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[05omegav6]

Following on from...

http://www.omegaowners.com/forum/index.php?topic=119902.0

I have successfully fitted a variation of the Monaro VXRs set up.

This consists of:
Monaro VXR double piston calipers with EBC Ultimax pads, modified brackets to allow for hub dimension differences.
Mercedes W164 ML 330x32 front discs, machined to fit the Omega hub spigot, 67.1mm vs 70mm.
Fresh Dot 5.1 brake fluid.

All the above are ECE R90 certified

Pad area is nearly twice that of standard pads, the discs are 34mm greater in diameter, and 4mm thicker, so should be a bit more heat tolerant.

First impressions...

Braking normally, they're a bit sharper, but not grabby. However braking from speed is simply phenomenal. The abs kicks in almost instantly when you stand on the pedal, which it only used to do grudgingly on snow. But the way it pulls up is what really impresses...

Emergency stop tests (done on an empty, dry road) from x speed to stationary, otherwise totally unscientifically:

20 mph about a car length, no more.
30 mph about 22ft
60 mph about four car lengths, 65ft perhaps.

I suspect, but can not confirm, as trying would be naughty, that it would probably stop from a ton in 100-120ft

Not sure how these figures compare to a standard 3.2, but they're significantly better than the car could previously manage, which was the principle purpose of the exercise

[martin42]

Good work 

[YZ250]

Following on from...

.....................

First impressions...

Braking normally, they're a bit sharper, but not grabby. However braking from speed is simply phenomenal. The abs kicks in almost instantly when you stand on the pedal, which it only used to do grudgingly on snow. But the way it pulls up is what really impresses...

Emergency stop tests (done on an empty, dry road) from x speed to stationary, otherwise totally unscientifically:

20 mph about a car length, no more.
30 mph about 22ft
60 mph about four car lengths, 65ft perhaps.

I suspect, but can not confirm, as trying would be naughty, that it would probably stop from a ton in 100-120ft

Not sure how these figures compare to a standard 3.2, but they're significantly better than the car could previously manage, which was the principle purpose of the exercise

Best make sure none of us get too close behind you at speed then Al. 

Nice work. 

[cem_devecioglu]

Good work Al.. next step test with several tyres

[Rods2]

Well done, it looks like you have had a good plan that has achieved what you set out to do.

Thread bookmarked for future reference.

[omega3000]

With all that braking G force its going to be ...




 

Well done 

[05omegav6]

Good work Al.. next step test with several tyres

I shall let them bed in a bit before really pushing them, but the Goodyears currently fitted seem to be upto the task... as do the polybushes

Re the stopping distances/following traffic, I might need to get it decorated sooner rather than later... any one rear ending a marked car, in service or not, deserves shooting... well perhaps not shooting, but it should help encourage people to keep back

[05omegav6]

With all that braking G force its going to be ...




 

Well done 

Well the seat belt definitely works

Joking aside, the total cost so far is about £300, so certainly not a bank braking (boom, boom) mod
 
Whether they'll meets Chris' V8 needs is a different question... but that'll be answered soon enough

[chrisgixer]

Good work Al. Might fancy a "quick feel" of those.

[chrisgixer]

Do you think the back needs an upgrade to match? Or is that in the pipe line? So to speak.

[tigers_gonads]

Do you think the back needs an upgrade to match? Or is that in the pipe line? So to speak.

My thoughts Chris 

Does the back end go light or any movement when you brake hard Al ?

[05omegav6]

Was always a bit squirrely under very heavy braking, feels no different now

But yes options are being considered

[tigers_gonads]

Any pictures or a "How to do" in the pipeline ?

[chrisgixer]

Do you think the back needs an upgrade to match? Or is that in the pipe line? So to speak.

My thoughts Chris 

Does the back end go light or any movement when you brake hard Al ?

I didn't intend the pun originally. Too late.

Been looking at 365 discs for the v8 project. Or even just for my own car. These would be a good pointer if 365 is needed, as they ain't cheap off an rs6.

[05omegav6]

 Reminds me, I shall try to remember to grab one of the Monaro rear calipers and the removed fronts to bring with me tomorrow, along with a rear hub coming straight from work...