Ben Yip 's ZRE Facelift

[Kenshin X]

I use graphs too, doesn't make me better at things.

^^^ LAWLS! ultimate troll post

ben, ABS will only assist u in the dry, not in the wet. and i think what u mean by 50% braking is that when its wet, u can only apply 50% braking otherwise u will spin/ABS/slide?

As for me, since my first car didn't have ABS, now having a car with ABS i realise how useless ABS is. ever heard of threshold braking? this will give u a shorter stopping distance than ABS. its hell difficult on the wet but that depends which tyres u have on at the time as well.

ABS is sometimes annoying as well when you are braking to a stop over bumps as it kicks in when the wheel is air borne (esp on coilovers). if i could, i rather not have it in my car.

[Cee-Lo]

Maybe the ABS can be disabled by removing a fuse or relay (It works in a VY Commodore), but best you research before trying it, It is very likely it will throw up a warning light, and who knows what else it will do?

[ben yip]

ABS is sometimes annoying as well when you are braking to a stop over bumps as it kicks in when the wheel is air borne (esp on coilovers). if i could, i rather not have it in my car.

Also, there is another factor called EBD, more brake will be applied on the wheel with more load, this also applies to sideway load. According to Toyota, (http://www.toyota.com.au/glossary)

The latest Toyota EBD can adjust the fore/aft brake balance according to vehicle load and the right/left brake balance if the brakes are applied during cornering. EBD is a new recent technology, cars fitted with ABS does not mean it is fit with EBD

Maybe the ABS can be disabled by removing a fuse or relay (It works in a VY Commodore), but best you research before trying it, It is very likely it will throw up a warning light, and who knows what else it will do?

Disabling ABS is not good considering how poor I use the brakes. There is only one situation where ABS is useless-snow or gravel, but who will drive fast in the snow, LOL!!!

After the last track day, I start to appreciate today's braking technology more and more

Edited November 20, 2011 by ben yip

[4ABHGE]

who will drive fast in the snow? LOL!!

*whistles*

(Dont judge me!! it was off the streets :P )

Anything that isnt dry tarmac makes ABS useless, but even on tarmac i find it quite restricting.

Edited November 20, 2011 by Toyota_kid

[Hiro]

ABS is designed for emergency stopping situations when you just slam the brakes on. It is not something you should encounter in normal driving or even on the racetrack, because it means you aren't braking properly. It does not improve your braking. As had been said, threshold braking (where you brake with 99% of available traction so you don't lose grip) will always pull you up faster than ABS which is actually pulsing the brakes on and off to prevent lockups

[ben yip]

Inspired by Dutchie101 who has installed this, I got this ground effector today

$260 include delivery, order from http://www.plotonline.com/others/customer.html They speak English. Part number is 51413

Installation menu is http://www.plotonline.com/dcuatro/others/pdf_data/manual/ge1/51413.pdf

They work from 50km/h up, I guess I should be able to feel it in highways or track days

Google translate of a review, the amount of download actually suprise the author. I have read other reviews which is positive about it as well

http://translate.google.com/translate?sl=auto&tl=en&js=n&prev=_t&hl=en&ie=UTF-8&layout=2&eotf=1&u=http%3A%2F%2Fmru.txt-nifty.com%2Fblog%2F2009%2F03%2Fground-effector.html&act=url

Edited December 1, 2011 by ben yip

[clifton]

Here's some reading for you to do.

http://en.wikipedia.org/wiki/Ground_effect_(cars)

[Pro86]

looking quicker and quicker mate. hurry up and get those semis u will be surprise how much difference it makes on the track

Edited December 2, 2011 by mark2zz

[ben yip]

even I doubt whether these 2 metals are effective. I cannot find any review article in English about this thing, I can only find Japanese reviews

$260 is expensive because JPY is very expensive, it actually cost 20K JPY include delivery, few years ago, 1JPY=1 AUD, now 1JPY=1.3 AUD

I cannot find a scientific measurement of how useful is this thing

I still have not installed it since I just ordered yesterday from Japan, so cannot test out.Comparison of lap times will tell in the future..

