Torque Boost for a MG413W MPFI Gypsy

gsferrari · 18th April 2010, 08:37

Looked around a bit without finding anything conclusive. Has anyone attempted a torque-boost mod to the Gypsy using stock gearing?

Ways to do this:
1. ECU remap
2. Turbo
3. Supercharger

Of these I think the ECU remap is possible with Race Dynamics and I have seen many Esteems with Turbochargers installed. Considering the engine is the same, how hard can it be to install a beefy variable vane geometry turbo to the Gypsy?

Benefits - better torque through the rev range, better peak power, efficiency and driveability.

Can anyone point me in the right direction?

gsferrari · 19th April 2010, 10:51

Close to 70 views and no ideas yet?

Jaggu · 19th April 2010, 11:26

Crawlers + Lockers are all you need, straight fit parts. Forget everything else!

rjstyles69 · 19th April 2010, 13:37

I would rather keep my gyspy for off-roading than going in for torque boost. I did say pick up a sedan, go ahead with the list and that makes sense.

Rudra Sen · 19th April 2010, 13:41

Quote:

Originally Posted by rjstyles69

I would rather keep my gyspy for off-roading than going in for torque boost.

Riju Crawlers+Lockers help big time for off-roading. Next time check out Khan's Spider.

rjstyles69 · 19th April 2010, 16:28

Quote:

Originally Posted by Rudra Sen

Riju Crawlers+Lockers help big time for off-roading. Next time check out Khan's Spider.

Aye I hear you Sire. I meant to say if he wanted to go the turbo way then it was best to splurge on a sedan than do it with a gypsy.

I am with jaggu's suggestion of crawlers + lockers

. I havent had a chance to see spidey in person as yet, maybe some time soon.

gsferrari · 19th April 2010, 21:45

The reason for wanting more torque in the Gypsy is for better performance on and off the road. More torque = less revs needed to tackle obstacles and therefore less damage to the vehicle. More torque = less revs around town = better FE.

I really think small capacity petrol engines can do with a turbo to boost low end torque. A supercharger would also be great.

Crawler ratios make life difficult on the highways. Yes they are fantastic to have off the road and appear to be an easy fit.Locking diffs - have to experience the handling once these are installed but they sound promising.I need to spend some time with Khan soon!

Still wouldn't mind a turbo though

Desmosedici · 19th April 2010, 21:52

but with crawler gears, khan had mentioned that you get a boost on your in gear acceleration but your overall top speed is reduced by around 10%.

but isnt a performance filter and a FFE good enough for on and off tarmac purposes with a good amount of improved power delivery as compared to stock.

or i guess you want to participate with geoff in some drag racing, wot say GS

mc_anup · 19th April 2010, 22:34

Quote:

Originally Posted by Desmosedici

but with crawler gears, khan had mentioned that you get a boost on your in gear acceleration but your overall top speed is reduced by around 10%.

but isnt a performance filter and a FFE good enough for on and off tarmac purposes with a good amount of improved power delivery as compared to stock.

or i guess you want to participate with geoff in some drag racing, wot say GS

One option if you have lots to spend, would be to go in for 1.8 diesel, with twin turbos, and combine it with composite fiber transmission shaft.

mc_anup · 19th April 2010, 23:16

A good website for those looking for ideas on spares to modify their gypsy
Suzuki samurai - Shop sales, stores & prices at TheFind.com

PST Carbon Fiber Dirveshaft for Samurai - Precision Shaft Technologies, News & Events

Link for reference - Precision Shaft Technologies, Replacement Carbon Fiber Driveshafts

Got the idea of CF Transmission rods from the "The Garage" on Discovery Turbo.

tatsago · 20th April 2010, 08:30

Does the Carbon Fiber Shaft help with torque improvement?

I was planning to go the ECU remap route myself as the engine is free revving and does not produce any usable torque at lower rpms.

gsferrari · 20th April 2010, 09:35

CF shaft will not improve torque. It will allow the engine to rev much quicker than the stock heavy shaft. This will put you in the happy zone quicker but I am skeptical as far as it's application in 4WD vehicles. Checked out the links but they haven't listed any 4WD cars..mostly sport cars.

ECU Remap is happening with the Race Dynamics. That does help a lot because with the K&N and FFE my engine is running a tad lean. A richer mixture will help bottom end torque as well.

Jaggu · 20th April 2010, 11:23

Quote:

Originally Posted by gsferrari

The reason for wanting more torque in the Gypsy is for better performance on and off the road. More torque = less revs needed to tackle obstacles and therefore less damage to the vehicle. More torque = less revs around town = better FE.
===================
Crawler ratios make life difficult on the highways. Yes they are fantastic to have off the road and appear to be an easy fit.Locking diffs - have to experience the handling once these are installed but they sound promising.I need to spend some time with Khan soon!

Still wouldn't mind a turbo though

Crawlers don't kill the highway capability or anything, ask Khan. I have driven Spidey and top speeds are not compromised so much. Actually the whole set up allows high speed cruise without too much botheration of down shift, which happens in a stock vehicle. Driving in city is also very easy with them.

Turbo will be good addition but unless you have a very good set up you will be plagued with heating issues especially on a OTR. Oil cooler would be a must for such a set up.

Quote:

Originally Posted by gsferrari

ECU Remap is happening with the Race Dynamics. That does help a lot because with the K&N and FFE my engine is running a tad lean. A richer mixture will help bottom end torque as well.

