Aero and Suspension Tuning With True Type Coilovers

Hotrodz · 07-20-2019, 07:12 PM

Quote:

Originally Posted by Spec Jay

I got it from a guy on instagram, username https://www.instagram.com/n00dler

I definitely have more wing than necessary too, mine is just one slot up from minimum. I need to redo my front splitter to make it protrude 5" and figure out a way to run some splitter diffusers so I can take better advantage of my wing.

https://professionalawesome.com/prod...iffusers-pair/

I like it balanced to have to slight understeer just cause it makes me a little more comfortable getting on the go pedal on corner exit. you may like it since you and I have more than enough power to correct understeer with go pedal haha.

Right now I have a 0.5" of rake. It made a huge difference from when I initially did the aero. Heres a before and after. Granted it's on the front straight but it gives a good visual about how suspension and aero settings work at balancing the car. Wing was set at the middle setting around 10 degrees front had a positive 3 or 4 on the splitterwithout the air dam and zero rake. Was terminally understeer heavy.

Thanks for the compliments!

You can definitely tell the second photo the car is in more neutral stance. You and I are on the same trajectory. I had my splitter custom built and it is 5" it is at 0* and I also run at 0.5" of rake. I need to lower my ride height. The car handled a lot better at 26.5" rear and 26" front. I will be ordering the splitter diffusers from him the next week. He running some number for me right now..

Eagle · 07-21-2019, 04:09 PM

Quote:

Originally Posted by RN SHARK

Not meaning to jack a thread (I've already sub'd to it), but Eagle, who did you order the Ings+1 wing from? I am looking into getting the regular ZPower wing with the taller uprights.

Hey dude! I ordered my wing from Corner 3 Motorsports here in So Cal. Just a fair warning its possible it may be a while before your order gets shipped. I would call/PM John Capati there, he should be able to help you.

Spec Jay · 07-21-2019, 05:04 PM

Quote:

Originally Posted by Hotrodz

You can definitely tell the second photo the car is in more neutral stance. You and I are on the same trajectory. I had my splitter custom built and it is 5" it is at 0* and I also run at 0.5" of rake. I need to lower my ride height. The car handled a lot better at 26.5" rear and 26" front. I will be ordering the splitter diffusers from him the next week. He running some number for me right now..

Did you guys decide on spring rates?

my ride height was solid before I went to the taller Nexen tires. Used to have 3" of clearance with the front splitter. now its closer to 3.75-4 lol.

I want to order them too but realized my oil cooler fittings are going to be in the way I think. I gotta find out how deep the scoops get on the diffusers.

Hotrodz · 07-21-2019, 09:22 PM

Quote:

Originally Posted by Spec Jay

Did you guys decide on spring rates?

my ride height was solid before I went to the taller Nexen tires. Used to have 3" of clearance with the front splitter. now its closer to 3.75-4 lol.

I want to order them too but realized my oil cooler fittings are going to be in the way I think. I gotta find out how deep the scoops get on the diffusers.

Dan has been of vacation so I am hoping to hear something this week. I will let you know how things work out for me. I will probably start on this next month or in September.

3" to 3.5" inches seem to be just about right!

Hotrodz · 07-21-2019, 10:02 PM

This is how mine sitting at ZDAYZ 2018. She was too low. 25" front and 25.5 rear. Oh and Rusty with the photo bomb!

Sent from my SM-G965U using Tapatalk

Spooler · 07-22-2019, 10:32 AM

Final corner balance numbers. She is a hefty girl with the wheels and R888r's. I did notice a difference in power when I
installed the R888r's before I took the car to MA. I also have the DSS pro level axles and they are heavy. Carrying those things around
was a workout. This is with 200lb's in the drivers seat.

LF: 1036 RF: 984

LR: 885 RR: 832

Front%: 51.4%
Rear% : 45.95

Cross weight %: 50.01
total Weight: 3737

Eagle · 07-22-2019, 12:51 PM

Quote:

Originally Posted by Spooler

Final corner balance numbers. She is a hefty girl with the wheels and R888r's. I did notice a difference in power when I
installed the R888r's before I took the car to MA. I also have the DSS pro level axles and they are heavy. Carrying those things around
was a workout. This is with 200lb's in the drivers seat.

LF: 1036 RF: 984

LR: 885 RR: 832

Front%: 51.4%
Rear% : 45.95

Cross weight %: 50.01
total Weight: 3737

Is your rear interior gutted and the spare tire/tools removed? Comparing your sheet to mine, i see a bunch of weight in the rear of your car.

