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Author Topic: Astra H SRi 2.0 Turbo brakes on Omega?  (Read 740 times)

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JimmyR

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Astra H SRi 2.0 Turbo brakes on Omega?
« on: 10 January 2019, 21:17:06 »

Hi all!

I'm struggling to get much reliable info online. Basically the thing that has always disappointed me in the 'mega is the brakes. I have a 2005 Astra Turbo that has been written off (Cat N) and I'm planning to scrap soon. I've always loved the brakes in that.

I'll keep the wheels and tyres to use on the Omega, but is there any chance of using the brake calipers? Or would there be no benefit?

I believe the Astra has 308mm discs on the front and the Omega has 296mm discs, but I can find scant other concrete information. I don't have the two cars together to compare right now, and I thought someone here might know. If not, the Astra goes to the scrapyard on steel wheels. Shame for a fundamentally OK car, but it's not worth spending the money to sort it out

Thank you
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Doctor Gollum

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Re: Astra H SRi 2.0 Turbo brakes on Omega?
« Reply #1 on: 10 January 2019, 21:23:49 »

Cat N could probably pass an MoT... not fixing it is plain lazy if fundamentally ok ???

No the brakes won't fit. Easiest option is to fit the front callipers from an early base model Monaro/Pontiac GTO... same sized discs as the Omega and same fitting for the calliper. Anything more involved and you're talking £££ and effort. ;)
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zirk

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Re: Astra H SRi 2.0 Turbo brakes on Omega?
« Reply #2 on: 10 January 2019, 21:32:23 »

Very much doubt the wheels will fit, they could be persuaded with some spacers but that could mess things up.  :-\
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JimmyR

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Re: Astra H SRi 2.0 Turbo brakes on Omega?
« Reply #3 on: 10 January 2019, 21:38:30 »

Cat N could probably pass an MoT... not fixing it is plain lazy if fundamentally ok ???

No the brakes won't fit. Easiest option is to fit the front callipers from an early base model Monaro/Pontiac GTO... same sized discs as the Omega and same fitting for the calliper. Anything more involved and you're talking £££ and effort. ;)

It did pass the last MOT as a Cat N, but now it has more faults. It's not rusty and the engine and gearbox are good, are what I meant.

It's in a shabby condition, reports an emissions fault (although I've put it through the last few MOTs like this, just turning the light off before the test), it will need some suspension work for the next MOT and one headlight mysteriously stopped working a few weeks ago. I have changed the bulb, but no difference.

At the same time I got a crazy bargain on a car I've wanted for a while, so I've replaced it already
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JimmyR

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Re: Astra H SRi 2.0 Turbo brakes on Omega?
« Reply #4 on: 10 January 2019, 21:42:00 »

Very much doubt the wheels will fit, they could be persuaded with some spacers but that could mess things up.  :-\

They do fit - I've already used the car with identical wheels. This will just be a spare set to use the tyres up, since they're good
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Andy B

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Re: Astra H SRi 2.0 Turbo brakes on Omega?
« Reply #5 on: 10 January 2019, 23:48:55 »

..... Basically the thing that has always disappointed me in the 'mega is the brakes.  ....

I always found an Omega's brakes to be pretty good .... managed to haul 1750kg to a halt  ;)
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Raeturbo

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Re: Astra H SRi 2.0 Turbo brakes on Omega?
« Reply #6 on: 11 January 2019, 00:45:50 »

Brakes are fine in my opinion just need to fit good expensive pads which is a lot easier than changing callipers etc just gone through the same thing with the Evo since I ungraded. Carbotech XP10 are stopping it now if I can stay in the seat😂 mind you they should be good at over £200 just for the fronts🙀
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JimmyR

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Re: Astra H SRi 2.0 Turbo brakes on Omega?
« Reply #7 on: 11 January 2019, 07:21:27 »

Maybe Iím just used to cars with much better brakes then. They feel absolutely terrible to me! I have a Mercedes ML from the same era and thatís obviously a heavier car but the brakes feel better and seem to stop it better. I drive Class 2 trucks that donít feel much worse than the Omega!

I have bled them and it improved them, but not as much as I had hoped it would
« Last Edit: 11 January 2019, 07:27:23 by JimmyR »
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tunnie

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Re: Astra H SRi 2.0 Turbo brakes on Omega?
« Reply #8 on: 11 January 2019, 10:15:55 »

The pedal is progressive, allowing smooth braking, due to type of car it is. Omega was always aimed at motorway mile muncher and allowing a smooth drive.

Stamp hard on them and it stops, MotherT always said her Omega brakes were poor, until I demonstrated that stamping on the pedal as per an emergency it stops bloody quick!

3.2 here, no complaints with brakes.
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polilara

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Re: Astra H SRi 2.0 Turbo brakes on Omega?
« Reply #9 on: 11 January 2019, 12:34:25 »

The pedal is progressive, allowing smooth braking, due to type of car it is. Omega was always aimed at motorway mile muncher and allowing a smooth drive.

Stamp hard on them and it stops, MotherT always said her Omega brakes were poor, until I demonstrated that stamping on the pedal as per an emergency it stops bloody quick!

3.2 here, no complaints with brakes.

Is it really so that there is "Emergency Mode"?

I asked this in topic below but,
ę Reply #12 on: 28 December 2009, 12:53:44 Ľ (Andy B):"No variation of Emergency Brake Asssit on an Omega."
https://www.omegaowners.com/forum/index.php?topic=74340.0;all

Did he mean that the pedal is not "Progressive"? Perhaps language problem for me only. However, I am not happy with the brakes of my Omega, my Astra J has much better...

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Doctor Gollum

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Re: Astra H SRi 2.0 Turbo brakes on Omega?
« Reply #10 on: 11 January 2019, 13:15:54 »

Decent pads and fresh fluid make a world of difference...

Trouble is very few people/garages actually bother to get the old fluid out of the calipers, so you only end up with alot better rather than the best it can be...

Even Police Omegas have standard brakes, so they are clearly up to the job  ;)
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JimmyR

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Re: Astra H SRi 2.0 Turbo brakes on Omega?
« Reply #11 on: 11 January 2019, 13:30:02 »

The pedal is progressive, allowing smooth braking, due to type of car it is. Omega was always aimed at motorway mile muncher and allowing a smooth drive.

Stamp hard on them and it stops, MotherT always said her Omega brakes were poor, until I demonstrated that stamping on the pedal as per an emergency it stops bloody quick!

3.2 here, no complaints with brakes.

To the first point, I donít think that that is particularly the case.


And if everyone else has good brakes, it must just be mine that are rubbish
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Doctor Gollum

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Re: Astra H SRi 2.0 Turbo brakes on Omega?
« Reply #12 on: 11 January 2019, 13:34:01 »

Clearly not driving it properly  :D
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Keith ABS

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Re: Astra H SRi 2.0 Turbo brakes on Omega?
« Reply #13 on: 11 January 2019, 14:50:54 »

 Poor quality pads?
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polilara

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Re: Astra H SRi 2.0 Turbo brakes on Omega?
« Reply #14 on: 11 January 2019, 15:16:28 »

The pedal is progressive, allowing smooth braking, due to type of car it is. Omega was always aimed at motorway mile muncher and allowing a smooth drive.

Stamp hard on them and it stops, MotherT always said her Omega brakes were poor, until I demonstrated that stamping on the pedal as per an emergency it stops bloody quick!

3.2 here, no complaints with brakes.

To the first point, I donít think that that is particularly the case.


And if everyone else has good brakes, it must just be mine that are rubbish

Is it progressive?
« Last Edit: 11 January 2019, 15:18:04 by polilara »
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