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(Post Link) post #1 of 12 Old 23-01-19 Thread Starter
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JTDM 1900 Fuel pump query

Hi, i'm looking to remap my 8v JTD and iv'e been told by my tuner that the standard high pressure fuel pump is only good for 200hp and if i want to go further ( 210-240hp ) i will need a bigger pump. Iv'e been told the pump from a 2.4 JTD will fit on my 8v engine and give me the extra fueling.
Hope someone can help as iv'e looked on the web and not found anything conclusive.

Many thanks
Zyman.
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Every month the same question...

A pump (R65) from the 2.4 JTD 175hp will fit, but the most used pumps are broken (very rusty inside) and don't work.

Best solution: exchange the pump camshaft from your R55 pump to a R65 camshaft. Its easy, cheap and works perfect. You only need to open the front cover. Don't open the heads!!!

R65 camshaft F00R0P1110
Seal kit F01M101454

http://www.danverclan.de/media/pics/...v_jtdm_540.jpg
http://www.danverclan.de/media/pics/...v_jtdm_541.jpg
http://www.danverclan.de/media/pics/...v_jtdm_542.jpg
http://www.danverclan.de/media/pics/...v_jtdm_543.jpg
http://www.danverclan.de/media/pics/...v_jtdm_544.jpg
http://www.danverclan.de/media/pics/...v_jtdm_545.jpg
http://www.danverclan.de/media/pics/...v_jtdm_546.jpg
http://www.danverclan.de/media/pics/...v_jtdm_547.jpg

And if you use the 119s injectors - swap to 276s injectors. The are better for lower backflow and higher pressure.
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(Post Link) post #3 of 12 Old 23-01-19 Thread Starter
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Quote:
Originally Posted by crossshot View Post
Every month the same question...

A pump (R65) from the 2.4 JTD 175hp will fit, but the most used pumps are broken (very rusty inside) and don't work.

Best solution: exchange the pump camshaft from your R55 pump to a R65 camshaft. Its easy, cheap and works perfect. You only need to open the front cover. Don't open the heads!!!

R65 camshaft F00R0P1110
Seal kit F01M101454

http://www.danverclan.de/media/pics/...v_jtdm_540.jpg
http://www.danverclan.de/media/pics/...v_jtdm_541.jpg
http://www.danverclan.de/media/pics/...v_jtdm_542.jpg
http://www.danverclan.de/media/pics/...v_jtdm_543.jpg
http://www.danverclan.de/media/pics/...v_jtdm_544.jpg
http://www.danverclan.de/media/pics/...v_jtdm_545.jpg
http://www.danverclan.de/media/pics/...v_jtdm_546.jpg
http://www.danverclan.de/media/pics/...v_jtdm_547.jpg

And if you use the 119s injectors - swap to 276s injectors. The are better for lower backflow and higher pressure.
Many thanks for your help. sorry if all this has been covered before. If i do change the camshaft to R65 will the engine run okay or will i need to get some adjustments ?
Also if going for higher power is it advisable to change the fuel pressure sensor ? and i'm also guessing the MAP sensor to 3/4 bar ?
Anything else ?
And how far can you safely push the bottom end before the rods/crank becomes an issue.
Cheers,
Zyman.
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Nothing need to be adjusted. I have compared the two camshafts and the DRV values are 8% lower with the R65 camshaft. With 276s injectors the values are even lower.

You need a 1800 bar rail pressure sensor and a 3 oder 4 bar map sensor, yes.

I think you don't reach much more then 500Nm and this is no problem for the rods and crank. Before you bend the rod, your pistions will be melted.
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(Post Link) post #5 of 12 Old 29-01-19 Thread Starter
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Originally Posted by crossshot View Post
Nothing need to be adjusted. I have compared the two camshafts and the DRV values are 8% lower with the R65 camshaft. With 276s injectors the values are even lower.

You need a 1800 bar rail pressure sensor and a 3 oder 4 bar map sensor, yes.

I think you don't reach much more then 500Nm and this is no problem for the rods and crank. Before you bend the rod, your pistions will be melted.
Thank you Crosshot, do you have any part numbers for the MAP sensor ? and is it good the change the airflow sensor for a 80mm one ?
Cheers,
Zyman.
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No, i have no number, because i have used VAG sensor (MAP 4 bar and MAF 80mm). And i have no infos about the liniearisation of this sensors.

