Toyspeed.org.nz Message Board

by **gmacrae** » Sun Jun 17, 2012 10:47 am

Looking for a stiffer set of rear springs for AW11 rear. The stock ones are tapered from about 130mm diameter at the bottom to about 100mm at the top. I guess their spring rate is probably around 7-8kg/mm. I'm looking for some to replace them with 10+kg/mm - there's gotta be a bigger car fitted with similar springs out there, has anyone found any compatible stiffer springs for these things?

Cheers

by **85AW20v** » Sun Jun 17, 2012 11:20 am

Check the supercharger ones - they "might" be heavier. Seem to remember something about that from years ago.

Why do you want stiffer springs? To flatten out the body roll, do it with the swaybars rather then the springs as it keeps the ride softer.

by **gmacrae** » Sun Jun 17, 2012 10:24 pm

Cheers, Ive got supercharger ones already though. Cut a coil out and reshaped/compressed bottom coil to drop car and increase spring rate but dont think it's stiff enough. Not necessarily wanting to make the car stick better, just handle more predictably. I'd rather do that through stiffer rear springs than bigger swaybar at this stage. My last aw11 had real firm rear springs and it was awesome - no idea what they were out of though.

Nobody swapped in a pair of springs from anything else at any stage?

by **rx7guy** » Mon Jun 18, 2012 8:03 pm

I'm pretty sure even cut stock springs wouldn't be anywhere near 8kg/mm. Maybe half that. 8kgs more like a coilover spring rate.

But I cant really help you sorry.

by **gmacrae** » Mon Jun 18, 2012 8:30 pm

yea that sounds about right, see how it drives I guess. Will probably have to go for coilovers down the road

by **DRFTIN** » Mon Jun 18, 2012 8:30 pm

yeah i'd guess more like 3kg max factory
we had triumph 2500 springs in the old ae86, front in the rear i think. might be similar

by **gmacrae** » Mon Jun 18, 2012 8:36 pm

trumpy springs?! ha, awesome. Wish we had some decent wrecker yards around here for me to go trawlin thru for springs

by **Mr Revhead** » Mon Jun 18, 2012 9:51 pm

Wow, 10kg in the rears? Are you sure? Personally I'd be scared of that thing anywhere except a race track.

What's the handling issue you have now?

by **gmacrae** » Mon Jun 18, 2012 10:53 pm

Well, the handling issue right now is like this... it's doesn't handle at all (...currently on jacks in the shed

)

The new "professionally modified" rear springs are *about* 30% stiffer than stock (was 7 full active coils now about 4.5), we'll see how the little KYB's like that haha. Shocks are new and shortened 40mm. The rebound dampers probably wont last long.

The idea is to make the car a whole lot more predictable during oversteer. I'd love to be the one muppet at the open drift day in an aw11... not taking anything too serious, will also spend some time at the dragstrip so making the rear TOO hard probably aint the best idea I guess.

10mm in the rear would pretty damn stiff then eh? I dont have much experience with spring rates in these cars

by **85AW20v** » Tue Jun 19, 2012 6:41 pm

Easiest way to get an MR2 controllable in a slide is to use the alignment to get it to do what you want. Zero or even positive toe on the back will get it sliding no problems at all!! Get it set up straight and square and ask the aligner - is that even a word?? - how far one turn of the toe adjusters takes it. Go to a Playday on Track day, try different toe settings and see what happens. Much easier than guessing what different springs will do. And adjustable swaybars will still help with what you're trying to achieve.

by **gmacrae** » Tue Jun 19, 2012 6:52 pm

Cheers Simon, good info. Positive toe is 'toe out' right?

I can see the advantage to adjustable swaybars, but think i should probably get a set of coilovers before i look into them. Whiteline used to do aw11 swaybars for memory eh?

by **Mr Revhead** » Tue Jun 19, 2012 7:29 pm

Front K=28.4N/mm
Rear K=49.0N/mm

There's the specs on the TRD springs for the AW11. The rears work out at about 5kg. Having owned and driven one with those springs I really to suggest you do not go to 10!!
Also, I would suggest your guess on the stock spring rate is quite a bit out.

by **gmacrae** » Tue Jun 19, 2012 8:04 pm

Haha righto cheers Warwick. Yea everything i've read since says about the same. Would be nice to still have my fillings after a drive in the thing!

by **85AW20v** » Tue Jun 19, 2012 10:48 pm

gmacrae wrote:Cheers Simon, good info. Positive toe is 'toe out' right?

I can see the advantage to adjustable swaybars, but think i should probably get a set of coilovers before i look into them. Whiteline used to do aw11 swaybars for memory eh?

Yep - positive is out - and you won't need much!!

My swaybars are adjustable but I did them myself from standard ones. Welded a tag along the top about 150mm long with holes drilled in the tags about every 20mm. Make sure you use the right welding rods for the high carbon steel that the sway bars are made of.

by **gmacrae** » Tue Jun 19, 2012 11:38 pm

Cheers man. I was looking at somehow making the stocker adjustable but couldn't spot a way to do it simply, dont quite follow your description... reckon you could chuck a pic up here if you have a shot of your mod?

by **85AW20v** » Wed Jun 20, 2012 10:56 pm

This is the back one but the same principle applies....

by **gmacrae** » Wed Jun 20, 2012 11:42 pm

Ahh yep sweet, that's definitely something I can manage. Cheers for putting the pic up

by **B_giB** » Thu Jun 21, 2012 9:17 am

85AW20v wrote:
gmacrae wrote:Cheers Simon, good info. Positive toe is 'toe out' right?

Yep - positive is out - and you won't need much!!

Correction, Positive is Toe in.

Toyspeed.org.nz Message Board

AW11 springs - anything else compatible?

AW11 springs - anything else compatible?

Who is online