Time attack 135 n54

[sancho78rus]

Perhaps this information will be useful to someone building a timeattack based on a BMW e8x or e9x n54.

Body
Some carbon parts
1270kg. 54% front, 46% rear

Aero
Huge double element custom wing
Custom front splitter
Racelouvers fender vents

Suspension
KW competition 2A kit + kw top mounts front\rear
All custom made fully adjustable arms bearings
M3 sway bars front\rear
-5 front camber, -3.5 rear camber, 9 caster, front little toe out, rear minimum toe in
Solid engine, subframe, diff mouts
No rubber or poliuretane (except sway bar links)

Brakes
XYZ fron\rear
Custom brake balance regulator
No ABS

Engine, cooling
VRSF intake relocation kit
VRSF 7.5" FMIC
Custom side exhaust
OEM radiator
aux side radiator
side oil cooler
MHD

Wheels
Rota 18"x10" et20
250\280 slicks

Some video on IG https://www.instagram.com/anton.gultyaev/

Still much plans and work to do.

 

[SlowE93]

Never seen a wing that HUGE on a Bmw

 

[JohnDaviz]

The Splitter and the Wing are --- wow -- just wow
Are the Splitter and Wing attached/mounted to the chassis?

May be you have seen the thread on 1addicts already. But engineering wise this is the greatest thread i have read in forever i think regarding aero of a 1-series.

fe1rx adds full aero

fe1rx adds full aero

www.1addicts.com

With just the front splitter and that empty rear you are missing HUGE on downforce. With your room you can make an AWESOME diffusor on the rear and improve grip to the next level.

Also check Jackie Ding (PHD Racing) on youtube. He has built a crazy TA Supra.

There are some crazy informative videos about closed undertray and also wing.

 

[sancho78rus]

Yes, they are mounted to the chassis (including front splitter side support rods). Wing was tested at 210km\h speed. One man can hang on one side of the wing. Also I can stand on splitter easily (110kg).
I was reading fe1rx's thread some months ago.
Will do flat floor and rear diffuser this winter. Also planing to make one-piece front (bumper, fenders, hood) and modify front splitter.

 

[JohnDaviz]

Really cool car!

But why did you make all the arms yourself? Because you can? Were they in the end cheaper for your? Custom Spec? I am amazed of those parts tbh.

 

[sancho78rus]

Yes, they were cheaper.

 

[JohnDaviz]

If i read right, stock turbos with MHD Stage x?
You have no thermal issues on warm days? I make one lap on the nordschleife and my car is overheating with yellow engine light on 14psi.

 

[sancho78rus]

Yes, stock turbos and no limp mode. I ran 20-30 min session with no cool down laps in 25C ambient temperature.
But now stock turbo died (WG). I'm planing to install RB game finishers.

 

[RTA]

How is the car these days?

 

[sancho78rus]

Had no time to race much last season.
Preparations for next year are underway. S55+DCT is already inside.

 

[RTA]

Interesting journey!
That S55 is a great improvement, was the N54 giving tomuch hurdles?

 

[jzx_andy]

Strong update game, OP

 

[sancho78rus]

Interesting journey!
That S55 is a great improvement, was the N54 giving tomuch hurdles?

Had many different problems with n54. S55 is newer and more suitable for racing engine.

 

[sancho78rus]

Here is one of the best laps on n54:

 

[DirtKurt]

How did you achieve -5 camber in the front. Im battling suspension setup in my e92

 

[sancho78rus]

How did you achieve -5 camber in the front. Im battling suspension setup in my e92

All arms are custom.

 

[houtan]

Had no time to race much last season.
Preparations for next year are underway. S55+DCT is already inside.

Very nice! What ecu are you using for the s55?

 

[sancho78rus]

Very nice! What ecu are you using for the s55?

At the start it will be stock with gts flash.
Later Maxxecu may be

 

[houtan]

At the start it will be stock with gts flash.
Later Maxxecu may be

Thank you.

Pardon my ignorance, so by stock do you mean you brought over the s55 ECU for now?

 

[sancho78rus]

Thank you.

Pardon my ignorance, so by stock do you mean you brought over the s55 ECU for now?

Yes, I have all wiring, dashboard, almost all units from s55.
To use MaxxECU I need direct injection conversion. I decided not to do it in this season. May be later.