But when you search here in the threads, you will found sensors and the liniearisation.

How much HP have your car stock?
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(Post Link) post #7 of 12 Old 29-01-19 Thread Starter
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Originally Posted by crossshot View Post
No, i have no number, because i have used VAG sensor (MAP 4 bar and MAF 80mm). And i have no infos about the liniearisation of this sensors.

But when you search here in the threads, you will found sensors and the liniearisation.

How much HP have your car stock?
Okay i understand regarding the MAP sensor. Do you have any info with the 1800 bar rail pressure sensor ?
My engine is stock apart from de-cat,egr and DPF delete. Also a small remap, 150bhp approx. Next week i'm replacing the clutch for a paddle one to handle more power and new sachs DMF.
My target power is 250hp, with a thought of changing the fuel pump ( R65 mod ) MAP sensor, hybrid turbo, air filter and new intercooler.
What vehicle does the 276 injectors come from ?
Many thanks,
Zyman.
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0 445 110 276 injector came from the 120/131hp 1.9 Multijet 8v engine. Thats 2nd generation CR injectors and good for 1700 bar rail pressure. And thats a big point, because the 0 445 110 119 injectors have a high backflow at this pressure. I have send mine 119s to Bosch and Bosch test it with 1800 bar. They are not made for this pressure. With too high backflow your rail pressure drops to zero and your engine is off.

I have used a Volvo 1800 bar rail pressure sensor. Part number 8631588

But first look at your fuel rail. The 8v engine is delivered with two different fuel rails. Rail sensor in the middle = small thread; rail sensor on the side = big thread.

Do have a 115 or 120hp stock engine?

Here you can see all pictures of my "1.9 JTD 8v project" http://www.danverclan.de/media/index.php
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(Post Link) post #9 of 12 Old 30-01-19 Thread Starter
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Originally Posted by crossshot View Post
0 445 110 276 injector came from the 120/131hp 1.9 Multijet 8v engine. Thats 2nd generation CR injectors and good for 1700 bar rail pressure. And thats a big point, because the 0 445 110 119 injectors have a high backflow at this pressure. I have send mine 119s to Bosch and Bosch test it with 1800 bar. They are not made for this pressure. With too high backflow your rail pressure drops to zero and your engine is off.

I have used a Volvo 1800 bar rail pressure sensor. Part number 8631588

But first look at your fuel rail. The 8v engine is delivered with two different fuel rails. Rail sensor in the middle = small thread; rail sensor on the side = big thread.

Do have a 115 or 120hp stock engine?

Here you can see all pictures of my "1.9 JTD 8v project" Fiat Stilo Turboumbau // GTB2056V
Very interesting to see and learn from your good work Crosshot !
My car is 120 hp stock, will the pressure sensor Part number 8631588 fit my fuel rail ?
Maybe i have the 276 injectors too ! ?
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When you have the 120hp, forget all what i wrote! Its for the 115hp engine!

The 120hp engine has a 2nd generation CR system.

- R70 pump with MPROP
- 1800 bar rail sensor
- 276s injectors

But i have no informations about the MAF flow range and the MAP.
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(Post Link) post #11 of 12 Old 30-01-19 Thread Starter
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Quote:
Originally Posted by crossshot View Post
When you have the 120hp, forget all what i wrote! Its for the 115hp engine!

The 120hp engine has a 2nd generation CR system.

- R70 pump with MPROP
- 1800 bar rail sensor
- 276s injectors

But i have no informations about the MAF flow range and the MAP.
Just to make sure, my engine is the 8v multijet 120hp.........i ordered the R65 shaft and seals yesterday ! Doh :-/
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Quote:
Originally Posted by zymanhighpass View Post
Just to make sure, my engine is the 8v multijet 120hp.........i ordered the R65 shaft and seals yesterday ! Doh :-/
Sorry but nobody with a R70 pump ask for a bigger pump or pully. This pump is really good. The R55 from the 115hp is limited at around 200hp.
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