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Old 30th September 2012, 23:52   #1
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Default Supercharged Maruti Gypsy

Just completed work on supercharging for the Gypsy.

The work involved the installation of a positive displacement twin rotor supercharger, intercooler, bypass valve arrangements, additional injector, and the required control system.

We went in for our standard, above-the-engine intercooler location for reliability.

The supercharger was located on the left side of the engine and driven by means of a belt from the crankshaft.

The configuration includes an intercooler, closed throttle bypass system, electronically controlled part throttle bypass system and additional fuelling by means of an extra injector of adequate sizing.

More details, pictures and graphs soon !
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Supercharged Maruti Gypsy-dscf1555.jpg  


Last edited by sapl : 30th September 2012 at 23:57. Reason: typos and adding picture
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Old 1st October 2012, 10:22   #2
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Default re: Supercharged Maruti Gypsy

Hi Sapl,
The retrofitment looks neat and clean. Have you done a dyno test, if so could you please post the results. Have you not considered the elctric supercharger?
Please share some more pics of how you went about this project, and also the hurdles faced. Which ECU is being used now?
-Ilango
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Old 1st October 2012, 13:36   #3
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Default Re: Supercharged Maruti Gypsy

Quote:
Originally Posted by ilangop View Post
Hi Sapl,
The retrofitment looks neat and clean. Have you done a dyno test, if so could you please post the results. Have you not considered the elctric supercharger?
Please share some more pics of how you went about this project, and also the hurdles faced. Which ECU is being used now?
-Ilango
Thanks!

We use the oe ecu with the Unichip piggyback in every one of our projects. We have done a dyno test. I will be posting the dyno graphs and many more pictures and details soon.

I am off for the Raid and may not be able to give much info before my return.

Cheers
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Old 1st October 2012, 13:52   #4
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Default Re: Supercharged Maruti Gypsy

I guess we will be able to see the Supercharged Gypsy in action during the raid .

Best of Luck !
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Old 15th October 2012, 14:15   #5
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Default Re: Supercharged Maruti Gypsy

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Originally Posted by wbd8779 View Post
I guess we will be able to see the Supercharged Gypsy in action during the raid .

Best of Luck !
Thanks ! Just back from the Raid. We had prepared a total of 4 supercharged gypsies. Won the Team prize and also the overall 3rd and 5th.

One broke it's differential tube and another retired due to electrical problems.

All the vehicles had no problems on the supercharger side, except for the the usual breakages/damages that go with the Raid.

The whine of the superchargers was distinctive and kept drawing attention.

I shall be putting out more pics and details very soon.
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Old 16th October 2012, 09:21   #6
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Default Re: Supercharged Maruti Gypsy

The 2 prize winning supercharged Gypsies at the Raid de Himalaya 2012:

The white car is that of Lt. Col. Shakti Bajaj / Maj. Amit Yadav of the Indian Army (3rd overall & in T1). This picture was taken at Hotel Grand Dragon after the prize distribution at Leh.

The green car is that of Lt. Col. H S Sidhu / Nk. Sanjay Lade of the Indian Army (5th overall & 4th in T1). This picture was taken at Tandi between Gramphoo & Keylong.
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Last edited by sapl : 16th October 2012 at 09:22. Reason: typo correction
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Old 20th October 2012, 11:59   #7
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Default Re: Supercharged Maruti Gypsy

Great work and the results look amazing. I was looking out to do performance mods for my S10. Could you let me know the details of the following.
1. Lightened flywheel
2. MSD ignition or Spitfire
3. Stage 2 clutches
4. Performance plugs
5. FFE
6. Filter
These would be the first step i plan to do.
What more mods would the 1.6 be able to handle.
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Old 21st October 2012, 17:36   #8
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Default Re: Supercharged Maruti Gypsy

Quote:
Originally Posted by Nimish anthony View Post
Great work and the results look amazing. I was looking out to do performance mods for my S10. Could you let me know the details of the following.
1. Lightened flywheel
2. MSD ignition or Spitfire
3. Stage 2 clutches
4. Performance plugs
5. FFE
6. Filter
These would be the first step i plan to do.
What more mods would the 1.6 be able to handle.
There is an s10 undergoing a supercharger fitment with us at the moment. I would prefer to start with intake and exhaust before the flywheel ignition or clutch.

