Detroit series 60 15:1 issues

How do you proove there is no fix for it ? ....I have an engine on the dyno right now that is BAD smoker i mean BAD.........i have fixed it by correcting timing I dont beleive it Retarding timing to far or Advanceing timing I beileve in """correct"" Timing to make these engines run and it is doable i have been on dyno enuf that i have done some homework here

Can you elaborate on why Lower compression will out perform the higher compression ?
For marine Detroits they use 16:1 Compression pistons and those engines are rated quite abit higher HP then in trucks just wondering what makes you say lower compression will outperform the higher compression

 

Sorry this Question was more for @ thejudges69

 

Everything we've tried and been through has not corrected the "haze" issue. After him talking more. I think his issue is more extreme then we've experienced. We've gotten a haze but never a heavy smoker. And we've also seen Internals of engines that used a bit of oil with lower compression pistons and it was always due to carbon build up. With our builds, piston, cam, injector and run combination, we don't get the haze, no oil usage and we have seen great numbers on the dyno.

As for compression, it's been proven on a diesel engine that lower compression with the right combination will out perform a higher compression engine with the same build sheets. Gas engines are opposite, higher compression, higher octane fuel, more power. Diesels are lower compression more fuel, more air more power. I know for sure of a Cummins that was 12:1 compression to win pikes peak with custom machined domes cause 13:1 wouldn't get the horsepower where it needed to be.

Curious, what's your fix for his engine? Dyno? Then what?

 

The smoke issue seems to be a result of the LO NOX programming. I’m not sure what all is changed. But timing is retarded.

 

BOI Timing is what i am working on I mean it may not clean up the slight haze totaly till the engine is warm but it cleans up the popping missing and smokeing out the Parking lot the engine i am working on was smokeing out the parking lot in this 15-20Degree weather i thot thats rediculous Ive got to to where you just see a very slight haze till it warms

 

What numbers Do you see on dyno then ? do you guys do your own programs ? ANd i guess you are likly useing the 16.1 Compression pistons then ?

 

We don't do programs. I wish we did. I have one from a guy in NY that runs great but pours to much fuel. But 960K on my ddec 2 kits with no TLC liners. I'm not complaining, but it's coming out this week and an HK is going on it's place as soon as I find a suitable turbo. My tune for the new engine will come straight out of australia. We're gonna break it in with a stock DD 575/1850 tune and turn it up later if I'm not happy. I'm shooting for 550 rwhp.

Numbers...., we're seeing on out 12.7's with yes, 16.5:1 compression 540-560 RWHP . Torque I can't answer cause our dealer has an old dynamometer that for some reason didn't give a torque output. My ddec 2 didn't have 15:1 pistons cause I didn't know it was an option then or it would have. My BK block I have in my shop was scheduled for 15:1 with 14 liter cam and injectors, bit that's since changed since I decided to put this HK in.

 

Ya see we've never experienced the popping and missing like your mentioning. I'll admit, that's likely needing some experimenting to get sorted.