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Old 19th May 2006, 14:59   #211
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Quote:
Originally Posted by Edmund
What are the preventive measures then? Should i go in for SS or MS??
SS Headers are the best provided you have them TIG or MIG welded as they provide the best flow, in the absense of that you can use MS. As for heating up both the headers heat up equivalently depending on the wall thickness, but the SS headers will tend to radiate more heat.


Quote:
Originally Posted by Edmund
I agree with you khaadu, my previous FF setup [Now running stock exhaust setup!] was designed primarily for sound, even though i specificallly told him that i wanted performance!!! I stood around in the workshop and observed 40% of my setup being made, there was absolutely no calculations, just chop-bend-weld!!!! Since he was recommended and i had already given him the dough there was no turning back!! That setup is now history and i hope my new one is nothing but performance oriented.
Welcome to the world of header design , I do know most of the run of the mill header makers tend to design the headers to fit the area available rather than maintaining the right lengths.
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Old 19th May 2006, 15:05   #212
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@ Psycho: Thanks for the info, So if the SS headers radiate more heat does it affect anything???
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Old 19th May 2006, 16:46   #213
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Actually SS headers should not dissipate heat as SS is not a good conductor of heat.. but MS is a good conductor. Using MS headers, heat at the headers are dissipated to the surroundings inside the engine bay. but with a SS header, heat generated propogates along the tube this also aids exhaust gasses propogation along the tube there by maintaining exhaust gas velocity.. On the contrary this may heat up the entire length of the exhaust track. with headers welded properly with TIG process should give better performance than a same spec header fabricated with MS.
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Old 19th May 2006, 16:50   #214
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while researching the web on headers, i came across this bful website dedicated to header design.. It even has header calculation embedded.
You can calculate your header dimensions with this tool:
http://headerdesign.com/index.asp
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Old 19th May 2006, 17:55   #215
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Quote:
Originally Posted by shazikon
while researching the web on headers, i came across this bful website dedicated to header design.. It even has header calculation embedded.
You can calculate your header dimensions with this tool:
http://headerdesign.com/index.asp
Good one for basics... try changing parameters you will only notice the pipe dia's changing not much changes on the lengths
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Old 1st July 2006, 13:46   #216
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Question Free Flow Exhaust Maintenance

Hi TBHPian's

Almost 6 - 8 months back i have installed a Free Flow Exhaust from Automech (Mumbai). But since few days i m getting a feeling that the air which passes thru the exhaust is taking pressure 2 come out (not like free flow). Sometimes i feel the pressure tht the air puts 2 come out.

Is it somethiing which i m just thinking and feeling or there is some problem.

Also let me if there is some kind of maintenance to be done on the Free Flow Exhaust 2 make it run smothly.

Thanx
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Old 4th July 2006, 12:16   #217
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It feels like the air flow is getting choked somewhere???
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Old 4th July 2006, 14:29   #218
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Quote:
Originally Posted by rareone
It feels like the air flow is getting choked somewhere???
There was a thread by another TBHPian who drives an Esteem ( run some 500odd kms) with freeflwo and rest of teh works. he too faced simialr problems and was rectified by a faulty muffler.
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Old 4th July 2006, 20:11   #219
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Default OD tests Automech

Cant remember which month the long term review appeared, but OD has a green Swift on a long term test and installed an Automech exhuast on it.

They claim 0-100 has improved to ~11.3 secs. When you flip to the performance index on the last page, it shows stock Swift as 12.9 secs......that a real good improvement if you ask me.

But they dont mention if its cat back or header to tailpipe system.
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Old 5th July 2006, 12:22   #220
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Quote:
Originally Posted by jkdas
There was a thread by another TBHPian who drives an Esteem ( run some 500odd kms) with freeflwo and rest of teh works. he too faced simialr problems and was rectified by a faulty muffler.

So JKdas shall i go 2 automech once and get the muffler and free flow checked once.
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Old 6th July 2006, 15:32   #221
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@rareone; update please.

can I get just a header for my Xing + OE exhaust?
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Old 7th July 2006, 18:40   #222
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Quote:
Originally Posted by jkdas
@rareone; update please.

can I get just a header for my Xing + OE exhaust?
I think u can..

Have read somewhere on this site abt header with OE exhaust
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Old 7th July 2006, 18:47   #223
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Quote:
Originally Posted by rareone
I think u can..

Have read somewhere on this site abt header with OE exhaust
Hi,

You can use a Header with OE rear muffler but, you will not experience the full gains one finds from a complete Free Flow system.

Viper
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Old 11th July 2006, 22:41   #224
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Question

guys for the time being im not getting the mods done on my OHC i'll start the work within 2-3 months....

i wanned my ride with a nice deep sound

my question to guys is that is that possible by just changing the Muffler or do i have to install the complete free flow exhaust...

help me out guys....
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Old 12th July 2006, 08:31   #225
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Hi,

If its only sound you are looking at then the answer is yes only a muffler change will do.

Viper
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