Making BNR32 race ready?

[Bugsly17]

hey guys, i am gonna be doing some track racing this year, and need to ensure my gtr is up to the task. nothing too serious, and the restrictions on the cars are basically non existant. there must be some people on here who have experience.

I've got this list so far...

-new wheels/tires
-bigger radiator
my brakes are still good, so i think i should be good without changin any brake stuff. have about 80% left.
-Stainless brake lines
-n1 bumper vents(more for looks i guess, but any extra flow is good.
-Ducting straight to turbo intakes
-front brake ducting
-oil cooler setup


i already have the car setup so it can breathe, with full intake and exhaust setup, and n1 turbos, and all metal piping. a few upgrades are needed as well, in the peppy department.

-boost controller
-n1 water pump (already have)
-new timing belt(already have)
what about the pulleys for timing belt? ive heard the bearing develop play over time. and it good to rpelace these as well, while im in there.

-bigger injectors
-some sort of tuning system(i have NO IDEA where to go with this)

if anyone has anything to add as far as keeping it running cool and smooth?

[CanadianGTR]

http://www.summitracing.com/parts/SUM-G1438/
Good peace of mind if you don't have an upgraded oil pump
(you can get ones with higher PSI cut-offs)

Annnnd if you get really creative you could even wire one of these up to cut power to your boost controller if you don't have enough fuel pressure (ie: your tank sloshes and you don't want to detonate under 14lbs of boost).

[frankiman]

i think your thiking too much about power and engine
sounds like your going to a drag strip and not a race track

1. wheels and tires, very very important choice to make here
chose what kind of tires you want to run, around 200 thread wear and bellow is a safe bet

if your thinking about going with very large tires (ie 275+) you might have to run 18'' wheels since not alot of tires are made that wide in 17''

if you can, try going with 17'' wheels, as large as possible (9''+) so you can fit whatever width tires you can get your hands on

and 17'' rims are lighter and have a much lower moment of inertia, which greatly reduces overall weight of the car
and they are often cheaper too

and i've been told by experts that the best tire profile to use for racing is between 40 and 50 (based on the tire's deflection while cornering, 40~50 provides best grip/feel/reaction speed ratio overall), if you go with 18'' wheels you'll probly get stuck with 30 or 35 profile tires

2. brakes, if you think having power is important around a track, well think again, brakes is the most important aspect
even if your brakes are still 80% good, it doesn't mean anything

you have to remember the GTR is a heavy beast to slow down, and it requires alot of energy
with a oem setup you won't brake well at high speeds, the brakes will start to fade within 4 laps, and will be completely overheated after 8~9 laps

get brake pads that have a track-ready compound, not oem, not street

get stainless steel braided lines, so that they are much less at risk from blowing up under high heat and pressure, and won't expand under high heat which makes for a mushy feeling brake pedal

get high boiling point brake fluid, anything dot4 and over, like ATE Blue, or Motul RBF660, these fluids can absorb much more energy, which takes alot more time to fade

3. suspension, you don't say anything about your setup,
at least get some adjustable RUCA and tension rods,
and get a proper alignment done anyway you go


thats just me, but i'm a bit hardcore about track/street setups, very dilligent about every aspects

you can always refer to this section for more info
http://forums.gtrcanada.com/gt-r-tec...ase-49559.html

[Bugsly17]

Everything you mention makes sense. I am also serious about my vehicle performing. And am at school for automotive service tehnician so I do know the ropes when it comes to alot of things.

So the list grows...
Track ready pads/rotors
High temp brake fluid

ad I'm pretty damn good with alignment, I've done hundreds! Any adjustments to the specs? Or will oem specs work fine



And as far as my suspension, it's basically stock except for crappy apexi coilovers. My suspension parts are worn in the front so I have new tierods ready for the front, and am looking for aftermarket fucas. Rucas too?

Franki. I dunno if you have man but I've followed your build thread from the beginning. Maybe we can chat on msn in more detail about this stuff.

[frankiman]

no prob add me anytime; frankiman@hotmail.com

also, check your inner and outer front ball joints, they will get abused on the track, make sure yours are a-ok

spec alignment will work, but you can always be a little more agressive without compromising any driveability/wear-ability
add a bit more camber (more negative camber) with rear and front UCA, fronts are a bit expensive and not really necessary though, unless you are very serious
and increase front caster too with adj tension rods

[Bugsly17]

Yeah, well you caN get quite a bit of adjustment with oem or nismo. A little extra on both sides should be reachable without super adjustable ones. I'll add you.

[CanadianGTR]

Corner balance will work wonders.

[Bugsly17]

CAn you eLaborate?

[frankiman]

not cheap
http://www.montrealracing.com/forums...d.php?t=689612

[Opus]

If you want to race, first thing you have to do is read the rule book of the series you want to compete in. Sometimes mods which seem pretty benign render a car into a class which maybe you might not be ready for. Reliablity will be your first concern. Check all of your stock components and make sure they're safe. Don't think of any power mods untill you can be sure that your car doesn't overheat and maintains oil pressure through a sweeper. Next go for brakes and tires followed by suspension improvements. Just these mods can bankrupt most people. Don't buy inexpensive parts so you can afford to do more mods. You will regret it. It's very easy to get caught up in all of the details which die hards rely on. If you take small steps it will be an enjoyable experience. Keep it as simple as you can. As you are still in school you probably are keeping to a budget. Try autocross to start as the sessions are short and the lessons learned are good at any speed. Last year I spent more on race expenses (gas, food, lodging, entry fees, tires ETC) than most Skylines are worth. Don't ask me how much... my wife reads my threads. Keep it on the track.. cheers