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Tracking / Autocross / HPDE / Drifting What these cars were built for!


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Old 12-30-2021, 07:54 PM   #1
Nick Dugdale
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Nicks Comprehensive 86 Build - Weight Savings

Driver Name: Nick Dugdale
Member as of: 12/30/21
Car Info: 2015 Subaru BRZ Limited - 6MT
Intent: Class appropriately in 'NASA TT5/ST5'

Thread Goals: Building a credible weight loss database demonstrating the weight shedding potential of the 86 chassis.

(Please reference this 'Google Sheets Link' to access my live weight sheet.)

Honorable mentions: (FT86Club Members)
'Official Component Weight Reduction Thread' The detailed contributions are valued greatly.
'Anthony's FRS 4 Step Diet Program' Just an epic thread for its time.

All weights are tested on one of two reliable scales in the shop. These weights are honest and can be used to figure your own losses/gains.

(ACCESS MY GOOGLE SHEETS LINK)


IG: nikko.zc6
Youtube: My Channel
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"The vision manifests the reality." NASA TT5 Silver 2015 Subaru BRZ Limited

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Old 12-31-2021, 09:51 AM   #2
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Great write up. One question: Is there any downside to leaving off the fuel injector covers? I left mine off when I reinstalled my engine and made an aluminum bracket for the injector ecu. Seems to work fine. I'm guessing they are there in case of a catastrophic collision.
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Old 12-31-2021, 12:48 PM   #3
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I personally do not foresee any negative side effects to removing those heavy PI covers. I've been tracking with them off for over 6 months now with no issues. IMHO it's just more weight off the nose.
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"The vision manifests the reality." NASA TT5 Silver 2015 Subaru BRZ Limited

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Old 12-31-2021, 03:45 PM   #4
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I will be going down this path very soon!
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Old 01-04-2022, 01:36 AM   #5
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My race car is 1030KG with minimal fuel

A bit more extreme I removed the loom from the car and thinned out all the redundant wiring that was over 5kG, about the same again in unused brackets.

things like the air bag impact sensors weigh a bit , only running 1 horn, lots of small things help
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Old 01-08-2022, 02:20 PM   #6
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FUTURE WEIGHT REDUCTION

Speculative Weight Losses
- Fiberglass hollow doors -83 (Via HGK @ 8lb each)
- Carbon trunk lid ~ -17 (Via Marsh OEM = 21 Lb)
- Gut Headlights -5.2 (Via FT86)
- Cut up dash bar ~ -5
- Remove Fog lights -2.2 (Via FT86)
- Remove Dash board - 13 (Via FT86)
- Remove excess wiring looms ~ -4
- Lexan Windows Via P4P (F:-14lb / R: -7lb / Sides: -2lb) Total: -23.0
- Gen 2 BRZ aluminum knuckles -8
- Lightweight flywheel - 9
- Aluminum driveshaft -12 (Via FT86)
- Remove 9Lives wing - 19
- Remove center console -4
- APR carbon mini mirrors -2.5 (Via FT86)

WEIGHTS I CAN'T FIND ONLINE
- Wipers + Motor ?
- OEM trunk and lid arms ?
- OEM Steering column / Electric PS (From wheel hub to rack splines) ?
- OEM Roof ?
- OEM Dash Bar ?
- OEM Radiator ?
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"The vision manifests the reality." NASA TT5 Silver 2015 Subaru BRZ Limited
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Old 01-09-2022, 04:12 AM   #7
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This certainly makes me wonder how heavy my car will be when its done. I'm aiming for 950kg or 2095lbs.
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Old 01-09-2022, 01:24 PM   #8
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i could Probably take the wipers/motor out and tell you that.
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I swear I will punch your car if you put these on. Right in the face.
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Old 01-09-2022, 01:26 PM   #9
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Quote:
Originally Posted by e21jason View Post
My race car is 1030KG with minimal fuel

A bit more extreme I removed the loom from the car and thinned out all the redundant wiring that was over 5kG, about the same again in unused brackets.

things like the air bag impact sensors weigh a bit , only running 1 horn, lots of small things help
do you have some info/pics on your car?
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I swear I will punch your car if you put these on. Right in the face.
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Old 01-29-2022, 07:30 PM   #10
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Originally Posted by ML View Post
do you have some info/pics on your car?
Many of the builds photo's you will find on my Instagram. Locking down the E85 tuning next week, pumped to start the 2022 NASA season.

The Lexan windows from Plastics 4 Performance should be hitting mainland US from the UK mid February.

Since I have a full race cage planned for the car 'October 2022' the mission is to take out as much weight as I possibly can in preparation for the additional weight the cage will be adding later on. 2,650lb is my MCW for class. Let the fun begin!

(Few photos attached from my IG)
IG: @Nikko.zc6
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Old 02-01-2022, 10:01 AM   #11
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Quote:
Originally Posted by Nick Dugdale View Post
Many of the builds photo's you will find on my Instagram. Locking down the E85 tuning next week, pumped to start the 2022 NASA season.

The Lexan windows from Plastics 4 Performance should be hitting mainland US from the UK mid February.

Since I have a full race cage planned for the car 'October 2022' the mission is to take out as much weight as I possibly can in preparation for the additional weight the cage will be adding later on. 2,650lb is my MCW for class. Let the fun begin!

(Few photos attached from my IG)
IG: @Nikko.zc6
WHOA! Good work mate. I have been running ST/TT5 in my 2015 FRS. Guttted to the core (have heater/dashboard and wiring intact) but includes f/r BBK, fire system, full cage etc. With the side windows removed and doors gutted an touch over 2770lbs with driver (225lbs suited).

Do you plan to be at VIR in March? Which region do you plan to run in?

Cheers,

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Old 02-06-2022, 03:32 PM   #12
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Thank you Lutfy,

Your personal build sounds great!

I recently moved up to East TN from FL and will be running predominately within the NASA SE and GL regions. I will be driving with NASA SE at 'AMP' March 12-13th this year.

The car is prepared for NASA's TT5 class and eventually prepared for 'Super Touring 5'.

Feel free to follow the youtube channel: Nikkos Garage

See you out there!
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Old 02-07-2022, 08:51 AM   #13
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Just an off the wall idea: Would removing the power steering assist mtr for weight reduction cause any problems. These cars seem pretty easy to steer with the engine off.
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Old 02-07-2022, 09:42 PM   #14
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Just an off the wall idea: Would removing the power steering assist mtr for weight reduction cause any problems. These cars seem pretty easy to steer with the engine off.
This is exactly why I am looking for the official weight of the BRZ steering column with the EPS motor on it. Could be the best kept secret to eliminating that extra bit of weight on a track build. --- Yes, I am already all for it.

86 / BRZ Steering column from 'HGK' (Carbon = 4.1 lb / Steel = 7.7 lb): Carbon / Steel 86 steering column
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