Rollin Rides

As some of you mite no im wanting to do the underside of my saph this winter.
I am just wondering weather im able to press out my powerflex beam bushes as they are only 2months old and dont want to buy them again Before powdercoating the beam??
Also what are the powerflex trailing arm bushes like as the ford ones are £70 each and there are 4 of them!!!!!!!!!!!!....

Turbosimpsons

iTrader: (3)

you should be able to press them out with some type of lube. DON'T use any other bush in your trailing arms (it will handle like a bag of shite). the ford one's are a type of rose joint

tabetha

You can pull them out easy, just go slow drawing them out.
You can replace the arm bushes no problem, don't listen to the above, a decent poly bush is way better than a knackered roller bush, which imo was the most stupid idea ever, just like the whole rear end suspension, you will never in a month of sundays get decent handling without a poly diff mount, cosworth suspension using the rubber diff mount really is that shit, sure you can keep your oe cossie type arm bearings, it will just mean the arms will be stiff, but leaves the whole beam jumping all over the place, just imagine the car going down the road with each rear wheels toe changing all the time at the same times as the camber, at the same time as the position of the wheels in relation to the car changing and you'll know what the rear suspension is doing, and soon see where the real problem lies, nothing to do with keeping the std ford type bearings in place of poly in the arms.
tabetha

RS SHAUN

iTrader: (24)

I've changed all of mine To polybushes, and it's loads better than it was!
Cheers shaun

tabetha

Did you do the diff mount as well ?, this has got to be the best most effective mod for the money imo by a huge long long way.
tabetha

RichieST

iTrader: (2)

Can you not mask the bush off before powdercoating instead of removing it?

RS SHAUN

iTrader: (24)

Yeah tabetha changed the lot, totally transformed my saph!
Cheers shaun

Cossy Mike

iTrader: (4)

I managed to get the beam bushes out on mine with a 2 legged gear puller on one side and a 3 legged puller on the left.

Deffo go for the poly ones in there.

I think you'll be hard pressed to find the original bushes from Ford. When I tried last month I could only find 1 inner bush.

Graham Goode do them at £80 each for inners and outers.

You will need these pressed out on a proper press. Try and do it carefully as I destroyed 2 of mine.

I've had my arms powder coated but I'm not happy with them and I've put the bushes back in so they'll need to come out again.

shanemc

I must do mine so if you think it's that effective, i'm polybushing the whole car besides, kinda overlooked that bush/mount, the fact its not a cossie didn't make me think it'd be that important

155lee

iTrader: (10)

does fitting the poly diff mount make the car vibrate or increase road noise in the cabin?

tabetha

The poly rear diff mount does give a little vibration/noise, but so small you soon get used to it, and forget about it, it's really very little.
What it does do however is take a 99% of the rear wheel steering attitude out of the car when you hit a bump mid corner, it also stops a good 80-90% of the body roll.
I tried with JUST a poly diff mount for for three months, as I was too lazy to put the rear arb on, and it rolled a HUGE amount less like this than with std bush and arb.
For purists the standard bush can be poly filled, so looks std apart from the black poly filling the void, and much cheaper as well, less than 1/2 price, no fouling of arb's, takes the std diff bolts etc etc, works just as well.
tabetha

155lee

iTrader: (10)

whereabouts does the poly filled standard diff mounts?how much??

Nash

iTrader: (3)

Leave the standard rear trailing arm bushes if they are in good condition. I would buy standard bushes again if it was me, but new pollys will defo be better if your originals are knackered.

Do it yourself with Silkafex or alike.

155lee

iTrader: (10)

do you just fill up all around the rubber insert bit?will that have the same effect as a new poly bush?i need some silkaflex for my spoiler anyway so might be worth a try.

tabetha

On a serious note, I have used the poly filled ones and cannot detect ANY difference between these and the aftermarket poly ones with nice alloy housings, but then I have tried both, and supplied poly filled ones, on cars that are used for the 1/4 mile only running NOS on top of tuning, and others on road cars, not a hint of a complaint, but you will get comments based on zero experience this is a forum!
The poly filled mount is just that, filled with shore 90 poly so it is level with the metal outer shell so to speak, and fits exactly as a reversal of removal, but makes a huge difference, just as well as a after market one.
tabetha

Cossy Mike

iTrader: (4)

I believe it's the gearbox mount that gives bad vibrations ??

RS SHAUN

iTrader: (24)

here is mine



cheers shaun

shanemc

What company does these mounts?

Char1ie

iTrader: (6)

I've just had to replace the four rear trailing arm bushes at £350 from Graham Goode for the set. It's the best option though. If you have them in good condition on your beam, leave them in place.

Tabetha, I know you have mentioned the poly diff mount as being a major change to the handling but I didn't find it that effective on its own. A combination of springs, dampers, polybushes, diff mount works well at the back.

