Detroit 6V92 Injecter size

[cpschevy]

Just wondering if anybody can tell me what size the stock injectors are and what the max size is? I was told by a buddy that 80 or 90 is stock and 100 is max but mci told me 65 or 70 so i am confused now! Anybody that Knows more please help me out. And also what the max horsepower is for these 6V92's? I was told 375 by my friend but i would like to here from you guys!                             Thanks  Chris

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[donnreeves]

Most coaches come with somewhere around a 65 or 70, with a hp rating of 275-300. Putting 9G90's in a 6V-92 can boost it to 350HP if you have all the right bits and pieces in the engine. If not you will get a little more power and a lot of smoke.To make a clean 350hp the engine needs to have 1.05" cylinder ports, a 38 tooth gear on the blower drive, standard timing,a by pass blower, a turbo with an a/r of .95 to 1.08 on the exhaust side and a fuel modulator to prevent smoke untill the turbo boost is up. 9G100's would probably make 375hp, but I don't think you could get it off the line without a lot of smoke. Plus it would be tough to keep cool.   Donn

[makemineatwostroke]

its good to see somebody did their home work for a clean 6v92 and Chris tell your friend they have up to 625 hp for marine engines

[NJT 5573]

What year is your rig? Is it a DDEC engine? If its DDEC, I have only seen 60 and 70 injectors and been told at DD that they do not have a larger injector available, period for my engine.

A buddy at Courtwright Diesel in Tacoma showed me a DD download that I could have that is 450HP. He looked at my engine and said I have all the right parts already, except that I need a larger air box. The 450 HP flash for the 6V92TA is a coach code and calls for a 60 injector.

I'm happy with the 350HP/2110+150 RPM (2260) flash I now have. It rolls out at 80 if I want and doesn't follow trucks unless it wants to.

[tomhamrick]

How do you tell what size injectors are in the engine. I had heard talk before about tags on the injectors but I did not see any on mine when I had the covers off. I did notice orange paint on my injectors, does that mean anything?
Thanks,
Tom Hamrick
1984 Eagle 10S

[RJ]

How do you tell what size injectors are in the engine. I had heard talk before about tags on the injectors but I did not see any on mine when I had the covers off. I did notice orange paint on my injectors, does that mean anything?

Tom -

When I pull a valve cover on my GM 8V71 to look at the valve train, there is a round tag on the RH side of the main injector body, about in the middle, with a letter/number combo on it.  On your Eagle, on the passenger side these tags would be facing the driver, on the street side they'd be facing the rear of the coach.

FWIW & HTH. . .

[tomhamrick]

Thanks Russ. I will check that out.