HP Autowerks, Inc. Project 135i N55 Begins

HP Autosport · 02-10-2011, 10:48 PM

Quote:

Originally Posted by maxnix

To be a little bit more precise, it is the polar moment of inertia.

Thank you for the correction!

HP Autosport · 04-04-2011, 10:21 PM

Some people often feel their car tend to roll around a bit more after it has been lowered, I may have the answer here...

One important component often not paid attention to is the anti roll bar endlink. After lowering your car either on springs or coilovers, it is recommended to get your anti roll bar back to its ideal geometry. if you don't have the AST 4100 single adjustable coilovers with adjustable anti roll bar endlink brackets on the front struts, the only other way to do it is with adjustable endlinks. With the anti roll bar in its ideal geometry it will work properly and gives you the correct roll stiffness as designed.

uberschnell · 04-04-2011, 11:46 PM

Quote:

Originally Posted by HP Autowerks

Some people often feel their car tend to roll around a bit more after it has been lowered, I may have the answer here...

One important component often not paid attention to is the anti roll bar endlink. After lowering your car either on springs or coilovers, it is recommended to get your anti roll bar back to its ideal geometry. if you don't have the AST 4100 single adjustable coilovers with adjustable anti roll bar endlink brackets on the front struts, the only other way to do it is with adjustable endlinks. With the anti roll bar in its ideal geometry it will work properly and gives you the correct roll stiffness as designed.

One of my favorite things about the 4100's.

Cant wait to get my parts on my 135. The car is already so much more fun to drive then my 335 stock!

HPFREAK · 04-05-2011, 05:55 PM

It all adds up when you are doing various things. Those alone will do nothing, but combined with light weight seats, rear seat delete, lighter battery, lighter wheels, hood, exhaust and the brakes will all add up to significant weight savings.

Quote:

Originally Posted by BimmerEngineer

Why mention just a measly 6.6lbs of unsrpung weight? It takes over 150 lbs of unsprung weight to really gain any performance increase >> (that's shorter braking and better cornering).... Reducing 75-100 lbs might make your car accelerate SLIGHTLY quicker (by a tenth or two) but it won't be noticed.... Just two cents worth....

HP Autosport · 04-16-2011, 09:31 PM

The latest addition is a 2mm larger rear anti roll bar to help the rear change direction just a tiny bit quicker since I already have as high of a spring rate as I would like to see on a street/track car.

aisthetes · 04-17-2011, 05:00 PM

Quote:

Originally Posted by HP Autowerks

The latest addition is a 2mm larger rear anti roll bar to help the rear change direction just a tiny bit quicker since I already have as high of a spring rate as I would like to see on a street/track car.

Does this mean the project is still alive? I thought it was to be sold for a 1M? If not, I'd love more updates and pics!

Focusedintntions · 04-17-2011, 05:01 PM

+1

HP Autosport · 04-17-2011, 05:33 PM

Quote:

Originally Posted by aisthetes

Does this mean the project is still alive? I thought it was to be sold for a 1M? If not, I'd love more updates and pics!

The project will continue until the day I take deliver of the 1-series M Coupe and may continue if I can justify keeping both cars, otherwise all the upgraded parts on the 135i will be sold to return the car to stock.

marcus · 04-18-2011, 01:52 PM

Interested on the coilovers and rear M3 bits, possible LSD. But def coilovers

HP Autosport · 05-16-2011, 07:26 PM

Updating with a few quick new photos of the 135i project car.

iCarbon Double Sided CF trunk and Breyton GTSR wheels are the latest addition to the car.

Focusedintntions · 05-17-2011, 09:05 AM

Very nice! Just need to tint that bad boy.

Groundpilot · 05-20-2011, 01:22 PM

Where is the vented carbon hood?

HP Autosport · 05-20-2011, 07:16 PM

Quote:

Originally Posted by Focusedintntions

Very nice! Just need to tint that bad boy.

It is tinted, just a very light one.

Quote:

Originally Posted by M3 09 AND135I 11

Where is the vented carbon hood?

It will go directly on the 1M in the near future.

1&done · 05-22-2011, 10:06 AM

Are those 18in Breytons? What tire setup did you go w/

cooler2442 · 05-22-2011, 10:54 AM

Quote:

Originally Posted by 1&done

Are those 18in Breytons? What tire setup did you go w/

Yup Harold is running the 18" Silver Breytons. I forgot the exact tire setup he told me that he was running but he also has spacers as well I believe.

HP Autosport · 05-22-2011, 11:37 AM

Quote:

Originally Posted by 1&done

Are those 18in Breytons? What tire setup did you go w/

245's PS2's all the way around for street and 255's Yokohama AD08's for track since Breyton does not make a wider rear wheel.

Both of the above may be for sale soon!

V8Beatr · 05-22-2011, 03:04 PM

May be interested in the tires and rims.

HP Autosport · 05-22-2011, 07:46 PM

The latest...A finned diff cover!

Sorry for the low quality photos...

crex · 05-22-2011, 08:48 PM

Quote:

Originally Posted by HP Autowerks

245's PS2's all the way around for street and 255's Yokohama AD08's for track since Breyton does not make a wider rear wheel.

Both of the above may be for sale soon!

Those wheels wouldn't last a day around Northern VA with the potholes.

Focusedintntions · 05-23-2011, 08:29 AM

Finned diff cover??!?! Who makes that??

pixelblue · 05-23-2011, 09:39 AM

Harold,
How much for the finned diff cover?

