Jump to content
SAU Community

Recommended Posts

Any one out there with an R32 or S13? You sick of the rear axle tramp on hard launches? Want better take off? OR How bout making the rear more predictable for drifting?

I HAVE YOUR ANSWER => PINEAPPLES

These are urethane rings that solid mount, and modify the angle of, your rear sub-frame. There are two methods of installation, GRIP and DRIFT. This modification to your car is completely reversable, can be changed between GRIP and DRIFT in around an hour or so, and greatly reduces axle tramping.

These 'PINEAPPLES' have been marketed by Japanese Motorsports in Adelaide for $150 for a while now. I have found a local source, and can supply them for $110 WITH ENGLISH INSTRUCTIONS.

I can also fit these to your car if your in the melbourne area.

PM me, E-Mail me at [email protected], or call me on 0411 878 961 if you are interested.

Link to comment
https://www.sau.com.au/forums/topic/2048-get-rid-of-axle-tramp-r32-or-s13/
Share on other sites

Nope, axle tramp is when you get wheel spin and your wheels and subframe 'bounce' a bit and cause major vibrations through your car. Of course bouncing wheels are not good for take off. If you need further explaination call me on 0411 878 961.

Doc.

Doc,

Can you explain where and how they mount. I've seen the pineapples on JMS that your talking about, but I could never workout where and how they work.

Do they work like a shock absorber for your sub frame or something?

And how do you change them between grip and drift? Is it just locating them in a different part of the sub frame?

And the big question (and last - sorry :P ) are they legal???

Thanks

J

Ok, There's four main bolts that hold your subframe on. All of these bolts have rubber bushes in them that allow the entire rear sub-frame to move around. Pinapples reduce the movement of these bushes.

You can mount the pinapples either above or below the subframe to take up the movement. These particular ones are designed to mount diagonally opposite, IE Front Top & Rear Bottom OR Front Bottom & Rear Top.... When you take up the slack in this manner it will slightly rotate the entire rear subframe, and hence your lower control arms. I believe it is this change in angle of the lower control arms that gives you your different handling characteristics.

Switching them over is a simple matter of removing and refitting by the other method.

LEGALITY => I have no idea, and refuse to 'guess'. You would need to speak to an engieeer for approval. I would simply paint them black when fitted and plead ignorance if it becomes a problem.

J, Hope this helped your curiosity. The JMS instructions are in Japanese and difficult to interpret. Call me if you want to discuss? 0411 878 961

Doc.

J,

What sort of car is it? Changing tyres wont help, I've tried it. Some of it is due to shockies but most is due to your subframe moving aroung.... Keep me posted if you want me to order a set.

Doc.

Doc,

At the moment I'm running Sava Raptex's - I must say that they are the worst tyres I have ever run on ANY car !!! But when I got them I was strapped for cash and needed to go over the pits - I really can't complain as they cost me $93 each (225/50/16's) and I've got 12 months from them.

I'll be getting the Dunlop FM901's in the same size so I'm hoping for a massive increase in traction :P but as you said, I'm not sure if they will fix the axle tramp. The suspension is pretty tight in the back (which doesn't help).

I'll let you know how I go after the new tyres go on.

Thanks

Jayson

The car is a R33 GTS-t.

Dig this - just did the phone around to get some FM901's (225/50/16). Prices range from $200 each to $271 each!!!!

Apparently Dunlop have put their price up as of tomorrow, so for any store that needs to order them in they have to quote the higher (after increase) price !!!!

I've found a place that has them in stock so I'm hoping to get them before the weekend........

Sorry - that was a bit off topic - I was just shocked !!

J

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • My thinking is that if the O2 sensor is shot then your entire above described experience is pure placebo.
    • Here is the mess that I made. That filler there was successful in filling dents in that area. But in the middle area. I can feel dents. And I've gone ocer it multiple times with filler. And the filler is no longer there because i accidently sanded it away. I've chased my tail on this job but this is something else lol. So I'm gonna attempt filler one more time and if it doesn't work I'll just high fill primer the door and see where the issues are because guidecoat is of no use atm.
    • Ok, so I think I sort of figured out where I went wrong. So I definitely overthinked it, and I over sanded, which is probably a large part of the problem. to fix it, I ended up tapping some spots that were likely to be high, made them low, filled them in, and I tackled small sections at a time, and it feels a lot better.    I think what confused me as well is you have the bare metal, and some spots darker and some are lighter, and when I run my finger across it, it' would feel like it's a low spot, but I think it's just a transition in different texture from metal to body filler.    When your finger's sliding on the body filler, and crosses over to the bare metal, going back and forth, it feels like it's a low spot. So I kept putting filler there and sanding, but I think it was just a transition in texture, nothing to do with the low or high spot. But the panel's feels a lot better, and I'm just going to end up priming it, and then I'll block it after with guide coat.   Ended up wasting just about all of my filler on this damn door lol  
    • -10 is plenty for running to an oil cooler. When you look at oil feeds, like power steering feeds, they're much smaller, and then just a larger hose size to move volume in less pressure. No need for -12. Even on the race cars, like Duncans, and endurance cars, most of them are all running -10 and everything works perfectly fine, temps are under control, and there's no restrictions.
    • Update: O2 sensor in my downpipe turned out to be faulty when I plugged in to the Haltech software. Was getting a "open circuit" warning. Tons of carbon buildup on it, probably from when I was running rich for a while before getting it corrected. Replaced with new unit and test drove again. The shuffle still happens, albeit far less now. I am not able to replicate it as reliably and it no longer happens at the same RPM levels as before. The only time I was able to hear it was in 5th going uphill and another time in 5th where there was no noticeable incline but applying more throttle first sped it up and then cleared it. Then once in 4th when I slightly lifted the throttle going over a bump but cleared right after. My understanding is that with the O2 sensor out, the ECU relies entirely on the MAP tune and isn't able to make its small adjustments based on the sensors reading. All in all, a big improvement, though not the silver bullet. Will try validating the actuators are set up correctly, and potentially setting up shop time to tune the boost controller on closed loop rather than the open loop it is set to now. Think if it's set up on closed loop to take the O2 reading, that should deal with these last bits. Will try to update again as I go. 
×
×
  • Create New...