What will happen if I manually activated the 9th injector while driving on 560SEL 89? - PeachParts Mercedes-Benz Forum

zcc · #1 09-30-2007, 01:43 PM

It looks crazy but I wanted to ask experts as it might hurt the engine. I want my Euro 560SEL 1989 (full options) to be a bullet. People here in Kuwait advised me to replace the catalytic converter with regular pipes and get rid of the O2 sensor but I won't do that. I'm just thinking what will it be a bullet if I manually activated the 9th injector (the cold start valve) while accelerating on 560SEL 1989?

I feel its performance is less that my old 560SEC 1989. I've done almost everything except changing the two fuel pumps.

DrewGerhan · #2 09-30-2007, 03:31 PM

Sounds good in theory.....

Matt L · #3 09-30-2007, 04:52 PM

Sounds like a good way to foul your plugs, and if anything will make your car very slow.

You can't add fuel without adding air.

nhdoc · #4 09-30-2007, 07:07 PM

removing exhaust restrictions (cats) will do more to improve performance than tinkering with the fuel mixture. You might try Nitrous Oxide injection or a supercharger too, but that might just blow the engine up. As another poster pointed out, fuel and air have to mix in the proper proportions to burn best...adding more fuel will not result in more power unless it is mixed with more air.

Hatterasguy · #5 09-30-2007, 07:19 PM

You need to sell it and buy one done up by AMG. Something with the 6.0L quad cam V8 should do it. You need a "Hammer"

zcc · #6 09-30-2007, 07:36 PM

Quote:

Originally Posted by nhdoc

removing exhaust restrictions (cats) will do more to improve performance than tinkering with the fuel mixture. You might try Nitrous Oxide injection or a supercharger too, but that might just blow the engine up. As another poster pointed out, fuel and air have to mix in the proper proportions to burn best...adding more fuel will not result in more power unless it is mixed with more air.

And what I would do with the O2 sensor? If I removed the cats, will the engine idle smoothly?

Quote:

Originally Posted by Hatterasguy

You need to sell it and buy one done up by AMG. Something with the 6.0L quad cam V8 should do it. You need a "Hammer"

It's too rare to find a 560SEL AMG in Kuwait.

jhodg5ck · #7 09-30-2007, 08:13 PM

Firing off the cold start injector will not only make things overly rich it will do so in an uneven fashion which is Very risky @ full load.

Pulling the O2 will lower your fuel mileage and do nothing for performance. Idle will be OK, but not as good. Pulling the cats will have no effect on idle.

I hear the UAE is chock full of AMG 560's.

Jonathan