rsjohn

hi, i have a full set of poly bushes to fit on my 4x4 sapphire cosworth and was wondering how much and time it would be to have them fitted???




John.

Alvyn

iTrader: (1)

fronts no time what so ever, the rear end

price wise all depends on HOW easy the rears come out and WHO is doing the job

Azrael

Front takes some time too - you have to remove whole front suspention.

rsjohn

Come on chaps that have had them fitted or who fits them!!!




John.

moonstone mike

sorry mate im going to fit them in the summer but what im doing is setting aside a whole day to do it as i got to fit coilovers also!!! and i would say fit your bushes where the car is ok to be left because if a bolt snaps or worse you can leave the car where it is safe for the next day and you aint gonna worry about it.

rsjohn

Iv been quoted Ł240 by the local RS specialist for the whole car to be done inc spring seats and strut tops.



john.

SPADGE

Do not polly bush the rear beam!
It will make the car handle shite!!

RSCosworth

why?

Azrael

Quite many people don't agree with you :-/ strange :-/ Can you say more?

RichardPON

The theory is this.

In the rear beam, the two "bushes" each side to the trailing arms are not bushes at all but spherical bearings.

By Polybushing, you are altering the way in which any vibration/movement is taken up in the arms.

I can see the theory but personally I'm not convinced. I did it to my cossie, and it handled superbly well.

moonstone mike

this topic will never be solved as everyone has got there own opinion on it........the best people to listen to is the people who have done it!!!!!!

Stu @ M Developments

iTrader: (12)

Technically, the car is propelled forwards by these two spherical joints as the driven rear wheel is bolted to the swinging arms, so they have a hard life in a modded cossie, especially one subjected to burnouts and other childish crap.. roflol

This is why Ford themselves deemed rubber as not up to the job and redesigned teh cosworth system to suit its 204bhp (Remember the whole sierra range was fitted with rubber bar the Cosworth's)

The spherical joint is a form of what you may well know as a "Rose Joint" and has no flex in it whatsoever, so a rubber bush will never be as good as it period. However, wether us road drivers will be able to tell the difference is certainly open to debate.

SPADGE

I fitted them to the 500hp 3 door i built the year before last with totally new suspension. Harvey at SCS told me not to and i ignored him! After the car was finished it always handled like shit and felt like it was trying to steer from the rear exactly how Harvey warned me it would!! Every other cossie i have owned since then has had standard bushes fitted and felt much better until now! The Gartrac has them and guess what 4 wheel steer all over again

Azrael

Spadge I don't understand anything - on standard beam bushes (I have new Escos ones from Ford) you can feel quite well rear steering effect at high speed corners. I already bought Powerflex ones from Cossymad and I will tell what is the effect for sure when I fit them.

SteveB

iTrader: (3)

Thats cheap imo.....

Ł360+vat to do the lot from me (whole days work)

Stu @ M Developments

iTrader: (12)

And i wont even do em at all, fookin things!!??!!

Stu @ M Developments

iTrader: (12)

We arent talking about beam bushes here, were talking about the swinging arm bushes

Azrael

Is it my English or what? He said "polybush rear beam"...

Azrael

By the way my rear arms are polybushed - no problems

Vic

can we have a picture?? paints a thousand words.. apparently!

Azrael

No.4 is REAR BEAM BUSHES - two big round things

No.5 and 6 are REAR TRAILING ARM BUSHES - pair of cylindrical things you put into the arm.


No.4 when is a Ford rubber element makes the car four wheel steer. Can be felt at hisgh speed corners when half a second after corner initiation you feel something similar to rear end slipping abut it's only movement in rear suspension.

I have No. 5 and 6 change to Powerflex, and no problems. No 4. is on it's way in.

Stu @ M Developments

iTrader: (12)

Its an English thing...
Whenever anyone shouts "Dont poly teh rear beam" they mean the swinging arms

Azrael

You learn english for 15 years and you still can be surprised

SPADGE

Sorry my fault for not being more specific

DO NOT POLLY BUSH THE REAR ARMS ATTACHED TO THE REAR BEAM AS THIS WILL MAKE THE CAR STEER FROM THE REAR

Azrael

Right now we know. Still I did and it is much better that it used to be

SPADGE

Then your old ones must have been so fooked that anything would feel like an improvement

Azrael

They were completely fucked. I do like my polybushes though. I will have complete set on the car as soon as it is done and I think it will be even better

SPADGE

Lol be honest you just like them and think they are better because they are yellow or purple or whatever gay colour......

Azrael

I like them because I tested them on Scoobies before and they made car even more tight everytime. They are harder then ruber used on Ford bushes and look at beams made by Brom - they use uniball joints, so even harder! And it makes the cars handle beter. Harder = better hendling, less comfort. I can't find any reason why it would handle worse with polybushed rear arms. I changed every bush in front from NEW standard items and it was much much better (giantic difference). Two my mates Escos were polybushed with Powerflex car kits I got for them and they handle much better. I still see no reason behind what you say. And it would be quite interesting to hear that.

SPADGE

Stu has explained already in a better way than i could so i won't go into it again!
Maybe on a 4x4 it just isn't as noticeable as on a 2wd car?
I was just joking when i mentioned you liking them because of the pretty colours but i feel i may have hit a nerve

Azrael

I can't see in what Stu has written anything about why poliuretane bushes wouldn't work :-/ Can you? Original ones are just ruber + two steel pices one on the inside one on the outside they aren't any uniball (spherical) joints fromwhat I have seen :-(


Not really I like the fact I have yellow shocks, red springs, silver brake lines and black discs to come Yellow/purple bushes also look nise. But usually you can't see them on my car...do you know why?

Stu @ M Developments

iTrader: (12)

I did say they are a Sperical joint.
This is not a rubber joint at all, maybe yours was not a genuine rear set?

I assure you your poly bushes are a tad less shore hardness than a spherical joint

Maybe someone will post a pic, Brom perhaps, im sure hes knocked a few out in the past

RichardPON

Best I can do you...........

..

Stu @ M Developments

iTrader: (12)

May be cause i havent seen any for ages as i refuse to fit the bugers, but they look like std sierra bushes in that piccy

RichardPON

If you look a little closer, you will also see that the arm is bent to fook too!

Don't know about the bushes being normal sierra ones, but all I know is that I absolutely destroyed them getting them out - fookin hammers, sockets, etc

Azrael

They look like mine did. Dunno if those are normal Sierra :-(

lamb chops

they are the same as mine, they deffo have rubber around the inners..