Porting and Polishing!!! - Page 2 - Team-BHP

hot_rod · 4th March 2005, 20:53

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

maybach · 4th March 2005, 21:24

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.

anant_n1 · 6th March 2005, 18:06

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 !!

viper · 6th May 2005, 21:26

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

revtech · 6th May 2005, 21:34

hey viper
thats a very informative link.
thanx a lot dude.really helps to understand the broad concept and terminologies !!

Rev

Kaizer Sozay · 16th March 2006, 21:54

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

viper · 17th March 2006, 07:37

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

Edmund · 22nd March 2006, 14:45

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

Sideways · 22nd March 2006, 17:22

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.

Edmund · 22nd March 2006, 20:24

@ 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!!

Edmund · 22nd March 2006, 20:28

A very interesting read on exhaust systems!!!

Cobbtuning

bruce · 23rd March 2006, 20:08

This is another article which explains with pictures...
http://www.sa-motorsports.com/diyport.shtm

Kaizer Sozay · 26th April 2006, 23:04

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.

speed0mania · 27th April 2006, 00:02

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??

mail4ajo · 27th April 2006, 00:54

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??

4th March 2005, 20:53	#16 (permalink)
hot_rod BHPian Join Date: Mar 2005 Location: mumbai Posts: 154 View My Garage	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 Last edited by hot_rod : 4th March 2005 at 20:59. Reason: wrong year

6th May 2005, 21:26	#19 (permalink)
viper Senior - BHPian Join Date: Mar 2005 Location: Back in Mumbai Posts: 2,036 View My Garage	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 __________________ *NO ONE DARES COME CLOSE*

6th May 2005, 21:34	#20 (permalink)
revtech Senior - BHPian Join Date: Nov 2004 Location: Vero Beach, FL Posts: 1,652 View My Garage	hey viper thats a very informative link. thanx a lot dude.really helps to understand the broad concept and terminologies !! Rev __________________ Revin Beyond Limits !!

22nd March 2006, 14:45	#23 (permalink)
Edmund BHPian Join Date: Feb 2005 Location: Pune Posts: 535 View My Garage	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 __________________ Zeropointeight for me to keep and miles to go before I sleep............

22nd March 2006, 17:22	#24 (permalink)
Sideways Distinguished - BHPian Join Date: Nov 2004 Location: Madras - India Posts: 720 View My Garage	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. __________________ Action on the MMST race track, Chennai - 30th & 31st August Last edited by Sideways : 22nd March 2006 at 17:24.

6th March 2005, 18:06	#18 (permalink)
anant_n1 Newbie Join Date: Feb 2005 Location: Mumbai Posts: 22	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 !!

22nd March 2006, 20:24	#25 (permalink)
Edmund BHPian Join Date: Feb 2005 Location: Pune Posts: 535 View My Garage	@ 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!! __________________ Zeropointeight for me to keep and miles to go before I sleep............

22nd March 2006, 20:28	#26 (permalink)
Edmund BHPian Join Date: Feb 2005 Location: Pune Posts: 535 View My Garage	A very interesting read on exhaust systems!!! Cobbtuning __________________ Zeropointeight for me to keep and miles to go before I sleep............ Last edited by Rehaan : 22nd March 2006 at 22:28.

23rd March 2006, 20:08	#27 (permalink)
bruce BHPian Join Date: Aug 2005 Location: Bangalore Posts: 127 View My Garage	This is another article which explains with pictures... http://www.sa-motorsports.com/diyport.shtm __________________ Regards, Bruce _______________________________________ If at first you don't succeed, skydiving is not for you!

26th April 2006, 23:04	#28 (permalink)
Kaizer Sozay BHPian Join Date: Apr 2005 Location: Bombay to Delhi Posts: 342 View My Garage	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. __________________ "The greatest trick the devil ever pulled was convincing the world he didn't exist ."

27th April 2006, 00:02	#29 (permalink)
speed0mania BHPian Join Date: Jun 2005 Location: new delhi Posts: 263 View My Garage	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??

27th April 2006, 00:54	#30 (permalink)
mail4ajo Senior - BHPian Join Date: Mar 2006 Location: Back to Namma Chennai Posts: 1,108 View My Garage	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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