Exhausts

Discussion and technical advice for 84-89 AW10 & AW11 MR2. 3A-LU, 4A-GE, 4A-GZE.

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elbon50
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Re: Exhausts

Post by elbon50 »

kaiowas wrote:By most standards the Janspeed isn't *that* loud. It's just louder than most other mk1 exhausts.

We used to have one on the sprint car, TSS runs a 102dB limit and although we never failed noise with it we were getting close by the time we replaced it


The sprints that I enter run the standard MSA limits Kaiowas. So 108dB top whack

I should be able to pass then with an N/A engine, judging by your experiences

Peter
Last edited by elbon50 on Mon Jun 27, 2011 5:43 pm, edited 1 time in total.
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Lauren
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Re: Exhausts

Post by Lauren »

Peter, if you want a brilliant exhaust system and don't mind an hours drive go to http://www.jpexhausts.co.uk in Macclesfield. They'll make a system to spec for you, to your design and however loud or quiet you want.

I've had Magnex systems and all that in the past, but JP will do a much higher quality system for you than the stuff you can buy off the shelf. Cost will be no more either (quite likely less). I wouldn't go anywhere else for exhausts or hard pipes.

If you book it in, reckon they'll do it in a few hours for you.
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elbon50
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Re: Exhausts

Post by elbon50 »

Ooooh that is interesting Lauren

Many thanks

Macclesfield is handy

Will look into that

Peter
brawr
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Re: Exhausts

Post by brawr »

Anyone else got a Scorpion exhaust?
I picked one up (well, rear section) a couple of years ago from a guy on retro rides for a great price. Looks the part (standard style but s/steel with slightly bigger tips) and makes a good noise. He had it on his S/C a few years before iirc.
Not seen anyone else with one though, have they been out of production for a while?
Charged
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Re: Exhausts

Post by Charged »

brawr wrote:Anyone else got a Scorpion exhaust?
I picked one up (well, rear section) a couple of years ago from a guy on retro rides for a great price. Looks the part (standard style but s/steel with slightly bigger tips) and makes a good noise. He had it on his S/C a few years before iirc.
Not seen anyone else with one though, have they been out of production for a while?


Many years ago I had one on and old breaker, looked a little cheap compared to the Mongoose/Magnex item
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SuperRedMR2
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Re: Exhausts

Post by SuperRedMR2 »

My mate fitted a scorpion exhaust to his sc conversion from an SC I bought as spares. Sounded pretty good. Louder than a magnex/mongoose, but quieter than a janspeed.
Boddney
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Re: Exhausts

Post by Boddney »

What do all these do for performance though? Do they all have the same BHP qualities or do they all differ?
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Re: Exhausts

Post by Jaspa »

Boddney wrote:What do all these do for performance though? Do they all have the same BHP qualities or do they all differ?


In the great scheme of things, any performance gain will not be noticable. It's all about the noise :thumleft:
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Lauren
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Re: Exhausts

Post by Lauren »

Nothing significant in terms of performance gains (or losses). It's things like manifolds which offer bigger gains tbh, but then they are expensive.
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Boddney
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Re: Exhausts

Post by Boddney »

Oh I see. Never really got into exhaust changes. Always been a standard kind of guy.
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Lauren
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Re: Exhausts

Post by Lauren »

Boddney wrote:Oh I see. Never really got into exhaust changes. Always been a standard kind of guy.


I guess the thing about is, is your stock system is falling apart (and one day it will) and you are planning on keeping the car it makes perfect sense to go for a stainless system with a lifetime warranty as you won't have to worry about it rusting away. :+:

A sportier exhaust is nice on the ears too.
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Boddney
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Re: Exhausts

Post by Boddney »

Ahh, fair enough. I do have a cheeky little spare exhaust in the loft though. :thumleft:
un1eash
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Re: Exhausts

Post by un1eash »

I would definitely say that my Janspeed has opened the top end a bit and along with the k&n gives the car a healthy 122bhp and a few more torques then it had when it left the factory.
des0808
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Re: Exhausts

Post by des0808 »

agree with last post :D
still love the sound of my janspeed :D
vashy
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Re: Exhausts

Post by vashy »

Kaiowas, is there any noticable difference in power between the Janspeed and the Mongoose?
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SuperRedMR2
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Re: Exhausts

Post by SuperRedMR2 »

Ive had a mongoose, powerflow and janspeed and the janspeed definitely feels different between all of them. It feels freer flowing.
un1eash
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Re: Exhausts

Post by un1eash »

The janspeeds advantage/disadvantage is that it has much longer down pipes before it joins into one.
kaiowas
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Re: Exhausts

Post by kaiowas »

vashy wrote:Kaiowas, is there any noticable difference in power between the Janspeed and the Mongoose?


Not that I can back up with hard facts but internet talk is generally of the opinion that the Janspeed is the best off the shelf exhaust you can fit to a mk1 power wise, even then you're only talking a few bhp at most.
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