I agree that I am wasting my money, but modding car is waste of money anyways, and car racing is a sport that is dangerous and waste of money, even I dun know why I do this sport

Since dutchie101 has installed it here

I dun mind giving it a shot as well

I have read a few review in japanese, they are quite positive. Read the following about one guy driving RX8, (google translate is still not good)

http://translate.google.com/translate?sl=auto&tl=en&js=n&prev=_t&hl=en&ie=UTF-8&layout=2&eotf=1&u=http%3A%2F%2Fkamekichi.blogzine.jp%2Frx8%2F2005%2F09%2Fpost_dd11.html&act=url

I probably to be a geniue pig to try this thing. May be it gives me suprise. May be I am a moron after all !!

Edited December 2, 2011 by ben yip

[juvenile]

I agree that I am wasting my money, but modding car is waste of money anyways,

:D

I have read positive reviews in Japan as well on the Modellista ones...

[chicken]

my bmw came with 2 pairs of these underbody flaps from factory... so maybe they are useful in cars at stock ground clearance.

[1stKill]

I agree that I am wasting my money, but modding car is waste of money anyways,

:D

I concur modding cars is a big waste of money but heaps of fun and i get a kick out of it,imo it's healthier and sometimes cheaper than drugs & gambling. :D

[Andrew357]

my bmw came with 2 pairs of these underbody flaps from factory... so maybe they are useful in cars at stock

My mum's Lexus gs460 has them as well. I've always wondered what they are for as they visually stick out and ruin the flow of the car.

edit: Massive english fail.

[dutchie101]

Thread cleaned as per Bens request.

It and i was getting out of hand. Sorry to those that did supply some info.

On with the show Ben!

[Kenshin X]

my bmw came with 2 pairs of these underbody flaps from factory... so maybe they are useful in cars at stock ground clearance.

The Sportivo has them in front of the frotn wheels too. I remember reading some article explaining them a long time ago. I suspect the aim on the Sportivo was to reduce the drag caused by the rotating wheels.

ahh so that's what they r for. I was considering to not move them on the new guard arch when track day melted them. luckily I did. :D I thought it was funny how mud flaps were at the front of the wheel

[ben yip]

I have put R888 semis today, will test it out this weekend, hope to get some 1:14

Car has been returned to stock rims, a bit ugly

Went to wakefield 2 weeks ago, PB is 1:16.7 in the last part of the video chasing up the R34, got 2 major incidents on that day, have to end the day early

Here is the video of my race, racing with

BMW E30 323i

Honda EG and EK Civic

Integra DC5 Type R

Nissan Skyline R34 GTR

Toyota Celica GT4

That R34 has been giving me few clogs of black smoke at the last corner at 11:33

Sound quality is bad due to made in china quality camera.

That stock Type R is faster than me on the straight, but not by a big margin, the difference between my car and his car is not big

On the contrary, I am just a bit faster than that stock E30 (with weight reduction) on the straight, which has 110kw (at the crank)..

My conclusion is you really need to have big power difference or a turbo in order to run out somebody on the straight

http://www.youtube.com/watch?v=anO7J-V4aFo

Hot hatch battle

A 197X Corolla

Celica GT4 Rally

On one incident where one car broke the gear box and left the debris flying around, and damaged my friend's Holden

IS200

My Car

Edited December 13, 2011 by ben yip

[4ABHGE]

Looks good ben! car goes real hard

I want semis so bad, best of luck with them!

[Pro86]

what size u running?

