will a F6dc4 work,turbo guys?Uping my NOS to 175 shot,can't slow timing HFM engine.Holley recominds 2 degree retard and two step colder plugs to control spark knock.I'm running with a 125 shot stock plugs and timing,want to increase flow by another 50hp.So my thinking would be to step down plugs,or water injection.But plugs are cheaper.

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

guess I can drop one but non NOS performance might suffer.Just going to keep it rich.

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

With colder plugs and a richer mixture, you going to run the risk of fouling the plugs. Because they remove heat from the cylinders and into the head better, they also take longer to reach self cleaning temperature. If you plan on using the vehicle for short runs then you going to foul them. Colder plugs are for leaner mixtures, boost or NOS. Its a safety net. You could try them, if they foul then go a step hotter. Or open the gap on the colder plugs by 0.2mm to get a hotter spark

Junaid I read where these engines don't like colder plugs.I will just stay a little rich to insure no detanation.

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

I ran a 100hp shot on a 100% stock 190e 2.3 8 valver a few months ago. It loved it.

I did up it to 150 and it detonated pretty badly, so I backed out of it. (It was on 93 octane)

Really need to figure out a way to pull timing. Nitrous makes it burn faster, so less timing gives better power. More important than colder plugs.

I used champion n12yc plugs gapped at 0.6mm when I added the supercharger. The standard gap is 0.8mm. No det but had a tendency to foul. I'm now using bosch h7dc plugs at 0.8mm gap. No det and no fouling so far.

ok I will,used the bosch 7 when I go up 50hp more.I'll stop going up on power when I hit 13.9.6 10ths to go

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

When You will put these coils please share with us the effect
greets
Kuba

kupeq you mean plugs right? I want to buy the managcore wires but they don't come with the 2,4and 6 boots.I do rum 92 octane with NOS octane treatment.They don't have unleaded high octane here.Might try airport

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

Junaid: I might have a answer to my problem with retarding timing. Lets say I cut one wire on the camsensor and add a resistor with a switch.Could I retard timing by 4 degrees,when NOS is applyed? see if 4 cylinder engines can run a 150 shot,I atg least could go 175.there's some dude I heard with a m104 approaching a 500 hp with NOS,I'll stop at 415 crank.See I could go water injection,but will the nitrogen freeze the water,or will the gasoline act like antifreeze?

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

That won't work for a few different reasons: The cam sensor detects 1 pulse every 2 crankshaft revolutions. Adding resistance to the signal won't change the timing of the signal, only the strength of the signal seen by the ECU. The cam sensor signal doesn't affect the ignition timing. It is primarily for closed loop control of the camshaft timing but also to determine if #1 cylinder is on compression or exhaust so that it can time the fuel injection events sequentially . Since the 104 is a wasted spark setup the ignition timing is derived solely from the 60-2 flywheel.

Being that there is no feasible way to make the ME control module retard timing a set amount, here's how I'd work around it. Swap from the ME wasted spark to an early 104 single coil + distributor style ignition and control it with something like a MegaJolt programable controller.

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90 300TE 4-M
Turbo 103, T3/T04E 50 trim
T04B cover .60 AR
Stage 3 turbine .63 AR
A2W I/C, 40 LB/HR
MS2E, 60-2 Direct Coil Control
3" Exh, AEM W/B O2
Underdrive Alt. and P/S Pulleys,
Vented Rear Discs, .034 Booster.
3.07 diffs 1st Gear Start

90 300CE 104.980
Milled & ported head, 10.3:1 compression
197° intake cam w/20° advancer
Tuned CIS ECU
4° ignition advance
PCS TCM2000, built 722.6
600W networked suction fan
Sportline sway bars
V8 rear subframe, Quaife ATB 3.06 diff

ok I'll wait for next engine,is it true that early m104 had piston oil sprayers?.Also I guess a early engine would be easier to work with.What I need,computers,can I use a 99 trans? which trans the strongest?
Or easier to buy a 292 inline 6 chevy,and turbocharge it.Its amazing what they get out of the old 292s

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

well I won't go any higher shot and I will go down one range,as my exhaust from making a run is hot.I need to put a egt sensor in.The only way I can go up is with water and methonal,studied yesterday.To keep temps down.or more nitrogen, glad I don't have a aluminum block

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1999 w140, quit voting to old, and to old to fight, a god damned veteran

Why not put c16 race fuel in it?

It'll help with the detonation for sure. And I'm not so positive meth injection is ment to work with nitrous. The water cools the intake charge a bit and methanol increases the octane a bit.

Nitrous cools the intake to below freezing, and Race fuel would provide all the octane you would need.

On the 302 I'm putting in my 190e I have a intake manifold spray plate. One of these are a must over about 150 hp because there is ALOT of fuel being used. If it puddles on a run, it'll smoke an engine instantly.

So just be careful, and think about a programmable ecu and a fogger setup before you go any farther.

BTW, How much does your s class weigh?

I don't know if they have unleaded at the track.Leaded would kill my oxygen sensor.So I'm going by the airport to see if they have the new unleaded 100 octane .Not that I'm detonating , I just feel the exhaust is to hot. I weight 4780 with fuel and driver.Really need me a E Class.But see so many problems with them

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1999 w140, quit voting to old, and to old to fight, a god damned veteran