New R4 Car - Think Tank

**Mirek** · 14th November 2018, 15:05

Originally Posted by KKS

but all this proto's it's EvoX so what a difference of EvoX with Fiesta bodyshell and EvoX with Evo bodyshell?

Evo is much bigger compared to those proto cars, it's heavy and it has very short suspension travel. All of that plays huge difference.

What gearbox do the proto cars have? H-pattern dogbox or sequential?

**racerx1979** · 14th November 2018, 17:05

Originally Posted by Mirek

Evo is much bigger compared to those proto cars, it's heavy and it has very short suspension travel. All of that plays huge difference.

What gearbox do the proto cars have? H-pattern dogbox or sequential?

You can run a factory box, dogbox or a sequential. That's what's so great about it. Can spec one for 40k or go all out and have one at 80-100k with all the good stuff.

**racerx1979** · 14th November 2018, 18:02

Here's a good look at the Evolve Skoda running Subie gear. Looks damn good too!

http://www.evolve-motorsport.com/fabia/

**PLuto** · 14th November 2018, 18:16

Originally Posted by racerx1979

Here's a good look at the Evolve Skoda running Subie gear. Looks damn good too!

http://www.evolve-motorsport.com/fabia/

But problem with this project is that manufacturers are not interested in it. And Skoda was one of the teams which were fighting against R4 as they dont want that some private build cars will start under their brand...

**Tarmop** · 14th November 2018, 19:18

Originally Posted by racerx1979

Basically an old R4 EVO or WRX on steriods. Updated shock towers and chassis strengthening aids in a better overall car if built right. STEC, Evolve and Dytko all make great protos.

Similar to today's R4 concept with the power plant being an EVO motor. Some even have options for. Subie motor.

And some are a mixture of Gr. A and WRC, some are fully based on Audis etc. Really different cars in the same class.

https://i.redd.it/7qaa31621nrz.jpg
Only Audi parts used.

**br21** · 14th November 2018, 19:45

evolve car has totally nothing in common with r4, this was just computer graphic. it never existed and probably never will, so their estimation of building/running costs is just guessing.
their proto car with fabia body and subaru parts was also not succesfull, didn't drive much and had a lot of issues. now seems project dead.
other proto cars, based on evo drivetrain and mechanicals are more or less similar constructions, some decent, some nothing special.

**Mirek** · 14th November 2018, 20:23

Originally Posted by PLuto

But problem with this project is that manufacturers are not interested in it. And Skoda was one of the teams which were fighting against R4 as they dont want that some private build cars will start under their brand...

This is actually a very valid point which we somehow failed to mention before...

**racerx1979** · 15th November 2018, 16:29

I forgot to post this which explains running costs. A few of us sat down and did our own calculations and the build price they are stating at $140k can actually be done for $100k or less if you choose to assemble in countries like Poland or Latvia.

This link explains it very well.

http://www.heuvel-motorsport.com/proto/

**br21** · 15th November 2018, 19:39

"Brand new proto car" is little bit confusing... especially comparing to "brand new r5" where really everything is brand new.
All protos I know (and I know most) were build from used evo parts. might be refreshed/rebuild but not new. if you try to build proto with brand new engine, brand new gearbox (not only gearkit, but casings also), brand new transfer, diffs with new LSDs and final drives, new suspension arms, etc, etc. then build cost will be higher than currently estimated. Other problem is not all parts are available as new anymore...
Van den Heuvel proto which is described in article was actually build in Poland. And is still on polish registration as it's not easy (impossible?) to register it in Netherlands, also just recently they were able to enter it into rally field, last few past years they were driving as zero/X car as federation didn't allow.

**Tarmop** · 16th November 2018, 09:01

You are free to choose donors from every manufacturer, it`s your choice....We have the Focus RS, i30N, VAG (Cupra, Golf R, S1 etc)...you can be very creative and use brand new cars and the end result could/would be still cheaper than many seasons used R5 or an Oreca R4. Plus a well maintained-rebuilt old evo equipment isn`t a bad thing.