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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.

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  1. Apr 17, 2019 #41
    lmoengnr

    lmoengnr Well-Known Member

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    No, it looks about the same clearance on a VE Redline with the standard alloy's.
     
    lmoengnr, Apr 17, 2019
    #41
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  2. Apr 17, 2019 #42
    gfl

    gfl Member

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    Don’t sweat it. Lots of miles, no dramas with a credit card between wheel and calliper. I’d post picture but cannot find a way to reduce file size on phone.
     
    gfl, Apr 17, 2019
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  3. Apr 17, 2019 #43
    Skylarking

    Skylarking Well-Known Member

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    How much do wheel spokes actually flex? Not much I’d guess.

    But consider the spoke to caliper clearance in the standard redline brembo setup.

    My MSE has 5 or 6 mm spoke to caliper clearance at the front wheels and 15mm at the back wheels. I’d think anything much less than the standard setup, especially just 1mm, would be concerning unless you can answer the question how much do wheel spokes deflect during max braking effort from max speed into a tight left and right corner.
     
    Skylarking, Apr 17, 2019
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  4. Apr 17, 2019 #44
    Skylarking

    Skylarking Well-Known Member

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    But not all wheels are the same. Drop forged are supposedly stronger and lighter than various types of cast wheels. Question is, will the different construction impact wheel flex?
     
    Skylarking, Apr 17, 2019
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  5. Apr 17, 2019 #45
    jono67

    jono67 Active Member

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    Yeah that's the million dollar question, how much do they flex!!! I won't be doing track days, but there are the odd occasions when I give it a bit through tight corners.

    The MSE's have the HF-20 rims right? They were the wheel I was going to purchase, but after having worked out mine had a 48 offset decided to keep them.
     
    jono67, Apr 17, 2019
    #45
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  6. Apr 17, 2019 #46
    jono67

    jono67 Active Member

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    So gfl your Redline only has that much clearance??? Are they standard rims and brakes? Prior to fitting my brakes, I had looked at Redlines in the street and noticed the clearance was not much, but a good mm or two more than I have.
     
    jono67, Apr 17, 2019
    #46
  7. Apr 17, 2019 #47
    3rspecB

    3rspecB Well-Known Member

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    Here's a quick pic of Front Brembo caliper behind cast MY17 VF2 19" Redline rims.

    My ruler showed 4mm clearance.

    Resized_20190417_132347.jpeg
     
    Last edited: Apr 17, 2019
    3rspecB, Apr 17, 2019
    #47
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  8. Apr 17, 2019 #48
    jono67

    jono67 Active Member

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    Thanks for that mate, yeah that looks about right (ie looks like 4mm). Seems to be varying gaps depending on which style of rim, as I've seen some Redlines which look closer than that.

    My mechanic who fitted the Brembos for me agreed that the clearance was not great, but he reconed that unless a wheel bearing goes, in his opinion he thought I'd be ok.
     
    jono67, Apr 17, 2019
    #48
  9. Apr 17, 2019 #49
    Skylarking

    Skylarking Well-Known Member

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    Yep, million dollar question which i'm sure Holden engineers know the answer to for the various wheels they've used on their cars.

    Whatever Holden fitted to my MSE is what they have on them. All i can say for certain is that they are round 20" diameter and get very dirty very quickly o_O
     
    Skylarking, Apr 17, 2019
    #49
  10. Apr 17, 2019 #50
    Ron Burgundy

    Ron Burgundy Well-Known Member

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    If it does not scrape it's good. No problem to solve.
    If it scrapes report back and I am sure we will all have something to suggest :)
     
    Ron Burgundy, Apr 17, 2019
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  11. Apr 17, 2019 #51
    gfl

    gfl Member

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    3 piece Simmons over standard HSV APs. Pic below (yes I know they are pretty grubby).
     

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    gfl, Apr 17, 2019
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  12. Apr 17, 2019 #52
    panhead

    panhead Well-Known Member

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    I don't believe it's a problem, I've had miniscule clearance with some rims and never had the caliper come in contact with the centre spokes.

    It takes a lot off force to flex a quality rim.