Charlie

tabetha

NO company does them, I do them if asked for.
tabetha

tabetha

All I can say is the rear was all polybushed apart from the diff on my car, as I say to start with for 3 months this was used with no rear arb, as had taken it off to make a 22mm adjustable rear arb(also a huge amount better), so had 3 months to evaluate, even without the std(16mm)rear arb there was a massive amount of roll gone with the poly bush, in the state of no rear arb but poly diff cozmeister drove my car, and found precisely the same compared with his polybushed rear end and his std 16mm arb fitted, ie it rolled less, a lot less.
The most major thing I found though was the total elimination of rear wheel steer.
Out of interest what springs rates were you using when you fitted the poly diff mount ?
I totally agree to get the best it all needs doing though, would be interesting to try one where just the diff hanger has been poly'd, have feedback from 2 people running this ie std ford bushes but poly diff and they are both well happy.
tabetha

Char1ie

iTrader: (6)

I'm using 250lb rear springs on coilovers.

You eliminated body roll by using a stiffer diff mount?


Charlie

tabetha

I didn't eliminate completely body roll, with a poly diff mount, but it did cut a huge amount out, 250lb ?, seems way too soft for what you use the car for, the 3 door rear arb is only fit for the bin imo.
I'm using 200lb 12" rear, but going to 250lb, as way way too soft spring rate for me/car.
I can only assume my oe diff mount was seriously shagged, I know when jacked up there was a minimum 1 1/2" movement between diff and shell, bearing in mind all the angles of the wheels change with any movement of the diff/beam, and how shit the cossie suspension is anyway design wise I'm amazed I stayed on the road.
But yes in all honesty running with a poly and no roll bar I soon forgot that the rear arb was not there, this was shortly after I got the car, and tbh can't remember if I came across anything wrong suspension wise, but thinking now that may have been when I had the rear coilys refurbed so used a diff setting on them.
tabetha

shanemc

Pm sent

Char1ie

iTrader: (6)

550lb front and 250lb rear spring on a 1050kg Sapph race car. Works well on track. Don't want it too stiff at the back.

Charlie

tabetha

That's a huge variation but so long as it works for you, I only run 300lb 9" front, as no need to up the spring rate to stop roll, I'm upping the rear to make it bite harder at the rear.
Do you run a front arb, are you on comp struts.
tabetha

Char1ie

iTrader: (6)

Standard ARB front and back. Polybushes. Standard front TCAs and rack. Standard rear beam. 3 door front hubs. Gaz Gold coilovers. Poly diff mount. Very stiff poly beam mount bushes.

In terms of handling it's getting close to being as good as I can get it within the regs of the series I race in.

I could do with more grip and may go to 8" wheels with 225 R888s instead of the 7" and 205s that I run at the moment. I have been told that 215s on the back may help with rear end grip.

Charlie

Char1ie

iTrader: (6)

Sorry about the thread hijack by the way.

In answer to the OP, yes, push out your beam mount bushes and re-use them when you put the beam back in.


Charlie

tabetha

I've got 225-45 X 17 to go on my 7J, a size I've used before without issues on a 7J.
tabetha

Char1ie

iTrader: (6)

225 R888 is a fat tyre.

Charlie

Danny @ Enhanced Performance

iTrader: (3)

You only run gaz silver on the rear mate as iv mentioned before and the rear end is way to soft also you need bigger tyres alround,you can get 225 888s on 8j easy on a race car saph..
Theres loads left in respect of quicker laps from handling in your car imo charlie!!



cheers danny

Char1ie

iTrader: (6)

What's Gaz Silver?

The 3 door that won the championship this year runs on the same spring rates and same tyres as I run. 8j and 225 R888 is the next step but I'll need to roll the front arches to get them in.

Mostly I need to drive better, rather than mess with the car any further.


Charlie

Danny @ Enhanced Performance

iTrader: (3)

Wider wheels and tyres,gaz golds on the rear 350lb rear springs,shim kit,a stiffer rear anti roll bar and a corner wieght set up and then it will only be a matter of your driving as it will then be a contender for the win in your championship..


cheers danny

Fudgey

iTrader: (4)

so how do you go about removing polys from the beam? as when i swap mine over ill reuse the polys.

i used dads 20 ton press to get em in with lol, but his company closed last year so cant use it get em out.

also, with the diff mount, do you just litterally fill it with a tube of sikaflex????

Nash

iTrader: (3)

235 will fit on the back of a saph.

TheScrapman

Burn the bastards out with good old oxy-acetlyn

Nash

iTrader: (3)

What a great way to save from ruining 2 month old bushes

Fudgey

iTrader: (4)

i got 235's on mine, did roll the arches tho lol

Nash

iTrader: (3)

I have had 235's on mine for years, never touched the arches either.

Char1ie

iTrader: (6)

Yes, thanks all. 225 Toyo R888s fit on the BACK just fine, but not on the front of my car. Hence needing the arches rolled at the FRONT.

Does anybody run 225 Toyo R88s on the FRONT of their Sapph on 8" rims with Gaz Gold coilovers?

Thanks for your help.

Charlie