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16

Omega General Help / Exhaust Size? Info.

« on: 29 January 2008, 00:58:16 »

Hey guys I need some help figuring out the size of the 3.0L V6 Exhaust.

What size is it... and is it stainless steel. I am planning to do an X pipe at the front close to the brake points after the cats... and from there I plan on removing the two mufflers before the axle... and maybe replacing them with smaller resonators....

How much louder do you guys think it will get if I get rid of them... is it going to be unbearable... inside the car?

Any recommendations, anyone done this sort of thing..

17

Omega General Help / Re: Do Cat,s Die

« on: 04 December 2007, 17:28:07 »

Ummm I may be wrong but I think that this belongs to the TECHNICAL Forum...

you might get more help there...

18

Omega General Help / Re: H&R Hubcentric Wheel Spacers.

« on: 29 August 2007, 23:40:40 »

Wow so no one knows anything about any of these? :-/

19

Omega General Help / H&R Hubcentric Wheel Spacers.

« on: 29 August 2007, 00:12:29 »

Hey guys any of you use these on your Omega? I have a set of 5 spoke Astra SRi wheels on my Omega but I hate how they tuck under the fenders. There is almost an 1.25" gap between the tire and where the quarter panel folds in so I got enough room for a 25mm spacer on each wheel.

Now the real question would be what would happen to the Wheel Bearings if I use such spacers on the rear end. The wheels have a 37mm offset and they are 18x7.5 so with these spacers my offsets would go to 12mm. I am worried about the stress these are going to put on the hubs. The DRA series bolt to the hub and then the wheel bolts to the spacers so the studs are going to be fine without increased stress but the Bearings are what worries me.

Also who has wide offset wheels on their car that match what I am looking for. Any input on this would help. Thanks Guys.

20

Car Parts, bits For Sale & Wanted / Re: V8 Big Brake UPGRADE 220$

« on: 22 March 2010, 17:47:38 »

Alright its not as bad as you guys think...

I have only gotten ABS to kick in because I was full on the brakes and there was probably crap on the road surface that caused it in first place...

ABS kicking in does not increase your stopping distances.
A locked wheel thats sliding on the surface has less coefficient of friction then one that is rolling on it...

Only time a non ABS vehicle stops faster then ABS one is on a gravel surface where some of the gravel piles up in front of the wheel and acts as a brake.

My experience with these brakes is this...

Brakes are designed to convert kinetic energy into heat via friction between the brakes and the rotor.

So any of the pad you choose will be significantly larger compared to stock.
Clamping forces from the larger twin caliper wtih 44mm pistons will provide the necessary force to squeeze the larger pads onto the rotors.

As a result you have more heat dissipation due to the larger pad/caliper combo and more effective braking.

The entire system is also much lighte which shaves overal vehicle wheit and that helps in many other ways.

I used to heat up my stock brakes to the point where they would fade and refuse to stop... and that was in normal traffic conditions with lots of stop and go...
With the new brakes that hasn't happened yet.
I also took a cross country trip going over many mountains sometimes climbing 10,000ft and then dropping down to 2000 on the other side, riding the brakes etc, and never even one time did they fade on me...

Not sure rear upgrades are necessary, if you do the fronts, the 40mm rears vs the 42mm will likely not provide significant difference 85% of the braking is done on the front...

I think the combo with Dual piston front calipers and 42mm rears is a nice one since it features full vented brakes all around.

I should mention that braking improvements with the larger set up are significant and quite enough to stop the work horse under the hood... now for a V8 car these will never be enough.

21

Car Parts, bits For Sale & Wanted / Re: V8 Big Brake UPGRADE 220$

« on: 21 March 2010, 19:26:55 »

Yes they will, Monaro is same as GTO... but the C5 is has a bigger pad!

22

Car Parts, bits For Sale & Wanted / Re: V8 Big Brake UPGRADE 220$

« on: 21 March 2010, 18:01:50 »

Quote

Hi, I take it the price for postage is to the uk? If so I am very interested, how's big exactly are these brakes? Think omega v6s are 296mm standard, cheers Al

Yep these fit perfect on the 296mm rotors, if your car has smaller rotors then they wont fit, you will have to upgrade to the bigger rotors. The hubs should be the same.
I will set up another package for you and I will let you know when its ready for shipping.

23

Car Parts, bits For Sale & Wanted / Re: V8 Big Brake UPGRADE 220$

« on: 20 March 2010, 23:23:30 »

Yikes 1800 EURO for the V8 brakes no way, for that kind of cash you can get yourself a nice set of 6 or 8 piston BREMBO with custom brackets and new rotors with floating discs...

That V8 car is nice though!

24

Car Parts, bits For Sale & Wanted / Re: V8 Big Brake UPGRADE 220$

« on: 20 March 2010, 22:23:18 »

Seems to me the monaro brake pads are slightly larger then the C5 units by 1mm or so... in length and a bit more in width!

Quite interesting...

25

Car Parts, bits For Sale & Wanted / Re: V8 Big Brake UPGRADE 220$

« on: 20 March 2010, 16:58:08 »

Someone here tried them with 16" wheels and they fit just fine, a 15 will probably not fit, its a bit too small, but the interesting part is the caliper doesnt stick out much past the OEM one, just look at the 1st picture...

26

Car Parts, bits For Sale & Wanted / Re: V8 Big Brake UPGRADE 220$

« on: 20 March 2010, 05:51:35 »

This is the first of 4 kits I have ready for sale so no worries, I will have the rest ready within a few weeks.

Shipping sux I know but we will work it out.

I have collected a few pairs with low low miles on them I know they are hard to get over there.

If you guys want C5 pads let me know so I can preorder them.

27

Car Parts, bits For Sale & Wanted / V8 Big Brake UPGRADE 220$

« on: 19 March 2010, 17:46:13 »

This is a complete bolt on kit from the GTO/Monaro, comes from the 5.7L V8 cars.

I have this kit installed on my own car, and I can tell you from experiance that the stopping distance was reduced by at least 5-10ft...
Also during panic stops the ABS has to kick in because the brakes are quite strong and lock the front wheels up if you really step on them...

Brakes installed on my car...

These brakes bolt right on the Omegas. Please compare the pictures of the brakes posted with the ones on your car, if they are the same then these will fit GUARANTEED.

The kit has Steel carrier, and Aluminium Caliper that features a dual piston design.
Calipers come from a car that had only 6000mi.
The OEM pad that comes with these is around 40% larger and covers a much larger area of the OEM rotors...

The kit comes complete with the following parts:

2 Carriers
2 Calipers
8 Slider Pins
4 Mounting bolts from caliper to carrier.
0 Mounting bolts Carrier to hub, reuse your old ones.
2 Bojno bolts
2 Hoses 2" longer to accomodate the extra length on the calipers.
4 anti rattle clips.
2 Bleeder screws.

Kit will include OEM brake pads but they are used 75% life left.
Price for the kit is 220$ USD.
Shipping will be around 45$ USD
Total 265$

For extra 50$ I will source a set of C5 Corvette brake pads which are 25% larger.