waaa....bro,u talk until F1 ar???well,what u said is true bro but we'renot to question your opinion, brother. but those grammes, they really add up to quite a lot!
that's how superbikes are lightened over the years what?
engineers removes a gram here n there.
waisted bolts, drilled calipers, magnesium and carbon fibre instead of alloy or aluminium, miniscule stuff that we ignored.
we haven't talk about F1 weight saving techniques yet, have we?
like how they weigh the car before and after paint, how much weight the stickers are n stuff like that?
Good choices for 14" wheels are about as abundant as dragon's teeth. Do you have any opinions of a good 14" wheel with 4-hole PCD 114.3 and an offset of 38 or 40 ?starscream,
like what renxun said. i think you should go no larger than 14" wheels if you're wira is the 1.3/1.5 model and no larger than 15" for the 1.6 or 1.8 model. you could check out the volk ce28n wheels as they seem to be the lightest 15" wheels available and next in line is the desmond evo regamaster.
Thanks man...my greatest respect to you for sharing...i been hoping to meet ppl whom actually have good knowledge like you...oh your actually in automotive engineering? mind to share what is the restriction you find in designing the lower arm? like the kinds of load & what is the material toloerance towards the load.. i compare the lower arm of proton (bend mild steel welded) with Evo (fully casted one piece hard steel) i think there is a significant difference in term of durability...starscream,
it takes a lot of work to design a proper cross-member. not only do the designers take into account static loading but due to the nature of its use, dynamic testing is also conducted via computer simulations which i can tell you, is computationally very expensive and time consuming. also, let's say you skip these steps and just fabricate a one-off cross-member, a small accident MIGHT prove catastrophic because designers also take into account crash dynamics of that particular component. take it from me, i'm currently doing my thesis which is to redesign the front and rear lower control arm of a proton putra and it's not as easy as i thought it would be.
i'd consider these safety critical items in a vehicle because failure of such parts would have a huge effect on vehicle handling (ie. if something like that breaks/fails, you can't steer your car properly!).
bottom line, do things safe yeah?
bro, for the daily basic use, just follow below few items are good enough already.
1. no power window.
2. light weight wind screen
3. small size battery
4. no spare tyre for the city drive.
5. look for GSR disc plate ( tinner compare with mivec )
6. use 4G91 air con compressor.
7. no ICE inside , just remain CD player with stock speaker.
8. light weight sport seat.
9. light weight sport rim with high performance tyre.
10. Performance clutch set and lighten flywheel.
11. Light weight tower bar and lower arm bar.
12. Single layer radiator and half face air con condensor.
13. After market 421.
... for a small budget why not try to source for S13 original rim..? its only around 500-600 inclusive of tyre... 17" some more ..and its a 4hole 114.3 pcd