All Detroit Diesel Kids, need your engine data

[Captain Ralph]

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

 

[rustybucket]

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 @ 600hp

 

[Jammin']

J&T 671n. 260 hp. N70 injectors.

 

[JACKPOT]

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 70-74

 

[spartonboat1]

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.

 

[Wow57pro]

My data plate.

 

[cenger]

SCUSI 12V71 port engine tag

 

[Captain Ralph]

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
7030

 

[Blowncar]

8v92's TIC 735hp 145 injectors 2 dry turbos