Captain_Stealth
Well-known member
tman said:
Exactly well put
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Read the WELCOME ALL BMWFANATICS post.
BMW i8 Race Car Build
- Thread starter Marco-Swanepoel
- Start date
Exactly well put
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Marco-Swanepoel
Active member
Nikhil said:
In a nut shell that's the build "[font=Tahoma, Verdana, Arial, sans-serif]taking a compact v6 putting it into a tube chassis and then dropping the i8 shell over it"
[/font]
Marco-Swanepoel
Active member
TurboLlew said:
We done an inspection it only have front suspension damage the tube is still perfect
The only 2000hp plus motor I'll go for is the VR38 so many videos and blog on these motors doing multiple runs without any problems build it for 2000hp and detune it to 1500hp something in that range
TurboLlew
Honorary ///Member
Your problem is going to be packaging and cooling - not power. You're going to need things like:
new extended subframe
the motor itself (V8TT or V10 both are shoehorned into very large engine bays and still suffer with cooling even in front)
body panels for the new shape of the car that you are going to need (Look at Henessy Venom as an example)
a transaxle that somehow works with this setup (Look at how the F355/F360 setups look), At the very least custom drive shafts
removing ALL the electric stuff,
Somehow getting all your stuff working inside considering what modern BMW electronics and coding is like (or running your R100K ECU).
Totally custom suspension front and rear
Totally custom cooling
Then you want to twin turbo it in the case of the V10?
Why don't you buy a Radical? or KTM X-Bow or McLaren or something like that?
What cars do you have that you feel like you need 1000hp in a very light car?
new extended subframe
the motor itself (V8TT or V10 both are shoehorned into very large engine bays and still suffer with cooling even in front)
body panels for the new shape of the car that you are going to need (Look at Henessy Venom as an example)
a transaxle that somehow works with this setup (Look at how the F355/F360 setups look), At the very least custom drive shafts
removing ALL the electric stuff,
Somehow getting all your stuff working inside considering what modern BMW electronics and coding is like (or running your R100K ECU).
Totally custom suspension front and rear
Totally custom cooling
Then you want to twin turbo it in the case of the V10?
Why don't you buy a Radical? or KTM X-Bow or McLaren or something like that?
What cars do you have that you feel like you need 1000hp in a very light car?
Marco-Swanepoel
Active member
tman said:
That's why I started this thread I'd like to know what kinda power can these V10s make reliable and the costs
It seems the S63tu motor might be the best option as guys are still developing upgrade for it as the V10 no-one is doing much for it anymore
Pure Turbo's stage 2 tuebo upgrades are hitting the 900hp mark
TurboLlew
Honorary ///Member
OK... here is an example from the 4C forum. They took a 4C and were supposed to 'drop' a Lambo motor in.
Literally the only thing they managed to use was the tub. Not even the front.
All custom engineering.
And this is a VERY simple car compared to an i8
View attachment 1
Literally the only thing they managed to use was the tub. Not even the front.
All custom engineering.
And this is a VERY simple car compared to an i8
View attachment 1
Kyle
///Member
I assume you got your inspiration from YouTube? Seems like a new trend amongst automotive YouTubers to buy accident damaged supercars and swap a crazy 1000HP engine in there, problem is... Very few of them *actually* work... However...
Anything is possible if you have the resources...
http://www.speedhunters.com/2020/05/this-is-what-they-mean-by-built-not-bought/
IMO the i8 is not a great base to start with in terms of being engine swap friendly, especially because of the complex electrical system. You would basically have to strip out everything and start from a bare shell if you actually want it to work and not just start and make noise at a car show like the crazy YouTube (B is for Build) cars.
Anything is possible if you have the resources...
http://www.speedhunters.com/2020/05/this-is-what-they-mean-by-built-not-bought/
IMO the i8 is not a great base to start with in terms of being engine swap friendly, especially because of the complex electrical system. You would basically have to strip out everything and start from a bare shell if you actually want it to work and not just start and make noise at a car show like the crazy YouTube (B is for Build) cars.
TurboLlew
Honorary ///Member
Marco-Swanepoel said:
https://www.bimmerboost.com/content...I-GTX3076R-Gen-II-and-GTX3582R-Gen-II-options
Marco-Swanepoel
Active member
TurboLlew said:
That's an great suggestion! Pure Turbo upgrades are also doing great work on the S63tu motor
Marco-Swanepoel
Active member
Kyle said:
Inspiration was actually from Quintin's AMG powered Lotus
I would definitely strip the whole i8, drop all the electronics and start with an bare shell. Lots of guys doing V6 twin Turbo swops with the lotus and MR2 it's really not that complicated.
