SCCA STR 370z Progress Thread.... It can be done!

Masterbeatty · 02-17-2015, 07:17 PM

Damn I miss Qualcomm. I used to live across the street so Friday nights and weekends were always fun. Nice driving!

Super Werty · 02-17-2015, 07:51 PM

nice driving indeed! looked like fun!

02-17-2015, 08:08 PM

Damn looks like a hell of a time !!!

redline10000 · 02-18-2015, 07:03 PM

Nice driving Jason.

Bizasuge · 02-20-2015, 09:06 PM

Subscribed. Any insight on your use of Spc vs SPL suspension parts? I'll be installing my Whiteline sway bars shortly.

gomer_110 · 02-20-2015, 09:27 PM

Quote:

Originally Posted by Bizasuge

Subscribed. Any insight on your use of Spc vs SPL suspension parts? I'll be installing my Whiteline sway bars shortly.

SPL parts use spherical bearings which are against the rules in Street, Street Touring, and Street Prepared classes.

14BlackCherry · 03-12-2015, 04:04 PM

Quote:

Originally Posted by gomer_110

SPL parts use spherical bearings which are against the rules in Street, Street Touring, and Street Prepared classes.

End links can be spherical in street class. There's no rules on those. However actual suspension like control arms etc cannot use spherical bushings unless it came from Nissan that way. I use SPL end links in street class.

speedfreek · 03-12-2015, 04:22 PM

Not sure of the rules but maybe you can install some Craftsquare mirrors to help with visibility on the driver side.

gomer_110 · 03-13-2015, 06:44 AM

Quote:

Originally Posted by 14BlackCherry

End links can be spherical in street class. There's no rules on those. However actual suspension like control arms etc cannot use spherical bushings unless it came from Nissan that way. I use SPL end links in street class.

Yes you are correct, I should have been more specific. Actually my SPL end links for up front just showed up a few days ago.

MIKE_STR · 03-12-2015, 07:34 PM

Hey, so... I don't have enough time at the moment to read through your build.

However, I'll share what Ive learned...

You might want softer than 12k rear. The last setup I tried was 14k front / 12k rear and it did make a noticeable difference.

I kept on adding more and more positive camber in the rear. The rear just build soooo much camber upon compression... it's nuts. I'd honestly try -1.5 rear and -3 front.

The brakes are awful. Dont use anything but the stock pads. Every once in awhile (even with stock pads) I'd flat spot all 4 tires. That's my biggest reason for not wanting to campaign the car anymore. I could never figure it out. Sometimes I'd just be trail-braking in and... wham... the front tires lock up and I just flat spotted the crap out of them. That was just so frustrating... and expensive.
I dont think this problem was very common with stock suspension... however, the stiffer the rates... the worse it seemed to be. This cars brakes killed my confidence.

You'll need a full tank of gas or else you'll fuel starve. As you know, the tank is huge.

I modified a set of kine / AmS camber arms and got -3.2 front. That's your best bet.

The car will make 300 whp with just high flow cats and a tune. That's plenty until you've figured out the suspension.

I'm selling a set of bride seat brackets and the modified front camber arms at the moment. just an fyi.

Best of luck! Hopefully they'll move the car to STU where it belongs!

takjak2 · 03-12-2015, 09:51 PM

Quote:

Originally Posted by MIKE_STR

The brakes are awful. Dont use anything but the stock pads. Every once in awhile (even with stock pads) I'd flat spot all 4 tires. That's my biggest reason for not wanting to campaign the car anymore. I could never figure it out. Sometimes I'd just be trail-braking in and... wham... the front tires lock up and I just flat spotted the crap out of them. That was just so frustrating... and expensive.
I dont think this problem was very common with stock suspension... however, the stiffer the rates... the worse it seemed to be. This cars brakes killed my confidence.

You mean the brakes are excellent and the STR [strike]tires[/strike] class arent suitable for the weight of the car.

What happened to your ABS?

MIKE_STR · 03-12-2015, 10:23 PM

Quote:

Originally Posted by takjak2

You mean the brakes are excellent and the STR [strike]tires[/strike] class arent suitable for the weight of the car.

What happened to your ABS?

I'm sure it could be a tire/grip issue. However, the cars dont seem to have this problem in stock trim.

The abs works fine most of the time. Just every once in awhile... randomly, they'd lock. I tried multiple compounds and made sure everything was clean and we'll maintained... no idea what caused it.

Trust me, I did tons of research. Any course that required a brake stomp would make me super timid.

j-rho · 03-31-2015, 11:36 AM

Second place at the ET Pro. Still plenty to do to get the car dialed in, and myself dialed in to it-
SD Tour and ET Pro 2015 « J-Rho's '67 Camaro Z28 STX build

AK370Z · 04-02-2015, 11:34 AM

awesome driving. Balance of the car seems really good. It seems like car has a much better control during over steer vs. street class 370Z.. It seemed like more easy to control vs the snappy oversteer in stock/street form. Can't wait to see how it does next!!!

BryanH · 04-14-2015, 12:09 AM

I think the improved LSD in Jason's car has quite a bit to do with toning down the snap of the oversteer.

