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Thread: whoe's removed the balance shafts

  
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    gsi-jay's Avatar
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    whoe's removed the balance shafts

    thonling of getting the kit to remove the balance shafts but wot i wanna know is it a noticible difference all i can think of as a comparision is it it similar to fitting a lightened fly wheel
    courtney stage 3 zafira,Mitsubishi evo geek mapped to 389 and 470 lb of torque

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    Enkidu's Avatar
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    I've seen a LET ticking over with these removed on a standard engine and it was smoother than mine lmfao.

    He said you can feel the difference especially up the revs.

    I will certainly be doing this mod one day along with ARP bolts.
    Arden Astra GSI - Phase 3.5

    EDS Phase 3.5 288 BHP 340 FT/LB

    Inlet cam and Dbilas manifold.

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    Ive done this, i removed mine about 3 weeks ago. The engine revs a lot quicker from very low rpm and it feels a bit more raw .
    I did feel the vibrations after i first removed the shafts but now i cant tell the difference.
    The car goes in for a custom map on monday so any improvements will be shown on the pre map graph. It was 238 lb/ft and 227 last time with breathing mods and completley de-catted.

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    KevT.'s Avatar
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    how hard/easy is this mod to do as i have seen the kit for sale for around teh £80 mark!

    AOC top 15 car at PVS 2009 & 2010
    313.7bhp/343Ibft


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    It is very easy to do but you do really need the car up on a ramp to make it easy. I still havn`t done the how 2 for Enkidu yet lol

    Just a rough idea of whats got to be done: took 3 hours

    Remove the front part of the exhaust from the down pipe, empty the oil out of the sump, remove the bottom sump pan, remove the 2nd sump cover, let all the oil drip out, remove the balancer shaft bolts then remove the balancer shafts, remove the oil pickup, tap 4 holes left by the removal of the balancer shaft unit and screw in the plugs, then fit the new griddle plate where the balancer unit was, fit the oil pick up, fit the baffle and re fit the sump.
    Turn it over by hand before starting it up.

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    doesnt sound to hard then! i would like to see the how too when its done tho please mate

    AOC top 15 car at PVS 2009 & 2010
    313.7bhp/343Ibft


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    did you have the bottom end balanced? or did u remove them and leave the bottom end unbalanced?
    Astra Coupe Turbo

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    Coupe John's Avatar
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    Quote Originally Posted by stevenet15 View Post
    did you have the bottom end balanced? or did u remove them and leave the bottom end unbalanced?
    Good point, I would like to know this too

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    dannysport18's Avatar
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    I would leave them in

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    Coube's Avatar
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    From my experience If You had made any changes to the cluch or flywheel You should balance the crankshaft when removing balancing shafts.

    After doing this engine revs quicker and smoother
    Astra QP Flash by Neodesign with gt2871r getting around 350bhp

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