NA6 Turbo Adelaide Update

Discussion regarding Turbocharged and supercharged MX-5s

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bark
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Postby bark » Sat Apr 19, 2008 1:36 pm

It's a hyrbid essentially... I bought the greddy td05-16g kit from spike in WA. This kit came with the td05 turbo, SUS manifold, external blow off valve and some 330cc injectors.

I bought a 2nd hand B6 engine and rebuilt it. Whilst rebuilding I put in ARP head studs, B6T rods and pistons (lower compression 7.8:1). Everything else is pretty much standard (engine wise).

So I guess it started as a \"base kit\" but has then evolved. I had to get a dump pipe made up as well as a return BOV pipe and an air intake pipe. The AFM has been removed. It has an intercooler and I had to get piping made up for this too.

I'm getting the feeling you're embarking on a turbo project also?

tick4d

Postby tick4d » Mon Apr 21, 2008 3:21 pm

yes I have been thinking about it for some time - and as I am in Adelaide I am following your progress with DOT at Regency Park with interest. I never got one jot of useful info out of them. That was a turn off in itself.

I was thinking of a straight forward AVO kit or buying an SP / SE and be done with it. I notice that you mentioned that buying a factory turbo might have been a fairly reasonable way to go.

Keep us all posted. :)

bark
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Postby bark » Mon Apr 21, 2008 6:28 pm

tick4d, you can buy an SP/SE that is already turbo and then you can modify to your hearts content without the need for emissions testing. At the end of the day, the dollars spent may end up being equal... Probably the way to go in my opinion! :)

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Sean
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Re:

Postby Sean » Thu Apr 24, 2008 2:03 am

bark wrote:tick4d, you can buy an SP/SE that is already turbo and then you can modify to your hearts content without the need for emissions testing. At the end of the day, the dollars spent may end up being equal... Probably the way to go in my opinion! :)


Not so sure on that. Any roadgoing vehicle can be sent to pass the IM240 test, even a brand new falcodore (if your local authorities dont like you).

Changing ANY part of the car that effects emissions potentially voids it's ADR compliance, meaning you really need to get it certified. I know here in NSW engineers have recently been advised they are not to certify front mount intercoolers without the relevant (IM240) emissions testing. All states need to comply to ADR 37-00 (from memory) for emissions, regardless of the certification protocol.
When results speak for themselves - don't interrupt.

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Lucky_Luke
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Re:

Postby Lucky_Luke » Thu Apr 24, 2008 9:16 am

bark wrote:tick4d, you can buy an SP/SE that is already turbo and then you can modify to your hearts content without the need for emissions testing. At the end of the day, the dollars spent may end up being equal... Probably the way to go in my opinion! :)


x2

This is what i was quite seriously considering also.. it really is the only easy way to keep the boys in blue off your back, mind you i know someone in particular in adelaide who's had their AVO kit in since they first brought it out ( like 12 yrs) or something and never had any issues or major runs...

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SuperMazdaKart
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Postby SuperMazdaKart » Thu Apr 24, 2008 11:29 am

that'd be the better way to go in my opinion. too bad i can't stretch my finances too afford one of the SE/SPs & i certainly couldn't keep my current NA6 alongside it as well.

but my other alternative is getting a second older car, the one i almost got instead of the MX-5 which is the Familia GTR (or even GTX). does the stuff the MX-5 can't do & is practical enough (though I wish they made them in a 5 door version). paying two insurances & rego though.. might end up costing me more in the long run.
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bark
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Postby bark » Thu Apr 24, 2008 8:20 pm

Sean I agree with your comments, any modification which could impact on the gas mix in the combustion of an engine should theoritically have to be retuned to meet emission standards which would cover things such as an intercooler as you mentioned, an exhaust, an air filter etc... Although the likelihood of being requested to visit an IM240 test is much less on a factory turbo than something modded.

