Road Race setup/ Track pics

[Def]

Originally Posted by codyace

It was in regard to the comrpession and rebound of the car mainly, it's not
6 clicks up front/1.5 turns (8611 in front)
.5 turn out back (8610 in rear)

Aside from that NJMP is a great track. I wish I was running more power and had no wastegate issues as my car is honestly geared nearly perfect for the track.

Alignment:

Alginment wise (c&p from NRR)
Front:
-2.5/3* camber,
0 toe
7.5-8* caster (math and turn plates my have been a little off)
Rear:
-2* camber
1/16 toe in
Trac rod IIRC is 8.25 or 8.5 I can't recall.

Run more front camber, our cars NEED it. I'm at -3.5 deg and probably going to go a little more next time I put it on the rack. I'm at -1.6 deg in the rear, and I might run a hair more like -1.8 deg. The rear end generally feels pretty hooked up though.

A few pics, sorry for no hotlinking, don't feeling like saving a pic. More camber = more grip = more weight transfer = looks way more baller in track pics.

Nevermind the super dead grass - only 1 grass fire last event!

Hart Photography & Graphics > Instructor Group - Set 2

Chasing Modded Exige (notice weight transfer on inside tires):

Hart Photography & Graphics > Instructor Group - Set 1

Passed Exige (he later spun trying to keep up with me):

Hart Photography & Graphics > Instructor Group - Set 1


Little Dorifto:

Hart Photography & Graphics > Instructor Group - Set 1

[codyace]

I've felt the car needs more camber, however on Street Tires (NT-05's) I wonder if it's worhwhile. I'll try that for the next event.

Iv'e got Pocono North, Lime Rock, Watkins in a month, so i'll have time

[SicBastard]

Def those pics are awesome! That's some serious aero. How much lap time do you think you're dropping with the wing+splitter?

[Def]

Originally Posted by SicBastard

Def those pics are awesome! That's some serious aero. How much lap time do you think you're dropping with the wing+splitter?

They were worth about 2-2.5 secs a lap on a ~90 sec lap (1.7 mi track, so average speed is ~70 mph.

[Def]

Originally Posted by codyace

I've felt the car needs more camber, however on Street Tires (NT-05's) I wonder if it's worhwhile. I'll try that for the next event.

Iv'e got Pocono North, Lime Rock, Watkins in a month, so i'll have time

I ran about -2.7 with NT-05s and wear was pretty even, but I think they wanted more and would have been faster.

[codyace]

Originally Posted by Def

I ran about -2.7 with NT-05s and wear was pretty even, but I think they wanted more and would have been faster.

That's about where I'm at now, I'm awaiting my own Camber/Caster gauge this week to recheck. i think I may be closer to 3, but can't remember if I had it exact with the old setup I used (which is why I have -2.5 to -3 approx)

I'll say this, I certainly see more wear in the back with that marginal toe in than I ever have with camber. Sure it's obvious but it's crazy to the difference.

[Def]

My rears wear very very evenly. My fronts still wear the outside a little bit much. The NT05s have stiff sidewalls though, so it seems to help with the outer tread wear up front. RA-1s are like sticky marshmellows, lots of roll, movement - but you can do the stupidest stuff and you won't lose it. Very very broad plateau of grip vs. slip angle.

[jrifta_status]

old arse thread yo

[slider2828]

Originally Posted by Mesarina

Thanks, I think it's getting straighter than before lol, your car has been an inspiration for me, nice work!

Hahah Really? There is a lot better things coming in 2012 now that I finally getting some finances straight.

New Engine (Think I spun a rod.)
Rocket Bunny 6666 Kit
New Rims and Tires and 5 Lug
Rig up a Fuel Surge Tank
Get a Crashbar up front to better secure the splitter
Fix up the rear end cause it clunks a little cause of a burr on the ring gear some where
Paint Job too hahaha.... it will be a fun year!

How are you doing?

[Tbone240]

As far as LSDs go, I heard a 1.5 is much better for road racing then 2 way. Has anyone tried out both? What were your personal experiences?

[Fresh2Death]

2 way is better if you are more agressive. if you like to drive it in hard, go 2 way, if you like to roll it in straight as an arrow, go 1.5way

[Tbone240]

Thanks for the reply, I just bought a kaaz 2 way but people were telling me that it will break loose too easy on entrance, as I'm not drifting this has kind of made me hesitate to install. But I was thinking proper rev matching via heel toe on downshifts should not disturb the grip levels too much...I do drive really aggressive so what your saying makes me want to install tonight!

