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marcosgt

7,449 posts

59 months

[news] 
Saturday 8th January 2011 quote quote all
fridaypassion said:
I had a mazda RX8, the engine is completely crap and I was always wondering what else you could drop in when it inevitably blows.

I would have a good look round for a 4 pot turbo engine that looks short enough to fit. Renaults Megane R26 engine would be ideally suited to the RX8. Something like that is really what the RX8 should have been made with. The very slight weight penalty will be more than worth it.
Just buy a BBR Turbo MX5 if that's what you want...

I wonder if a Porsche flat 6 would fit?

M

jbi

7,514 posts

87 months

[news] 
Saturday 8th January 2011 quote quote all
Yank V8

marcosgt

7,449 posts

59 months

[news] 
Saturday 8th January 2011 quote quote all
jbi said:
Yank V8
I've never seen a V8 in an RX8 other than that one in Iceland referred to earlier (and I noticed he never responded to any requests for information). The RX7 is often modded in that way and an RX8 might be fairly easy too, but there's seemingly little experience of actually doing it, even in the States.

Maybe I've just missed all the V8 RX8s, but I suspect there's something more to it.

M.

jbi

7,514 posts

87 months

[news] 
Saturday 8th January 2011 quote quote all
here you go



biggrin

redgriff500

9,253 posts

146 months

[news] 
Saturday 8th January 2011 quote quote all
A guy in Birmingham has converted at least one RX8 to an LS1 and several RX7 FD's.

His name is Craig Taylor but I can't remember his company name.

IIRC he charges circa 10k though and you can buy an LS1 Monaro for less than that.
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gsd2000

11,042 posts

66 months

[news] 
Saturday 8th January 2011 quote quote all
redgriff500 said:
A guy in Birmingham has converted at least one RX8 to an LS1 and several RX7 FD's.

His name is Craig Taylor but I can't remember his company name.

IIRC he charges circa 10k though and you can buy an LS1 Monaro for less than that.
Craigs company is "Dyno Torque"

He charges 5k plus the cost of engine and box

bigfatnick

808 posts

85 months

[news] 
Sunday 9th January 2011 quote quote all
I know there has been a few SR20det swaps into the rx8, seems to make sense to me, i know its all about low polar inertia, low centre of gravity and so on, but a 3/4cyl turbo/v6 in the rx8 (mx8?) would, i'm sure have seen it a massive success, i guess it wouldn't have these crazy low used prices though.

As far as i know (and this goes for the new mx5 as well) its almost impossible to get the dials etc to work with the new engine, so you really cant be expecting an OEM style driving experience with an engine swap. Though i guess it'd be an awesome excuse for a posh stack dash!

Pints

15,924 posts

77 months

[news] 
Sunday 9th January 2011 quote quote all
This is the kind of thing I was on about in the Mazda RX8 ...any good? thread. I'm liking the idea of a Subaru flat-4.

Why, oh why didn't Mazda fit this with a proper engine. It could have been so much more than the half-life it is today.

Harji

938 posts

44 months

[news] 
Sunday 9th January 2011 quote quote all
The whole point of the RX8 is the handling, the front is so light as the engine is tiny and put in far back in the engine bay for wight ditribution. I've got no doubt that all the handling characteistics of the car will go as soon as you put a piston engine in. Shame.

fridaypassion

2,650 posts

111 months

[news] 
Sunday 9th January 2011 quote quote all
I disagree. I dont think a 1300 kg car will be all that sensitive to an additional 20/30 kgs in the nose. Nothing that some mild suspension adjustments wont sort. Its Mazdas refusal to let the rotary die thats the reason they used it in the rx8. The technology for a light pressure turbo setup with the same power output was there but they chose not to do it.

The rex is sublime in every other way so fitting a proper engine in it would be very worthwhile. Why not buy an mx5 turbo? Well the whole point of the rx8 is that you get rear seats and a reasonable boot so practicality is unrivaled in a 4 door with the level of handling that the rx8 has.