My biggest debate is
Do I build an 1000hp BMW road car
Or I build an 2000hp Nissan race car
Marco-Swanepoel
Active member
I'd say +- R 1 million excl. The cost of the i8
Marco-Swanepoel
Active member
It's actually very simple you remove the rear subframes and build a new one around the motor you use same as all the Lotus guys do
You'd have to extend the rear to accommodate the new motor length but, it rather do this then cut into the carbon tub
View attachment 2
You'd have to extend the rear to accommodate the new motor length but, it rather do this then cut into the carbon tub
View attachment 2
TurboLlew
Honorary ///Member
So motor wise you're in for
Used S63TU - R200K (they are all advertised for more locally)
Build on the S63TU - R100-150K
Turbo upgrade - R200K (Weistec setup)
MOTEC - R90K
This is before you have fitted anything you're already past R600K
That is stuff you know the price of
Then there is:
Gearbox: a Hewland sequential box is around 25K GBP which is about R585K at current rates. It goes up from there...clutch, custom fabrication to get it to fit etc. No off the shelf gearbox from BMW is going to work (I don't think)... even then a DCT Box might be 100-150K and then you spend another 100K on clutch and basket upgrades and then another amount of money for a tunable controller of some kind. Even if you got one for half price, that is a chunk of change
The custom work on the aforementioned Subframes, drive shafts etc - that Alfa build is an example.
ALL the custom engineering work just getting it to fit - do you have someone who you would be able to get to take on work like this? Or can you perhaps do it yourself?
ALL the custom body work for the front and the back - I honestly wouldn't even know where to start in terms of getting this done in SA?
Suspension + wheels & tyres - gets VERY expensive for your kind of use case
Cooling?
Oil system?
Brakes (R40-50K front only is a starting point for things like AP Racing)
Tuning for engine and gearbox - no idea
Then the cost of the i8 itself - I dunno what that is, but even at R500K, I would be amazed if it still made sense. Then regarding balance, why do you feel this will be better than either the McLaren I posted or the Porsche GT3 RS (or hell GT2 RS if you have that desire for power) and spending time tuning it for your driving style and prepping for events.
I don't think using a V10 is going to be any different (if anything it would be more money). Using a 6 presents the same challenges especially getting it past 1000hp
I don't know what you could reclaim from sale of i8 parts.
Used S63TU - R200K (they are all advertised for more locally)
Build on the S63TU - R100-150K
Turbo upgrade - R200K (Weistec setup)
MOTEC - R90K
This is before you have fitted anything you're already past R600K
That is stuff you know the price of
Then there is:
Gearbox: a Hewland sequential box is around 25K GBP which is about R585K at current rates. It goes up from there...clutch, custom fabrication to get it to fit etc. No off the shelf gearbox from BMW is going to work (I don't think)... even then a DCT Box might be 100-150K and then you spend another 100K on clutch and basket upgrades and then another amount of money for a tunable controller of some kind. Even if you got one for half price, that is a chunk of change
The custom work on the aforementioned Subframes, drive shafts etc - that Alfa build is an example.
ALL the custom engineering work just getting it to fit - do you have someone who you would be able to get to take on work like this? Or can you perhaps do it yourself?
ALL the custom body work for the front and the back - I honestly wouldn't even know where to start in terms of getting this done in SA?
Suspension + wheels & tyres - gets VERY expensive for your kind of use case
Cooling?
Oil system?
Brakes (R40-50K front only is a starting point for things like AP Racing)
Tuning for engine and gearbox - no idea
Then the cost of the i8 itself - I dunno what that is, but even at R500K, I would be amazed if it still made sense. Then regarding balance, why do you feel this will be better than either the McLaren I posted or the Porsche GT3 RS (or hell GT2 RS if you have that desire for power) and spending time tuning it for your driving style and prepping for events.
I don't think using a V10 is going to be any different (if anything it would be more money). Using a 6 presents the same challenges especially getting it past 1000hp
I don't know what you could reclaim from sale of i8 parts.
Nikhil
Honorary ///Member
The amount of fabrication required is giving me anxiety lol, if you keen on going with this I would transplant an M50d engine into this thing, the 6 cylinder diesels are reliable as hell and with some software trickery, water meth and upgraded turbos 400wkw and over 1000nm of torque will shunt you through a hill climb very nicely and it will be super reliable
