Traction Issues - Work In Progess

[siksII]

so hang on, is my suspension crap or the tyres? i thought theese were good tyres, at $400 each fitted they would bloody well wanna be good tyres. whats some good tyres

<{POST_SNAPBACK}>

direzzas (dz101s) are decent tyres for the power u have, it will be your suspension that u should fix..

[Robo's]

Try your suspension ($100 i surely doubt it) but honestly i don't think its going to fix your problem. You've got some decent power, enough to spin your wheels and hence why your asking the question. I have more power than you and stronger torque and i could wheelspin 2nd gear on the role everytime. It was fun but it was becoming a joke. Rear camber was checked and pineapples for squat fitted but didnt do enough. I even tried stock suspension to get some squat, but that didnt do enough either.

Fitted some R compound rubber and bingo, i can get traction in 1st. As i mentioned in another post, it now launches like a GTR. Ask Silva33, he's been in my car on launch and was outstanded.

[justin911]

which tyres did you get ?

Fitted some R compound rubber and bingo, i can get traction in 1st.  As i mentioned in another post, it now launches like a GTR.  Ask Silva33, he's been in my car on launch and was outstanded.

<{POST_SNAPBACK}>

[Robo's]

which tyres did you get ?

<{POST_SNAPBACK}>

Toyo RA1's and im sure Bridgestone RE55's would do the job too.

[Sydneykid]

so hang on, is my suspension crap or the tyres? i thought theese were good tyres, at $400 each fitted they would bloody well wanna be good tyres. whats some good tyres

<{POST_SNAPBACK}>

Look you have Duncan who has arguably the 2nd fastest Production Skyline in the country telling you to have a good look at your suspension. You have me who does the suspension work on arguable the fastest Improved Production Skyline in the country telling you to have a good look at your suspension. And there are 2 or 3 other guys with lots of Skyline experience telling you the same. Compared to one guy who says tyres are everything and suspension does somewhere between nothing and very little.

Don't listen to any of us if you like, but please take it to Chris at Centreline and ask his opinion.

cheers

[Robo's]

Look you have Duncan who has arguably the 2nd fastest Production Skyline in the country telling you to have a good look at your suspension.  You have me who does the suspension work on arguable the fastest Improved Production Skyline in the country telling you to have a good look at your suspension.  And there are 2 or 3 other guys with lots of Skyline experience telling you the same.  Compared to one guy who says tyres are everything and suspension does somewhere between nothing and very little.

Don't listen to any of us if you like, but please take it to Chris at Centreline and ask his opinion.

cheers 

<{POST_SNAPBACK}>

We are talking street driving not a race car suspension setup.

Im no amateur and have done my fair share of drag racing (not track racing).

Your call mate, believe SK who probably has never lived with an R33 as a daily driver and has experienced the frustration that you have. Or believe me, who has experienced your frustration but has fixed the problem. Your only as good as the rubber lets you.

[Sydneykid]

We are talking street driving not a race car suspension setup.

Im no amateur and have done my fair share of drag racing (not track racing).

Your call mate, believe SK who probably has never lived with an R33 as a daily driver and has experienced the frustration that you have.  Or believe me, who has experienced your frustration but has fixed the problem.  Your only as good as the rubber lets you.

<{POST_SNAPBACK}>

You are correct, I have never lived with an R33GTST as a daily driver, however I do have an R34GTT with 265rwkw that has run an 11.9 at 120mph on radials that I drive almost every day. And once again you are right, I have never experienced the frustration that you have, maybe because I set up the suspension before I touched the engine.

If you want wheelspin frustration you should try the R32GTST with 420+rwkw, now that's a whole different ball game.

cheers

[Robo's]

I know of the R34 you are talking about, featured in Zoom and HPI videos? So what tyres are you running with on the street? Nittos? I know thats what you used on the strip.

I make a deal with you, if you can fix this guys problem with only suspension mods, i'll be your next customer.

We are having enough problems with 200+, 420rwkw would certainly require a good steerer.

[Sydneykid]

I know of the R34 you are talking about, featured in Zoom and HPI videos?  So what tyres are you running with on the street?  Nittos?   I know thats what you used on the strip.

I make a deal with you, if you can fix this guys problem with only suspension mods, i'll be your next customer.

We are having enough problems with 200+, 420rwkw would certainly require a good steerer.

<{POST_SNAPBACK}>

No, that's Ben's R34GTT, well ex-Ben anyway, he sold it after they tried the GT30 turbo upgrade. The guys at Whiteline used KYB shocks on his, mine has Eibach springs with Bilstein shocks, as I prefer them. I used MT ET radials on ours for the 11.9, couldn't drive with them on the street, absolutely useless around corners and dangerous in the wet. We have found them to be much better than the Nittos on the track though. On the road it runs my usual choice, Michelin Pilot Sport in 245/40/17 on the R33GTR 17X9's.

Yep, the 420+rwkw from the RB31DET in the R32GTST is quite nice, it has 245/45/17 A032R's on it. One day I might stick the MT's on it and try for a time, it should do a mid 9 at around 145mph. That's if I change the suspension settings from its current circuit spec. At the moment it would be lucky to do a 10, too much rear camber, anti squat geometery, bump valving in the shocks, toe in and the spring rate is a little high.

