Modifications vs Lap Times

osbornsm · 09-15-2014, 11:51 AM

I am looking for suggestions to list mods which help the lap time of the car, not the distance from the ground.

So if you have faster times after modding... let us know what is effective!*
- Sways
- Coils
- Brake Kit
- LSD
*Note: This is BESIDES adding forced induction to the car (just for reference).

GO!

osbornsm · 09-15-2014, 11:52 AM

This is also excluding the loose nut behind the wheel... I'm working on my HPDE practice

Mitco39 · 09-15-2014, 11:57 AM

What you do to your car depends on what class of HPDE your looking to be a part of I would imagine. Anything that gets you lower, increases traction, and lowers your weight will help your times.

I think one of the biggest things you can do is get an aggressive racing seat to hold you in the car around the turns.

kenchan · 09-15-2014, 11:58 AM

Quote:

Originally Posted by Mitco39

I think one of the biggest things you can do is get driving lessons.

fixed

Mitco39 · 09-15-2014, 12:20 PM

Quote:

Originally Posted by kenchan

fixed

lol I forgot not everyone drives like me

hahaha

kenchan · 09-15-2014, 12:26 PM

Quote:

Originally Posted by Mitco39

lol I forgot not everyone drives like me

hahaha

0101 · 09-15-2014, 12:39 PM

I've only had my Z for a few weeks and no track time in it yet.
That said, it seems like spring rate would be the first thing I would change after the saftey stuff that you've already done(oil cooler, brake ducting, etc).
The car handles great, but there is some body movement that heavy springs would help with.

kenchan · 09-15-2014, 12:42 PM

front swaybar first.

actually, driver first, then tires, then front swaybar.

2011 Nismo#91 · 09-15-2014, 01:57 PM

Yep driver, tires, CJM fuel starve fix, test pipes, CAI, remove interior :0

damian_mb · 09-15-2014, 02:04 PM

Driver mod > car mods

Once you have driver mod down, then car mod.

2 Nismo's at Brainerd, one ran high 14's and one was 15's.......Granted this wasn't HPDE but you get the point.

JWillis72 · 09-15-2014, 02:45 PM

does your car have a factory LSD? Mine didn't and I didn't realize it until it about stuck the car in the wall.

Masterbeatty · 09-15-2014, 03:50 PM

Driver-tires-seat time- then you will know what to get. For me it was driver, tires, coils and LSD, diff bushing. Next is wider wheels and better tires and maybe aero...maybe.

I almost forgot, performance brake and clutch fluid. I boiled my brake fluid my first auto cross completely stock.

osbornsm · 09-16-2014, 11:56 AM

We already have a Track Day best practices thread.

THIS THREAD... is for mods that have helped your times.

Whacha got?!

kenchan · 09-16-2014, 12:54 PM

bad news

JWillis72 · 09-16-2014, 01:49 PM

I can't give you times but I would think wider softer tires and sway bars would be at the top of the list. The Hotchkis sway bars helped my cars cornering a lot.

09-15-2014, 11:51 AM	#1 (permalink)
osbornsm A True Z Fanatic Join Date: Jun 2011 Location: WHAT Posts: 2,551 Drives: 2018 Camaro SS 1LE Rep Power: 424	Modifications vs Lap Times I am looking for suggestions to list mods which help the lap time of the car, not the distance from the ground. So if you have faster times after modding... let us know what is effective!* - Sways - Coils - Brake Kit - LSD Note: This is BESIDES adding forced induction to the car (just for reference). GO! __________________ 2018 Camaro SS 1LE* (455hp) - 2011 Nissan 370z (333hp) - 2004 VW R32 (240hp) - 2000 Civic Si (160hp)

09-15-2014, 11:57 AM	#3 (permalink)
Mitco39 A True Z Fanatic Join Date: Aug 2012 Location: Edmonton Alberta Canada Posts: 2,089 Drives: 40th 370z Rep Power: 132	What you do to your car depends on what class of HPDE your looking to be a part of I would imagine. Anything that gets you lower, increases traction, and lowers your weight will help your times. I think one of the biggest things you can do is get an aggressive racing seat to hold you in the car around the turns. __________________ 2007 Chevy Duramax - EFILive Tuned By Me 2010 40th W/ Nav - Boosted Performance - UpRev Tuned By Me The Mrs. Ride -2012 335XI N55 BMW - Cobb Tuned By Me, Built by her My Build --> http://www.the370z.com/members-370z-...39s-build.html

