exhaust opinions

MikeLMR · June 20, 2003, 08:54:23 PM

got an MOT test tommorow and I have a feeling this will be the last one for the current exhaust system (Rust In Peace downpipe

) I have been looking around on and off for the past year for a suitable exhaust and not had much luck ... therefor I am thinking about have a "one off" system made by a specialist company. Has anyone had this done and do they have any recomendations.

These are the options I have tried so far

WGT - Exhaust suplier lost jigs when I asked last year .. no reply to recent e-mails .. is Pip ever in ?
Hurley ? - wasn\'t too impressed by the manifold pics on their webssite
Rotechniks - fairly thin walled stainless and rough looking engine flange
Racing beat - Shipping and taxes = Â£Â£Â£\'s
janspeed - cheap and tinny according to many I have talked too
Genuine Mazda - Â£Â£Â£\'s and no HP gain
Aussie supliers - again taxes and shipping = Â£Â£Â£Â£\'s !

this is why I have started to look into the specialist exhaust manufacturers

tube torque - http://www.tubetorque.co.uk/ meant to be good, but a long way to travel

longlife exhausts - http://www.exhausts.uk.com/ - advertised in the club mag .. .anyone used them ?

wunoff http://www.wunoff.co.uk/ - meant to be very good (found them through a kit car magazine and practical classics)

Does anyone have any recomendations ? I don\'t mind travelling within reason.

Mike

MikeLMR · June 20, 2003, 08:55:24 PM

oh yes ... its for a 1st gen with a 12a N/A engine

Glenn Butcher · June 20, 2003, 11:02:31 PM

Hi Mike,

I haven\'t had an exhaust made up in this country - but plenty of experience with exhausts in Australia.

Main thing would be to get a stainless system, and for a little extra cost make sure the system is a genuine mandrel bend (not a pipe bend type).

If you do go this route, you will probably need 1-2 resonators in the system with a decent baffled rear muffler to keep the noise down.

Also - send Clive a PM, as I think he can actually get a hold of exhausts for your car.

Hope this helps mate!

rotorhead666 · June 21, 2003, 09:32:49 AM

Mike,you already know my opinion on my Powerflow exhaust,even if others have had negative opinions.build quality is superb,sound is AWESOME,and it only cost Â£370 for a full system.just offering my 2p worth!

MikeLMR · June 21, 2003, 10:50:01 AM

where did you get that sorted ?

passed its MOT no problems today (only visual emmissions check HAHAHAHA ) but I think it could do with sorting as there are no baffles left in the back box and its sounding a bit sick because of it

gave it a good clean and took some photos to celebrate it passing 1st time

Mike

Fish · June 21, 2003, 04:44:29 PM

Mike, and for those looking for exhausts to be made up.

Hayward and Scott in Basildon, Essex make stainless systems inc. custom one off\'s.

I will find the link to their website and post it up later.

Dan

PS. I used these many times on my scoob, and have nothing but respect for Ian and the boys there.

MikeLMR · June 24, 2003, 11:21:00 PM

Think I\'ve finally made my mind up ... I\'m hoping to have an exhaust made by Tube Torque to these specs.

2 x 2" primary pipes all the way to the diff

With a large straight through silencer on both (or a dual to save Â£Â£\'s) the a collector at the diff and into a 2.5" over axle pipe and into a large almost straight through rear silencer.

Hoping to base it on the following photos I\'ve found on my many travels searching out quiet yet free flowing exhaust designs over the past few days.

Manifold (notice no collector)

MikeLMR · June 24, 2003, 11:21:30 PM

Middle silencer

MikeLMR · June 24, 2003, 11:21:57 PM

Collector

MikeLMR · June 24, 2003, 11:24:11 PM

Any ideas then guys (could do with some Aussys to tell me where I\'m going wrong really

.. they seem to have it sussed)

Its should all be nice thick walled tubing (1.6mm or 16 gauge) and the silencers will be stainless wool packed too so it should last OK.

Mike

Glenn Butcher · June 25, 2003, 12:01:08 AM

Going to be loud!

Try and get them to put the exhaust up and over the diff - you may have problems with it bottoming out if it is under the diff.

Jonrms · June 25, 2003, 12:42:44 AM

it is going to be very loud.. but hey.. why not... we have a very powerful car and people should know were comming.
anyway i have the second gen and i am going to get mine made up .. one off.
i was hoping to find something cheap.. ie whole system but havnt yet.. all rediculous pricings.

Carl · June 25, 2003, 09:09:35 AM

Hi To you all,
I think that you will find the system to be too loud.
I have expeirience of racing exhaust on 12a naturally aspirated and they have more silencers than the sytem you are proposing and still the noise is around 100 to 104 DB.If you intend to go on trackdays and not want too much attention from the police on the road I think I can have a system made for you that will be a good compromise.
I am currently developing a system for the FD RX7 which will be up and running next week,after that I can look at yours if you like.
Kind regards
Carl
PS what is the cost of your proposed system?

MikeLMR · June 25, 2003, 10:37:20 AM

I\'m not sure yet ... Still awaiting a quote from Tube torque

Sounds like it\'ll be too loud for me then ... I wanted somthing below the track day limit 95Db\'s

I\'d definetly be Interested Carl ... the exhaust I have at the moment is better than I thought it was (not blowing) but the silencers are shot and its sounding sick.

What about the same style system with a baffled rear box ( I think I may of got my qires crossed as the Aussy\'s are using a brand name back box of unknown construction and getting low Db readings (rotaflow?)

Like you said I\'m looking for a compramise no Police attention seeking noise levels but a system that won\'t be too restrictive.

Mike

Carl · June 25, 2003, 01:55:37 PM

Hi Mike,
i think I have got a system that uses some of the ideas that you want to use with a special back box design that is straight through but not too noisy.
Regards
Carl

exhaust opinions

Jonrms