Spooler · 07-22-2019, 03:00 PM

Quote:

Originally Posted by Eagle

Is your rear interior gutted and the spare tire/tools removed? Comparing your sheet to mine, i see a bunch of weight in the rear of your car.

Noop, full interior. I have 100lbs per side on the rear heavier than you. 200lbs or so total. Like I said, those DSS pro level axles are heavy.

Spooler · 07-22-2019, 03:34 PM

By the way. I have my old corner balance data in the cars glove box. When I pick it up I will be able to tell you how much weight I have gained. Things added, SSR wheels, TT kit, axles, diff cooler, etc.

JARblue · 07-22-2019, 03:35 PM

Quote:

Originally Posted by Spooler

By the way. I have my old corner balance data in the cars glove box. When I pick it up I will be able to tell you how much weight I have gained. Things added, SSR wheels, TT kit, axles, diff cooler, etc.

And also how much weight the driver has gained

Spooler · 07-22-2019, 03:49 PM

Quote:

Originally Posted by JARblue

And also how much weight the driver has gained

LOL, 20 lbs.

Hotrodz · 08-09-2019, 08:19 PM

It has been has been a minute since my last post and I want to thank everyone for all their input. Brendan was spot on with his calculations and understanding. I will be going with Hyperco 350 pound springs in the rear and 800 in the front. I would have gone with a 300 pound springs but Hyperco does not make them in a 7" spring 60mm ID. I don't think it will make to much of a difference as adjustments can be made by adding more rear bar or dropping the front spring weight. Always, chasing a better setup. I have my splitter diffusers and they are pretty awesome lol. I will post pictures as things progress.

Spec Jay · 08-24-2019, 10:17 AM

That's what he thought for rates? I was feeling like my rates are too soft with aero and you should be putting more down than I am with the bigger splitter and diffusers. Our rates are almost identical after the rear end math.

Spooler · 08-24-2019, 11:35 AM

Here are my pre-corner balance sheet. This is before the TT kit, OS Giken diff, SSR wheels, Diff cooler, DSS Pro level axles. This is with 180lbs in the drivers seat. I was running the factory Nismo wheels with RE11's 285/35/19 front and 325/30/19 rear.

LF: 988 RF: 941

LR: 814 RR: 772

Front%: 54.8%
Rear% : 45.2%

Cross weight %: 49.9
Total weight: 3515

Here are the after numbers.

LF: 1036 RF: 984

LR: 885 RR: 832

Front%: 51.4%
Rear% : 48.6%

Cross weight %: 50.01
total Weight: 3737

I have gained 222lbs total. My weight has added 20lbs. So the car
has gained 202lbs after all of the modifications. Most of the weight gain is in the back
and that is not a bad thing. This is with full interior both times.

Spooler · 08-24-2019, 11:45 AM

Quote:

Originally Posted by Hotrodz

It has been has been a minute since my last post and I want to thank everyone for all their input. Brendan was spot on with his calculations and understanding. I will be going with Hyperco 350 pound springs in the rear and 800 in the front. I would have gone with a 300 pound springs but Hyperco does not make them in a 7" spring 60mm ID. I don't think it will make to much of a difference as adjustments can be made by adding more rear bar or dropping the front spring weight. Always, chasing a better setup. I have my splitter diffusers and they are pretty awesome lol. I will post pictures as things progress.

I posted a conversion chart in the suspension section for lb/in. to Kg/mm. You may be able to get swift springs in Kg/mm dead on what you need.

07-21-2019, 10:02 PM	#65 (permalink)
Hotrodz Premium Member Join Date: Aug 2012 Location: NW, AZ Posts: 9,330 Drives: 10 Nissan 370z Nismo Rep Power: 2684384	This is how mine sitting at ZDAYZ 2018. She was too low. 25" front and 25.5 rear. Oh and Rusty with the photo bomb! Sent from my SM-G965U using Tapatalk JARblue and Rusty like this. __________________ *Fast Intentions TT Installed and Tuned by Seb at SpecialtyZ 610whp 560tq:\|Fast Intentions 3" TT-TDX*\|SpecialtyZ/Fast Intentions 72 Row Oil Cooler\|SZ 6 Puck Clutch & Flywheel\|3GsCustoms\|Z1\|Wavetrac\|Hotchkis\|Whiteline \|Blitz\|Fortune Auto 500\|Fujimura\|SPL\|H&R\|TK\|TWM\|RPM Rollbar\|Sparco\|Next Level Performance\|TrackSpec\|AeroFlow Dynamics\|Pioneer\|

