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Old 8th June 2011, 14:34   #46
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Default Re: My Turbocharged Maruti 800 MPFi

@ Swiftboost great project. Wish you all the Success. Take care of the Turbo as you are using an over sized Turbo (Swift being a 1.2L Engine). You might choke (deprive it of suffucient air) & damage the Compressor driving at low RPM
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Old 8th June 2011, 16:31   #47
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Default Re: My Turbocharged Maruti 800 MPFi

@Turboguru - I think you may have misunderstood my post. The turbo used in my M800 turbo build is not a 1.3L swift diesel turbo (KP35), instead I used an MHI TD025.

Besides, the KP35 turbo may not be an oversized turbo for an M800. Usually, turbo sizes (if not the exact specs) cannot be compared between diesel and gasoline engines based on their engine displacement (CC) alone. You often find diesels engines using much smaller turbo as compared to a gasoline engine with similar displacement.

The present setup does not show any signs of choking. Anyways, thanks.
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Old 9th June 2011, 14:36   #48
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Default Re: My Turbocharged Maruti 800 MPFi

thanks for the clarification on the Turbo used. I Jumped in between the post my bad . Am not too familiar with the MHI Turbos so no comment.

FYI generaly Turbo selection is based on the amount of boost required & flow handling capacity of the Compressor.
Since Gasoline Engines have wide range of flow as the max RPM can reach 6k (against Diesels where max RPM is around 4.5 to 5k RPM), Turbo Manufacturer generaly tweak with the Compresoor wheel blade design for the same size of the Turbo to handle this extra flow.
Any way if you are not getting any signs of Turbo Choking
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Old 10th June 2011, 08:22   #49
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Default Re: My Turbocharged Maruti 800 MPFi

@ Turboguru - MHI (Mitsubishi) turbos are quite good turbos and are widely used as OEMs turbos mostly in jap cars.

I dont feel any signs of choking. Maybe part of it is bcos the turbo is meant for a slightly larger 3 cyl gasoline engine.
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Old 15th June 2011, 16:15   #50
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Default Re: My Turbocharged Maruti 800 MPFi

Quick update -

Finally got some time to fix the oil leak at the turbo oil source line. so, no more oil leaks.

Now, I need to replace the ABS/plastic turbo plumbing pipe and with a fabricated metal one. I kinda knew that the plastic piece may give up with moderate levels of boost.

Next - ECU installation and tuning. Hoping to get that done soon.
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Old 20th June 2011, 14:25   #51
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Default Re: My Turbocharged Maruti 800 MPFi

Took a few pics of the engine bay of my M800 turbo.

Pics attached below -
Attached Thumbnails
My Turbocharged Maruti 800 MPFi-m800t-enginebay2.jpg  

My Turbocharged Maruti 800 MPFi-m800t-enginebay5.jpg  

My Turbocharged Maruti 800 MPFi-m800t-enginebay6.jpg  

My Turbocharged Maruti 800 MPFi-m800t-enginebay9.jpg  

My Turbocharged Maruti 800 MPFi-m800t-enginebay12.jpg  

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Old 21st August 2011, 20:01   #52
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Default Re: My Turbocharged Maruti 800 MPFi

Its been a while that I updated this thread.

Latest -

1. Installed Race Dynamics piggyback ECU a few weeks back.

2. Installed new MGP clutch & pressure plate (Old one packed up sooner than I thought)

3. Installed a new set of upgraded injectors (stock ones could not support much boost)

4. Rigged in a Autometer boost gauge and a pricol tachometer.


The car is much more fun to drive with a new clutch and the new up sized injectors are able to supply enough and more fuel. Tried pushing it to 1bar boost, the engine/car did just fine. But, the clutch may not last too long if I run high boost regularly.

more updates, later.
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Old 21st August 2011, 21:05   #53
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Default Re: My Turbocharged Maruti 800 MPFi

cool. you using 601 or 901? What tires are you running?
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Old 21st August 2011, 21:19   #54
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Default Re: My Turbocharged Maruti 800 MPFi

@ kutlee - Its the new RD piggyback ECU. Tyres are Yokohama.
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Old 24th August 2011, 10:25   #55
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Default Re: My Turbocharged Maruti 800 MPFi

Quote:
Originally Posted by swiftboost View Post
Its been a while that I updated this thread.

4. Rigged in a Autometer boost gauge and a pricol tachometer.
hi, where did you manage to get the pricol tacho from ? was it designed for a 3 cylinder or you did some mods ?
Please let us know, I've been wanting to fix a tacho for a long time but didnt know where to get it from ..
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Old 27th August 2011, 10:42   #56
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Default Re: My Turbocharged Maruti 800 MPFi

One of my friends gave me a 4 cyl Pricol tach (dint find a new one, I believe its not been sold any more). Modified the variable resistance/trimpot to (re)calibrate the tach. Its still not very accurate, I think the error is close to around 100 rpm at idle.

I think autogage and other south east asian makes have 3 cyl tachs available.
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Old 27th August 2011, 23:44   #57
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Default Re: My Turbocharged Maruti 800 MPFi

i dunno! how i missed this thread for so long. 800 being a first car, i have a great value for 800 and its puny engine. i actually did this same project in 2001 with the help of a Aussie friend who was benz engineer. After the accident that i had everything was back to stock.

Keep up the good work. and thanks for sharing.

PS: Suzuki did launch a TC version of 800/Alto as JDM alto works. It used a puny IHI turbocharger.

Last edited by SirAlec : 27th August 2011 at 23:46.
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Old 28th August 2011, 13:06   #58
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Default Re: My Turbocharged Maruti 800 MPFi

nice to know that you have tried turbocharging the F8B/F6A/-?? Was it based on a mighty boy?

I tried turbocharging a carb M800 4-5 yrs back. I found it much more challenging to get the fueling right. Despite spending a whole lot of time on it, there was lot more to be desired.

The other issue was that I was not using any ignition controller/ module. I had to back of the base dizzy timing to keep it safe on boost and this made it a bit sluggish off boost.

I dint know the JDM alto ran an IHI ... thought it ran a Hitachi turbo... I wish Maruti rolled out one of those models here ... lol ...

Do post pics of your turbo job ... hope u have some pics that u can share with us.
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Old 28th August 2011, 13:44   #59
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Default Re: My Turbocharged Maruti 800 MPFi

is the wastegate disconnected?
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Old 28th August 2011, 16:24   #60
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Default Re: My Turbocharged Maruti 800 MPFi

Yes, the wastegate was left disconnected for a while to map higher boost cells.

Tried mapping it till 16 psi and ran quite well till 1 bar. Needs a bit more fine tuning in this region.

Last edited by swiftboost : 28th August 2011 at 16:32.
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