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Old 22nd July 2009, 14:17   #1
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Default Info on Bolero mods

Hi,

After looking at the cool 4X4s in the forum, it got me wondering if a Bolero 4X4 SLX version can be SPOA'd or is there something stopping it. What else can be included in the modifications of Bolero?

Thanks and Rgds
Vikrant
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Old 22nd July 2009, 14:33   #2
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Default Bolero Mods

Hi Vikrant,

1) Locker at the Rear Diff & LSD (or Locker) in the Front Diff with Free-Wheeling Hubs (Mandatory)

2) Taller Tyres - Lower Diff-Ratio 31" & 4.27 & 33" & 4.88:1

3) SPOA with Traction Bar

This would be my order of preference.

Regards,

Arka

PS - What engine does the Bolero have?
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Old 22nd July 2009, 14:40   #3
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4X4 SLX has a XD3PU engine . 68bhp@4000rpm. But if feel torque is lower 137nm@2000rpm. Will that be sufficient for a off-roading activity ?
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Old 22nd July 2009, 15:11   #4
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Default Torque

Quote:
Originally Posted by vikrantj View Post
4X4 SLX has a XD3PU engine . 68bhp@4000rpm. But if feel torque is lower 137nm@2000rpm. Will that be sufficient for a off-roading activity ?
XD3P in MM550XD = 76bhp@4600rpm 15.5kgm@2000rpm

MDI3200TC in Bolero = 68Bhp@3200rpm 18Kgm@1400rpm

You can definitely use the XD3PU Bolero, but it is less torquey than the above engines.

Use the vehicle for a few months, then decide if you want to change to the Military MM550XD Delphi FIP .
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Old 22nd July 2009, 15:53   #5
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Default

Arka,

One stupid question Diff lockers disable the diffrentials ability to detect resistance thus the wheels which have a good traction get hugh torque , but wouldn't such mechanism hamper vehicle's movement say turning on good traction surface or atleast make it harder. Are diff locks automatically/manually disengaged when on a good traction surface ?

Rgds
Vikrant
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Old 22nd July 2009, 17:48   #6
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Default Auto-Locker aka Dog-Clutch LSD

Quote:
Originally Posted by vikrantj View Post
Arka,

One stupid question Diff lockers disable the diffrentials ability to detect resistance thus the wheels which have a good traction get hugh torque , but wouldn't such mechanism hamper vehicle's movement say turning on good traction surface or atleast make it harder. Are diff locks automatically/manually disengaged when on a good traction surface ?

Rgds
Vikrant
Hi Vikrant,

Selectable Lockers can be locked.unlocked on demand and when unlocked function like a regular diff.

The Auto-Locker (Lock Right Part No 2413) Are locked in a straight line and unlock while turning, you can hear the click and bang!!!

They increase the vehicle's turning radius and make the steering a bit stiff.

Selectable Lockers USD1000
Auto Locker USD350

Its the price which makes the Auto-locker a clear winner.

Also the Auto Lockers have lesser moving parts and are more robust in construction.

Regards,

Arka
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Old 22nd July 2009, 18:04   #7
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Default

Have a look at this post and do look around this thread.

http://www.team-bhp.com/forum/modifi...ml#post1347355 (Yet another modded Bolero!)

Bilstein is really good according to the thread.
Again I'm not sure if it will "ruin" the 4x4 charm.
I figure good damping is always good on or off the road.
I might be wrong.

There are some modded Bolero pics, I'm not sure if this is what you are looking for.

Last edited by yzfrj : 22nd July 2009 at 18:15.
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Old 14th March 2011, 19:13   #8
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Default Your opinion on 31-10.5-15 tyre for bolero

I bought a brand new Bolero DI 4wd, the OE tyre is Ceat Formula One of 215/75-15 size. I am planning to put 31-10.5-15 size tyre. My driving involves 80% on road and 20% offroad, so I have decided on Yokohama Geolander AT-S.

I have a few doubts

1. Will 31-10.5-15 tyre fit the Bolero without any modification? OE wheel rim is 6j. What about 245/75-15 size?

2. I am planing to fit longer shackles, will this affect on road handling.



Regards

Vinshad Aziz
Attached Thumbnails
Info on Bolero mods-1.jpg  

Info on Bolero mods-2.jpg  

Info on Bolero mods-3.jpg  

Info on Bolero mods-4.jpg  

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Old 14th March 2011, 20:00   #9
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Default Re: Offroad Rims/Tyres Thread

Hi Vinshad,

1. For 31-10.5-15, 6J is not recommended, you will have to use wider rims which will cause fouling with wheel housing.

2. On road handling will deteriorate with longer shackles. Roll will increase.

Spike

OT- Any reason for selecting the LWB Bolero 4WD?
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Old 14th March 2011, 20:29   #10
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Default Re: Offroad Rims/Tyres Thread

Quote:
Originally Posted by SPIKE ARRESTOR View Post
2. On road handling will deteriorate with longer shackles. Roll will increase.
Longer shackles will make the vehicle unsafe and difficult to drive on road unless suitably modified with other suspension mods.