07-22-2019, 10:32 AM	#66 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 13,502 Drives: 2013 Nismo 370z Rep Power: 2684391	Final corner balance numbers. She is a hefty girl with the wheels and R888r's. I did notice a difference in power when I installed the R888r's before I took the car to MA. I also have the DSS pro level axles and they are heavy. Carrying those things around was a workout. This is with 200lb's in the drivers seat. LF: 1036 RF: 984 LR: 885 RR: 832 Front%: 51.4% Rear% : 45.95 Cross weight %: 50.01 total Weight: 3737 JARblue, Rusty and Hotrodz like this. Last edited by Spooler; 07-22-2019 at 11:02 AM.

07-22-2019, 03:34 PM	#69 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 13,502 Drives: 2013 Nismo 370z Rep Power: 2684391	By the way. I have my old corner balance data in the cars glove box. When I pick it up I will be able to tell you how much weight I have gained. Things added, SSR wheels, TT kit, axles, diff cooler, etc. Elmo370z likes this.

08-09-2019, 08:19 PM	#72 (permalink)
Hotrodz Premium Member Join Date: Aug 2012 Location: NW, AZ Posts: 9,330 Drives: 10 Nissan 370z Nismo Rep Power: 2684384	It has been has been a minute since my last post and I want to thank everyone for all their input. Brendan was spot on with his calculations and understanding. I will be going with Hyperco 350 pound springs in the rear and 800 in the front. I would have gone with a 300 pound springs but Hyperco does not make them in a 7" spring 60mm ID. I don't think it will make to much of a difference as adjustments can be made by adding more rear bar or dropping the front spring weight. Always, chasing a better setup. I have my splitter diffusers and they are pretty awesome lol. I will post pictures as things progress. Spec Jay, Eagle, JARblue and 6 others like this. __________________ *Fast Intentions TT Installed and Tuned by Seb at SpecialtyZ 610whp 560tq:\|Fast Intentions 3" TT-TDX*\|SpecialtyZ/Fast Intentions 72 Row Oil Cooler\|SZ 6 Puck Clutch & Flywheel\|3GsCustoms\|Z1\|Wavetrac\|Hotchkis\|Whiteline \|Blitz\|Fortune Auto 500\|Fujimura\|SPL\|H&R\|TK\|TWM\|RPM Rollbar\|Sparco\|Next Level Performance\|TrackSpec\|AeroFlow Dynamics\|Pioneer\|

08-24-2019, 10:17 AM	#73 (permalink)
Spec Jay A True Z Fanatic Join Date: Apr 2009 Location: Bummerton Posts: 1,510 Drives: MtB 09 370z Rep Power: 18	That's what he thought for rates? I was feeling like my rates are too soft with aero and you should be putting more down than I am with the bigger splitter and diffusers. Our rates are almost identical after the rear end math. Hotrodz likes this. __________________ 09 Monterey Blue Global Time Attack Street Class Build Build Thread:Saber! Instagram:@SpecJay

08-24-2019, 11:35 AM	#74 (permalink)
Spooler A True Z Fanatic Join Date: Jun 2014 Location: Ga Posts: 13,502 Drives: 2013 Nismo 370z Rep Power: 2684391	Here are my pre-corner balance sheet. This is before the TT kit, OS Giken diff, SSR wheels, Diff cooler, DSS Pro level axles. This is with 180lbs in the drivers seat. I was running the factory Nismo wheels with RE11's 285/35/19 front and 325/30/19 rear. LF: 988 RF: 941 LR: 814 RR: 772 Front%: 54.8% Rear% : 45.2% Cross weight %: 49.9 Total weight: 3515 Here are the after numbers. LF: 1036 RF: 984 LR: 885 RR: 832 Front%: 51.4% Rear% : 48.6% Cross weight %: 50.01 total Weight: 3737 I have gained 222lbs total. My weight has added 20lbs. So the car has gained 202lbs after all of the modifications. Most of the weight gain is in the back and that is not a bad thing. This is with full interior both times. Rusty and Hotrodz like this. Last edited by Spooler; 08-24-2019 at 11:40 AM.

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