Robispec TIME ATTACK Build - Page 5 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

robispec · 03-03-2013, 05:57 PM

Quote:

Originally Posted by RAWR BRZ

I saw your car today on harbor and adams right by OCC lol. I thought wow someone with a super modded frs at OCC...what?? 777 on the back?? This guy tracks too!! Then while I was turning in I saw the Robispec sticker/logo and it all made sense haha. sick car btw

yeah I def. have a sickness! Thanks for the shout out!

Robi

robispec · 03-03-2013, 06:53 PM

I love going fast!

EAGLE5 · 03-26-2013, 02:19 PM

I see you have slightly wider tires on the same diameter wheels. What do you think of going with either lower-profile tires and the same width you have now on 17's or switching to 18's or even 19s at the same width?

Captain Insano · 03-26-2013, 02:33 PM

This thread is awesome

robispec · 03-26-2013, 06:08 PM

Quote:

Originally Posted by jsimon7777

I see you have slightly wider tires on the same diameter wheels. What do you think of going with either lower-profile tires and the same width you have now on 17's or switching to 18's or even 19s at the same width?

Testing has proven that a non forced induction car with me in the seat is faster on 17" 225 with a enkei (LIGHT!) 8" wheel. the only reason to go to an 18" is if you had someone giving you tires and they didn't mind you losing. 19" are even worse...tires are springs and with geometry corrections in place so that the car distribiutes its weight transfer correctly SOFT IS FASTER...

Vonsamhain · 03-26-2013, 09:13 PM

I don't remember where I read it. But what's your take on front and rear bumper beams? Did you remove those? Do you remember how much each weighed and wether it made much a change in frame rigidity? I thought it was Robispec's car but can't remember.

robispec · 03-26-2013, 11:34 PM

Pulled both beams no change in stiffness.
Speedventures requires that we run at 2508 so we put the beam back in the rear.

Robi

Captain Snooze · 03-27-2013, 04:40 AM

Would you please tell me what rear lca and toe adjusters you are using?

robispec · 03-27-2013, 07:38 AM

currently stock.

EarlQHan · 03-28-2013, 07:43 AM

Quote:

Originally Posted by Vonsamhain

I don't remember where I read it. But what's your take on front and rear bumper beams? Did you remove those? Do you remember how much each weighed and wether it made much a change in frame rigidity? I thought it was Robispec's car but can't remember.

On modern cars the bumper beams are for safety and damage reduction, they do little for stiffness. Plus a box shape isn't efficient for torsional stiffness.

EAGLE5 · 03-30-2013, 07:26 PM

I love what robispec has done to the car. I also hate it because his goals are different from mine so most of his mods are useless to me, like the crash beam removal and suspension. At the same time, I can see getting those Enkeis and and the oil/water radiator.

robispec · 03-30-2013, 08:26 PM

Light weight aluminum beams in the works!

EAGLE5 · 03-30-2013, 09:18 PM

Interesting, but hard to prove the safety of without a crash test or some serious computer engineering. Steel and aluminum act differently. If possible, go wider than stock for better offset protection.

jonnyozero3 · 03-30-2013, 09:44 PM

Quote:

Originally Posted by robispec

Testing has proven that a non forced induction car with me in the seat is faster on 17" 225 with a enkei (LIGHT!) 8" wheel. the only reason to go to an 18" is if you had someone giving you tires and they didn't mind you losing. 19" are even worse...tires are springs and with geometry corrections in place so that the car distribiutes its weight transfer correctly SOFT IS FASTER...

Robi -

Can you confirm the best wheel width you've found is 8"? I ask because your first post of the thread says you're on 17x9.0's...

03-26-2013, 09:13 PM	#62
Vonsamhain Senior Member Join Date: Jul 2012 Drives: Scion FR-S (Raven) Location: Hayward, CA Posts: 158 Thanks: 18 Thanked 72 Times in 32 Posts Mentioned: 3 Post(s) Tagged: 1 Thread(s)	I don't remember where I read it. But what's your take on front and rear bumper beams? Did you remove those? Do you remember how much each weighed and wether it made much a change in frame rigidity? I thought it was Robispec's car but can't remember. __________________ 2013 Raven FR-S MT + Sparco Assetto 18x8 + Michelinn Pilot Super Sprot 225/40/r18 + Takeda CAI + Fortune Auto 500 coilovers + Tanabe Sustec front and Rear strut tower brace + Carbeau FX1 / 6 point harness / Harness Bar + Nameless front pipe + Perrin cat back + FA20club E85 tune + Wilwood front & rear brakes

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03-03-2013, 06:53 PM	#58
robispec Senior Member Join Date: Oct 2012 Drives: Black frs project Location: Socal Posts: 960 Thanks: 189 Thanked 886 Times in 381 Posts Mentioned: 190 Post(s) Tagged: 1 Thread(s)	I love going fast!

03-26-2013, 02:33 PM	#60
Captain Insano Senior Member Join Date: Sep 2012 Drives: 2014 Jeep Wrangler RubiconX Location: Midwest, USA Posts: 1,282 Thanks: 110 Thanked 292 Times in 224 Posts Mentioned: 7 Post(s) Tagged: 0 Thread(s)	This thread is awesome

03-26-2013, 11:34 PM	#63
robispec Senior Member Join Date: Oct 2012 Drives: Black frs project Location: Socal Posts: 960 Thanks: 189 Thanked 886 Times in 381 Posts Mentioned: 190 Post(s) Tagged: 1 Thread(s)	Pulled both beams no change in stiffness. Speedventures requires that we run at 2508 so we put the beam back in the rear. Robi

03-27-2013, 04:40 AM	#64
Captain Snooze Because compromise ® Join Date: Jan 2012 Drives: Red Herring Location: australia Posts: 7,735 Thanks: 3,999 Thanked 9,376 Times in 4,136 Posts Mentioned: 60 Post(s) Tagged: 0 Thread(s)	Would you please tell me what rear lca and toe adjusters you are using?

03-27-2013, 07:38 AM	#65
robispec Senior Member Join Date: Oct 2012 Drives: Black frs project Location: Socal Posts: 960 Thanks: 189 Thanked 886 Times in 381 Posts Mentioned: 190 Post(s) Tagged: 1 Thread(s)	currently stock.

03-30-2013, 08:26 PM	#68
robispec Senior Member Join Date: Oct 2012 Drives: Black frs project Location: Socal Posts: 960 Thanks: 189 Thanked 886 Times in 381 Posts Mentioned: 190 Post(s) Tagged: 1 Thread(s)	Light weight aluminum beams in the works!

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