51 replies to this topic

[Bumblebee]

A friend of mine has kindly made me some diffuser spacers up.do people tend to do fit them in all four holes and what do you do with the sides? Re drill? Thanks Aimy

[MrSimba]

Not sure what you mean Aimy?

There are 7 fixings and all 7 will require spacers - just use a longer bolt when you re-fit with the spacer.

With the sides just drill the base of the trim into the clam and use a black headed bolt to secure it, don't try to fix to diffuser as when spaced it won't reach

Edited by MrSimba, 18 July 2012 - 05:59 PM.

[Bumblebee]

Damn....i thought i only needed 6! Are my eyes deceiving me looking at the picture They all look different depths unless it's my eyes

[JG]

I don't fit the rear fittings, they don't really add to the rigidity and they make removing the diffuser a much longer task. so i only fit the 5 on the rear clam. If you do fit the rear 2 they will need to be thicker than the 5.

[Andrew aka Stuwy]

I used old copper pipe that was knocking about, cut it down, free and does the intended job, JG's looks nicer

[Bumblebee]

I don't fit the rear fittings, they don't really add to the rigidity and they make removing the diffuser a much longer task. so i only fit the 5 on the rear clam.

If you do fit the rear 2 they will need to be thicker than the 5.

Thanks for the info il try and sus it out tomorrow how low have you got your diffuser just out of interest?

[MrSimba]

I found it a 'must' that when you re-fit the diffuser to put some 'liquid metal / tigerseal' ect on the bars that hold the 'C' clips to to bond them to the clam, then when you come to re-fit in future the bolts just push in rather than trying to hold the bars through the wheel arch! All my spacers are 2 x 7.5mm except the centre one under the exhaust which is 3 x 7.5mm - the diffuser sits perfectly straight in line with the ground then

Edited by MrSimba, 18 July 2012 - 08:41 PM.

[JG]

i double side tape the main bar in place for the same reason. Aimy, my TAT is spaced by less than 1mm (a single washer)

[Ebo100]

What am I missing here, why does there need to be spacers? My TAT screws to the chassis in two places and then there are several screws into the clam. Is this an anti rattle solution?

[JG]

nope, its a looks thing. no other reason to do it. most will be fitted exactly like yours.

[MrSimba]

What am I missing here, why does there need to be spacers?

My TAT screws to the chassis in two places and then there are several screws into the clam. Is this an anti rattle solution?

LOL! Aesthetics friend, Aesthetics
No more performance or 'anti rattle' just looks

Edited by MrSimba, 18 July 2012 - 08:56 PM.

[Ebo100]

Ha Ha Thought I was missing something there. ps. Thats an indecent shine on your car

[Bumblebee]

i double side tape the main bar in place for the same reason.

Aimy, my TAT is spaced by less than 1mm (a single washer)

Mmm...Hope I haven't gone to low with mine �

[Bumblebee]

I found it a 'must' that when you re-fit the diffuser to put some 'liquid metal / tigerseal' ect on the bars that hold the 'C' clips to to bond them to the clam, then when you come to re-fit in future the bolts just push in rather than trying to hold the bars through the wheel arch!

All my spacers are 2 x 7.5mm except the centre one under the exhaust which is 3 x 7.5mm - the diffuser sits perfectly straight in line with the ground then

Thanks for that il pass the info on as I won't be fitting them

[mbes2]

Hi Aimy, take a photo and post it here

[J4EY D]

Hi Aimy, take a photo and post it here

I think he means a photo of the car... might be wrong though

[mbes2]

Hi Aimy, take a photo and post it here

I think he means a photo of the car... might be wrong though

Joey, your too young for such talk... Go tidy your room

[Mike (Cliffie)]

The aim and function of a rear difusser is to get air out from under the car and reduce the ballooning effect as it exits the underside and gets whipped up the rear clam. This ballooning effect gives rear lift which is best avoided. I have lowered mine to flatten the bottom of the car and increase the gap from the diffuser edge to rear panel and I guess (coz I aint got a wind tunnel) this reduces that ballooning effect. For me it aint about looks, it's all about aero performance.

[techieboy]

The aim and function of a proper functional rear difusser

[Korkey]

Why are these difussers not made correctly in the first place, ie. incorperating spacers? And if they need this spacing of which people talk why is this not supplied with the difusser? These items are sold as being correct.................. have the designers/sellers not fully understood something? Why is there a need to modify an item which is sold as fit for purpose? Do they even work? And if so.....proven, from what speed..............be honest. Korkey