Rowdy

no dramas cheers mate. you don't know a good jap wrecker do you?

Hi mate I know im bumping an old thread here but I am after a rear seat and trims, the parcel shelf and the carpet. do you have these parts left? cheers, Rowdy.

how come you didn't just remove the aircon and leave the stock demister fan etc? I removed my aircon- everything under the hood, and the core from the aircon box under the dash- but kept the fan setup. so basically in the cabin everything stays the same bar the removed aircon heat exchanger. also I think it may be beneficial to have some cool air blowing on you while you are racing in summer.

If you don't get it, you don't get it. A grown man can eat a chicken sandwich and drive an RB20, whether it be because he is self loathing or just has a 2000cc 6cyl fetish. Rb20 power!

dude... where are you located, what are your contact details.

Wont be making the trip this year to cheer you on/crowd your pit area due to the new job, so good luck!

well after moving to perth and towing my R32 gtst behind my 2002 holden rodeo with 3.2 V6 manual petrol, i can catagoricaly state that it is not a great tow vehicle. it got 300k's to a tank, and with a strong headwind at one point about 250k's. it worked out to almost 20L/100kms. Probably not to bad for towing to the local racetrack, but shithouse over long distance. technicaly it is overweight by a couple of hundred kilo, as the rodeo is only rated to 1800 kg's. Its a great car in a lot of other ways, and im not going to get rid of it, but i wont be towing the 'line very far purely because it costs too much.

come on guys, this shizz is too good to throw down the tip. make some offers. even if you dont want this stuff, buy it to save on landfill.

G'day guys and girls, I have a few pieces that ive picked up here and there that must go. i am moving house so im having a bit of a clean out. 1. I have for sale a whole air con system, including pump, condensor and heat exchanger plus all lines. all in good nick, just been sitting around for maybe a year. dont know what theyre worth, or why you would want aircon. call it $50 2. old alternator. was starting to get a bit low on volts so i replaced it. dont know why youd want it or why i have kept it. $10 3. Passenger seat from r32gtst. good condition, no rips or tears. $25 4. fibreglass GTR wing. i got this with the car, the bloke before me had knocked off his old wing backing into a boat prop, and never got around to fitting this one. at the moment it looks like its primed black and in good condition. $50 items located in crib point victoria. gimme a call on 0423 487 159 Cheers, Rowdy.

looks cool mate. so your device would modify the pulse width a certain amount over the stock pulse width? i.e. your device doesnt simply control pulse width based on the airflow, it would still be taking into account teperatures, load, etc. because its base line is coming from the computers pulse width?

in geelong = stolen

well if mohsen wants the drivers, i want the passengers... depending how bad the bolt hole problem is

haha true. There was a generic bok choi T3-4 hybrid shitheap bastard of a turbo on my rb20 when i bought it. it lasted about 10,000K all up (including the time spent in the car before i bought it) before the oil seal let go. It was crap. my 2c. Rowdy.

pics of the car front on show just how big that wing really is g/l this weekend!

out of interest, what size rear sway bars are you guys using?

haha! I've got one of those, you know it actually turned out to be cheaper to have one than be single and hit the pub every other night ... plus i love her, of course Anyway sure thing. basically i need the upper surface area of your wing... so length times width. and a couple of good photos so i can approximate what shape the wing is... really what needs doing, to be accurate, is to measure the chord length, nose radius, maximum thickness, camber of the curve etc. etc., then you can work out exactly what wing shape you have and use the proper lift coefficients. but approximating is so much easier =P im feeling a bit zombified at the moment, just finished a 128hr 10 day week. but thats what i can remember at the moment. cheers, Rowdy. p.s. Roy be nice!

hazzaaa! wins the race AND the championship on his birthday. what a day

oh damn. tottaly got the gurney flap and the slotted flap mixed up haha sorry, slotted flaps inject momentum, gurney flaps alter the pressure difference. how embarrassing! my calculations above where for slotted flapps (of which my wing is a sloted type). cheers, Rowdy.

