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Old 29th June 2009, 02:07   #31
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Great report Arka
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Old 29th June 2009, 10:35   #32
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Default F4-134 Hurricane

Hi Guys,

A secret about the F4-134 Hurricane

XD4.9P - 12Kgm@2000Rpm

B275 - 12Kgm@1350Rpm

F4-134 - 12Kgm@900Rpm upto 16.5Kgm@2000Rpm

MDI3200 - 16.5Kgm@1400Rpm

http://www.film.queensu.ca/CJ3B/Phot...F4Dyno1962.gif

Regards,

Arka
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Old 30th June 2009, 09:00   #33
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Quote:
Originally Posted by ex670c View Post
Hi Guys,

A secret about the F4-134 Hurricane

F4-134 - 12Kgm@900Rpm upto 16.5Kgm@2000Rpm

Regards,

Arka
Hi Arka - Since the Hurricane develops such good torque at low rpm then why do you prefer the 540 for OTRs? Just want to understand the driving dynamics of these two vehicles.

Cheers
Ankit
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Old 30th June 2009, 09:34   #34
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Ankit,

Petrol Head my dear. It guzzles. Diesel engine gives minimum of 11-12 kmpl where as petrol engine gives 6-7 kmpl.
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Old 30th June 2009, 10:19   #35
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Default CJ3B vs MM540XD

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Originally Posted by GoSlow View Post
Hi Arka - Since the Hurricane develops such good torque at low rpm then why do you prefer the 540 for OTRs? Just want to understand the driving dynamics of these two vehicles.
Hi Ankit,

Torque matters, but its not the deciding factor for me. I prefer to have an engine with more RPMs.


Lets look at the engines first.

F4-134 vs XD3P
Weight - 184kgs vs 185kgs (Approx)
Torque - 16kgm vs 15.5Kgm
Max Rpm - 2600 vs 4000/4600 (XD3P with Oil Cooler)
Bhp (DIN70020) 51/55bhp vs 72/76bhp

The petrol engine is quicker, and very aggressive, but runs out of breath.

This was the very reason we started the trend of putting the XD3P in SWB JEEPs in Chennai since 2006, 10 JEEPs down its still impressive.

The Advantages of the CJ3B
1) Agility i.e power to weight or torque to weight.
2) Smaller Wheel

Dis-Advantages
1) SWB Cannot be modified beyond a point i.e no room. (WB &Track)
2) Uncomfortable for anyone taller than 5'7".

Advantages of the MM540
1) You can do significant modifications.
2) More comfortable, better seating position.

Dis-Advantages
1) Not as agile as a SWB JEEP, bigger & Heavier
2) Pronounced Body Roll.

A few Advantages of the diesel engines
1) Prefers higher operating temps. more suited to OTRs
2) Engine can take more abuse.

Regards,

Arka
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Old 30th June 2009, 14:09   #36
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Quote:
Originally Posted by dwaraka View Post
Ankit,

Petrol Head my dear. It guzzles. Diesel engine gives minimum of 11-12 kmpl where as petrol engine gives 6-7 kmpl.
Dwarka - This is the biggest reason, but in OTRs do you really worry about the fuel consumption? Actually, this was the reason I converted my Gypsy to Diesel - http://www.team-bhp.com/forum/4x4-ve...rsion-4x4.html (Gypsy Diesel conversion with 4x4)

Arka - Thanks for your feedback. This helps me understand the differences between the two better. Some people prefer petrol jeeps and some prefer diesels. I wondered why! Would a 3b with XD3P make a perfect offroader?

Cheers
Ankit

Last edited by GoSlow : 30th June 2009 at 14:11.
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Old 30th June 2009, 17:18   #37
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Quote:
Originally Posted by arka
Max Rpm - 2600 vs 4000/4600 (XD3P with Oil Cooler)
A petrol engine with far lesser revs than a comparable diesel.
Thats a first for me!

Well,noticing the torque figues and the low rev range, Is it the stroke thats responsible, Arka?
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Old 30th June 2009, 20:54   #38
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Thats a torque bomb of an engine! are you sure max RPM is 2600? Is this the same Willys Hurricane engine - Wikipedia, the free encyclopedia ???

Quote:
The L134 Go Devil was updated with the F-head to become the F134 in 1950. This engine produced 75 hp (55 kW) at 4000 rpm (although it redlines at 3200 rpm) and 114 ftlbf (154 Nm) at 2000 rpm with a 7.5:1 compression ratio. Bore and stroke dimensions were the same as the L-head engine at 3.125" x 4.375" giving 134.22cuin (2,200 cc).
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Old 1st July 2009, 10:15   #39
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Default F4-134 Hurricane

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Originally Posted by Jaggu View Post
Thats a torque bomb of an engine! are you sure max RPM is 2600? Is this the same Willys Hurricane engine - Wikipedia, the free encyclopedia ???
No I'm not sure, I was just quoting the M&M on a F4-134 Hurricane with a governor for PTO implements.

Also there is some speculation on the CJ3B page that the F4-134 can hold 3100-3300 rpm for a few seconds max.
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Old 1st July 2009, 13:36   #40
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With today's petrol, I think you can go upto a 9.0 Compression Ratio, Arka.
And Adjust the timing after it.
What do you say?
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Old 31st July 2009, 04:17   #41
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Great thread especially for newbies ike me. I also went the same way and bought anMilitary Disposal CJ3B Rcl, but it came in boxes......many boxes. ANyways its been restored now, well almost, a few days to go. I decided to let the original Hurricane engine do the duty. The agility and the noise/vibation factor matters to me a lot. Maybe, some stage later, ill get a 540/550.

Thanks Arka, its wonderful to read about how you got hooked to this 4x4.
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Old 31st July 2009, 17:31   #42
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AHA!!! . Was waiting for something like this for quite some time. I am loving it. Bring it on Arka.
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Old 15th August 2009, 12:51   #43
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Arka, You got a handsome looking M&M Cj3. Keep it up.

I am sure there is much more you have got to tell us about it. Waiting.

Last edited by Rehaan : 15th August 2009 at 13:19. Reason: Posts combined.
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Old 25th December 2009, 22:46   #44
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My favorite vehicle on team-bhp, most probably my favorite vehicle all over. I am posting very late but I never came across this thread and wondered what about this blue ex-airforce jeep which I saw on other threads because I love it. So functional, so basic and simple, I always wanted and still want something exactly like this. Everything is perfect about this jeep.
In my opinion the rims looked better in black.
Arka are those 7.00*16 ndms still available?

Regards

Pranav
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Old 19th January 2010, 06:43   #45
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Arka - Just amazing

I took such a long time read the complete posts in thread again and again.

Its really an informative thread for Newbies.

The photos are simply superb,nostalgic too.

Excellent write up , the way you build the write up is just awsome.

I give you 5 star rating Arka for preparing this thread.

Expecting more photos and informative Jeep stories.

Should have changed the name of teh thread to Arka's auto biography.

Thank you for sharing the story.
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