1/2 mile suspension set up

winjury · 09-27-2019, 02:46 PM

So I will be attacking my first 1/2 mile race in Ocala, FL come January 20th. What should I do with the suspension of the vehicle?

2011 e90 n55 sedan automatic. I am FBO, PS2, FPS2, Helix Overdrive (To be installed in 2 weeks), 100% e85 (in 2 weeks) and MHD tuned by Ken.

Any advice would be helpful.

krhodes1 · 10-02-2019, 12:35 AM

What the heck is a 1/2 mile race?

relative4 · 10-02-2019, 02:32 PM

Out & back on a drag strip. The finish can be a bit hairy.

vilord · 10-10-2019, 11:26 AM

Hey winjury I see two replies here, and here is another one.

If you want to set up your suspension for racing, check out the suspension subforum, and maybe do some research. Just asking "what should I do" isn't going to get you very far.

If you want someone else to just tell you what to install, call a racing shop and they will be happy to sell you a bunch of stuff.

tcphoto · 10-10-2019, 11:30 AM

A 1/2 mile course? About the only thing you can do is floor it because you're finished in a heartbeat.

vilord · 10-10-2019, 11:32 AM

Do you even turn in a half mile race?
What would the point be in building the suspension at all?

iqraceworks · 10-10-2019, 02:03 PM

Quote:

Originally Posted by winjury

So I will be attacking my first 1/2 mile race in Ocala, FL come January 20th. What should I do with the suspension of the vehicle?

2011 e90 n55 sedan automatic. I am FBO, PS2, FPS2, Helix Overdrive (To be installed in 2 weeks), 100% e85 (in 2 weeks) and MHD tuned by Ken.

Any advice would be helpful.

Most people (including me) have no idea what the hell a 1/2 mile race is. Is it all straight line where you just need to be concerned about the launch?

Is there hard braking involved (run out 1/4 mile...stop..turn around...run back 1/4 mile)??

Is there turning involved?

More info is needed in order to give you some suspension advice.

Fritzer · 10-11-2019, 11:47 AM

You're full E85 on injectors? Never heard of that, you need port injection to do that or you're going to run into some issues to say the least. You should check with the F30 forum because they have way more N55s over there.

LMB335IS · 10-11-2019, 02:20 PM

Quote:

Originally Posted by Fritzer

You're full E85 on injectors? Never heard of that, you need port injection to do that or you're going to run into some issues to say the least. You should check with the F30 forum because they have way more N55s over there.

Quote:

Originally Posted by Fritzer

You're full E85 on injectors? Never heard of that, you need port injection to do that or you're going to run into some issues to say the least. You should check with the F30 forum because they have way more N55s over there.

Familiarize yourself with the Helix HPFP overdrive unit.

Quote:

Originally Posted by winjury

So I will be attacking my first 1/2 mile race in Ocala, FL come January 20th. What should I do with the suspension of the vehicle?

2011 e90 n55 sedan automatic. I am FBO, PS2, FPS2, Helix Overdrive (To be installed in 2 weeks), 100% e85 (in 2 weeks) and MHD tuned by Ken.

Any advice would be helpful.

It's not going to matter so don't worry about it. I've done quite a few of these events, several in Ocala. The runway is dirty, there's no "track" prep, and traction off the line will suck. Dont even think about a hard launch. Get into 3rd gear as fast as possible so you can go WOT. I'll be there Sunday.

winjury · 11-02-2019, 02:35 PM

Quote:

Originally Posted by krhodes1

What the heck is a 1/2 mile race?

I feel like this is a joke...I am sure you can "internet" good enough to search this.

Regardless, the one i go to is in Ocala, hosted by https://wannagofast.com/product/flor...t-driver-pass/

winjury · 11-02-2019, 02:36 PM

Quote:

Originally Posted by LMB335IS

Familiarize yourself with the Helix HPFP overdrive unit.

II'll be there Sunday.

awesome! sorry i missed you

winjury · 11-02-2019, 02:37 PM

Quote:

Originally Posted by Fritzer

You're full E85 on injectors? Never heard of that, you need port injection to do that or you're going to run into some issues to say the least. You should check with the F30 forum because they have way more N55s over there.

no, I am running helix overdrive. I dont need any of that crap.

winjury · 11-02-2019, 02:39 PM

Quote:

Originally Posted by iqraceworks

Most people (including me) have no idea what the hell a 1/2 mile race is. Is it all straight line where you just need to be concerned about the launch?

Is there hard braking involved (run out 1/4 mile...stop..turn around...run back 1/4 mile)??

Is there turning involved?

More info is needed in order to give you some suspension advice.

1/2 mile race. total track is 1.1 miles. You can do a roll race or launch, up to each racer.

No turns, straight line down an airstrip.

LMB335IS · 11-02-2019, 03:48 PM

Quote:

Originally Posted by winjury

Quote:

Originally Posted by LMB335IS

Familiarize yourself with the Helix HPFP overdrive unit.