Welshbeef

17,064 posts

81 months

[news] 
Sunday 9th January 2011 quote quote all
Liking that v8 with two huge turbos...

Op what sort of bhp/tonne are you after and what's your budget? I don't think your going to make any money on this in fact it will cost a lot to do and also the end result will be appealing to such a tiny number of individuals it may be highly difficult to sell and nowhere what it owes you.

Anyway hope you do it I'd opt for V8 POWER and might want a supercharger why not

marcosgt

7,449 posts

59 months

[news] 
Sunday 9th January 2011 quote quote all
jbi said:
here you go



biggrin
Where did you find that? Looks amazing, although it seems to have an open water pipe - are there shots somewhere of it finished?.

M.

Mazdarese

18,801 posts

70 months

[news] 
Sunday 9th January 2011 quote quote all
Has anyone put the 2.3t from the 3/6 MPS in an RX8? At least they're from the same company, so might work a little easier.

Easy 300bhp too.

marcosgt

7,449 posts

59 months

[news] 
Sunday 9th January 2011 quote quote all
Mazdarese said:
Has anyone put the 2.3t from the 3/6 MPS in an RX8? At least they're from the same company, so might work a little easier.

Easy 300bhp too.
Is it the same block as the MX5? putting a FWD engine in a RWD car is often not that easy...

To be honest, until this thread I'd never heard of anyone successfully putting any other engine into an 8. I guess, unlike the 7, they may still be too new (and expensive - despite their relatively low price) to act as the base for a project car.

M.

Mr2Mike

11,927 posts

138 months

[news] 
Sunday 9th January 2011 quote quote all
marcosgt said:
fridaypassion said:
I had a mazda RX8, the engine is completely crap and I was always wondering what else you could drop in when it inevitably blows.

I would have a good look round for a 4 pot turbo engine that looks short enough to fit. Renaults Megane R26 engine would be ideally suited to the RX8. Something like that is really what the RX8 should have been made with. The very slight weight penalty will be more than worth it.
Just buy a BBR Turbo MX5 if that's what you want...
Did BBR make a 4 seater coupe version of the MX5 then?

jbi

7,514 posts

87 months

[news] 
Sunday 9th January 2011 quote quote all
marcosgt said:
jbi said:
here you go



biggrin
Where did you find that? Looks amazing, although it seems to have an open water pipe - are there shots somewhere of it finished?.

M.
Was a pic floating around the internet... here's another example

http://www.rx8club.com/showthread.php?t=200609

plenty of pics and vids in that thread

Pints

15,924 posts

77 months

[news] 
Sunday 9th January 2011 quote quote all
marcosgt said:
jbi said:
here you go



biggrin
Where did you find that? Looks amazing, although it seems to have an open water pipe - are there shots somewhere of it finished?.

M.
Bit nose-heavy though, don't you think. scratchchin Do you think it knows how to cope with corners?

wink

jbi

7,514 posts

87 months

[news] 
Sunday 9th January 2011 quote quote all
LSX engines are very lightweight and compact... one of the reasons they are such popular conversions

Mazdarese

18,801 posts

70 months

[news] 
Sunday 9th January 2011 quote quote all
marcosgt said:
Mazdarese said:
Has anyone put the 2.3t from the 3/6 MPS in an RX8? At least they're from the same company, so might work a little easier.

Easy 300bhp too.
Is it the same block as the MX5? putting a FWD engine in a RWD car is often not that easy...

To be honest, until this thread I'd never heard of anyone successfully putting any other engine into an 8. I guess, unlike the 7, they may still be too new (and expensive - despite their relatively low price) to act as the base for a project car.

M.
I believe it's the same block as the MX5, yes. It's AWD in the 6 MPS so just get a written off 6 MPS and take the engine and running gear! biggrin

Mr2Mike

11,927 posts

138 months

[news] 
Sunday 9th January 2011 quote quote all
A V6 might be a decent compromise here, nice short engine and enough cylinders to be interesting. Jag S-Type perhaps since it's a complete RWD package and the 3.0 kicks out 240bhp.
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