Mazda RX8 project with 20v Audi turbo engine
#41
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So you were correcting everyone who said that RX8 engines were crap, by talking about the engine in a totally different mazda car?
Strange, but at least now we have some clue what you were on about![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
Cool project Martin, when I saw the photos I assumed the engine was sat that far back just to be really hardcore about weight distribution so it was interesting reading why it has to be like that etc
Strange, but at least now we have some clue what you were on about
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
Cool project Martin, when I saw the photos I assumed the engine was sat that far back just to be really hardcore about weight distribution so it was interesting reading why it has to be like that etc
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#42
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The only difference I was aware of between any mazda rotary was the porting between FC's and FD's.
My point still stands, they arnt as bad as people make them out to be.
Martin, What ecu will you be using ?
#43
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Maybe two!!
I may have to retain the RX8 ecu and make it think its still controlling the engine, I'm not sure yet what will work if I simply bin off the original ecu. I'd like to use a VAG ecu for the engine if I can get it to work, I'm not sure about overcomming security and then if I get get software to map it.
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#45
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Maybe two!!
I may have to retain the RX8 ecu and make it think its still controlling the engine, I'm not sure yet what will work if I simply bin off the original ecu. I'd like to use a VAG ecu for the engine if I can get it to work, I'm not sure about overcomming security and then if I get get software to map it.
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
Thats the biggest issue with trying to retain the original ecu I would think.
Where is SECS when you need him to create a box to swap 36-1 to 60-2 or whatever?
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Last edited by Chip; 08-12-2011 at 04:43 PM.
#46
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Thinking transplant into something else, but for now it will sit there gutted in the corner of the garage till I work out a project direction!
I've been sent a very handy PM regarding an alternative RWD box conversion that would then sit nicely in the RX8 bay (with some chopping
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#47
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Maybe two!!
I may have to retain the RX8 ecu and make it think its still controlling the engine, I'm not sure yet what will work if I simply bin off the original ecu. I'd like to use a VAG ecu for the engine if I can get it to work, I'm not sure about overcomming security and then if I get get software to map it.
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
drop Matt @ http://www.unitedmotorsport.co.uk a line
http://unitedmotorsport.co.uk/products/software/
Last edited by GVK.; 08-12-2011 at 06:15 PM.
#48
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If you need someone to defeat immobiliser on VAG ECU
drop Matt @ http://www.unitedmotorsport.co.uk a line
http://unitedmotorsport.co.uk/products/software/
drop Matt @ http://www.unitedmotorsport.co.uk a line
http://unitedmotorsport.co.uk/products/software/
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#49
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So..
how much do audi engines go for??
and how much do you reckon this conversion will cost, Martin?
just thinking.. 900 quid car.. few hundred quid on the engine from a breakers ETC + even if your conversion cost 4k.*
you could have a pretty fast, modern and reliable car for less than the cost of an average saph cos![Grin](https://passionford.com/forum/images/smilies/icon_smile.gif)
*obviously you could want a lot more than that though
lol
how much do audi engines go for??
and how much do you reckon this conversion will cost, Martin?
just thinking.. 900 quid car.. few hundred quid on the engine from a breakers ETC + even if your conversion cost 4k.*
you could have a pretty fast, modern and reliable car for less than the cost of an average saph cos
![Grin](https://passionford.com/forum/images/smilies/icon_smile.gif)
*obviously you could want a lot more than that though
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
Last edited by pee vee; 09-12-2011 at 07:54 AM.
#50
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So..
how much do audi engines go for??
and how much do you reckon this conversion will cost, Martin?
just thinking.. 900 quid car.. few hundred quid on the engine from a breakers ETC + even if your conversion cost 4k.*
you could have a pretty fast, modern and reliable car for less than the cost of an average saph cos![Grin](https://passionford.com/forum/images/smilies/icon_smile.gif)
*obviously you could want a lot more than that though
lol
how much do audi engines go for??
and how much do you reckon this conversion will cost, Martin?
just thinking.. 900 quid car.. few hundred quid on the engine from a breakers ETC + even if your conversion cost 4k.*
you could have a pretty fast, modern and reliable car for less than the cost of an average saph cos
![Grin](https://passionford.com/forum/images/smilies/icon_smile.gif)
*obviously you could want a lot more than that though
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
Last edited by Martin-Hadland; 09-12-2011 at 08:10 AM.
