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VN91SX
Fully Licenced
344 Posts
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 Posted - 02 Apr 2009 : 6:11:34 PM
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Hi guys!
I am in the process of looking for new VN Group A brakes for my car. I am not interested in the cheaper VT upgrade as this has many problems, the brake booster and master cyclinder don't fit too well and can in fact require bashing of the strut tower to make them fit (which aint happening in my engine bay), and the whole engineer certificate/defect issue. The Group A brakes will not require an engineers certificate as they were an option for the VN, and they fit under 17 inch wheels. What sounds like a fair price for 330mm front discs, twin spot calipers, braided lines, and the good old one inch so that my brake pedal doesn't sit on the floor lol?
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leebo
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495 Posts
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Posted - 03 Apr 2009 : 10:00:46 AM
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I have been into 1000 stores just last week looking to do what you are doing VN91sx and they all don't know what I'm talking about and they are also salesman too.
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I'll show you the Rick James cell. It's superfreaky!. |
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crazybiker
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141 Posts
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Posted - 03 Apr 2009 : 2:43:51 PM
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| The group A brakes are just the V8/ S-Pack brakes, I'm pretty sure. |
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VNSVLE
Forum Moderator
1316 Posts
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Posted - 03 Apr 2009 : 3:07:00 PM
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| They are the same 330 mm disc's with twin piston finned calipers as the SV5000 has. These are not alot different to the later model 330mm upgrades. I would be going the later model upgrade with the VN 1 inch master cylinder which i believe was on the v8's. |
What's the difference between understeer and oversteer?
Understeer is when the driver is scared.
Oversteer is when the passenger is scared. |
Edited by - VNSVLE on 03 Apr 2009 3:08:00 PM |
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VN91SX
Fully Licenced
344 Posts
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Posted - 03 Apr 2009 : 3:11:28 PM
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| I have got one quote on the Group A brakes. Front 330mm DBA slotted rotors, braided lines, and genuine C4 two spot calipers and pads $1400. Rears included for $1800 in total. The Group A brakes were only an option on the VN Group A V8, which had 17" wheels as standard. |
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leebo
Fully Licenced
495 Posts
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Posted - 03 Apr 2009 : 9:53:46 PM
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| 330mm is pretty big the new HSV's are 365mm. |
I'll show you the Rick James cell. It's superfreaky!. |
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crazybiker
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141 Posts
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Posted - 04 Apr 2009 : 09:30:53 AM
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330MM is HUGE.
The standard 6 brakes were 270MM
The standard 8 brakes were 290MM |
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VN91SX
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344 Posts
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Posted - 04 Apr 2009 : 2:27:12 PM
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| I just need to "stop" boys! lol. The 330mm are huge, and i will be getting them. They were the biggest brakes Holden had for years until the 365mm ones came along. Holden aren't known for offering strong brakes, with Ford being known to be streets ahead in this aspect, but the 330mm brakes have a very strong reputation. |
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leebo
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495 Posts
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Posted - 04 Apr 2009 : 3:38:53 PM
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Yeah and without the ABS there's no point going to big if you know what i mean.
Get slotted rotors not cross drilled. Reason being is slotted with discard a bit of heat and water the cross drilled ones are better in the short term but after some heavy use will crack because they drill the holes after they make them which ruins the strength of them.
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I'll show you the Rick James cell. It's superfreaky!. |
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VN91SX
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344 Posts
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Posted - 04 Apr 2009 : 6:33:01 PM
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| Yeah the kit im getting will have DBA 4000's that are slotted, not cross drilled. |
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leebo
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495 Posts
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Posted - 04 Apr 2009 : 6:35:35 PM
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| that's good too. |
I'll show you the Rick James cell. It's superfreaky!. |
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VNSVLE
Forum Moderator
1316 Posts
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Posted - 05 Apr 2009 : 2:33:10 PM
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the 330mm disc's were first on the group a yes but the calipers were the same as the one's originally fitted to the SV5000 which are actually heavy duty Corvette ZR-1 twin piston calipers.
Here is a bit of useless/useful information about the SV5000 that some may/may not know ( well I didn't know  ) the SV5000 came out in Rose Grey, SV Racing Green, Ruby Red, Imperial Blue and Alpine white.
Sorry for hijacking your thread buddy 
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What's the difference between understeer and oversteer?
Understeer is when the driver is scared.
Oversteer is when the passenger is scared. |
Edited by - VNSVLE on 05 Apr 2009 2:42:58 PM |
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leebo
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495 Posts
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Posted - 05 Apr 2009 : 4:47:01 PM
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| That's an idea you could get Vn V8 brakes 290mm for the rear and 330mm twin pistons for the front straight bolt on no mucking around or defect. |
I'll show you the Rick James cell. It's superfreaky!. |
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VN91SX
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344 Posts
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Posted - 05 Apr 2009 : 5:50:59 PM
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| The full Group A kit comes with 290's for the back. |
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leebo
Fully Licenced
495 Posts
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Posted - 05 Apr 2009 : 7:32:36 PM
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| show wat i know lol that will work fine |
I'll show you the Rick James cell. It's superfreaky!. |
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VN91SX
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344 Posts
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leebo
Fully Licenced
495 Posts
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Posted - 06 Apr 2009 : 1:52:26 PM
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| Hey man have a read of street commodores magazine issue 151 i think it is has this nice clean VN with the brakes you want looks good. |
I'll show you the Rick James cell. It's superfreaky!. |
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leebo
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495 Posts
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Posted - 10 Apr 2009 : 12:50:20 PM
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Hey sorry to be a broken record but next week after i finish my suspension I'm going to upgrade my brakes.
