e90 M3 Race Car Project Thread

scottn2retro · 02-07-2012, 08:39 PM

A race car as heavy as ours will be is going to need great brakes. How about StopTech GT 4 piston (per our class rules) calipers on all 4 corners

BreakPoint · 02-08-2012, 08:57 AM

Quote:

Originally Posted by scottn2retro

A race car as heavy as ours will be is going to need great brakes. How about StopTech GT 4 piston (per our class rules) calipers on all 4 corners

What to those rotors weigh? Do the class rules forbid the use of a two piece rotor?

AMPowerJ · 02-08-2012, 09:00 AM

I have the exact same brakes! What pads are you going to use?

scottn2retro · 02-08-2012, 11:31 AM

Quote:

Originally Posted by AMPowerJ

I have the exact same brakes! What pads are you going to use?

Two piece rotors are allowed in Prepared class (but not 6 piston)

We'll be contacting Hawk about pads.

FrenchBoy · 02-08-2012, 11:52 AM

Quote:

Originally Posted by AMPowerJ

I have the exact same brakes! What pads are you going to use?

Almost. We have the Trophy Kit. This is the GT4. It looks very similar but it's not quite the same.

Actually, I'd love to know what differs.

scottn2retro · 02-09-2012, 06:02 PM

Ralph has been doing some exhaust and suspension install/fitting. I'll see if he has taken some pics of his latest work.

Here's from just doing a test fit of the brakes inside the APEX 10.5" wheels

scottn2retro · 02-11-2012, 09:26 PM

Ralph started test fitting suspension with the wheel/tire combo

AST shocks and struts from APEX

BMWNTHZST · 02-12-2012, 09:49 AM

Looking great so far.

Where did you buy the APEX wheels from? They look like a great track wheel.

scottn2retro · 02-12-2012, 11:12 AM

Quote:

Originally Posted by BMWNTHZST

Looking great so far.

Where did you buy the APEX wheels from? They look like a great track wheel.

http://www.apexraceparts.com/

It's a great value in a race wheel. Strong and light

BMWNTHZST · 02-12-2012, 12:09 PM

Quote:

Originally Posted by scottn2retro

http://www.apexraceparts.com/

It's a great value in a race wheel. Strong and light

Awesome!

Cheers

scottn2retro · 02-13-2012, 01:25 AM

Some pictures of the front wheel/tire fitment.

275/35x18 on a 10.5" Wheel

Merked M3 · 02-13-2012, 01:50 AM

WOW the 275/35/18 on a 10.5 mounts fine in the front!!! Now that is a badass square setup! Are those the standard ET?

FrenchBoy · 02-13-2012, 11:58 AM

10.5" seems a bit wide for 275 tires. Any reason you decided to use 10.5" rims instead of 9.5" or 10"? Or larger rubber with 10.5" rims?

Thanks

scottn2retro · 02-13-2012, 12:31 PM

Quote:

Originally Posted by FrenchBoy

10.5" seems a bit wide for 275 tires. Any reason you decided to use 10.5" rims instead of 9.5" or 10"? Or larger rubber with 10.5" rims?
Thanks

That may have a small or no spacer. Wheel offset is 27 mm

We like to do square setups when possible. The 305 tires aren't available yet, but the 10.5 wheels gave us the most flexibility.

scottn2retro · 02-20-2012, 11:11 PM

When we scraped out all the sound deadening material from the tub (does not include the doors), it pretty much filled a small plastic grocery bag and weighed about 7 lbs.

The real PITA before the car went off to the cage/paint shop was the surprise we got when we pulled the headliner. There was this fiberglass type sound deadening/insulation that was glued to the underside of the roof. Yep, I had to take adhesive remover and get all the mess off the inside of the roof.

scottn2retro · 02-20-2012, 11:14 PM

Oh, how the wing came out

GuamX1 · 02-21-2012, 12:21 AM

nice

lukester · 02-21-2012, 01:49 AM

Quote:

Originally Posted by scottn2retro

When we scraped out all the sound deadening material from the tub (does not include the doors), it pretty much filled a small plastic grocery bag and weighed about 7 lbs.