The engine can easily handle a turbo or supercharger.
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Old 23rd October 2012, 08:11   #9
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Default Re: Supercharged Maruti Gypsy

This thread is worthless without MANY MORE pics!
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Old 23rd October 2012, 09:50   #10
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Default Re: Supercharged Maruti Gypsy

im aware of the S10 supercharging project. As the car belongs to a friend of mine from cochin. Moreover i would be interested in the supercharging project too. Can you share the cost involved for the same and share the details of the internals used. Do u have forged pistons, connecting rods for the 1.6 engine. What would be the increase in BHP once the 1.6 is supercharged. Do u have performance brakes for the same. ?
I have too many questions. Its just because im interested.
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Old 25th October 2012, 20:13   #11
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Default Re: Supercharged Maruti Gypsy

Quote:
Originally Posted by Nimish anthony View Post
im aware of the S10 supercharging project. As the car belongs to a friend of mine from cochin. Moreover i would be interested in the supercharging project too. Can you share the cost involved for the same and share the details of the internals used. Do u have forged pistons, connecting rods for the 1.6 engine. What would be the increase in BHP once the 1.6 is supercharged. Do u have performance brakes for the same. ?
I have too many questions. Its just because im interested.
Hi Nimish

It would not be appropriate to share costs on the forum. I will send you a pm regarding the same.

The S10 internals are strong enough for street use upto about 160 bhp (nett of supercharger). We expect the power to be in that range.

We are also peforming a brake upgrade using Wilwood components for the car.

Cheers.
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Old 25th October 2012, 20:41   #12
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Default Re: Supercharged Maruti Gypsy

Quote:
Originally Posted by 1self View Post
This thread is worthless without MANY MORE pics!
Ok 1 self, here goes !

pic 1 shows the layout from the right side of the vehicle.

pic 2 shows the left side layout

pic 3 shows the Unichip mounted in position

pic 4 shows finishing touches being given before despatch.
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Last edited by sapl : 25th October 2012 at 20:53.
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Old 26th October 2012, 07:24   #13
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Default Re: Supercharged Maruti Gypsy

Quote:
Originally Posted by sapl View Post
Ok 1 self, here goes !

pic 1 shows the layout from the right side of the vehicle.

pic 2 shows the left side layout

pic 3 shows the Unichip mounted in position

pic 4 shows finishing touches being given before despatch.
That is just awesome!
Is there any specfic reason why you need the part throttle by-pass valve?
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Old 26th October 2012, 09:52   #14
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Default Re: Supercharged Maruti Gypsy

Quote:
Originally Posted by 1self View Post
That is just awesome!
Is there any specfic reason why you need the part throttle by-pass valve?
The part throttle bypass is necessary only when you have the throttle body AFTER the supercharger.

Unlike a turbocharger where the boost roughly coincides with the amount of throttle opening, the supercharger's discharge is directly proportional to the rpm of the engine. Hence it is vital to bleed off excess air at part throttle to prevent damage and other symptoms such as poor driveability. Of course, the management of the bleed has to be a delicate balance between performance and safety/driveability. We manage this bypass through the Unichip, keeping in mind the throttle position, manifold pressure and rpm.

However, most stock supercharged vehicles have the throttle body BEFORE the supercharger. In such cases, the part throttle bypass is not required.

For competition applications, the throttle body after the supercharger results in much more instantaneous engine response.

Hope this clarifies.

Last edited by sapl : 26th October 2012 at 09:56.
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Old 4th July 2014, 18:18   #15
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Default Re: Supercharged Maruti Gypsy

Great work on the Supercharger ! Could you please give us more information on the output after the supercharger fitment. Please do post the dyne results too if possible.
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