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V6 Peformance Parts

Discussion in 'Mace Engineering' started by MACE, Mar 30, 2009.

  1. EYY

    EYY Well-Known Member

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    Think they kinda missed the question, but no you won't.
     
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  2. losh1971

    losh1971 Well-Known Member

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    Hey Mace, will i need a torque wrench to fit my new rockers? I have a ft pound one. I just need to figure out what i need to bring into Town if i am not home when I fit them. I keep a spanner and socket set in Town but not much else. Also will i need any GM thread sealant to lock the bolts?
     
  3. EYY

    EYY Well-Known Member

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    Do they come with new bolts or are you reusing old ones? Original ones are torque to yeild (or torque to angle depending on who you speak to). Wouldn't do any harm using a little blue loctite on them, although if they're tensioned adequately you won't have an issue. GM sealant is used where bolts go through to water and can require re-tensioning.

    I'd just use generic torque specs for whatever the thread size is (assuming 5/16 UNC or similar?). Always good to use a torque wrench as the cast iron heads are quite soft. Easier to pull threads out of cast iron that most people realise.
     
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  4. losh1971

    losh1971 Well-Known Member

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    I believe the kit comes with new bolts. I will pack the torque wrench and a 3/8 adapter, socket set is 3/8.
     
  5. losh1971

    losh1971 Well-Known Member

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    Hi Mace, i currently have Mace CAI, Mace memcal and Pacies. As you know i have HR rockers on their way. Do you offer anything else for the L27 or can you recommend anything else as a decent upgrade? Trans currently has a reamed VB, and larger boost valve. I have a Vette servo but need to slip out the trans to fit it, so may or may not happen this year, since trans is in good condition. Bored VB would be good but you have no stock and you may not build them anymore by the sounds of it.
     
  6. MACE

    MACE Well-Known Member

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    Hi losh1971,

    We are sorry for the delay in getting back to you, unfortunately, we don't offer throttle body to suit Buick anymore. There must be something in the near future, however, we don't have a firm time estimate.

    We have a CAM and CHIP package for Buick, however, given you have ordered rockers, this package wouldn't work. High ratio rockers are not suitable for use with an aftermarket camshaft unless the cam was designed for them because the excessive amounts of lift will potentially cause engine damage.

    To give you an idea of what parts we have for Buick engine, please refer to the link shown below.

    https://www.maceengineering.com.au/...ion=View&ObjectID=24418025&PageSize=30&Page=2

    Your order of high ratio roller rockers was sent out on July 5th via Express post, going by the tracking number it was delivered today.

    https://auspost.com.au/mypost/track/#/details/3BY2034902

    If you have any other questions, please do not hesitate to ask.

    Kind regards,
    Michael
     
  7. losh1971

    losh1971 Well-Known Member

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    Thanks Michael. I ended up fitting a 65mm V8 TB. Sounds like i have pretty much gone as far as i can with my NA L27. I know you don't offer them but what are your thoughts on a hi flow cat? I have Pacies and 2.5" cat back. Would a new cat be worth the 180 - 200 bucks?
     
  8. MACE

    MACE Well-Known Member

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    "Thanks Michael. I ended up fitting a 65mm V8 TB. Sounds like i have pretty much gone as far as i can with my NA L27. I know you don't offer them but what are your thoughts on a hi flow cat? I have Pacies and 2.5" cat back. Would a new cat be worth the 180 - 200 bucks?"
    Unfortunately, we have no idea on price, it could be anywhere from $100-$180. Depending on which one you are planning to install it would definitely worth, given you have installed the cold air intake.

    If you have any other questions, please do not hesitate to ask.

    Kind reg nards,
    Michael
     
  9. losh1971

    losh1971 Well-Known Member

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    Thanks Michael, I will add a Hi-flow cat, (probably 200 cel) to the list. Figure it's probably the last restriction I have, apart from the Y pipe that unfortunately needs to stay. Yes CAI, and hopefully this weekend the rockers you sent will be installed.
     
  10. EYY

    EYY Well-Known Member

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    Imo, not worth spending money on a cat - you won’t gain performance. They’re the same cat as the v8’s. Changed from factory single cat on my vs v8 to twin 2.25” cat and didn’t make any noticeable difference. Definitely won’t on the 6. Maybe a little more noise and will smell a bit more but that’s about it.

    Only other thing is a dyno tune, but still only likely to get you a few kw and not worth it on a hp per $ basis.
     
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  11. losh1971

    losh1971 Well-Known Member

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    Thanks @EYY might as well forget it then. Yeah x2 on the dyno. I already have the Mace memcal tuned for what i have already fitted plus the rockers. Definitely not worth the 800 -1000 bucks to throw it on the dyno for a tune, unless i went cam or FI. I do plan to throw it on the dyno for a run which IIRC was $100 or $150. I'm only doing that to see what the results are with the upgrades. I wish i had a fully stock VR to compare it with but I didn't really have the spare coin way back when i started changing things. Torque i know has improved as i can feel that pulling the work trailer. It has heaps more pulling power with the trailer than it used to.
     
  12. losh1971

    losh1971 Well-Known Member

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    Don't spose it's safe to drive with only one bank done and the other side stock. I have run out of light and now it is raining. Took me over 2hrs to do the drivers side. It's not a quick job like it's alluded too.
     
  13. DanielJ.NZ

    DanielJ.NZ New Member

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    Hi Mace I recently got a memcal chip for a vy manual l27 but is an l67 is there anyway i can still utilise the chip easily with ecu swap or something or am I basically just a cabbage for getting that one haha
     
  14. losh1971

    losh1971 Well-Known Member

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    You need to send it back and have them swap it as it will be no use to you.
     

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