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Old 28th July 2011, 13:06   #16
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Default Re: Engine, Gearbox, Diff ratios, axles options for the JEEP

dear frankenstein,
can you pls clear some doubts for my mm540 ? i have a toyota 3C engine for 40thou, from a friend, who says its a direct fit to the isuzu GB. he has fitted the same in a contessa, and the toyota 3c-T gives approx. 150bhp ...phenomenal...
1. is toyota 3C + isuzu 5 speed + 4.27 diff = suitable for mm540 ?
2. should the rear diff housing need to be changed to centre aligned, as the isuzu gb's rear shaft is from centre ?
3. or will toyota 3C can be matched with the OE KMT90 GB of mm540 ? is this adviseable ? if yes, can the diff ratio be lowered from the OE 4.88 to 4.27 or even 3.73 ? which combination will be best suitable ?
best regards.
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Old 28th July 2011, 13:50   #17
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Default Re: Engine, Gearbox, Diff ratios, axles options for the JEEP

Quote:
Originally Posted by jeepster View Post
IMO you will only need a bellhousing to join MDI3200TC with your GB.

also note that the bolt pattern of t90 matches with KMT90, so if a bellhousing with KMT90 will do the job.

the only task is to check the engine with similar bolt pattern of MDI3200B which uses a KMT90 GB.

IMO the international series engines share the bolt pattern with MDI3200 please verify that. (i am not 100% sure )

arka & spike will be able to answer this question more than any one else.

(as B.D sir are not online.)

rgds,
Nikhil
@jeepster - Thanks for the inputs, will surely check if the International engine's bolt patterns matches with the MDI3200, and will also check if the bell housing does the job for me.

Regards,
Deepak Shivanna
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Old 28th July 2011, 22:05   #18
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Default Re: Engine, Gearbox, Diff ratios, axles options for the JEEP

Quote:
Originally Posted by shekaran View Post
dear frankenstein,
can you pls clear some doubts for my mm540 ? i have a toyota 3C engine for 40thou, from a friend, who says its a direct fit to the isuzu GB. he has fitted the same in a contessa, and the toyota 3c-T gives approx. 150bhp ...phenomenal...
1. is toyota 3C + isuzu 5 speed + 4.27 diff = suitable for mm540 ?
2. should the rear diff housing need to be changed to centre aligned, as the isuzu gb's rear shaft is from centre ?
3. or will toyota 3C can be matched with the OE KMT90 GB of mm540 ? is this adviseable ? if yes, can the diff ratio be lowered from the OE 4.88 to 4.27 or even 3.73 ? which combination will be best suitable ?
best regards.
Sir, Do you have the 4wd GB - Else if you can mate a Isuzu GB, you could also mate the Tavera GB.

Now, where is this 3CT engine?
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Old 28th July 2011, 22:27   #19
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Default Re: Engine, Gearbox, Diff ratios, axles options for the JEEP

Quote:
Originally Posted by shekaran View Post
dear frankenstein,
can you pls clear some doubts for my mm540 ? i have a toyota 3C engine for 40thou, from a friend, who says its a direct fit to the isuzu GB. he has fitted the same in a contessa, and the toyota 3c-T gives approx. 150bhp ...phenomenal...
1. is toyota 3C + isuzu 5 speed + 4.27 diff = suitable for mm540 ?
2. should the rear diff housing need to be changed to centre aligned, as the isuzu gb's rear shaft is from centre ?
3. or will toyota 3C can be matched with the OE KMT90 GB of mm540 ? is this adviseable ? if yes, can the diff ratio be lowered from the OE 4.88 to 4.27 or even 3.73 ? which combination will be best suitable ?
best regards.
Hi Shekaran.

40K is a very very good price for a 3c.We in HYD use adapter plate to mate the Isuzu 4/5 speed 4wd gearbox , as far as i know it is not a direct fit.
Its not 150bhp, 3C is around 80 to 85 bhp .

1. Yes 3C+ISUZU 5 SPEED + 4.27 IS GOOD FOR 540. This combo gives you the best of both worlds, torque + highway cruising.Torque still would be adequate .
2. Rear diff has to be changed to a center aligned one because the Isuzu GB shaft connects to the center or slightly towards the left.
3.You can mate the 3C with the KMT 90 , but it will be too noisy , lot of vibrations . The kmt 90 is a low rpm GB and the 3c is a high rpm engine.
Stick to isuzu 4-speed or 5-speed .4.27 is ideal , 4.88 you will have backlash in 1st and 2nd gears , not required .