#52
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Funny, we were only chatting in the pub Wednesday night about how cheap dead RX8's were and what engine would fit in them for resale, and my brother even said about the height issue of the engine. Not that I have any intention of building one, but interesting to watch someone else have a go. Keep it up!
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was speaking about this to my mate colum who has a track prepped rx7, running circa 650hp i believe, and he runs a standard spec 6 speed rx8 box, and it copes with the power with ease, never let him down once.
the 5 speed is an mx5 unit i think he says, so basically that 1 wont be so great lol
hes really knowledgeable on all things mazda, and has done conversions to run rx7 lumps in rx8s, retaining the rx8 ecu and piggybacking it with standalone etc. plus he is involved with a lot of the big power drag rx7s in the country. hes birmingham based aswell martin, may be a good contact for any info or bits your after?
the 5 speed is an mx5 unit i think he says, so basically that 1 wont be so great lol
hes really knowledgeable on all things mazda, and has done conversions to run rx7 lumps in rx8s, retaining the rx8 ecu and piggybacking it with standalone etc. plus he is involved with a lot of the big power drag rx7s in the country. hes birmingham based aswell martin, may be a good contact for any info or bits your after?
#57
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Not an easy fit by any means as the rack would get in the way.
Could you pm me his contact info??
was speaking about this to my mate colum who has a track prepped rx7, running circa 650hp i believe, and he runs a standard spec 6 speed rx8 box, and it copes with the power with ease, never let him down once.
the 5 speed is an mx5 unit i think he says, so basically that 1 wont be so great lol
hes really knowledgeable on all things mazda, and has done conversions to run rx7 lumps in rx8s, retaining the rx8 ecu and piggybacking it with standalone etc. plus he is involved with a lot of the big power drag rx7s in the country. hes birmingham based aswell martin, may be a good contact for any info or bits your after?
the 5 speed is an mx5 unit i think he says, so basically that 1 wont be so great lol
hes really knowledgeable on all things mazda, and has done conversions to run rx7 lumps in rx8s, retaining the rx8 ecu and piggybacking it with standalone etc. plus he is involved with a lot of the big power drag rx7s in the country. hes birmingham based aswell martin, may be a good contact for any info or bits your after?
Last edited by Martin-Hadland; 09-12-2011 at 01:47 PM.
#64
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great project i have wanted to do a duratec on TB conversion on one of these for ages would make a great car and is really what they should have built in the first place.
but adding the audi engine your taking it to a new level how good is the RX8 diff ?
but adding the audi engine your taking it to a new level how good is the RX8 diff ?
#66
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Maybe two!!
I may have to retain the RX8 ecu and make it think its still controlling the engine, I'm not sure yet what will work if I simply bin off the original ecu. I'd like to use a VAG ecu for the engine if I can get it to work, I'm not sure about overcomming security and then if I get get software to map it.
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
Vipec are developing a plug and play ecu for the VAG engine so no problem there
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Mark
#68
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Not sure on cost yet and it does have DBW as it is desgined to go in to a stock car and run it with no issuses and control everything.
Its about 3months away from being ready,
The base ECU is already running in a SC Mini and controls everything.
Mark
#72
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Cant you put the Mazda crank trigger on the front pully of the Vag to run the stock ecu, This is all that is needed on most piggy back systems to keep the car happy.
Mark
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"Yes, I know my Ł20k+ Mazda RX8 has fucking rubbish, unreliable, abortion of an engine and it makes TVRs and Ladas look reliable, but it's a great design concept."
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
"Yes, I know the Space Shuttle, Large Hadron Collider, the microchip and splitting the atom are half smart, but as a 'design concept' the Wankel engine (especially the ultra shit one Mazda put in the Rx8) is hard to beat".
![Surprised](https://passionford.com/forum/images/smilies/bigcry.gif)
And how can a fundamentally floored engine be unreliable through no fault of its own?!
Seems to me you're trying to defend the one of the worst 'design concepts' by any major vehicle manufacturer, ever!
I'll get back in my cave now.
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#78
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I love it mart . When i told you i was going to do a focos you yes but its been done befor which your right . And this is wot make me love your builds as its NOT been done befor . I will have to come round asap and have a look and bring some xmas beer
Last edited by COLEYST200; 09-12-2011 at 10:31 PM.