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Brake upgrade from SSV to SSVR Brembo's - Take 2

Discussion in 'VF Holden Commodore (2013 - 2017)' started by jono67, Mar 12, 2019.

  1. panhead

    panhead Well-Known Member

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    My understanding is its just the master cylinder that is different not the booster.

    This is the old info I have on file.


    VF2 SS & SSV – Standard Factory Brakes

    Front

    Twin Piston

    Piston Sizes 2x42mm

    Non Asbestos Organic Pads

    321x30mm Rotor

    ----------------------------------------------

    VF2 SS & SSV – Factory Upgrade – Front Only

    Front

    Single Piston

    Piston Size 1x60mm

    Low Metallic Pads

    345x30mm Rotor

    Plus Upgraded Master Cylinder

    -----------------------------------------------

    VF2 SSV Redline – Standard Factory Brakes

    Front

    4 Piston Brembo

    Piston Sizes are 2x40mm & 2x44mm

    Low Metallic Pads

    355x32mm Vented Rotors

    Rear

    4 Piston Brembo

    Piston Sizes are 2x28mm & 2x32mm

    Low Metallic Pads

    360x28mm Vented Rotors

    Upgraded Master Cylinder is standard fitment





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  2. Smashfist

    Smashfist Active Member

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    I checked the parts catalogue when I did my upgrade, at the time the booster was the same, the master was a different p/n.
     
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  3. jono67

    jono67 Member

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    Hi guys, about to hit the button on this upgrade, but before I go spending $ on new HSVi HF-20 wheels to fit the Brembos, can anyone answer the following question:

    Stamped on the inside of my current rims (so this is a May 2015 Series 1 SSV) it has the size stamped thus: 19x8.5 JIS48

    Holden part number for these rims are 92250208GM.

    So question is, would the 48 by any chance represent the offset as I cannot find anything relating to the JIS48 bit?

    According to the following website, my rim offset should be 40, not 48 like the Redline rims:

    https://www.wheel-size.com/size/holden/commodore/2015/#trim-60-audm-362

    But, I did my own measurements and I work out that the offset is actually 48. I have an inquiry in with Holden technical to find out if the 48 is the offset, but am still waiting (and waiting) for a reply.

    If mine do actually have an offset of 48, that gives a definitive answer to age old question as to whether SSV wheels fit Brembo brakes. I know I think Cashie had a thread about them fitting under his wheels, but the wheels he had on his car differed to that on mine.
     
  4. jono67

    jono67 Member

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    For those interested, I finally got an answer back from Holden, this is what the 'JIS 48' means:

    "JIS stands for Japanese Industrial Standard. This is the governing body in Japan that control and stipulate standards for Industry in quality and manufacture. These standards are often recognised worldwide. JIS 48 relates to metal and metal alloy as used in the wheel".

    So there goes my theory. I have emailed back and asked them for the offset of my rims, so even though I worked it out at 48 (that was with the tyre on unfortunately, so could not accurately work it out from the dead centre of the rim), I am assuming that's wrong, and they will be 40.
     
  5. Ron Burgundy

    Ron Burgundy Well-Known Member

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    Stock SSV VF wheels WILL definitely clear ssv redline brembo brakes...
     
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  6. jono67

    jono67 Member

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    Thanks Ron. I did get an email back from Holden confirming my rims are a 40 offset. Whilst they might clear the Brembos, I'm worried that the small clearance there might be, might not be enough and I don't want any issues once I've put them on.

    Anyhoo, there was a thread on here a couple of years ago by cashie asking members to post pics of the HSVi HF-20 wheels on their cars as he was looking at upgrading. Whilst they are almost identical to my current rims, the larger diameter does look better in my opinion along with the rebate that runs around the rim itself, so I'll still go that way I think.
     
  7. Nenad

    Nenad New Member

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  8. jono67

    jono67 Member

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    Hi Nenad, yeah I did come across your thread a while ago when researching. The clearance looked small from your pics, but if you've now done 8-9000km with no issues then perhaps it is all good.

    How do you know your wheels (they are the same as mine) are et48? According to Holden they are et40, but my measurements with the tyre on came to 48 as I said above. Forg said in your thread, perhaps they had the manufacturer keep the offset the same as the Redline wheels???
     
  9. Nenad

    Nenad New Member

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    Clearance is small, but lets be honest, there is a lot of cars that come with a mm clearance from factory, i took my wheels off and it said et48.
    dont bother calling holden, they dont know what wheel come on what car, let alone knowing the et of a wheel. lol
     
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  10. jono67

    jono67 Member

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    Yeah I have a mate who has a VFII and I looked at his clearance, it wasn't much.

    Where did it say et48, on the inside face of the spokes, or inside the rim itself (ie if you have a tyre fitted you can't see it)? There are quite a few markings stamped on the inside face of the spokes, but none of them give the et.
     
  11. panhead

    panhead Well-Known Member

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    I don’t think that info is correct.


    From what I’ve always been told the J is the symbol for the type (shape) of rim contour and is often referred to as the bead profile where the rim meets the tyre.

