Exhaust problems

Discussion regarding Turbocharged and supercharged MX-5s

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johnnyreble
Fast Driver
Posts: 140
Joined: Sun Apr 29, 2012 10:16 am
Vehicle: NA6 - Supercharged
Location: Perth WA

Exhaust problems

Postby johnnyreble » Fri Feb 14, 2014 11:55 am

Spent last week or so Dyno tuning my supercharged NA, max we could get was 140rwhp which we knew was off the mark, we decided that there was a restriction somewhere so took off the cat back system and immediately got an extra 40 hp, so am now getting a muffler made for it so I can track it this weekend and will retune it next week

moral of the story ... don't buy cheap catback off ebay .. mine had only done 10,000 ks and was all blocked up. we haven't pulled it apart yet to see what's going on with it .. anyone else had this problem ?
Supercharged NA6
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Okibi
Speed Racer
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Joined: Thu Aug 21, 2003 11:00 am
Vehicle: NB SE
Location: Perth, Western Australia
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Re: Exhaust problems

Postby Okibi » Fri Feb 14, 2014 11:25 pm

Massive difference! Glad you've found those lost killerwasps. What headers are you running?
If you had access to a car like this, would you take it back right away? Neither would I.
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DanZig
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Posts: 187
Joined: Wed Nov 23, 2011 12:33 pm
Vehicle: NA6
Location: Adelaide

Re: Exhaust problems

Postby DanZig » Sat Feb 15, 2014 12:26 am

I'm running a stock exhaust on my turbo and it's pretty slow haha. Just a temp measure to get the car driving until I finish making my new one so I'll reply when I change.
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johnnyreble
Fast Driver
Posts: 140
Joined: Sun Apr 29, 2012 10:16 am
Vehicle: NA6 - Supercharged
Location: Perth WA

Re: Exhaust problems

Postby johnnyreble » Sat Feb 15, 2014 10:28 am

running cheap ebay headers ... I'm a slow learner .. but she's noisy now, just gotta get it retuned

:)

Johnny
Supercharged NA6
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WASP
Fast Driver
Posts: 209
Joined: Fri Aug 14, 2009 9:24 am
Vehicle: NB SE
Location: Burleigh

Re: Exhaust problems

Postby WASP » Sat Feb 15, 2014 11:34 am

Hi What Supercharger are you using
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johnnyreble
Fast Driver
Posts: 140
Joined: Sun Apr 29, 2012 10:16 am
Vehicle: NA6 - Supercharged
Location: Perth WA

Re: Exhaust problems

Postby johnnyreble » Sat Feb 15, 2014 2:25 pm

I bought the FFS kit with a MP62 supercharger
Supercharged NA6
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DanZig
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Posts: 187
Joined: Wed Nov 23, 2011 12:33 pm
Vehicle: NA6
Location: Adelaide

Re: Exhaust problems

Postby DanZig » Mon Mar 03, 2014 8:22 pm

Just to chime in as I've done my exhaust. It made an absolutely massive difference on my turbo over stock. Night and day.
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