Merli's R32 Track Bitch

[AtomicBomberMan]

cerbera, thats REALLY interesting! very informative! i had to read it a few times before it sank in though. could you draw the pics? how is it that you know so much and in so much detail? you teach it?

[Merli]

Verrrrrrrry interesting discussion!

I'm going to have to start brushing up on my aerodynamic principles I think!

[Roy]

Engineering lectures were only fun when you could visualise concepts and apply them to cars

Seriously, rather then getting caught up in the physics of it, grab a dedicated text specific to race car aero which simplifies the physics using good empirical data and common practices to get you close quickly.

But agree 100% with Cerbera, you need to try and reduce lift at high speed, and then use the basic and obvious stuff on the top side of the car to try and give you a little downforce. By reducing the lift you can get the same amount of downforce without enar the drag that really hurts the cars acceleration over 230km/h.

Trying to get downforce using under car aero is going to send you broke

[SimonR32]

Engineering lectures were only fun when you could visualise concepts and apply them to cars

dammit, if only i had thought of this i probably wouldnt have dropped engineering at uni... god it was boring

But agree 100% with Cerbera

of course you do!!!

great minds think alike, hense our love for rb20's

Edited June 6, 2009 by Cerbera

[Roy]

dammit, if only i had thought of this i probably wouldnt have dropped engineering at uni... god it was boring

Hey, if i had of dropped out i would never have had the opportunirty to be working in India....oh, yeh, maybe i should have dropped out too

And yes, all the fashionable people these days love RB20s, cant wait until my new motor is finished...will wipe the smiles of all the faces of those that said RB20s sucked

[Duncan]

wow those pics of the mspeed car are extremely interesting. in fact it really isn't that far from standard as we may have all expected. Yes its got custom upper arms and centrelock hubs but other than that the geometery is not that different. certainly much more standard that the one brad is about to embark on.

next time someone is under there we need you to get under the car and take pics of the chasis side mounts for the lowre control arms, the upper are pretty straight forward. And we need a pic of the inner end of the rear upper and lower arms too. do it for the internet!

Now, back to what you are allowed to do....

flares up to 100mm wider per side over the front and rear wheels

splitter (push air over the car) or air dam (keep air out from under the car) up to 100mm forward from the original front bar lower lip

undertray can extend back to leading edge of front tyres (so the ones posted above are not strictly legal, and nor is John's)

rear spoiler up to 200mm high and the width of the car (spoilers have relatively high drag)

or rear wing 500mm high, up to 100mm of the back of the car, 400mm deep, no more than 2 elements, max 1600mm wide

rear diffuser extend back 100mm

spaceframe cars (not gtr) can have flat floor between a pillar and c piller

none of this will matter unless you intend to do full racing - no-one will worry about it at a supersprint or similar

for a basic overview of aero try: http://www.autospeed.com.au/cms/A_107773/article.html

[Merli]

Oooooooooookay

Time for some photo updates

Here are the details from Beer Biatch's spy shots...

[Merli]

First up... Some Cusco swaybars, and a tension rod brace.

[Merli]

Now, for the pretty gold Ikeya Foruma bits!

Tie Rod Ends:

Traction Rods:

[Merli]

Front Lower Control Arms!

[Merli]

.....aaaaaaaaand the Rear Lower Control Arms!

[Merli]

All going to plan, these should be on by the end of the week, and I should have some nice brakes to post up too

[Majanal]

Oooooooooookay

Time for some photo updates

Here are the details from Beer Biatch's spy shots...

How cool, Ikeya Formula make boxes just like the Dutch Dolls...

EDIT:

Hang on... nope, they have bits in them... thought that this was Fatz's thread...

[fatz]

nice!

[Beer Baron]

yummy!

the ikeya front LCA's are a piece of gear! it's hard to capture in photos how nice they are, and how different compared to stock. you should get a photo of one next to a stock LCA and castor rod for scale.

[Majanal]

Yeah, I agree, comparison pic's a must I think...

But I'm very Jelous... indeed. Good way to spend a few $k

[fatz]

your cash burning ability is awsome

wjhat you doing with the old arms?

[Merli]

Yup... My party fund is pretty much all but depleted now.

I'm going to have to hold off on the whiz-bang suspension for a few months I think.

Old arms will be sitting in a box in my garage... What did you want?

[benm]

Got a lot to do for Friday

[fatz]

just wanted a set of arms i could put some nice bushes in