Regards
Sandeep.
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Old 29th July 2011, 20:01   #20
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Default Re: Engine, Gearbox, Diff ratios, axles options for the JEEP

@ Frankenstein
thank you for enlightening me , plz help to to choose the best option out of the following :-
nissan RD 28+ nissan 5spd 4wd +550 xd ngcs diff. OKBJ( 4.88:1) or isuzu 4JG2 TC + isuzu 5spd 4WD + 550 xd ngcs diff. OKBJ( 4.88:1). i will also be adding 255/85 r16 tires and would also like to know which is the best LSD for the above .
regards
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Old 29th July 2011, 22:31   #21
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Default Re: Engine, Gearbox, Diff ratios, axles options for the JEEP

Hi sammyaulakh ,

RD28 is an awesome engine. I have not experienced the nissan gear box , but driven a mm540 with rd28+kmt90+4.88 diff. The Jeep moves in 4th gear from stand still. If you are going for RD28 then go for 4.27 or 11/41 .

I have bought a Nissan RD28 euro 2 engine for my Kaiser JEEP. There are 2 RD28s available in the market, make sure you buy the latest Truck engine , not the old car engine.

Isuzu 4jg2 i have driven but in the trooper not the JEEP. It is power full in the sense good low end torque but very slow after 2000rpm.

Both the engines are as silent as petrol engines , but the RD28 straight 6 will smoke the G2 . G2 s power delivery is like that of the Di turbo engine slow and powerful . RD28 revs upto 5000rpm and it moves the JEEP from standstill with out jerks in any gear.

What is price of the RD28 and nissan Gearbox. Did you source the tyres in that size you mentioned.

NGCS + OKBJ is perfect . Army MM550 rear axle comes with LSD standard.

Attaching the pics of the trooper engine

When i see that RD28 540 , ill post pics of the engine bay.
Attached Thumbnails
Engine, Gearbox, Diff ratios, axles options for the JEEP-img_4189.jpg  

Engine, Gearbox, Diff ratios, axles options for the JEEP-img_4184.jpg  

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Old 29th July 2011, 23:23   #22
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Default Re: Engine, Gearbox, Diff ratios, axles options for the JEEP

@ sandeep,
thanks a ton bro for clarifying my doubts. one more thing where can i source the 11/41 crown pinion set from , i am looking for a turbo charged rd 28 , have just been able to source the gear for 25 grand. i have ordered the tires with the local dealer, he says it is going to take a couple of weeks to get them as it is an odd size and about the the price he will only be able to tell once there is confirmation about the availability .
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Old 30th July 2011, 19:11   #23
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Default Re: Engine, Gearbox, Diff ratios, axles options for the JEEP

Quote:
Originally Posted by Frankenstein View Post
RD28 is an awesome engine.

I have bought a Nissan RD28 euro 2 engine for my Kaiser JEEP. There are 2 RD28s available in the market, make sure you buy the latest Truck engine , not the old car engine.

What is price of the RD28 and nissan Gearbox. Did you source the tyres in that size you mentioned.

When i see that RD28 540 , ill post pics of the engine bay.

hmm where can one get this RD28 (E-II) engine?
price?

most importantly spares availability?

Quote:
RD28

* 2825cc SOHC 85mm bore

RD28 Series 1
RD28 series 1 in a C33 Nissan Laurel

* 12 valve

94 PS (69.1 kW; 92.7 bhp) @ 4800rpm
18.0 kgm (177 Nm; 130 lbft) @ 2400rpm

* Nissan Skyline R31 series 1985-1987
* Nissan Laurel C32 ~ C34 series 1986-1993
* Nissan Cedric / Nissan Gloria Y30 ~ Y32 series 1985-1993
* Commercial (taxi) Nissan Cedric / Nissan Gloria Y31 series sedan 1987-1999
* Nissan Crew K30 series 1993-1999

RD28 Series 2

* 18 valve

100 PS (73.5 kW; 98.6 bhp) @ 4800rpm
18.2 kgm (178 Nm; 132 lbft) @ 2400rpm

* Nissan Cedric / Nissan Gloria Y32 & Y33 series 1993-1999
* Nissan Laurel C34 - C35 series 1994-1999

RD28E

* 18 valve electronic injection

100 PS (73.5 kW; 98.6 bhp) at 4,800rpm
18.2 kgm (178 Nm; 132 lbft) at 2,400rpm

* Commercial (taxi) Nissan Cedric Y31 series sedan 1999.08-2002[1]
* Nissan Laurel C35 series 1999-2001
* Nissan Crew K30 series 1999-current

RD28T

* 2825cc SOHC turbodiesel

125 PS (91.9 kW; 123.3 bhp) @ 4400rpm
26.0 kgm (255 Nm; 188 lbft) @ 2400rpm

Nissan Safari Spirit series Y60 2-door soft top 1994-1997
RD28ETi1

* electronically controlled turbodiesel with an intercooler

135 PS (99.3 kW; 133.2 bhp) @ 4000rpm
29.3 kgm (287 Nm; 212 lbft) @ 2000rpm

Nissan Safari Spirit series Y61 2-door soft top 1997-1999 (automatic transmission)
RD25ETi2

* electronically controlled turbodiesel with an intercooler

135 PS (99.3 kW; 133.2 bhp) @ 4000rpm
26.6 kgm (261 Nm; 192 lbft) @ 2000rpm
source:Nissan RD engine - Wikipedia, the free encyclopedia

Last edited by jeepster : 30th July 2011 at 19:13.
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Old 30th July 2011, 23:01   #24
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Default Re: Engine, Gearbox, Diff ratios, axles options for the JEEP

Quote:
Originally Posted by Frankenstein View Post
Hi sammyaulakh ,


Isuzu 4jg2 i have driven but in the trooper not the JEEP. It is power full in the sense good low end torque but very slow after 2000rpm.


