Problem with rear Shocks/Suspension Help please!!

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I have a Sirion 4 Track as most of you on here know.

I have got a problem - only found out last night!
I had a couple of heavy weights in the back last night.
When I hit a large depression in the road (I wasn't going fast)
The 195 Tyres Hit The Wing Edge. Sad

Seems I have two choices. Change the Tyre size to a smaller one so it will not hit the edge of the wing !!
Or upgrade the suspension so it doesn't crush as much when heavyweights in back??

It was quite bouncy with them in the back as well - Felt like the front end was light and in the air !!

Ideas please and hopefully some addresses I can try for upgrade.
(Which is what I think I will prefer to do.

No rush - It runs perfectly well otherwise. I just won't let the big beggars get in my car again until I have a fix Smile

Cheers, Bob F.

Hi Bob, Sounds like a

Hi Bob,

Sounds like a familiar story to what I have on my YRV Turbo. Are you using spacers so that the tyres fit? Only reason I ask is that on my YRV turbo I ended up using 5 MM spacers on each rear end so that the tyres would not touch the rear axles, but when going over bumpers and depressions in the road can hear the sound of the tyres scraping the wheel arches. The trick here is to grind down the rear axles and use something like 3MM spacers. Also what type of tyres do you have? As it appears some makes are wider than others. For example I am using Uniroyal 195/50/R15 550 RAlly's and they stick out a bit.

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'53' Plate Yellow YRV Turbo/ '53' Plate Black Subaru Impreza WRX STi PPP
130BHP/305BHP

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'12' Plate Mazda MX-5 2.0 litre NC 3.5 Venture Roadster 160BHP
'15' Plate SEAT LEON 184 FR TDI. 240BHP/500nm Torque.
Past: '53' Plate Yellow YRV Turbo Approx. 150BHP

Nope - No Spacers.

2004 Sirion 1300 4 Track. And I love it.
Don't like the new shape much.

The Alloys fitted straight on to the 4 Track . No spaces no nothing. Smile
I had a problem with the 1300 SL and as you say I had to grind the suspension a little to make them fit.

The tyres are clearly stuck out a little but not much.
It's only when I have anyone in the back who is rather large I have had this problem. My solution would be to put in stronger springs and dampers so they don't crush as much with weight in the back.

I was just wondering if anyone had any thoughts on this or had done it to theirs to save me searching all over the place Sad

We have been over all this before in a thread some time ago.
I was looking for a fix that someone might already have done.
The car is a bit bouncy anyway so stiffer springs and shocks would tighten up the ride too.

BobF.

Picture of my New Baby in Image Galleries in Cars.

2003 Sirion Rally 4. And I love it.
Don't like the new shape Sirion much.Sorry.

Rear Springs

Can't offer any advice on wheels or tyres on the earlier (or even current) Sirion.

I cured a rear-suspension-bottoming-with-heavy-load problem on my YRV by fitting some rear springs recommended by John Oldershaw, the Daihatsu UK Technical Manager. Unfortunately he has just retired so can no longer offer his extensive knowledge to you.

The springs were Daihatsu part number DACC4007 and were sourced from www.daihatsu.nl who had commissioned their design to cure the YRV problem. They are progressive springs and raise the ride height by about 15mm and are a good bit stiffer than standard, so something similar should avoid your problem. Cost about £120. I wouldn't worry about the dampers. I kept the standard dampers and they are fine.

If you go to the .nl website and click the 'contact' button there is an email form in Dutch, but you'll understand it enough to fill it in and they all speak English. If you ask them about stiffer progressive springs for your car you may be lucky and could get them via Daihatsu UK once you have their Daihatsu part number.

Best of luck with it.

YRV Tony

YRV Tony

Thanks for the info so far !!

2004 Sirion 1300 4 Track. And I love it.
Don't like the new shape much.

This sounds like a plan.
I will contact them.
The running gear under the car is pretty much the same for both the YRV and Sirion.

Is your YRV 4 Wheel Drive?

Cheers, Bob F.

ps I will let you know how I get on.

2003 Sirion Rally 4. And I love it.
Don't like the new shape Sirion much.Sorry.

Sirion rear springs

No Bob, my YRV is 2-wheel drive.

The only thing I can tell you about the 4-wheel drive YRV is that the rear dampers are different from those of the 2-wheel drive.

