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      05-17-2022, 11:35 AM   #1
4N Motorsport
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What's up everyone!


My name is Mike with 4N Motorsport. If you haven't already, be sure to follow our IG @4n_Motorsport. I am in the process of building a M4 GT4 replica from my 2015 M4. The car was fully gutted, and we are welding in a permanent SCCA spec roll cage. I am working with Bimmerworld and running the GTmore MCS suspension setup. This relocates the front spindles, and changes the suspension geometry just like the GT4 race car. The benefit is being able to run 11in wheels and 315s on all 4 corners. This car will be tuned with our single turbo kit to around 700whp for the track. I am running a twin scroll EFR8474 for maximum transient response time.


I am shooting to have this car ready for an open test day at Infineon Raceway/ Sonoma on the 25th. I will do my best to update on here when I have a second. Here is the build sheet of parts going on this car.



MCS Reservoir Damper Set 3 way
MCS Damper Hardware Kit,
[IMG][/IMG]Front Camber/Caster Plates, Eye Mount GTmore
Hypercoil : 2.25, 5", 1000 LB Spring
Hypercoil : 2.25, 6", 900 LB Spring
2.25" Hyperco Helper Spring Set
Rear Clevis Mount Set -
11-12.5" Strut Mounted Swaybar End Links
SPL PRO Rear End Links - SPL RE F8X
MCS Canister Bracket Kit
SPL Front Tension/Trailing/Caster Arms
SPL Front Lower Control Arms
SPL Front Tie Rod Ends
Steering Rack Limiter Kit
GT4 32mm Wheel Spacer
Wheel Bolt, 81mm - F82 M4 GT4
Rear Wheel Stud, BMW GT4
Quick-Change Coated Race Lug Nut M12x1.5 - 17mm
APEX EC-7 18x11 wheels X4
Sparco pro adv seat
4N Motorsport 8474EFR single turbo kit
4N Motorsport front mount intake kit
4N Motorsport 4in titanium custom exhaust
Custom weld in SCCA spec full cage
4N Motorsport built motor CP rods, powerpak pistons, ACl bearings, ported head
Tuned by wedge via MHD
SSP clutch packs
APR GTC300 wing
Hoosier R7 315/30/18s x4
AP Motorsport GT4 front splitter
BMW GT4 dry carbon canards
Sparta Evolution big brake kit
4N Custom brake cooling ducts
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      05-17-2022, 11:37 AM   #2
SYT_Shadow
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This is really cool! We are also building two GTMores with BimmerWorld!!

Good luck on the build!
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      05-17-2022, 01:55 PM   #3
M3nmotion18
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Nice Build! GL on the Sonoma & give us an update!
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      05-18-2022, 12:11 AM   #4
Fat Goose
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Followed!
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      05-18-2022, 08:53 AM   #5
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I've been drooling over your turbo kits and now this lol.
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      05-18-2022, 11:12 AM   #6
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Awesome.
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      05-28-2022, 09:57 AM   #7
sly1types
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Nice build, i would to hear the feedback on how the single turbo feels on the track.
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      05-28-2022, 07:06 PM   #8
McBobby Jr
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Can't wait to hear what the car sounds like with a 4" Titanium Exhaust, awesome work 4N.
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      05-28-2022, 07:17 PM   #9
McBobby Jr
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Quote:
Originally Posted by sly1types View Post
Nice build, i would to hear the feedback on how the single turbo feels on the track.
Here's Bimmer Perfomance Center's M4 they built using 4N Motorsports Single Turbo Kit, and it sounds wicked paired with a 6-Speed.

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      06-18-2022, 12:09 PM   #10
4N Motorsport
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I got an update for you guys!

This project turned out absolutely perfect. From start to finish it took me a little over 1 month 1/2. I was exhausted after getting it to laguna seca for testing. Once I did my first shakedown run the car ran flawlessly all day 5 sessions 20min each just checked tire pressure and changed an oil filter mid day. Huge shout out to all the vendors involved getting me the parts for this project and tuning.


@bimmerworld
@splparts
@motiv_motorsport
@steven_wedgeperformance
@aprperformance
@ap.motorsport
@fullracemotorsports
@motioncontrolsuspension
@apexraceparts
@ticonindustries
@turnermotorsport
@wedgeperformance
@sparco_official
@hoosiertire

I was able to run consistent mid 1.38 lap times coming within 7/10s of a second for the fastest time ever set in an F8x chassis at laguna seca. I was forced to let off between T5 and T6 to pass the 90db sound restriction. I was also letting off in T1 had some issues all day with the rear of the car. It didn't feel very planted at around 135mph.


This was my first time out with the car and ever tracking an F8x chassis while having issues with corner exit traction and later found out my rear toe was 1/16 out instead of 1/8 in. I ended up destroying the rear tires. They were done at the end of the day. I am going back to laguna again next month and focusing on chassis tuning. Also gonna add in some more wing angle after I reinforce the trunk as well. The motor I built with the new 4N GT EFR turbo kit was running all day perfectly! EFR spool up is amazing feels like an N/A car at 3,500rpms and pulls all the way to 7,500!
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      06-19-2022, 04:47 PM   #11
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This car looks really menacing and actually like a BMW. Thumbs up.
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