Attaching the pics of the trooper engine

When i see that RD28 540 , ill post pics of the engine bay.
That trooper engine is an NA 4jg2
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Old 30th July 2011, 23:18   #25
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Default Re: Engine, Gearbox, Diff ratios, axles options for the JEEP

Quote:
Originally Posted by sammyaulakh View Post
@ sandeep,
thanks a ton bro for clarifying my doubts. one more thing where can i source the 11/41 crown pinion set from , i am looking for a turbo charged rd 28 , have just been able to source the gear for 25 grand. i have ordered the tires with the local dealer, he says it is going to take a couple of weeks to get them as it is an odd size and about the the price he will only be able to tell once there is confirmation about the availability .

You can source the 11/41 from any scrap dealer . Turbo charged RD28, superb , let me know once you get it , i need some pics. Good luck with your project.

Jeepster i bought the engine from a friend. Try in Delhi you may find them.
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Old 31st July 2011, 01:19   #26
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Default Re: Engine, Gearbox, Diff ratios, axles options for the JEEP

@ sandeep you are welcome bro, will surely post the the pics once i start with the project ,rite now just have the gear and am off to Delhi sometimes next week to pick up the 550 ngcs that i bought,you mentioned that the 550 has a LSD at the rear would it be possible to fit it in the front diff also, if yes how many splines does the ngcs axle have , is the ngcs diff a DANA 44. @ jeepster i can check out the price and availability for you if you want me to as i am going to delhi next week hopefully.

Last edited by Amartya : 31st July 2011 at 02:54. Reason: Made minor formatting changes.Quick word:kindly use the preview post option to check for formatting issues.
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Old 5th August 2011, 13:50   #27
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Default Re: Engine, Gearbox, Diff ratios, axles options for the JEEP

Sammy in Delhi there are 2006 MM550s being disposed. IT has every thing you want with a 5 speed BA10 gear box. Buy that and change the engine. You will save a lot of cash.
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Old 13th August 2011, 13:32   #28
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Default

Saw this Mg410w being modified with isuzu 1.8 mpfi petrol engine. Mated with isuzu trooper gear box. Both diff changed and replaced with mazda diff. And yes spoa too.

Is this a good combination?
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Old 14th August 2011, 14:13   #29
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Default Re: Engine, Gearbox, Diff ratios, axles options for the JEEP

Quote:
Originally Posted by Frankenstein View Post
Hi sammyaulakh ,

RD28 is an awesome engine. I have not experienced the nissan gear box , but driven a mm540 with rd28+kmt90+4.88 diff. The Jeep moves in 4th gear from stand still. If you are going for RD28 then go for 4.27 or 11/41 .

I have bought a Nissan RD28 euro 2 engine for my Kaiser JEEP. There are 2 RD28s available in the market, make sure you buy the latest Truck engine , not the old car engine.

Isuzu 4jg2 i have driven but in the trooper not the JEEP. It is power full in the sense good low end torque but very slow after 2000rpm.

Both the engines are as silent as petrol engines , but the RD28 straight 6 will smoke the G2 . G2 s power delivery is like that of the Di turbo engine slow and powerful . RD28 revs upto 5000rpm and it moves the JEEP from standstill with out jerks in any gear.

What is price of the RD28 and nissan Gearbox. Did you source the tyres in that size you mentioned.

NGCS + OKBJ is perfect . Army MM550 rear axle comes with LSD standard.

Attaching the pics of the trooper engine

When i see that RD28 540 , ill post pics of the engine bay.
Hi Frank,

Can you please elaborate on how to differentiate between the RD28 meant for Car and Truck use. What are the technical differences between the two and any pictures of both kind of engines that can help layman like me differentiate the both if I spot them.

Regards
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Old 18th August 2011, 17:20   #30
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Default Re: Engine, Gearbox, Diff ratios, axles options for the JEEP

Krishnatanthri i dont know about gypsy , Dwarak has a 1.8 isuzu petrol in his gypsy, you can contact him.

diesel_maniac the older RD 28 is an 8 valve engine and later one is a 12 valve . For the latest truck engine the vaccum venturi is on top of the tappet cover.
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