If as you suggest the Sirion and the YRV have a great deal in common, another idea would be to check with your local Daihatsu dealer spares dept whether the 2-wheel drive YRV rear springs are the same as for your 4-wheel drive Sirion. If they are you've cracked it - you could use the DACC4007 springs that I have. Not only don't they bottom but they improve the handling beyond recognition on my car. It handles like an original Mini, quicksilver response and like a ferret round corners!

YRV Tony

YRV Tony

Same with the Sirion!!

2004 Sirion 1300 4 Track. And I love it.
Don't like the new shape much.

The 1300 SL and the Sirion 1300 4 Track are completely different as well. The Engine is the same and the front suspension is the same but the rear is not comparable in any way.

Looks like your are correct. I will have to talk to Daihatsu.

Cheers, Bob F.

2003 Sirion Rally 4. And I love it.
Don't like the new shape Sirion much.Sorry.

Hi Bob, Just seen a picture

Hi Bob, Just seen a picture of your new car in the gallery and those alloys suit the car with the chrome protectors Wink

If you have no luck with the springs then you may want to possibly look at either a different brand of tyre which has less of a overhang to the ones you have now but keeping the 195 profile. I beleive Daihatsu Dave got some good tyres for his 17" alloys which hardly have a overhang and are quite in-expensive. Or try different alloys Sad

At the moment I putting up with the odd grinding noise as the Uniroyals I have are still new Cray 2

-------------------------------------------------------------------------
'53' Plate Yellow YRV Turbo/ '53' Plate Black Subaru Impreza WRX STi PPP
130BHP/305BHP

-------------------------------------------------------------------------
'12' Plate Mazda MX-5 2.0 litre NC 3.5 Venture Roadster 160BHP
'15' Plate SEAT LEON 184 FR TDI. 240BHP/500nm Torque.
Past: '53' Plate Yellow YRV Turbo Approx. 150BHP

Contacted Daihatsu !! Waste of space.

2004 Sirion 1300 4 Track. And I love it.
Don't like the new shape much.

Thanks for your suggestions etc. Not sure about changing my Tyres though but will have to consider everything if I cant get a reasonable fix.

I asked Daihatsu about stronger springs - They said no way Sad
One of the lads at work suggested Carparts Direct in Mansfield.
They don't do the Springs Either but do a "Muscle Kit" Which sticks a bit of steel in the middle of your spring when fully open (Wheel off the ground) You then put the car back down and it prevents the spring from squeezing right up again so you get extra ride height and it stiffens the suspension!!

Anyone had any experience of these kits SmileUnknw

They also suggested Gas Shocks which can be increased when I know I am going to have extra load in the back !!

Anyone got these on or know about them Smile

Cheers, Bob F.

2003 Sirion Rally 4. And I love it.
Don't like the new shape Sirion much.Sorry.

Suspension Muscle Kit

Yes Bob, I tried these on my way to a different solution and wouldn't advise using them. They are hard rubber and look as if they ought to work but didn't solve my problem - which was harsh bottoming on the hard standard rubber snubbers and then probably harsh bottoming on the muscle kit!

I would have given them to you, but chucked them out a few weeks ago. To ensure we are talking about the same thing, look at 'Special offers' on www.carparts-direct.co.uk. They are £34.44.

The Rossini Spring Assistors on the same website would do your job, but what a price. If you went to a specialist spring winder you would probably get exactly what you need for that sort of money!

Your tyre width problem and spring problem are two seperate problems, the spring problem being the worst. If you solve that it will help but not solve the tyre interference problem.

Sorry to give you bad news. Wrt Daihatsu UK, now that John Oldershaw has retired there is not the same knowledge and help available. You may not have tried Daihatsu.nl yet, but Trevor Levy of Cam Speed could probably help and maybe point you towards an experienced spring winder.

YRV Tony

YRV Tony

Cam Speed.

2004 Sirion 1300 4 Track. And I love it.
Don't like the new shape much.

Everytime I put Cam Speed into the search engine I get tons of stuff about bloody Speed Cameras Sad

Do you have the web address please.

Further to problem.
Gas shocks can be fitted from KYB. £50 each.
Am considering getting Spring from Breakers yard for Daihatsu Sirion 4 Track (If there are any)
And then having springs made up new using Breakers spring as pattern.
We will see. Smile

Cheers, BobF.

2003 Sirion Rally 4. And I love it.
Don't like the new shape Sirion much.Sorry.

Cam Speed

Try www.camspeed.co.uk. It's a 'smartypants' website so takes a few moments to get the hang of it.

Cam Speed used to run the Sirion rally cars and designed all the mods for them.