02-17-2015, 07:17 PM	#1 (permalink)
Masterbeatty A True Z Fanatic Join Date: May 2012 Location: Whales Vagina Posts: 4,586 Drives: the speed limit... Rep Power: 122868	Damn I miss Qualcomm. I used to live across the street so Friday nights and weekends were always fun. Nice driving! __________________ 2011 MB 6MT Masterbeatty journal

02-17-2015, 07:51 PM	#2 (permalink)
Super Werty Track Member Join Date: Jul 2013 Location: AZ Posts: 668 Drives: '13 Sport Rep Power: 14	nice driving indeed! looked like fun! __________________ The Build

02-18-2015, 07:03 PM	#4 (permalink)
redline10000 Enthusiast Member Join Date: Nov 2012 Location: boston Posts: 265 Drives: 2011 370z sport Rep Power: 13	Nice driving Jason. __________________ AAM Axleback + AAM Midpipe \| K&N Drop in filters \| Eibach Front Sway bar \|Whiteline diff bushing\| Dunlop ZII

03-12-2015, 04:22 PM	#8 (permalink)
speedfreek A True Z Fanatic Join Date: Feb 2012 Location: Huntsville,AL Posts: 1,724 Drives: '12 370Z PW 6sp Rep Power: 19	Not sure of the rules but maybe you can install some Craftsquare mirrors to help with visibility on the driver side. __________________ Tomei\|Berk\|Takeda\|ZSpeed\|Fortune Auto\|Swift\|Eibach\|SPL\|Carbotech\|Motul\|Powertrix\|Stillen\|Aerojacket\|Z1\|Forgestar\|Enkei\|Project Kics\|Nismo Ti\|Llumar speedfreek's journal

03-12-2015, 07:34 PM	#10 (permalink)
MIKE_STR Base Member Join Date: Jun 2013 Location: Draper, UT Posts: 89 Drives: 2009 370z Rep Power: 13	Hey, so... I don't have enough time at the moment to read through your build. However, I'll share what Ive learned... You might want softer than 12k rear. The last setup I tried was 14k front / 12k rear and it did make a noticeable difference. I kept on adding more and more positive camber in the rear. The rear just build soooo much camber upon compression... it's nuts. I'd honestly try -1.5 rear and -3 front. The brakes are awful. Dont use anything but the stock pads. Every once in awhile (even with stock pads) I'd flat spot all 4 tires. That's my biggest reason for not wanting to campaign the car anymore. I could never figure it out. Sometimes I'd just be trail-braking in and... wham... the front tires lock up and I just flat spotted the crap out of them. That was just so frustrating... and expensive. I dont think this problem was very common with stock suspension... however, the stiffer the rates... the worse it seemed to be. This cars brakes killed my confidence. You'll need a full tank of gas or else you'll fuel starve. As you know, the tank is huge. I modified a set of kine / AmS camber arms and got -3.2 front. That's your best bet. The car will make 300 whp with just high flow cats and a tune. That's plenty until you've figured out the suspension. I'm selling a set of bride seat brackets and the modified front camber arms at the moment. just an fyi. Best of luck! Hopefully they'll move the car to STU where it belongs! __________________ Special thanks to BC RACING!

02-17-2015, 08:08 PM	#3 (permalink)
David Parra Guest Posts: n/a	Damn looks like a hell of a time !!!

02-20-2015, 09:06 PM	#5 (permalink)
Bizasuge Base Member Join Date: Mar 2014 Location: Detroit, MI Posts: 84 Drives: 2012 370z Rep Power: 12	Subscribed. Any insight on your use of Spc vs SPL suspension parts? I'll be installing my Whiteline sway bars shortly.

03-31-2015, 11:36 AM	#13 (permalink)
j-rho Base Member Join Date: Jul 2014 Location: San Diego Posts: 154 Drives: 1967 Camaro Z28 Rep Power: 12	Second place at the ET Pro. Still plenty to do to get the car dialed in, and myself dialed in to it- SD Tour and ET Pro 2015 « J-Rho's '67 Camaro Z28 STX build AK370Z, Mandingo, zpower86 and 2 others like this.

04-02-2015, 11:34 AM	#14 (permalink)
AK370Z Administrator Join Date: Sep 2008 Location: NJ Posts: 9,930 Drives: 09 370Z MB Sports M6 Rep Power: 10	awesome driving. Balance of the car seems really good. It seems like car has a much better control during over steer vs. street class 370Z.. It seemed like more easy to control vs the snappy oversteer in stock/street form. Can't wait to see how it does next!!! __________________ The370Z Signature Pictures ll Want to rock our forum decals on your car? Then click here! ll How to Embed YouTube Videos In a Post STOP! (Hammertime) ll Become a Premium Member Click HERE ll F.A.Q. Are You a Nissan Dealer? Click Here to Become A "Supporting Dealer" and Start Listing Your 370Zs In Our Inventory Section My Monterey Blue Z ll My Exhaust --> My Intake --> G3 Nissan's Official Response Regarding Oil Temp Issue: CLICK HERE Need a Set of Cheap Winter wheels /Tires? Then Visit The Banner Link Below and Place Your Order. You'll Help Keep The370Z Alive.

04-14-2015, 12:09 AM	#15 (permalink)
BryanH Base Member Join Date: Jun 2012 Location: California Posts: 5 Drives: NISMO 370Z RC Rep Power: 14	I think the improved LSD in Jason's car has quite a bit to do with toning down the snap of the oversteer.

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