[RAMM]

WANGTOBER FEST 2011 at Gingerman Raceway


Sorry I don't post on here much

[RAMM]

[slider2828]

Originally Posted by Tbone240

Thanks for the reply, I just bought a kaaz 2 way but people were telling me that it will break loose too easy on entrance, as I'm not drifting this has kind of made me hesitate to install. But I was thinking proper rev matching via heel toe on downshifts should not disturb the grip levels too much...I do drive really aggressive so what your saying makes me want to install tonight!

Its about initial turn in. 2 Ways have a tendency to understeer and snap oversteer when applied throttle. Now depends on torque settings on the 2-way as well. I ran a welded then a vlsd and then hlsd is definitely better

[Mesarina]

Originally Posted by slider2828

Hahah Really? There is a lot better things coming in 2012 now that I finally getting some finances straight.

New Engine (Think I spun a rod.)
Rocket Bunny 6666 Kit
New Rims and Tires and 5 Lug
Rig up a Fuel Surge Tank
Get a Crashbar up front to better secure the splitter
Fix up the rear end cause it clunks a little cause of a burr on the ring gear some where
Paint Job too hahaha.... it will be a fun year!

How are you doing?

I just got my 180sx repaired, had a bad crash this year



The rollcage helped a lot, now it looks better than before, I want to paint all the car now Bought MB Battles 17x9.5, I want to put some direzzas star spec or nitto nt05 245 and 255 in there because of rules (180 min. treadwear) Installed tein camber plates (my tanabe coilovers didn't came with them)



just bought a braille 15lbs battery too, peak performance outers and tein inners



and got an aligment

[slider2828]

LOL nice, what coilovers are those?

[SicBastard]

Originally Posted by slider2828

Its about initial turn in. 2 Ways have a tendency to understeer and snap oversteer when applied throttle. Now depends on torque settings on the 2-way as well. I ran a welded then a vlsd and then hlsd is definitely better

Running a 2way on a grip car is just silly. Why on earth would you want your rear tires trying to keep the car going straight as you're entering a turn?! The only reason to run a 2 way is if it's adjustable and you can dial OUT all of the decel lock-up, or if you're drifting and the tires are constantly accelerating at all points in a turn. 2 ways help the drifters initiate, and help with predictability mid drift. If you're not drifting, don't install the 2 way, and don't weld your diff.

[Seraphim38]

So are you saying that removing the kaaz 1.5 from my autox s13 and installing a stock diff would increase rear grip in and out of corners?

[SicBastard]

A 1.5 is hard to say, because the .5 basically means that it is half way trying to make you go straight on decel. So yes, a stock S15 diff would definitely increase your grip on corner entry, but I doubt it would on corner exit.

[e1_griego]

No, keep your 1.5.

The helical will pegleg at autox and it's annoying. Even if it's not opening up and spinning one tire, it's always transferring power back and forth and it's not 100% predictable. I love helicals, but I much prefer a clutch type for autox because of how consistent they are and how they dig out of corners -- and of course no spinning of the inside tire.

[codyace]

1.5 is really the way to fly, and the best compromise of the options. I'd love a true mechanical diff like an Eaton Tru Track, but that isn't happening.

[STR8E180]

im working on a splitter at the moment

its more work then i first thought
just need to make the mounting bracing/brackets

[Mr. Camshaft]

Will you be adding a wing or diffuser to offset the increase in downforce at the front?

[STR8E180]

Originally Posted by Mr. Camshaft

Will you be adding a wing or diffuser to offset the increase in downforce at the front?

yeah its already got a wing


im also planing on covering back to the standard rear bar and adding a diffuser

the boot has also be reinforced to transfer the down force to the chassis

[Conrad 2NR]

Care to show pics of how the lift-gate was re-inforced?

Damn, down under does it HARD!

[slider2828]

You mean the rear hatch? You don't need to reinforce cause its a piece of metal, but if it was a CF hatch it would need to go to the actual chassis.

I thought STR8E180 was in the US then I would ask where the heck did he get the aluminite! I can't find it.... .unless someone knows.

[Conrad 2NR]

Wouldn't the additional downforce generated by the wing cause the hatch to flex and not make full use?

I asked because I saw where he said...

"the boot has also be reinforced to transfer the down force to the chassis"



I love the entire setup on that car except for the front splitter but Function>Form.

SR20VET FTW!

[word sux]

I am going to be building up a spec e30 soon =D

[codyace]

Originally Posted by slider2828

I thought STR8E180 was in the US then I would ask where the heck did he get the aluminite! I can't find it.... .unless someone knows.

You can get it from most sign shop vendors. I've used it when making signs for people. Nice stuff, little pricey though. I think it was nearly double the cost of plywood for the same size sheet, but I also bought mine in red for the sign

And FWIW: It's Alumalite

Quick Random Google result: Alumalite | Alumalite Panel | Alumalite Sign Board | Laminators Inc.