I visited the tuner again today, the tune is coming along. You can now give the engine some rev's without it coughing and spluttering, sounds really neat - like a normal engine! Next week the car may run a like IM240 test to flush the final details out.

bark
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Postby bark » Sun Jun 08, 2008 5:23 pm

Update. I picked my car up on Friday afternoon and I will be taking it for the emissions test this Tuesday at Regency Park. Stephen ran the car through his emissions test and all passed (I have pic's of the output showing actual vs target) on all 5 gases that make up combustion, so theoritically it should pass the IM240. I just need to change the oil and filter and cross my fingers!

I'll post again Tuesday night with either good or bad news.

tick4d

Re:

Postby tick4d » Fri Jun 20, 2008 10:13 am

I'll post again Tuesday night with either good or bad news.[/quote]

I hope your silence doesn't equate to bad news ? :(

bark
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Postby bark » Sun Jun 22, 2008 10:41 pm

Hello! My silence is a mix of bad and good news!

The bad news is that I took the car to regency and it failed the test, I have some intermittent issue that I am trying to put my finger on. Under load at about 3,000 rpm it has this voilent miss. I am in the process of re-checking vacuum lines, wiring, plumbing and anything else that comes to mind... This is quite an annoying miss to find. Stephen has tried to advance/retard timing, add more/less fuel etc but this miss is still there. I think it is a process of elimination to find what this fault is.

Good news is that I have a new role, but it requires a relocation to Wollongong in NSW - hence why I have been a bit quiet on here as my spare time is being consumed rapidly.

My car will not be coming over to NSW until it has passed regency and all is good. So I'll be working away in the background trying to find out what is wrong. If anyone has any suggestions as to what it could be then please share!

Ben

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Sean
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Postby Sean » Sun Jun 22, 2008 10:48 pm

bark wrote:Good news is that I have a new role, but it requires a relocation to Wollongong in NSW - hence why I have been a bit quiet on here as my spare time is being consumed rapidly.

My car will not be coming over to NSW until it has passed regency and all is good. So I'll be working away in the background trying to find out what is wrong. If anyone has any suggestions as to what it could be then please share!

Ben


Wouldn't you need to register it in NSW? If so, why not get it engineered in NSW too?

It's not something basic like plug gap is it?
When results speak for themselves - don't interrupt.

bark
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Postby bark » Sun Jun 22, 2008 11:06 pm

Hi Sean,

Yes I will need to get it registered in NSW also, but I'm thinking I might as well get it all done in Adelaide seeing as the tuner is here. Otherwise I'd need to find another tuner in NSW and see if anyone knows the MS...

I haven't checked the spark plug gap as Stephen says he has checked this. However it would probably pay for me to check them. Do you know what gap I should be aiming for for FI? I'm possibly thinking maybe it is the boost over-ride protection that comes with MSPNP, but I'll check this tomorrow night.

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Sean
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Postby Sean » Sun Jun 22, 2008 11:17 pm

bark wrote:Hi Sean,

Yes I will need to get it registered in NSW also, but I'm thinking I might as well get it all done in Adelaide seeing as the tuner is here. Otherwise I'd need to find another tuner in NSW and see if anyone knows the MS...

I haven't checked the spark plug gap as Stephen says he has checked this. However it would probably pay for me to check them. Do you know what gap I should be aiming for for FI? I'm possibly thinking maybe it is the boost over-ride protection that comes with MSPNP, but I'll check this tomorrow night.


Depends on teh temp range of the plugs. I was running 8s and 9s in my turbo MX5.

Stock gap of 1.1mm worked fine on 7-8psi, gapped down to 0.9mm when we were running over 15psi. I only mentioned gaps becuase I was getting ignition break-down at about 3500rpm when we had the gap too big, particularly with the 9s in.

From memory the plugs were B9EGV and B8s.
When results speak for themselves - don't interrupt.

bark
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Vehicle: NA6 - Turbo
Location: Adelaide

Postby bark » Sun Jun 22, 2008 11:28 pm

Mmm sounds familiar re ignition break-down and around the same sort of rev's too. It starts to feel like you're going somewhere but then it cuts out and then will re-ignite and go again...

I'll definately check that out tomorrow night - thanks!

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Sean
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Postby Sean » Sun Jun 22, 2008 11:42 pm

No worries - I'd love it to be something so simple!
When results speak for themselves - don't interrupt.


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