D1703 engine

Rdrcr

Well-known member
Lifetime Member
Vendor Member

Equipment
L2501 w/ S2T Turbo Kit = 35 PTO HP (Current), B2601 (Sold)
May 7, 2021
757
942
93
WA
So you're saying you took a 24.8HP engine and drastically altered it to just dump more fuel and it is now pushing 37.5HP?

Sounds like a pipe dream!
I’d estimate 32HP.
Watch your EGT’s closely while you’re pushing the tractor with heavy loads. They can elevate quickly. If you’re operating in high elevation, be extra vigilant.

Moke
 

IronDPT

New member

Equipment
L2501
Nov 10, 2024
10
2
3
Florida
I’d estimate 32HP.
Watch your EGT’s closely while you’re pushing the tractor with heavy loads. They can elevate quickly. If you’re operating in high elevation, be extra vigilant.

Moke



This is the same engine with 11* BTDC at 27.4 kW or 37 HP. I want to hook it up to a dyno but cannot find one close.

I am keeping it below 800*F conservative and have an alarm at 1000*F
 

PoTreeBoy

Well-known member
Lifetime Member

Equipment
L35 Ford 3930
Mar 24, 2020
3,751
2,313
113
WestTn/NoMs


This is the same engine with 11* BTDC at 27.4 kW or 37 HP. I want to hook it up to a dyno but cannot find one close.

I am keeping it below 800*F conservative and have an alarm at 1000*F
Are you still governed to 2200 rpm?
 

North Idaho Wolfman

Moderator
Staff member
Lifetime Member

Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Jun 9, 2013
35,661
10,747
113
Sandpoint, ID


This is the same engine with 11* BTDC at 27.4 kW or 37 HP. I want to hook it up to a dyno but cannot find one close.

I am keeping it below 800*F conservative and have an alarm at 1000*F
You are not taking into account any loses in the system.
While a blank bench test engine might put out Higher HP #'s, real world use is much lower.
The hydraulic system pulls your HP output down, also electrical system, cooling, and Powertrain are all loss factors.

Find a dyno and your going to find out what real world is.
Also as @PoTreeBoy boy pointed out unless you altered the governor your not going to see the numbers you think you have.
 

IronDPT

New member

Equipment
L2501
Nov 10, 2024
10
2
3
Florida
Removing or adding shims DOES NOT give it more fuel.
Wherever or from whom ever you have read that from, they are full of it.
The shims adjust timing, not the amount of fuel.
There are other adjustments for the amount delivered each model differs in the method.




What are contributing to this conversation?
You corrected someone that increasing the lift on the injection pump did not increase the amount of fuel and said they were full of it, (which is exactly what it does) then you told me it was a pipe dream to increase the HP to 37hp.
I gave you FACTUAL info corroborating my statement. Then you want to "keep me in line."
I never said I had 37hp all I said was I increased my fuel timing to 12* AS IN the engine that was rated at 37HP. I don't care about the number all I care about is making the engine more efficient and powerful enough to run the equipment that I have. I already said I want to find a dyno but it is not available to me.

If you have actual data that says that increasing the lift of the injection pump does NOT increase fuel amount or that it is a pipe dream to make more HP by increasing the timing and fuel please share. I love to learn. Please stop telling people they are full of it and keeping them inline unless you have actual data to back it up. This is not Facebook this is a forum and we need to keep this factual as much as possible.
 

North Idaho Wolfman

Moderator
Staff member
Lifetime Member

Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Jun 9, 2013
35,661
10,747
113
Sandpoint, ID
What are contributing to this conversation?
You corrected someone that increasing the lift on the injection pump did not increase the amount of fuel and said they were full of it, (which is exactly what it does) then you told me it was a pipe dream to increase the HP to 37hp.
I gave you FACTUAL info corroborating my statement. Then you want to "keep me in line."
I never said I had 37hp all I said was I increased my fuel timing to 12* AS IN the engine that was rated at 37HP. I don't care about the number all I care about is making the engine more efficient and powerful enough to run the equipment that I have. I already said I want to find a dyno but it is not available to me.

If you have actual data that says that increasing the lift of the injection pump does NOT increase fuel amount or that it is a pipe dream to make more HP by increasing the timing and fuel please share. I love to learn. Please stop telling people they are full of it and keeping them inline unless you have actual data to back it up. This is not Facebook this is a forum and we need to keep this factual as much as possible.

Ok smart guy, show me PROOF that removing the shims alone increases the fuel amount delivered to the engine.

NOTE: Tell me one more time I don't "belong here" and we'll have an issue. :cautious:
Also do NOT misquote me, I did not tell any member they were "full of it"!
I also DID NOT tell you I was here to "keep you in line" I said I was here to keep you in check, and will continue to do so!
I keep every member of this forum in check, Period.
 

IronDPT

New member

Equipment
L2501
Nov 10, 2024
10
2
3
Florida
Ok smart guy, show me PROOF that removing the shims alone increases the fuel amount delivered to the engine.
Ask any car guy how a camshaft lift and duration increases flow.

Fuel injects SOONER in the timing, the lifter pusher further, with longer duration. It is similar to increasing the lift and duration of a camshaft. The larger the lift and longer the duration the more flow either diesel in the terms of an injection pump or air in the terms of a camshaft.

This guy explains it much better than I can.


Thank you for your time and hopefully we all have learned something today.
 

North Idaho Wolfman

Moderator
Staff member
Lifetime Member

Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Jun 9, 2013
35,661
10,747
113
Sandpoint, ID
Ask any car guy how a camshaft lift and duration increases flow.

Fuel injects SOONER in the timing, the lifter pusher further, with longer duration. It is similar to increasing the lift and duration of a camshaft. The larger the lift and longer the duration the more flow either diesel in the terms of an injection pump or air in the terms of a camshaft.

This guy explains it much better than I can.


Thank you for your time and hopefully we all have learned something today.
First and foremost go back and reread my last post edits, they are important.

You obviously do not know how an diesel injection pump operates, it's not a open path to just pass fuel from the pump to the injectors.
I does not work like a cam and lifters.
It's a metered helical slot, you can change the time that the stroke happens but you can not change the amount of fuel it passes by simply changing the stoke.

I asked you to show me proof of your claims and you came up with a complete different scenario, they do not add up to the same thing.