Please do NOT do it. The Stock OEM bolero DI has a decent suspension setup that withstands a good amount of use and abuse
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Old 14th March 2011, 20:40   #11
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Default Re: Offroad Rims/Tyres Thread

Quote:
Originally Posted by SPIKE ARRESTOR View Post
Hi Vinshad,

1. For 31-10.5-15, 6J is not recommended, you will have to use wider rims which will cause fouling with wheel housing.

2. On road handling will deteriorate with longer shackles. Roll will increase.

Spike

OT- Any reason for selecting the LWB Bolero 4WD?
I thought a LWB Bolero is more practical than a dedicated offroader like Thar. I booked my vehicle in August, 2010 and it took more than 6 months for delivery. I had an option of switching my Bolero for Thar and the sales person was more than happy to give me Thar than Bolero. Because there were more than 7 booking for 4x4 LWB Bolero which was pending.


I thought of fitting longer shackles because at the front the upward suspension travel of the axle is virtually nil as the axle is hitting the bump stop even in an unloaded condition. I asked the technicians, they said it is normal in Bolero DI 4wd. I have checked an old Bolero DI 4x4 and is in same condition.

Please check the pictures of the left and right bump stop. Nobody is in the vehicle and is in an unloaded condition.

I have found two solutions for this. Please suggest which is better.

1. Fitting of longer shackles, which will lift the vehicle and there can be upward suspension travel.

2. Recambering of the front leaf springs.

Regards,

Vinshad Aziz
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Old 14th March 2011, 21:50   #12
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Default Re: Offroad Rims/Tyres Thread

Quote:
Originally Posted by vak View Post
I thought a LWB Bolero is more practical than a dedicated offroader like Thar. Because there were more than 7 booking for 4x4 LWB Bolero which was pending.
I asked this not because of Thar, there is a SWB Bolero with MDI engine available - Bolero LX BS-III, I hope you are aware.

Quote:
I thought of fitting longer shackles because at the front the upward suspension travel of the axle is virtually nil as the axle is hitting the bump stop even in an unloaded condition.
Yes, I know this (please refer my signature below), there is a reason why it is provided.

Quote:
1. Fitting of longer shackles, which will lift the vehicle and there can be upward suspension travel.
IMHO, a decent 16" wheel will be more than sufficient for your use. Trust me! Get a decent set of tires and you are ready.

Quote:
2. Recambering of the front leaf springs.
Will again change the ride characteristics, not recommended.

Spike
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Old 15th March 2011, 00:37   #13
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Default Re: Offroad Rims/Tyres Thread

Quote:
Originally Posted by vak View Post
Please check the pictures of the left and right bump stop. Nobody is in the vehicle and is in an unloaded condition.

I have found two solutions for this. Please suggest which is better.

1. Fitting of longer shackles, which will lift the vehicle and there can be upward suspension travel.

2. Recambering of the front leaf springs.
hi Vinshad,
5 mm of suspension travel.
my 98~99 armada has more room for leaf-springs to travel.
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please check if the leaf-springs are not faulty.
Quote:
Originally Posted by SPIKE ARRESTOR View Post
Will again change the ride characteristics, not recommended.
Spike
basically you are saying to be happy with stock 5 mm suspension travel.

note:
from last 3~4 years i have lost faith in new mahindra products.
post of Vinshad just confirmed it for me.
raju bhai i am with you.

Last edited by jeepster : 15th March 2011 at 00:39.
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Old 15th March 2011, 07:10   #14
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Exclamation Re: Offroad Rims/Tyres Thread

Quote:
Originally Posted by vak View Post


I thought of fitting longer shackles because at the front the upward suspension travel of the axle is virtually nil as the axle is hitting the bump stop even in an unloaded condition. I asked the technicians, they said it is normal in Bolero DI 4wd.

Please check the pictures of the left and right bump stop. Nobody is in the vehicle and is in an unloaded condition.

I have found two solutions for this. Please suggest which is better.
This is very confusing , the travel should have at least 1.5 inches of travel

BTW have you checked the bushings ? or shackle length ( If a correct length of shackle is fitted & not the wrong one ? )

Quote:
Originally Posted by jeepster View Post
hi Vinshad,
5 mm of suspension travel.

my 98~99 armada has more room for leaf-springs to travel
Dadu you seem to have lost the RH bump stop .( rubber )

Quote:
please check if the leaf-springs are not faulty.basically you are saying to be happy with stock 5 mm suspension travel.
Right , also Spikes reply is more confusing

Quote:
note:
from last 3~4 years i have lost faith in new mahindra products.
post of Vinshad just confirmed it for me.
Cool down Dadu , you haven't experienced the late 80s ,this is far superior

Quote:
raju bhai i am with you.
OK , but I have just commented ,then how can you agree before even I say something ?

Ahh , now I Understand , you are referring to that Thar post

Sudarshan
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Old 15th March 2011, 07:35   #15
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Default Re: Offroad Rims/Tyres Thread

here some pictures of Armada shackles. (1998~99)
Info on Bolero mods-shackle1.jpg

Info on Bolero mods-shackle2.jpg
when compared with 2008 bolero the rear shackles are smaller by 1 1/2 inch.
so with current stock shackles of bolero DI i will gain around 12/16 inch (approx 2 cm).
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