    If it does rub you'll feel it through the steering wheel and should slow down accordingly then you'll need to shave a bit off the caliper to correct the rub mark and have it repainted.




    .
     
    panhead, Apr 17, 2019
    #52
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  13. Apr 17, 2019 #53
    jono67

    jono67 Active Member

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    Geez, yep, that's pretty much what I have gfl. Appreciate the pic mate, you have made me feel at ease a littleo_O
     
    jono67, Apr 17, 2019
    #53
  14. Apr 17, 2019 #54
    jono67

    jono67 Active Member

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    Cheers panhead. I guess I'm about to find out if I'll have any issues as I've got a 1500km round trip coming up over Easter. All highway km's so won't exactly be putting much sideways force through the wheels though.
     
    jono67, Apr 17, 2019
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  15. Apr 23, 2019 #55
    jono67

    jono67 Active Member

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    Just an update after returning from my trip. No clearance issues to report. Mainly dual carriageway-freeway, but 200km of the trip was on some pretty ordinary (sometimes windy) and bumpy country roads.

    I did chat with panhead who didn't think I'd have an issue, but he suggested I speak with a guy who used to manufacturer wheels here as he had dealt with him in the past to get his thoughts. This guy (and panhead) didn't think I'd have any issues even though the clearance is small. For peace of mind he said it wouldn't be an issue if I had a mm or two machined off the rear of the spokes locally. Given their advice, and my road trip, I'd prefer to leave the wheels as is, so for now that is what I'll be doing.

    Below is a better view of the clearance (or lack of), pretty tight I know. As you can see, it really is just that local pinch point closer to the hub. Given these wheels are powder coated as opposed to Nenad's which aren't, it looked like he may have slightly better clearance than mine due to that. I noticed a chip in the coating on the inside of my rims the other day when I had them off, and there is what looks like about 1/2 to 1mm thickness in coating.

    Wheel close up.jpg
     
    jono67, Apr 23, 2019
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  16. Apr 25, 2019 #56
    Rolfie

    Rolfie New Member

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    Rolfie, Apr 25, 2019
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  17. Apr 25, 2019 #57
    Rolfie

    Rolfie New Member

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    I'm very new to the Forum so please indulge me a little. On the upside I've just recently converted from a long list of hipo GT Falcons to finally sample a product from the other side of the fence. And it was a great move!! Now here's my question. I have a VFII LS3 Redline Auto Commodore sedan fitted with the OE 4 piston Brembo's at all four corners. BUT I want to upgrade the rotors all round with top of the range DBA kit (already sourced). And upgrade the front red 4 piston Brembo callipers with the 6 piston red Brembo's as fitted to the VE's. My problem is I can't find the 6 piston callipers anywhere and my go to Holden HSV parts outlet don't "seem" willing to help me. I've already got the larger DBA T5000 two piece slotted rotors. I'm just trying to locate the red 6 piston callipers. Starting to feel like I'm p*** ing into the wind. Is there anyone out there that can provide some help in this search?
     
    Rolfie, Apr 25, 2019
    #57
  18. Apr 25, 2019 #58
    Ron Burgundy

    Ron Burgundy Well-Known Member

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    Holden does not sell 6 piston brembos. They never came on VE or VF.
    Silver VE calipers are the same as VF calipers..

    People normally get 6 piston calipers from the states.

    https://zzperformance.com/products/g8-front-brembo-6-piston-caliper-brake-kit

    PS. You will also need bigger rotors for them...
     
    Last edited: Apr 25, 2019
    Ron Burgundy, Apr 25, 2019
    #58
  19. Apr 25, 2019 #59
    kleanphil

    kleanphil Active Member

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    Wow , the price of that kit in AUD is only a few hundred more than what I paid just for the DBA discs I bought for my 6 pot Brembo's , then I paid that again for the calipers , I must be missing some thing , would like to know what delivery would be for that kit .
     
    kleanphil, Apr 25, 2019
    #59
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  20. Apr 25, 2019 #60
    kleanphil

    kleanphil Active Member

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    I think HSV used AP and Harrop calipers , I'm not sure which come in 6 pot , I think both were 4 pot
     
    kleanphil, Apr 25, 2019
    #60
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