All Detroit Diesel Kids
I’m finishing up my personal notes on Detroit 2 stroke tune parameters.
I hope to combine this data and insert it into my final notes (maybe book).
Please reply with your engine model, supposed tune HP, injector size or part number, turbo spec or part number and if bypass blower or not.
I’m really needing air pressure readings after turbo and air box pressures at WOT.
Lots of DDC owners do not have this data unless during a survey, If available, I can use this data.
Any DDEC data if available is usable also.
My personal trials are after air box pressures / HP tune. All data is appreciated.
I will bump this tread from time to time to keep new members contributing.
Thx
Captain Ralph
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All Detroit Diesel Kids, need your engine data
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03-07-2020 10:15 AM #2Senior Member
- Join Date
- Jul 2013
- Posts
- 1,188
Re: All Detroit Diesel Kids, need your engine data
This would be some great info. I'd also like to know egt temps (and location of egt sensor) for detroits. When overpropped we were seeing egt's of 900deg++ Once more appropriately propped the egts dropped to 800deg max.
Our egt sensors are in the exhaust flange that clamps to the turbo 8v92TI @ 600hpSOUTHPAWS
1986 52C Hull #391 8v92TI
PENSACOLA, FL
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03-09-2020 07:52 AM #3
Re: All Detroit Diesel Kids, need your engine data
J&T 671n. 260 hp. N70 injectors.
Robert
MANCHIONEAL
1973 43DC #365
Mattox Creek, VA
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03-25-2020 02:33 PM #4Registered Member
- Join Date
- Sep 2018
- Posts
- 48
Re: All Detroit Diesel Kids, need your engine data
1998
692 ddec 625 hp
rb5236138 unit injector
mitsubishi turbochargers
transmissions zf 3.11 gear ratio
2350 rpm wot
1950 rpm 70% load
50.50 gph at 1950 rpm
5 bladed 36" x 52.9" wheels balanced & blue printed to class 1 iso, reduced from 36" x 55.5" to reduce loadfrom 80+ to 70-74Jackpot
98 43' CNV # 27
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Re: All Detroit Diesel Kids, need your engine data
1972 43' DCFB Hatt
6-71N J&T 310 hp, Engine Mo# 6055M
Injectors N80-"A"
I have spec pages of
1) all torques
2) "slicks" and graphs of power/torque curves
3) the Hatteras "Vital Information" Page
4) My Excel page of fuel filters, etc.
I could photo copy and attached as desired.50 Years on the Great Lakes...
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03-30-2020 06:56 PM #6Registered Member
- Join Date
- Nov 2017
- Posts
- 43
Re: All Detroit Diesel Kids, need your engine data
My data plate.25EB9302-BE8E-47AC-9F3A-734BDA68F633.jpg
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04-06-2020 08:55 AM #7
Re: All Detroit Diesel Kids, need your engine data
SCUSI 12V71 port engine tag
SCUSI
1981 55C
Hull #: 328
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Re: All Detroit Diesel Kids, need your engine data
Some HP questions just came up on another thread that reminded me of this old, ongoing project.
Thought I would start sharing what I have assembled so far.
These list are just designed to help us together when we talk about Detroit engines since there are so many tunes out there.
Constructive input is welcome.
Quick list for 12V71s.
P 7xxx Port serial number range
S 7xxx Stb serial number range
XXX / XXX
SAE or Flywheel H P / Shaft H P
NA Natural Aspirated
TI Turbo & Inter-cooled
TA Turbo & After-cooled
Allison, TD or ZF clutch
Rated RPM and some additional notes
Injector size.
P 7122-3000, 7122-3300
S 7122-7000, 7122-7001
359 / 340 NA TD 340SHP continuous @ 1800
N55
456 / 437 NA TD 2100rpm
N65
525(500?) / 480 NA TD 2300rpm, 340SHP continuous @ 1800
N70
525 / 490 NA Allison
N70
P 7122-3300, 7122-3302
S 7122-7300, 7133-7302
539 / 510 TI TD 2100rpm
N70
675 / 650 TI TD
N90
750 / 720 TI TD 2300rpm
7N95
7122-7303 RH only
539 / 510 TI ZF 2100rpm
N70
850 / 825 TI ZF Covington
9215
870 / 840 TI ZF 2300rpm
9215
800 / 775 TA ZF
7015
900 / 870 TA ZF
7030Last edited by Captain Ralph; 08-29-2021 at 01:13 PM.
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08-29-2021 02:57 PM #9Senior Member
- Join Date
- Jan 2018
- Posts
- 152
Re: All Detroit Diesel Kids, need your engine data
8v92's TIC 735hp 145 injectors 2 dry turbos