I'll be honest i don't have the same budget for the brakes as Vn91SX but i still wana do it properly.
Would slotted DBA 290mm on the front and Slotted DBA 270mm on the back be a good brake balance and performance. I would plan to do this with soft compound brake pads maybe Bendex ultimates with the same standard caliper and bleed the system.
Obviously this will be better braking but does anyone think buy much.
I have been quoted $130each disc for the front and $117 for the rear plus $50 for each pair of brake pads. |
I'll show you the Rick James cell. It's superfreaky!. |
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VN91SX
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344 Posts
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Posted - 10 Apr 2009 : 6:17:35 PM
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You are just about halve way to purchasing the VN Group A brakes for the front with braided lines ($1400). I asked about a similar upgrade leebo. Those 290mm are not much bigger than the standard disc. The brake calipers will still let you down. I asked about the Bendi Ultimate, and i was told that you wont notice much of a difference (this has come from 2 sources), as you need a bigger caliper to maximise the performance of the ultimates. I already have bendix on mine, but the fact remains that our poor brakes would probably be out performed by sticking your feet through the floor (Flinstones style) to stop the car. Its a fair bit to spend for a marginal improvement, where as if you just go the front Group A option, the braking performance will improve tenfold.
I think with the option you are suggesting leebo, the most value you will get out of them would be the fact that you have a set of fresh looking discs on your car. In the scheme of braking options, the Group A brakes are well priced. My brother has a GT Falcon, and to get the 6 spot Brembo factory option brake upgrade, it cost him over 5 grand. They are monster brakes though, and they cut a nasty stance behind his rims. |
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leebo
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495 Posts
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Posted - 10 Apr 2009 : 7:31:15 PM
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Yeah your right i think they may just look nice. Why do you need braided lines what is that?
I lay out the Q's like this:
Are they VS single piston caliper any better?
Do the VN SS have twin pistons?
What other model can i get twin pistons from second hand to save money?
You don't have to upgrade the rear calipers I'm told but discs and ultimate's are beneficial I'm told.
Will slotted 270mm go on the back no haste and likewise with slotted 290mm on the front?
sorry to hit you with so many but please answer what you know if you want cheers man |
I'll show you the Rick James cell. It's superfreaky!. |
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VN91SX
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344 Posts
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Posted - 10 Apr 2009 : 9:19:15 PM
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| The braided lines replace the rubber lines that feed the calipers with brake fluid. Rubber lines expand under pressure, so you lose braking efficiency and performance. Braided lines don't expand, and thus will maximise your braking set ups potential. |
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leebo
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495 Posts
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Posted - 10 Apr 2009 : 9:37:50 PM
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Okay so basically what I'm doing is a scaled down version your going 330 and 290 and I'm going 290 with 270 and twin piston caliper and braided lines.
So you have to get HSV cant use SS can you are they no different?
Look like i have a bit more saving to do then. |
I'll show you the Rick James cell. It's superfreaky!. |
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lemusa
Fully Licenced
193 Posts
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Posted - 14 Apr 2009 : 8:31:08 PM
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| Yeah save dude, worth it. Ive put v8 front brakes in my v6, kinda better but il be doin it properly after driving a mates wagon with similiar setup to vn91sx and **** me its neckbraking compared to stock. hes also got adjustable brake bias which is fun to play with lol |
Just be thankful you got two legs to stand on and hands to grab sh*t with! |
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leebo
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495 Posts
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Posted - 14 Apr 2009 : 9:22:13 PM
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I still haven't got the picture yet is the V9 brakes the 290mm with same calipers.
So did Holden decide when we give them 40kw more lets just give them an extra 20mm of disc that should do the job just fine now crank up the barby mateys. |
I'll show you the Rick James cell. It's superfreaky!. |
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lemusa
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193 Posts
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Posted - 14 Apr 2009 : 11:14:05 PM
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| Put simply...Holden build cars that go, not cars that stop |
Just be thankful you got two legs to stand on and hands to grab sh*t with! |
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leebo
Fully Licenced
495 Posts
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Posted - 15 Apr 2009 : 1:13:52 PM
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| You Aussies lol |
I'll show you the Rick James cell. It's superfreaky!. |
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trizo
Forum Moderator
3091 Posts
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Posted - 15 Apr 2009 : 2:13:35 PM
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| no racism please lmao |
3 can keep a secret if 2 are dead |
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leebo
Fully Licenced
495 Posts
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Posted - 15 Apr 2009 : 3:39:16 PM
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Nah just joking mate having a lend of ya.
relax mate i like all you guys |
I'll show you the Rick James cell. It's superfreaky!. |
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lemusa
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193 Posts
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Posted - 15 Apr 2009 : 5:04:35 PM
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| hey im not aussie at all thankyou very much! |
Just be thankful you got two legs to stand on and hands to grab sh*t with! |
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leebo
Fully Licenced
495 Posts
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Posted - 15 Apr 2009 : 7:03:23 PM
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| If anyone want to talk about brakes the topic is still open. |
I'll show you the Rick James cell. It's superfreaky!. |
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