II'll be there Sunday.

awesome! sorry i missed you

Did you make it?

winjury · 11-04-2019, 07:24 PM

Quote:

Originally Posted by LMB335IS

Did you make it?

Ya I was there just watching though. Pit Pass. lots of n54/55 sitting on the sideline i noticed.

N54rsenal · 11-05-2019, 06:43 PM

Roll cage, fire suit, fire extinguisher, helmet.

Coilovers, 38psi in tires, tires rated for 186mph plus unless you can go faster

Full maintenance of engine, a CEL in a dragrace is the N54's achilles heel

winjury · 11-10-2019, 01:12 PM

Quote:

Originally Posted by N54rsenal

Roll cage, fire suit, fire extinguisher, helmet.

Coilovers, 38psi in tires, tires rated for 186mph plus unless you can go faster

Full maintenance of engine, a CEL in a dragrace is the N54's achilles heel

thanks for your input! ya i am also getting a Hans neck restraint system.
One question though- 38psi in tires seems high. Is this what everyone recommends?

09-27-2019, 02:46 PM	#1
winjury Private 17 Rep 97 Posts Drives: 2011 e90 n55/ 2012 e70 n63 Join Date: Jun 2019 Location: Orlando. iTrader: (0)	1/2 mile suspension set up So I will be attacking my first 1/2 mile race in Ocala, FL come January 20th. What should I do with the suspension of the vehicle? 2011 e90 n55 sedan automatic. I am FBO, PS2, FPS2, Helix Overdrive (To be installed in 2 weeks), 100% e85 (in 2 weeks) and MHD tuned by Ken. Any advice would be helpful. Last edited by winjury; 09-27-2019 at 03:09 PM..
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10-02-2019, 12:35 AM	#2
krhodes1 Colonel 1436 Rep 2,526 Posts Drives: 2011 328i Wagon Join Date: Feb 2011 Location: Westbrook, Maine, Port Charlotte, Florida iTrader: (1) Garage List 2011 128i [10.00] 2011 BMW 328i Touring [10.00]	What the heck is a 1/2 mile race? __________________ '11 328! Touring - Tasman on Chestnut, 6spd manual, factory upside-down "i" option '11 128i Convertible - Space Gray on Savannah Beige, 6spd manual, also '14 Mercedes-Benz E350 wagon, '95 Land Rover Discovery, '74 Triumph Spitfire
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10-02-2019, 02:32 PM	#3
relative4 Major 611 Rep 1,272 Posts Drives: '08 335xi E90 MT stage 1+ Join Date: Feb 2019 Location: Denver, CO iTrader: (0)	Out & back on a drag strip. The finish can be a bit hairy.
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10-10-2019, 11:26 AM	#4
vilord Major 488 Rep 1,309 Posts Drives: E91, Tundra, TT, SV650 Join Date: Apr 2013 Location: boston iTrader: (1) Garage List 2019 Tundra TRD SR5 [0.00] 2002 Audi TT Roadster [0.00] 2009 BMW 328i Wagon [0.00]	Hey winjury I see two replies here, and here is another one. If you want to set up your suspension for racing, check out the suspension subforum, and maybe do some research. Just asking "what should I do" isn't going to get you very far. If you want someone else to just tell you what to install, call a racing shop and they will be happy to sell you a bunch of stuff.
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10-10-2019, 11:30 AM	#5
tcphoto Brigadier General 3537 Rep 3,049 Posts Drives: E92 335i 6MT Coupe Join Date: Dec 2009 Location: Nashville, TN iTrader: (1)	A 1/2 mile course? About the only thing you can do is floor it because you're finished in a heartbeat. __________________
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10-10-2019, 11:32 AM	#6
vilord Major 488 Rep 1,309 Posts Drives: E91, Tundra, TT, SV650 Join Date: Apr 2013 Location: boston iTrader: (1) Garage List 2019 Tundra TRD SR5 [0.00] 2002 Audi TT Roadster [0.00] 2009 BMW 328i Wagon [0.00]	Do you even turn in a half mile race? What would the point be in building the suspension at all?
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10-11-2019, 11:47 AM	#8
Fritzer No one sleep in Tokyo 945 Rep 1,507 Posts Drives: 2011 E90 328i//1995 E34 530i Join Date: Oct 2018 Location: San Diego, California -> Austin, Texas iTrader: (3)	You're full E85 on injectors? Never heard of that, you need port injection to do that or you're going to run into some issues to say the least. You should check with the F30 forum because they have way more N55s over there. __________________ 2011 E90 328i, 1995 E34 530i, 1992 E32 740i, 1991 E34 525i
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11-05-2019, 06:43 PM	#16
N54rsenal Enlisted Member 6 Rep 36 Posts Drives: 2010 335i M Sport LCI Join Date: Oct 2018 Location: Chicago iTrader: (0)	Roll cage, fire suit, fire extinguisher, helmet. Coilovers, 38psi in tires, tires rated for 186mph plus unless you can go faster Full maintenance of engine, a CEL in a dragrace is the N54's achilles heel
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