The real PITA before the car went off to the cage/paint shop was the surprise we got when we pulled the headliner. There was this fiberglass type sound deadening/insulation that was glued to the underside of the roof. Yep, I had to take adhesive remover and get all the mess off the inside of the roof.

wow. that doesn't sound much. 7lbs for sound deadener isn't that bad.
any idea how much the roof sound deadening/insulation weighted?

scottn2retro · 02-21-2012, 02:38 AM

Quote:

Originally Posted by lukester

wow. that doesn't sound much. 7lbs for sound deadener isn't that bad.
any idea how much the roof sound deadening/insulation weighted?

Remember, that was not including the sound deadening in the doors. I think a lot of the weight these days is in the carpet foam. I've seen Porsche race cars leave the sound deadening in and paint over it.

That roof insulation was really light. Think of fiberglass insulation and it was probably only about .5" thick. The only reason it was glued was probably to hold it up there in the assembly process until the headliner goes in.

scottn2retro · 02-21-2012, 01:43 PM

Continued work on the livery this past weekend. Turning the silver into white

tlow98 · 02-21-2012, 04:54 PM

nice taste in exhaust. I'm struggling to see what's going on with the livery, but that's quite subjective and well it looks like a great build so far!

turb0mik3 · 02-21-2012, 04:58 PM

Really cool build. Enjoyed reading and looking at the pictures!