Ask RD to setup two maps, one for low end (OTR) and another for mid to top (for cruising).

Mr Khan your inputs please

mc_anup · 20th April 2010, 21:48

Quote:

Originally Posted by gsferrari

CF shaft will not improve torque. It will allow the engine to rev much quicker than the stock heavy shaft. This will put you in the happy zone quicker but I am skeptical as far as it's application in 4WD vehicles. Checked out the links but they haven't listed any 4WD cars..mostly sport cars.

ECU Remap is happening with the Race Dynamics. That does help a lot because with the K&N and FFE my engine is running a tad lean. A richer mixture will help bottom end torque as well.

Hi GS,

The web does not say much about CF in an SUV, but recently saw it being installed and tested on a range rover, in this program "The Garage", that comes on Discovery Turbo. But, all said and done, they still did not take it through all the brutality that Vehicles have to go through, that I have seen on the Team-BHP OTR pics.And PST is a company which has the same for a Samurai/SJ410. You guys are in a higher league

18th April 2010, 08:37	#1
gsferrari Senior - BHPian Join Date: May 2009 Location: Chennai Posts: 1,014 Thanked: 1,806 Times	Torque Boost for a MG413W MPFI Gypsy Looked around a bit without finding anything conclusive. Has anyone attempted a torque-boost mod to the Gypsy using stock gearing? Ways to do this: 1. ECU remap 2. Turbo 3. Supercharger Of these I think the ECU remap is possible with Race Dynamics and I have seen many Esteems with Turbochargers installed. Considering the engine is the same, how hard can it be to install a beefy variable vane geometry turbo to the Gypsy? Benefits - better torque through the rev range, better peak power, efficiency and driveability. Can anyone point me in the right direction?
	() Thanks

19th April 2010, 10:51	#2
gsferrari Senior - BHPian Join Date: May 2009 Location: Chennai Posts: 1,014 Thanked: 1,806 Times	Close to 70 views and no ideas yet?
	() Thanks

19th April 2010, 11:26	#3
Jaggu Team-BHP Support Join Date: May 2004 Location: Bangalore Posts: 20,212 Thanked: 15,892 Times	Crawlers + Lockers are all you need, straight fit parts. Forget everything else!
	() Thanks

19th April 2010, 13:37	#4
rjstyles69 Senior - BHPian Join Date: Sep 2006 Location: Bengalooru.. Posts: 4,343 Thanked: 842 Times View My Garage	I would rather keep my gyspy for off-roading than going in for torque boost. I did say pick up a sedan, go ahead with the list and that makes sense.
	() Thanks

19th April 2010, 21:45	#7
gsferrari Senior - BHPian Join Date: May 2009 Location: Chennai Posts: 1,014 Thanked: 1,806 Times	The reason for wanting more torque in the Gypsy is for better performance on and off the road. More torque = less revs needed to tackle obstacles and therefore less damage to the vehicle. More torque = less revs around town = better FE. I really think small capacity petrol engines can do with a turbo to boost low end torque. A supercharger would also be great. Crawler ratios make life difficult on the highways. Yes they are fantastic to have off the road and appear to be an easy fit.Locking diffs - have to experience the handling once these are installed but they sound promising.I need to spend some time with Khan soon! Still wouldn't mind a turbo though
	() Thanks

19th April 2010, 21:52	#8
Desmosedici Senior - BHPian Join Date: Nov 2009 Location: White Village Posts: 1,484 Thanked: 586 Times View My Garage	but with crawler gears, khan had mentioned that you get a boost on your in gear acceleration but your overall top speed is reduced by around 10%. but isnt a performance filter and a FFE good enough for on and off tarmac purposes with a good amount of improved power delivery as compared to stock. or i guess you want to participate with geoff in some drag racing, wot say GS
	() Thanks

19th April 2010, 23:16	#10
mc_anup BHPian Join Date: Feb 2010 Location: Thane Posts: 25 Thanked: Once	A good website for those looking for ideas on spares to modify their gypsy Suzuki samurai - Shop sales, stores & prices at TheFind.com PST Carbon Fiber Dirveshaft for Samurai - Precision Shaft Technologies, News & Events Link for reference - Precision Shaft Technologies, Replacement Carbon Fiber Driveshafts Got the idea of CF Transmission rods from the "The Garage" on Discovery Turbo.
	() Thanks

20th April 2010, 08:30	#11
tatsago BHPian Join Date: Jun 2006 Location: Pune Posts: 93 Thanked: 31 Times	Does the Carbon Fiber Shaft help with torque improvement? I was planning to go the ECU remap route myself as the engine is free revving and does not produce any usable torque at lower rpms.
	() Thanks

20th April 2010, 09:35	#12
gsferrari Senior - BHPian Join Date: May 2009 Location: Chennai Posts: 1,014 Thanked: 1,806 Times	CF shaft will not improve torque. It will allow the engine to rev much quicker than the stock heavy shaft. This will put you in the happy zone quicker but I am skeptical as far as it's application in 4WD vehicles. Checked out the links but they haven't listed any 4WD cars..mostly sport cars. ECU Remap is happening with the Race Dynamics. That does help a lot because with the K&N and FFE my engine is running a tad lean. A richer mixture will help bottom end torque as well.
	() Thanks