Hey mate, your question is a difficult one, because i dont know where the flow separation over the car occurs. if it occurs just past the roofline, it is possible that any wing mounted low and forward would be located in a turbulent area. Wings are generally mounted high and to the rear because of this, i would think. high wings mounted to the rear would take advantage of free stream velocity, or air least affected by the cars movement. as you can see from the calculations above, the drag force was far far below the down force... now admittedly my calculations are not 100%, its just basic aerodynamics stuff, 2D calculations and all that. the formula for lift, L, is L=.5X(Cl)X(density)X(Velocity squared)X(Area). the formula for drag, D, is D=.5X(Cd)X(density)X(Velocity squared)X(area) Where the force is in newtons, density is in Kg/Mcubed, velocity is in m/s and area is in msquared and is the planform area of the wings surface (not the total surface area). The hardest part to find is the specific Cl and Cd for your specific wing shape, where Cl and Cd are the coefficient of lift and drag, respectively. anyway i'd say mount it high and back. as for efficiency, if the wing is too effective at providing downforce in this position you can alter the angle of attack to be more shallow. cheers, Rowdy.

Hey guys. sorry to dredge a thread (though its proabably about time for an update russ!) but ive been doing a lot of aerodynamics study at uni and i remembered reading about gurney flaps here in this thread... I thought it might be of some interest to a few guys if i posted what ive found. There are a number of airfoil shapes out there, and each has its own specific lift and drag characteristics dependant on angle of attack. A graph i have infront of me right now relates a NACA 23012 airfoil characteristics for instance. It gives values for lift dependant on angle of attack for clean, slotted, or double slotted flaps. The coefficient of lift for the clean airfoil, i.e. no flaps is 1.52 @ ~15degrees. The coefficient of lift for a single slotted airfoil, i.e. one flap, is 2.67 @ ~12.5 degrees. so you get an increase in the coeficient of lift of 1.15 for adding one measly little flap. The flap helps by increasing projected area and injecting momentum into the boundary layers of fluid on the opposite side of the airfoil, which delays separation at any given angle of attack. now the trade off is drag. the drag coefficient is ~.06 for the clean airfoil, while it is ~.12 for the slotted airfoil. i fired up my trusty Ti-83 for a bit of a laugh and plugged in the numbers for my rear wing (which incidentaly is russ's old wing) and got some interesting figures. down force at 100km/h was 390N, or 40kg. The drag at this speed was 18.3N, which equated to about .5Kw power loss. down force at 180km/h was 1263N, or 128kg. the drag at this speed was 59.1N, which equated to almost 3Kw power loss. For the same speed, 180km/h, a clean airfoil will produce only 719N of downforce but will only have 28.4N drag force acting on it, or a loss of 1.4Kw. however these figures are unrealistic because i need to find out what kind of airfoil shape my wing has, and then find the relevant data for that shape. also this is a 2D analysis. still interesting, and the relative differance between an airfoil with and without slotted flaps is clear to see. anyway, hope this helps/interests someone.

i've never bought auto action before, but i bought a copy on your reccomendation- it was a good read! i found it very amusing they where considering running the gtr as a rwd or on 5 1/2" rims to try and achieve some parity haha on the other hand, reading about group A made todays race at bathurst very boring.

your horse is amazing! lol. i dont suppose youve snapped any pics of the 'christmas tree'? I remember reading an article somewhere a while back about rb oil control issues, and the author more or less thought it was a product of poor engine rebuilding practices. Apparently the builder would remove the mesh that was supposedly in the factory cam cover baffles, lest the engine lunch itself and the mesh trapped any grit coming its way, then subsequently released it once the motor was rebuilt again. removing the mesh allowed the oil to make its way out of the motor, and thats why all these catch returns have come about. i remember readng it at the time thinking surely this cant be the case with every rb that has oil control issues, because theres a damn lot of them. anyway, this thread is a great read. congratulations on everything!

This sounds like a great idea. A database of dedicated product reviews would be a much better resource for someone researching theyre next mod rather than searching thousands of old threads for simmilar information. A standardised template is also a good idea. count me in

hmm. i just bought a set of HEL lines... why have you pulled yours off?

bushes