02-07-2012, 08:39 PM	#89
scottn2retro Major 496 Rep 1,342 Posts Drives: Join Date: Oct 2007 Location: Huntington Beach, Ca. iTrader: (2)	A race car as heavy as ours will be is going to need great brakes. How about StopTech GT 4 piston (per our class rules) calipers on all 4 corners __________________ 2015 M4 BMW Club Racer SCTS Racing https://www.facebook.com/sctsraceteam/
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02-08-2012, 09:00 AM	#91
AMPowerJ One mod leads to another ... 416 Rep 2,900 Posts Drives: 2014 F10 M5 Join Date: Apr 2008 Location: Blythewood, SC iTrader: (10)	I have the exact same brakes! What pads are you going to use? __________________ Current: 2014 F10 M5 Previous: 2015 F80 M3, 2013 E92 M3, 2013 F10 M5, 2009 E90 M3, 1998 E36 M3
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02-09-2012, 06:02 PM	#94
scottn2retro Major 496 Rep 1,342 Posts Drives: Join Date: Oct 2007 Location: Huntington Beach, Ca. iTrader: (2)	Ralph has been doing some exhaust and suspension install/fitting. I'll see if he has taken some pics of his latest work. Here's from just doing a test fit of the brakes inside the APEX 10.5" wheels __________________ 2015 M4 BMW Club Racer SCTS Racing https://www.facebook.com/sctsraceteam/
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02-11-2012, 09:26 PM	#95
scottn2retro Major 496 Rep 1,342 Posts Drives: Join Date: Oct 2007 Location: Huntington Beach, Ca. iTrader: (2)	Ralph started test fitting suspension with the wheel/tire combo AST shocks and struts from APEX __________________ 2015 M4 BMW Club Racer SCTS Racing https://www.facebook.com/sctsraceteam/
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02-12-2012, 09:49 AM	#96
BMWNTHZST Enthusiast 194 Rep 1,283 Posts Drives: 2015 F80 M3 Join Date: Jan 2009 Location: Toronto iTrader: (27) Garage List 2011 BMW E93 M3 [0.00] 2004 BMW M3 [9.50] 2015 BMW F80 M3 [0.00] 1997 BMW 840CI [9.50] 2011 BMW X5 M [10.00] 2008 BMW 335i Conve ... [8.40]	Looking great so far. Where did you buy the APEX wheels from? They look like a great track wheel.
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02-13-2012, 01:25 AM	#99
scottn2retro Major 496 Rep 1,342 Posts Drives: Join Date: Oct 2007 Location: Huntington Beach, Ca. iTrader: (2)	Some pictures of the front wheel/tire fitment. 275/35x18 on a 10.5" Wheel __________________ 2015 M4 BMW Club Racer SCTS Racing https://www.facebook.com/sctsraceteam/
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02-13-2012, 01:50 AM	#100
Merked M3 First Lieutenant 30 Rep 361 Posts Drives: E90 M3 6MT Join Date: Apr 2011 Location: Sunnyvale, CA iTrader: (0)	WOW the 275/35/18 on a 10.5 mounts fine in the front!!! Now that is a badass square setup! Are those the standard ET? __________________ 2008 E90 M3 6-MT - Sold but not forgotten - amazing car The next car, my Porsche Cayman S
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02-13-2012, 11:58 AM	#101
FrenchBoy Lieutenant Colonel 234 Rep 1,508 Posts Drives: '16 F80 M3 Join Date: Mar 2006 Location: Seattle, WA iTrader: (0)	10.5" seems a bit wide for 275 tires. Any reason you decided to use 10.5" rims instead of 9.5" or 10"? Or larger rubber with 10.5" rims? Thanks __________________ Current: 2016 F80 M3 6-Speed \| SO \| AB XT1 \| ZCP \| M Performance Suspension \| GC Camber Plates Previous: 2009 E90 M3
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02-20-2012, 11:11 PM	#103
scottn2retro Major 496 Rep 1,342 Posts Drives: Join Date: Oct 2007 Location: Huntington Beach, Ca. iTrader: (2)	When we scraped out all the sound deadening material from the tub (does not include the doors), it pretty much filled a small plastic grocery bag and weighed about 7 lbs. The real PITA before the car went off to the cage/paint shop was the surprise we got when we pulled the headliner. There was this fiberglass type sound deadening/insulation that was glued to the underside of the roof. Yep, I had to take adhesive remover and get all the mess off the inside of the roof. __________________ 2015 M4 BMW Club Racer SCTS Racing https://www.facebook.com/sctsraceteam/
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02-20-2012, 11:14 PM	#104
scottn2retro Major 496 Rep 1,342 Posts Drives: Join Date: Oct 2007 Location: Huntington Beach, Ca. iTrader: (2)	Oh, how the wing came out __________________ 2015 M4 BMW Club Racer SCTS Racing https://www.facebook.com/sctsraceteam/
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02-21-2012, 12:21 AM	#105
GuamX1 First Lieutenant 28 Rep 381 Posts Drives: 08 BMW 135i, 08 128 Cab Join Date: Oct 2011 Location: Guam iTrader: (0)	nice __________________ 2013 BMW X1 * 1973 Clubman GT * 2016 Mazda MX5 * 2000 Honda S2000 2004 BMW 325i Touring * 2009 BMW X5 3.0xdrive
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02-21-2012, 01:43 PM	#108
scottn2retro Major 496 Rep 1,342 Posts Drives: Join Date: Oct 2007 Location: Huntington Beach, Ca. iTrader: (2)	Continued work on the livery this past weekend. Turning the silver into white __________________ 2015 M4 BMW Club Racer SCTS Racing https://www.facebook.com/sctsraceteam/
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02-21-2012, 04:54 PM	#109
tlow98 Major General 2188 Rep 5,000 Posts Drives: 2009 E91, 2014 F15 x35i Join Date: Aug 2011 Location: Bay Area iTrader: (2)	nice taste in exhaust. I'm struggling to see what's going on with the livery, but that's quite subjective and well it looks like a great build so far!
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02-21-2012, 04:58 PM	#110
turb0mik3 242 Rep 2,781 Posts Drives: E90 335i Racecar Join Date: Jan 2010 Location: San Diego, CA iTrader: (1) Garage List 2010 BMW 335i [8.90]	Really cool build. Enjoyed reading and looking at the pictures! __________________ HG Motorsports \| Motiv Motorsport \| Sparta Evolution \| BBS Motorsports \| Sabelt \| JRZ \| NASA ST1 SoCal --- 554whp/487wtrq --- 3200lbs <<YouTube Channel w/ Race Videos>>
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