09-15-2014, 12:39 PM	#7 (permalink)
0101 Base Member Join Date: Dec 2013 Location: Stockholm, Germany Posts: 95 Drives: N/A Rep Power: 12	I've only had my Z for a few weeks and no track time in it yet. That said, it seems like spring rate would be the first thing I would change after the saftey stuff that you've already done(oil cooler, brake ducting, etc). The car handles great, but there is some body movement that heavy springs would help with. UNKNOWN_370 likes this.

09-15-2014, 12:42 PM	#8 (permalink)
kenchan A True Z Fanatic Join Date: Aug 2009 Location: N/A Posts: 76,801 Drives: N/A Rep Power: 141521	front swaybar first. actually, driver first, then tires, then front swaybar. UNKNOWN_370, dP3NGU1N, Masterbeatty and 2 others like this.

09-15-2014, 03:50 PM	#12 (permalink)
Masterbeatty A True Z Fanatic Join Date: May 2012 Location: Whales Vagina Posts: 4,586 Drives: the speed limit... Rep Power: 122867	Driver-tires-seat time- then you will know what to get. For me it was driver, tires, coils and LSD, diff bushing. Next is wider wheels and better tires and maybe aero...maybe. I almost forgot, performance brake and clutch fluid. I boiled my brake fluid my first auto cross completely stock. __________________ 2011 MB 6MT Masterbeatty journal

09-15-2014, 11:52 AM	#2 (permalink)
osbornsm A True Z Fanatic Join Date: Jun 2011 Location: WHAT Posts: 2,551 Drives: 2018 Camaro SS 1LE Rep Power: 424	This is also excluding the loose nut behind the wheel... I'm working on my HPDE practice

09-15-2014, 01:57 PM	#9 (permalink)
2011 Nismo#91 A True Z Fanatic Join Date: Mar 2011 Location: NJ Posts: 2,401 Drives: slowly Rep Power: 40569	Yep driver, tires, CJM fuel starve fix, test pipes, CAI, remove interior :0

09-15-2014, 02:04 PM	#10 (permalink)
damian_mb Base Member Join Date: Jul 2013 Location: MN Posts: 213 Drives: 12 370z / 13 WRX Rep Power: 12	Driver mod > car mods Once you have driver mod down, then car mod. 2 Nismo's at Brainerd, one ran high 14's and one was 15's.......Granted this wasn't HPDE but you get the point.

09-15-2014, 02:45 PM	#11 (permalink)
JWillis72 A True Z Fanatic Join Date: Sep 2013 Location: Fort Myers FL Posts: 2,002 Drives: 2009 370Z yellow 7AT Rep Power: 45	does your car have a factory LSD? Mine didn't and I didn't realize it until it about stuck the car in the wall.

09-16-2014, 11:56 AM	#13 (permalink)
osbornsm A True Z Fanatic Join Date: Jun 2011 Location: WHAT Posts: 2,551 Drives: 2018 Camaro SS 1LE Rep Power: 424	We already have a Track Day best practices thread. THIS THREAD... is for mods that have helped your times. Whacha got?! __________________ 2018 Camaro SS 1LE (455hp) - 2011 Nissan 370z (333hp) - 2004 VW R32 (240hp) - 2000 Civic Si (160hp)

09-16-2014, 12:54 PM	#14 (permalink)
kenchan A True Z Fanatic Join Date: Aug 2009 Location: N/A Posts: 76,801 Drives: N/A Rep Power: 141521	bad news JWillis72 likes this.

09-16-2014, 01:49 PM	#15 (permalink)
JWillis72 A True Z Fanatic Join Date: Sep 2013 Location: Fort Myers FL Posts: 2,002 Drives: 2009 370Z yellow 7AT Rep Power: 45	I can't give you times but I would think wider softer tires and sway bars would be at the top of the list. The Hotchkis sway bars helped my cars cornering a lot.

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