles, I wanted to get a more reliable car for her. So we went in to the sales department of the dealer I worked for at that time. We were going for a low monthly payment on a buy, no lease.
We got a white Focus SFE with the chatterbox trans. The SFE is a semi-rare package. I really didn't care about it that much, other than it had rear disc brakes, unlike the SE car.
My wife always hated the car. So three years later, we got her one of those $17K Fusions, which she likes.
The Focus only had 22K miles, and was almost paid off, so I decided to keep it, not trade it.
Then my old dealer got mismanaged into the ground, I was 65 and expensive, so I lost that job.
Got a new, much better job, but it's a longer commute. Gas here is $4 a gallon. But E85 is a little over $3.
The SFE is flex fuel and tuned for fuel economy. And it was raining this morning, idiots abound, and damn, really appreciate those rear discs.
This weekend I'll wash it and wax it again.

[Eye of the Tiger]

I like rear drums.

[shp4man]

I like rear drums.

Especially in the rain!