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  1. #1
    Join Date
    May 2016
    Location
    Auckland, New Zealand
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    1,162

    Cam upgrade on standard boost LSA

    2014 GTS

    Looking at upgrading the cam (Harrop H02?) and installing 1 7/8 headers with the factory catback at the same time. Currently mods are Harrop CAI and lid spacer. My question is, will I need to do injectors with this setup if I keep the factory pulleys/boost?

    Thanks in advance
    2014 Gen-F GTS
    2017 VF2 SS-V Redline Hackwagon

  2. #2
    Join Date
    Feb 2014
    Posts
    5,039
    It's going to be a wait and see type scenario if needing injectors.
    You are likely to drop boost pressure, and hopefully the cam picks up power without needing the boost turned up.

    Most people do cam, boost, injectors at the same time so it's almost untested water.

    Maybe Harrop have done a cam only upgrade on a stock boost application and can advise the HP gain and if injectors were or were not needed.

    I think if you do proceed with this, without turning up the boost and with the stock injectors many people on the forum will be interested to see how much HP you actually gain.

    2014 HSV VF GTS
    2017 HSV GTSR
    http://www.facebook.com/ForcedInductionInterchillers
    Australia's Fastest 6.2L 1900 LSA VF GTS with a Stock Bottom End
    9.700 @143.14mph 17/July/2017
    V-Box Results 0-100km/h in 2.47sec

  3. #3
    Join Date
    May 2016
    Location
    Auckland, New Zealand
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    I wondered if that would be the case. I'm currently happy with the power the car makes, I'm just wanting to make small changes one by one as I find that more enjoyable than doing the big bang approach

    I know I'll get flamed for saying this, but I'm really only wanting to do a cam for the sound
    2014 Gen-F GTS
    2017 VF2 SS-V Redline Hackwagon

  4. #4
    Join Date
    Jan 2004
    Location
    Perth, WA
    Posts
    7,508
    Quote Originally Posted by NZ EVLHSV View Post
    I know I'll get flamed for saying this, but I'm really only wanting to do a cam for the sound
    I assumed that was your reasoning. You'll likely make a similar power figure (possibly more) with a higher boost level and standard cam compared to the cam with lower boost. Changing pulleys is a lot cheaper than changing the cam so it really only comes down to wanting the sound or a dramatic change in power delivery characteristics

  5. #5
    Join Date
    Feb 2014
    Posts
    5,039
    You can have a tuner alter the tune of the stock cam at idle to make it have a lumpy cam sound.

    2014 HSV VF GTS
    2017 HSV GTSR
    http://www.facebook.com/ForcedInductionInterchillers
    Australia's Fastest 6.2L 1900 LSA VF GTS with a Stock Bottom End
    9.700 @143.14mph 17/July/2017
    V-Box Results 0-100km/h in 2.47sec

  6. #6
    Join Date
    May 2016
    Location
    Auckland, New Zealand
    Posts
    1,162
    Ok thanks, will talk to my tuner. Iíll end up doing pulley injectors cam full exhaust chiller etc over the next few years, just need to work out the order I do them in


    Sent from my iPhone using Tapatalk
    2014 Gen-F GTS
    2017 VF2 SS-V Redline Hackwagon

  7. #7
    Join Date
    Feb 2015
    Location
    Blue Mountains
    Posts
    348
    Quote Originally Posted by NZ EVLHSV View Post
    Ok thanks, will talk to my tuner. Iíll end up doing pulley injectors cam full exhaust chiller etc over the next few years, just need to work out the order I do them in


    Sent from my iPhone using Tapatalk
    The order is all at once......:
    Piece by piece is expensive!!!!!
    Here I am yr on and Iíll be doing a cam next...
    So that would be another tune and more workshop time....
    Think that will be 4tunes then
    Hyundai Accent 1.6 manual (current PB 590kms til fuel redlight!!!)
    GenF2 30yr Senator (stock cam/heads 10.63@131.99)
    Previous GenF my15 Gts (was fastest stock cam/heads 10.68 @ 130.3)
    Previous VXR8 (vxr
    Previous GTS-r (uk)

  8. #8
    Join Date
    Jun 2013
    Location
    Sth West Syd ��
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    1,481
    Quote Originally Posted by NickGts View Post
    The order is all at once......:
    Piece by piece is expensive!!!!!
    Here I am yr on and Iíll be doing a cam next...
    So that would be another tune and more workshop time....
    Think that will be 4tunes then
    110% agree with Nick. Save up and get it all done at once, or it will cost you a lot more in touch up tunes alone


    Sent from my iPhone using Tapatalk

  9. #9
    Join Date
    Nov 2011
    Location
    North West NSW
    Posts
    336
    Townsville Mechanical reported on their Facebook page that they cammed at standard boost Genf Gts. 360rwkw on 7.5psi.
    Previous 2011 MY 12 VE R8 Maloo -Perfect Blue
    Current 2013 VF GTS W507 - Herron White

  10. #10
    Join Date
    May 2016
    Location
    Auckland, New Zealand
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    1,162
    Quote Originally Posted by sdtash View Post
    Townsville Mechanical reported on their Facebook page that they cammed at standard boost Genf Gts. 360rwkw on 7.5psi.
    Had a quick look on their FB page and couldn't find that one, but did find this post...
    "We have this tidy VF GTS in for a mild cam package and boost upgrade. We’ve made 421rwkw on 10psi which is as far as the stock injectors will allow"

    Sounds like that one might be a bit close to the edge?
    2014 Gen-F GTS
    2017 VF2 SS-V Redline Hackwagon







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