    J is the most common contour design for most passenger vehicles and it will be stamped into the rim after the width.

    There are a number of other contour profiles for the rim lips which all have their own designated letter.


    Symbol & Usage

    A = Bicycles, mopeds, motorcycles, scooters, vans, lorries, forklifts

    B = Old wheels up to 6" wide, sometimes found on the old VW Beetle

    D = Bicycles, mopeds, motorcycles, scooters, vans, lorries, forklifts

    E = Lorries, vans, tractors (front wheel drive) with "semi-drop" wheels (see below)

    F = Vans, lorries, forklifts with "semi-drop" wheels

    G, H = Vans, lorries with "semi-drop" wheels

    J = Passenger cars

    JJ = 4x4 SUVs

    P, K = Found sometimes in older cars such as VW Beetle, Jaguar

    S = Commercial vehicles with "flatbase" wheels

    T, V = Commercial vehicles with "flatbase" wheels

    W = Agricultural tractors, mainly on the rear axle

    EH2 = Run Flat for some manufacturers



    The IS48 means positive 48 offset.

    ET is the most commonly used symbol but manufacturers like BMW have always used the symbol IS to indicate offset and you will also find it on other rims depending on the manufacturer.


    Here’s a couple of photos of the markings on my OEM HF-20 from my 2016 Redline.

    Front Rim
    IMG_7422a.jpg
    Rear Rim
    IMG_7432a.jpg




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    Last edited: Mar 29, 2019
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  12. jono67

    jono67 Member

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    Thanks panhead........... mmmmmm interesting eh. I do remember reading that J stood for what you posted above. It did seem coincidental that along with the rim size was the 48 at the end, which would make sense that it would be the offset.

    The reply was from somewhere within Holden technical via customer support. So do you think they purposefully gave me a BS answer to stop people doing the kind of thing I'm doing? Wouldn't put it past them. Thanks for the pics as well. I'll try to do a more accurate remeasure on the weekend, but with the info you just provided I recon you are on the money.
     
  13. Nenad

    Nenad New Member

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    20190329_132759.jpg here we go, i took my spare wheel out ( same as the ones i have on a car) IS48 is an offset marking.
     
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  14. jono67

    jono67 Member

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    Thanks for taking the time to do that Nenad, champ. So as per panheads post above, not ET48 but IS48. Your stamp is the same as mine then and in the same position, sweet. So Holden are in fact full of ito_O.

    Mmmmm, i might reconsider just sticking with current rims then (the HSVi's are nice though, but it will save me huge $).

    Appreciate your input guys.
     
  15. panhead

    panhead Well-Known Member

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    There are a lot of lazy people who can't be bothered to help out with a correct answer or say a simple 'I don't know' and of course sometimes people can just get it wrong, I've done that many many times myself.

    +48 is the 'go to offset' for Holden when it comes to late model Commodore rims and usually the only change to that will be for staggered fitments.

    I'm not aware of a +40 offset for an OEM VF Commodore rim but that doesn't mean they don't exist, it's just not something I've heard of.

    Here’s a photo of the OEM HF-20 rims with OEM 4 pot brakes.

    There are no clearance issues as Holden like most manufacturers always err on the side of conservativism for safety and longevity reasons and you could easily go 6 pot if you wished.

    IMG_3861a.jpg





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  16. jono67

    jono67 Member

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    Cheers mate, yeah don't worry, I've been caught out as well giving wrong info. As my car is the same colour as your ute (although you have since changed from the HF-20's now haven't you?), the colour combo with the HF's with the Brembos looks awesome.

    Mmmm should I start a poll as to whether I stick with my current rims and save $ or go the HF's:confused::confused::confused:
     
  17. jono67

    jono67 Member

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    Quick update guys, I decided to go with the front Brembo kit which I received today (they look awesome) from the guy selling stuff via gumtree. He was great to deal with and very helpful regardless of my 1000 questions to him, so from my experience I can recommend him.

    I also decided to keep my 19" SSV rims, so now time to fit these babies and see if they fit (Ron, Nenad and panhead give me confidence that they will), which will be end of this week or next week. Will update with a pic (hopefully) once fitted.
     
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  18. jono67

    jono67 Member

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    Ok, had the Brembo's fitted today. By the looks of mine, slightly less clearance than that of Nenad, approx 1mm on one side and between 1mm and 2mm on the other, depending on what spoke is sitting over the caliper at the time. So a bee's d#@k clearance, hopefully I won't have any dramas.

    They feel pretty bloody good I must say, and look the business, so here are some pics, hard to see on the closeup the clearance:

    VF with Front Brembo - reduced.jpg
    VF SSV wheel with Brembo close up - reduced.jpg
     
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  19. Ron Burgundy

    Ron Burgundy Well-Known Member

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    Great job mate. They look good
     
  20. jono67

    jono67 Member

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    Thanks Ron. I must admit that I am a little concerned about the clearance between wheel and caliper. Whilst my wheels might have a 48 offset, obviously the spoke design of the Redline wheels differs to give a bit more clearance than these do.

    Do you guys think I am cutting it too fine?
     

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