Forget the KYB gas shocks as they are the same as your OEM ones - unless yours are leaking. After having much the same problem as you (except the tyres) and having thrashed about trying all sorts, I can tell you the problem is the springs.

You need progressive springs like the ones I have. They are quite hard if you ride in the back, but from the driver's seat they feel fantastic.

Do ask Daihatsu if the YRV springs are the same part number as your the Sirion's.

YRV Tony

YRV Tony

Thanks.

2004 Sirion 1300 4 Track. And I love it.
Don't like the new shape much.

I did ask about the YRV Springs fitting the Sirion.

They said no Sad

I did try the Daihatsu nl.

They haven't replied as yet Sad

I'm in no real rush but getting fed up with the lack of solutions .

I will get there though.

Thanks for the Cam Speed Addy Smile

Cheers,BobF.

2003 Sirion Rally 4. And I love it.
Don't like the new shape Sirion much.Sorry.

Your car is like a family

Your car is like a family and having heavy guest sitting in that too at the back means a bumpy ride not just for the other passengers but for the car. It becomes over weight and the tyres just are not so enough to carry the load.

You can also opt for strong suspension that will hold the car together but yes good tyres are primarily required to carry the car weight.

KW Coilovers

Solution so far !!

2004 Sirion 1300 4 Track. And I love it.
Don't like the new shape much.

I am having New Stiffer Rear Coil Springs made by Coil Springs Ltd in Sheffield.
They did the Upgraded Springs for the Rally 2 and 4 for Cam Speed UK, who did the Upgrade for Daihatsu.
Cam Speed UK no longer exist. But I did find the owner Trevor Levy (With the help of YRV Tony)who now lives in Canada and has Cam Speed ca.
He was a great help and put me onto the Coil Spring Makers in Sheffield.
They still had the Specs for the Springs.
I did not want to drop my car at all, so opted for stiffer springs at the standard ride height.
I am waiting for them to be delivered now.
It will be a while before I can fit them as I have just had an operation and musn't do any straining at all for some time.
The job looks fairly straight forward. Some spring compressors and drop the rear axle a little and that should be it.

I will report more when I have done it.

Cheers, Bob F.

2003 Sirion Rally 4. And I love it.
Don't like the new shape Sirion much.Sorry.

Hi Bob, if you've not already done your rear springs...

Hi Bob, if you hav not already done the springs, I have recently replaced mine and have some advice that may save you some head scratching and swearing.

The cunning engineers at daihatsu have not left enough space for spring compressors around the rear springs, and you cannot drop the rear axle far enough to get the new springs in as the brake flexi hoses are too short. However you can disconnect the upper flexi pipe to steel pipe union from the chassis bracket, you don't have to open the brake system, just remove a spring clip and push the steel pipe through the chassis bracket. This gives you enough extra travel to drop the axle far enough to get the new springs in easily.

Incidentally I had a bottoming out problem and found that one spring had broken, and the opposite damper was weak, never had any tyre contact with the wings, but I'm on standard alloys and 185 tyres.

Cheers

Dave

There Done!

2004 Sirion 1300 4 Track. And I love it.
Don't like the new shape much.

Thanks for this Dave.
But they have been done for some time.
Yep the clips were undone to do the job.
I had the Springs Made specially by Coil Springs Ltd in Sheffield. -They made all the Uprated Springs for the Rally 2 and 4. I really must get on with doing a document for this website about my experience doing this.

There are pictures on this website of the new an old Springs in Images - Modifications and pictures of car etc.

The car is much more taught now, but still lovely and smooth.
But to be honest the real fix - Is NOT to go over 185 Tyres.
Then I wouldn't have had the problem in the first place.
We live and learn.

Thanks again Dave.

Regards, BobF.

2003 Sirion Rally 4. And I love it.
Don't like the new shape Sirion much.Sorry.

I think you might have heard

I think you might have heard about the Japanese company Tein. Tein manufactures high performance suspension products for many different Japanese and European vehicles. Based in Japan, Tein USA has established itself with an incredible R&D facility.

Tein has developed several different types of coilovers through their racing experience.

I think you will surely find a product for your requirements.

Hi Kamil - READ - Solution So Far.

2004 Sirion 1300 4 Track. And I love it.
Don't like the new shape much.

Hi Kamil.

Look further down the page and you will find

"Solution So Far"

Thanks for your idea about Tein.

Yep - I have heard of them.

Cheers, Bob F.

2003 Sirion Rally 4. And I love it.
Don't like the new shape Sirion much.Sorry.