1&done · 05-24-2011, 06:17 AM

Quote:

Originally Posted by HP Autowerks

245's PS2's all the way around for street and 255's Yokohama AD08's for track since Breyton does not make a wider rear wheel.

Both of the above may be for sale soon!

Yep, I am interested in those. Going to use Advans for DD

I'll get back to you later today regarding the custom spring perch.

04-04-2011, 10:21 PM	#46
HP Autosport Supreme Allied Commander 3815 Rep 54,319 Posts Drives: F80 M3 Join Date: Mar 2007 Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com iTrader: (36)	HPA adjustable endlink kit Some people often feel their car tend to roll around a bit more after it has been lowered, I may have the answer here... One important component often not paid attention to is the anti roll bar endlink. After lowering your car either on springs or coilovers, it is recommended to get your anti roll bar back to its ideal geometry. if you don't have the AST 4100 single adjustable coilovers with adjustable anti roll bar endlink brackets on the front struts, the only other way to do it is with adjustable endlinks. With the anti roll bar in its ideal geometry it will work properly and gives you the correct roll stiffness as designed. Attached Images
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04-16-2011, 09:31 PM	#49
HP Autosport Supreme Allied Commander 3815 Rep 54,319 Posts Drives: F80 M3 Join Date: Mar 2007 Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com iTrader: (36)	The latest addition is a 2mm larger rear anti roll bar to help the rear change direction just a tiny bit quicker since I already have as high of a spring rate as I would like to see on a street/track car.
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04-17-2011, 05:01 PM	#51
Focusedintntions Colonel 105 Rep 2,696 Posts Drives: 2011 135i M-Sport :D Join Date: Nov 2010 Location: NoVA iTrader: (1)	+1 __________________ Faster, faster, faster, until the thrill of speed overcomes the fear of death… – Hunter Thompson
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04-18-2011, 01:52 PM	#53
marcus First Lieutenant 15 Rep 378 Posts Drives: 2011 135i Vert Join Date: Jul 2008 Location: USA iTrader: (1)	Interested on the coilovers and rear M3 bits, possible LSD. But def coilovers __________________
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05-16-2011, 07:26 PM	#54
HP Autosport Supreme Allied Commander 3815 Rep 54,319 Posts Drives: F80 M3 Join Date: Mar 2007 Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com iTrader: (36)	HP Autowerks, Inc. Project 135i with the addition of iCarbon Double Sided CF Trunk Updating with a few quick new photos of the 135i project car. iCarbon Double Sided CF trunk and Breyton GTSR wheels are the latest addition to the car. Attached Images
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05-17-2011, 09:05 AM	#55
Focusedintntions Colonel 105 Rep 2,696 Posts Drives: 2011 135i M-Sport :D Join Date: Nov 2010 Location: NoVA iTrader: (1)	Very nice! Just need to tint that bad boy. __________________ Faster, faster, faster, until the thrill of speed overcomes the fear of death… – Hunter Thompson
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05-20-2011, 01:22 PM	#56
Groundpilot Banned 476 Rep 1,711 Posts Drives: 135I DCT , e92 M3 DCT, Audi A6 Join Date: Mar 2010 Location: long island,ny iTrader: (0)	Where is the vented carbon hood?
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05-22-2011, 10:06 AM	#58
1&done Lieutenant Colonel 247 Rep 1,585 Posts Drives: 2011 VO 1M Join Date: Sep 2010 Location: Jupiter, FL iTrader: (28) Garage List 2010 Porsche 911 GT3 [10.00] 2021 BMW X5 SD40i [0.00] 2023 Toyota TRD Pro [0.00] 2011 BMW 1M [9.83] 2014 Ford Raptor [0.00] 2005 Ariel Atom 2 [0.00] 2008 135i SOLD [10.00]	Are those 18in Breytons? What tire setup did you go w/ __________________ ///1M #643 of #740
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05-22-2011, 03:04 PM	#61
V8Beatr Private 8 Rep 65 Posts Drives: 2011 135i Join Date: May 2011 Location: Jax, FL iTrader: (0)	May be interested in the tires and rims. __________________ BMWP Exhaust, BMP Suspension, M3 Front Sway, Scopione CF Diffuser, 1Addicts.com sticker = + 50HP
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05-22-2011, 07:46 PM	#62
HP Autosport Supreme Allied Commander 3815 Rep 54,319 Posts Drives: F80 M3 Join Date: Mar 2007 Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com iTrader: (36)	The latest...A finned diff cover! Sorry for the low quality photos... Attached Images
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05-23-2011, 08:29 AM	#64
Focusedintntions Colonel 105 Rep 2,696 Posts Drives: 2011 135i M-Sport :D Join Date: Nov 2010 Location: NoVA iTrader: (1)	Finned diff cover??!?! Who makes that?? __________________ Faster, faster, faster, until the thrill of speed overcomes the fear of death… – Hunter Thompson
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05-23-2011, 09:39 AM	#65
pixelblue Colonel 140 Rep 2,234 Posts Drives: the silver bullet Join Date: Feb 2010 Location: northern virginia iTrader: (2) Garage List 2010 135i [8.90]	Harold, How much for the finned diff cover? __________________ "I would quote everything pixelblue said, but you've already read it. Take it from someone who's put the 1 through its paces"
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