[eviltwin]

nice work mate love the Datsun 1200 coupe

[jeffy]

awesome driving ben !~!

daang at that black smoke at 11.35 lols, turbos man, really leave you flying on straights :P

[clifton]

those semis look so fat! i want to get some for a trackday early next year

[4ABHGE]

Hey Ben pretty sure i spotted you this arvo coming from the north heading southbound into sydney on a main freeway (#1 ?), car looks a bit funny with the stock wheels on

I could be wrong though

[ben yip]

inspired by Juvenile regarding rear sway bar in http://au.toyotaowne...915#entry330915

I also decide to give up by Cusco 16mm solid sway bar and changes to 20mm adjustable solid ones

but the design is like this, with rear ends of the bar attaching to one of the hole of the sway bar to make it adjustable (using sway links I guess)..

and the torsion axle holding the bar on each side

Price is close to $500 mark due to its adjustable nature (I know it is ripped off, but I dun have a choice, and since it is customised, it is reasonable for extra labour)

This should fix the understeer problem after changing to Toyo R888 on track..(video at signature, not a good run)

16mm is too soft anyways when compared to other FWD cars with similar suspension design (Golf GTI, Ford Focus XR5, Corolla ZZE)

Research shows 20 to 24mm is the reasonable thickness for our cars for aftermarket sway bars, but I am still testing

AND

My exhaust has rattle noise near the resonator when the engine revs at 600rpm idle, believe to have cracked developed..

My car is not even a turbo car, and the exahust has problems so early..sigh. How can I buy an expensive car to track !!!

Edited January 25, 2012 by ben yip

[jeffy]

I also decide to give up by Cusco 16mm solid sway bar and changes to 20mm adjustable solid ones

This should fix the understeer problem after changing to Toyo R888 on track..(video at signature, not a good run)

16mm is too soft anyways when compared to other FWD cars with similar suspension design (Golf GTI, Ford Focus XR5, Corolla ZZE)

Research shows 20 to 24mm is the reasonable thickness for our cars for aftermarket sway bars

Anyone interested in my cusco 16mm sway bar can PM me.. I am selling it..

but ben didnt you say..

putting a rear sway bar (the 16mm cusco ones) will make the car so much fun to drive, I do not recommend going over 16mm, otherwise bad oversteering will occur...I have to adjust my coilover at the back to the softest to fix the little oversteering even with 16mm in the 80km/h 90 degrees corner (the first corner of the track in my video, many cars doing drifting there)..The factory one at the front is 16mm..

I have also experimented the thickness of sway bar in my computer simulator for FF cars, they must be the same or bad oversteer will occur

would this happen if rsb is too thick ?

*confused*

[ben yip]

Thanks, Jeff for reminding I was shooting myself regarding my own words !!!!

Correction: The front sway bar for ZRE is 25.4mm, not 16mm (to be confirmed)

Whether it is 16mm or 20mm is really an experimental thing, and it is always a puzzle for me. At that time (september), I am still a beginner to track, skills are still yet to develop. Now I am still learning, but obviously, my skills are better than in sepetember. Now I can do quite consistent lap times, whereas in september, I cannot..

I have asked KMAC suspension for the thickness for FF car, he told me, 20-24...

Looking at whiteline web site for their rear sway bars

ZZE: 22mm

AE92, AE101, AE82: 18mm

VW Golf GTI: 24mm

Ford Focus XR5: 22mm

These number is just for reference, each suspension geometry is different, but ZZE, Golf GTI both using Torsion beam at the back and front struct, so the set up is quite close..

and I have no idea what is the spring rate they are using..

Also, I guess the ZRE has a really thick front sway bar (to be confirmed), I have checked the cusco front sway bar for ZRE, and the cusco ones has 30mm,

checking at RHDJapan for 925 311 A30, the ZRE152N has original thickness of 25.4mm, so I guess our ZRE has the same thickness of 25.4

Some other factors also to consider

1. After I put front upper struct brace and front lower struct brace, the car starts to understeer more (I dun have these in september)

2. After I increase the thickness of suspension by turning the coilover, the lift off oversteer reduces

3. After I switch to semi slick, the lift off oversteer reduces

4. After you take off the back seat and front seat, the rear is more grippy

5. After you change the tyre pressure (I dun know how to tweat this in september)

6. Personal driving style

7. Camber?

Too many factors involved only lap time will tell whether I have made the right decision

Edited December 31, 2011 by ben yip