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Old 4th March 2005, 22:24   #16
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Quote:
Originally Posted by hot_rod
guys im a newbie here can any one pls tell me how much would it cost total to modify a zen 2003 model wid a free flowing exhaust and what are its benefits? pls thanx
PM speedsatya he has done it on his Zen.. cheers.
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Old 6th March 2005, 19:06   #17
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For the new Zen you could fit a K&N Filter and a Stainless steel Muffler. A Complete Freeflow system (4x2x1 style header + Mild steel muffler + piping) would cost around 6500 + fitting

I bought my esteem a stainless steel muffler. With a Stainless Steel muffler will cost you around : Rs. 8250

hope that helps !!
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Old 6th May 2005, 21:26   #18
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Terminology Used In Head Porting

Hi Guys,

As requested I am attaching a link to a site which should provide you with all the answers you need regarding head porting/polishing

http://www.alaniztechnologies.com/headterms.html

Cheers,

Viper
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Old 6th May 2005, 21:34   #19
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hey viper
thats a very informative link.
thanx a lot dude.really helps to understand the broad concept and terminologies !!

Rev
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Old 16th March 2006, 22:54   #20
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Quote:
Originally Posted by gamerno1
lovely explanation!!!!
can someone tell me how much does this cost? just curious!
also does this require freeflow to acompany it?
any hamper in the FE?
~cheers
I have heard that Mahesh at Sivaji park bombay does this job, can anyone throw light on the kind of work he has done. Also are there adverse effects on the Fe after doing this job
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Old 17th March 2006, 08:37   #21
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Quote:
Originally Posted by ajalphonso
I have heard that Mahesh at Sivaji park bombay does this job, can anyone throw light on the kind of work he has done. Also are there adverse effects on the Fe after doing this job

Hi,

Mahesh and myself are business associates and he does all my work. FE is directly related to how you drive and how heavy your foot is. Your FE will improve if driven normally.

Let me warn you though that a badly executed head job will not only hamper your performance but also your FE. PM me if you want any more info

Viper
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Old 22nd March 2006, 15:45   #22
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Headers.....

Are finishes like these tolerable in a header setup?



The pic below is just to show that it's a 3x1 header setup for a Matiz/800 engine!! Overall the pipes are bent pretty well!!



Pics courtesy:The Matiz Forum
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Old 22nd March 2006, 18:22   #23
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Edmund,

A word of advice, remeber that the exhaust posts need to be smooth and shiny - final grinding, in order for better flow. The intake final grinding should be a little rougher. The reason is - if the intake port is very smooth the fuel tends to stick to the walls resulting in lean mixtures and eventually a blown engine.

Also you need to have the proting and polishing done by an expert. If too much material is removed you will end up puncturing the water jacket - Big trouble.

Have fun.

Last edited by Sideways : 22nd March 2006 at 18:24.
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Old 22nd March 2006, 21:24   #24
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@ Sideways: Got that ! thanx mate!

So the collector of the headers has to be polished and streamlined also?

And it will be done by a professional, im just getting the know-how!!
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Old 22nd March 2006, 21:28   #25
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A very interesting read on exhaust systems!!!

Cobbtuning

Last edited by Rehaan : 22nd March 2006 at 23:28.
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Old 23rd March 2006, 21:08   #26
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This is another article which explains with pictures...
http://www.sa-motorsports.com/diyport.shtm
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Old 26th April 2006, 23:04   #27
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WIll one have to do Engine Decarb after a porting & polishing job? also will one have to get the Engine oil changed?
Has anyone who has done a porting or polishing comment on the change in FE?
I am very tempted to get this done on my Zen.
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Old 27th April 2006, 00:02   #28
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can some one please help me out with a good experienced tuner in delhi !! has any one been to performance auto in noida? is he reliable and experienced enough!!? also how much should it cost for a swift??
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Old 27th April 2006, 00:54   #29
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If porting and polishing is so good for the engine and increases the performance, why doesnt the manufacturer himself give us a ported and polished head??

What stops them from doing this? I guess this will some effect on the life of the engine, else why should the maker not port the head??
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Old 27th April 2006, 03:02   #30
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Quote:
Originally Posted by mail4ajo
If porting and polishing is so good for the engine and increases the performance, why doesnt the manufacturer himself give us a ported and polished head??

What stops them from doing this? I guess this will some effect on the life of the engine, else why should the maker not port the head??
No maker explores the limits of an engine simply coz it needs to restricted to meet emission norms. That’s the biggest concern!
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