Just because I am a circuit racing specialist, doesn't mean I don't do drag cars.

cheers

Edited September 19, 2005 by Sydneykid

[Robo's]

  On the road it runs my usual choice, Michelin Pilot Sport in 245/40/17 on the R33GTR 17X9's.

cheers 

<{POST_SNAPBACK}>

So hows the Michelins in normal road use when you give it a bit of curry in 1st and 2nd??

[Sydneykid]

So hows the Michelins in normal road use when you give it a bit of curry in 1st and 2nd??

<{POST_SNAPBACK}>

Damn good, but after 30+ years of racing I have pretty good throttle control. Let's face it with 265 rwkw and power from 4,000 rpm to 8,000 rpm I hardly ever meet a car that I realy have to try to beat anyway, up to the speed limit of course. The roads in Sydney are never flat, so the suspension is very important in gaining the necessary traction via improved tyre contact with the road surface. Then there is always a corner, where the gap just grows expedentially.

cheers

[paulr33]

Hi Guys,

Been a while since I posted in here but here's an update of where I am;

I have sorted out the Active-LSD problems (no more single spinner diff)

I have brought two new hankook 255x40x17's for the rear (35psi on all 4)

Today it's at Centreline getting the following done;

Camber Kit front and rear

Castor Kit front and rear

Pineapple Kit for the rear

4 Wheel align and balance

Can't wait to see how she handles after all this is done, will pick up at the end of the day. I think active LSD was a big let down for my car as it never worked, but works happy happy now that's been resovled and works all the time

[Beer Baron]

Fitted some R compound rubber and bingo, i can get traction in 1st. As i mentioned in another post, it now launches like a GTR. Ask Silva33, he's been in my car on launch and was outstanded.

if your car is launching like a GTR you should be pulling much better 60ft times that 2.03. i would think any numbnuts (namely me) can do a low 1.8sec 60ft in a car launching like a GTR (namely a GTR).

I didnt think the RA-1s were an R-tyre? they look like a street tyre to me. the RE55s however are a hole other ball game.

[Robo's]

if your car is launching like a GTR you should be pulling much better 60ft times that 2.03. i would think any numbnuts (namely me) can do a low 1.8sec 60ft in a car launching like a GTR (namely a GTR).

I didnt think the RA-1s were an R-tyre? they look like a street tyre to me. the RE55s however are a hole other ball game.

Your wrong , the 2.03 was done on Sumituno's street tyres not the RA-1. I haven't been to the track yet with the RA-1's but judging by road traction, they are 100% better than the Sumo's.

They are very similiar to the Re55, some guys who have had both reckon they are better, but anyway im not complaining at all, traction is simply brilliant. Guns running big horsepower should certainly look at their tyres to get some rubber down on the street.

[silva33]

paul,

I noticed a huge improvement with the pineapple kit... my car comes on boost hard with 18psi low in the rev range and stock suspension and very rarely get wheelspin since installing them alone..

Before the pineapples it used to spin 2nd like robo's every time and thats with semi slicks

good luck

[Beer Baron]

the toyos are these ones?

these are the RE55s very different looking:

i stand corrected on the short times thing. new tyres should make a good difference. I'm just not convinced that those RA-1s can perform as well on track as the RE55s or A048s or even RT215s which have vastly more contact patch.

[FLYGTR]

The first tyre pictured is the RA1 and while not in the league of the re55 it will certainly produce better lap times than the RT215 . Toyo make the R888 to compete with the bridgy and it has has very good results , compared to the equivelent yoki AO48's at the recent historics( which it has been recently approved for ) round at PI.

adam.

Edited March 7, 2006 by FLYGTR

[Robo's]

They are R compounded so the grip is quite outstanding. I don't do track work besides 1/4 stuff. So the difference between these and a good road tyre is quite dramatic

[paulr33]

well after all the suspension stuff is done i have to go back in 1000k's and have all the bolts and stuff checked. it seems to handle a stackload better, no more wishy washy handling when you bag it up at the rear. the axle tramp has been reduced but some is still present.

when u go sideways it seems to go the way u point the wheels instead of sliding and carrying on which is tops. the rev limiter seems to come up stacks quicker as its more interested in gripping than spinning now also on the freeway is tops, the car goes straight, doesnt wobble and carry on (steering wheel).

all in all very very happy but unfortunately suffered exhaut gasket failure on the same day so ill have to get that sorted. chris has suggested (spoke to him after a quick road test) that we try the "drag" suspension setup at the 1000k check but he said that normal suspension performance is hampered a little when in the drag launch setup, as its a comprimise. currently im on best all round performance.

[Beer Baron]

The first tyre pictured is the RA1 and while not in the league of the re55 it will certainly produce better lap times than the RT215 . Toyo make the R888 to compete with the bridgy and it has has very good results , compared to the equivelent yoki AO48's at the recent historics( which it has been recently approved for ) round at PI.

adam.

Yeah, that's what i had though. as i have used the R881 (both GG and GGG compound), and R888 which are semi-slicks so i wasnt sure where the RA-1 was in the scheme of things. i thought maybe it was an R881 replacement, but it has street tyre looking tread so i was a bit confused.