Welcome • User Guide
ToS • Privacy • Canary
Donate • Bugs • License

©2026 Poal.co

1.1K

I have been there a few times. You can do this with any car(in the past) but if you want to engine brake down a large grade it better be fuel injected. Engine braking with a carburetor is gonna blow your exhaust up as soon as you turn the ignition on. Also engine braking will retain your power brakes whether they are vacuum or hydraulic.

Most new cars are so faggoty you can't even do any of this.

I've rolled into gas stations before after running out of gas. Pretty awesome feeling of relief. This was all moreso when I was younger and broke, only buying gas as needed.

I have been there a few times. You can do this with any car(in the past) but if you want to engine brake down a large grade it better be fuel injected. Engine braking with a carburetor is gonna blow your exhaust up as soon as you turn the ignition on. Also engine braking will retain your power brakes whether they are vacuum or hydraulic. Most new cars are so faggoty you can't even do any of this. I've rolled into gas stations before after running out of gas. Pretty awesome feeling of relief. This was all moreso when I was younger and broke, only buying gas as needed.

(post is archived)

You are currently inside a comment thread.
Click here to see all the comments (90).
[–] • 0 pt (edited )

The worst is mechanical gasoline injection. God I hate it. Over time the plethora of diaphragms, springs, poppet valves and other fuckery all wear out. Basically have to replace everything.

Mechanical diesel injection on the other hand is tits. Not tons of power but that shit will run forever. Until you run out of diesel. Then it's a bitch.

Edit: If I ever have to look at one more microfiche I'm gonna loose it.

[–] • 0 pt

You talking about the mechanical pumps like of some of the MB (and Alfas?) in the late '60s? I've got 200 k miles on my 67 MB pump with no issues. Bosch K-Jet (CIS) works well too if the fuel is clean. Agreed, diesel is great as long as the pump is kept clean inside.

[–] • 0 pt (edited )

I'm talking about Bosch mechanical gasoline injection. Not the pump. Essentially the air flow meter which is just a large plug on a stick opens little slits allowing for more available fuel. Than there is diaphragms and regulators and adjustments and vacuum bullshit up the wazoo to fine tune it. It's a fucking nightmare.

Edit: Yes K-Jetronic falls in this category.

[–] • 1 pt

OK. Bosch also made a mechanical gasoline injection system that used a pump similar to a diesel, based on similar systems used on aircraft to deal with problems with float bowls during high G manouevers. I don't think they have been in common use for 50 years. What you are talking about is the K-Jetronic system with the fuel distributor sitting atop an air box with the round metering flap. Easy enough to maintain if the fuel is kept clean but the distributor is considered factory rebuildable only. It's a messy nightmare like you described, requiring special jigs and gauges to set it up correctly. the pump is worth as much as the car. https://www.hemmings.com/parts/item/Air-Intake--Fuel-Delivery/Fuel-Injection/Porsche-911-Bosch-MFI-Mechanical-Injection-Pump/19835.html '