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    McLaren M20#73

    Thanks guys.. Nearly completed the Intake pipe. Just stepped it from 3 to 4”. Mounted the Race Valve and the Intake Air Temp sensor and bung. I still find it challenging welding thin contaminated aluminium pipe, but it came out ok. Might paint it stipple black. I priced up 4 an fittings for...
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    McLaren M20#73

    Completed the front engine plate milling. Procharger mount all done and tensioner installed. Still waiting on the shorter belt. Got all the oil line parts AN-12 size. Moroso remote filter and an Earls 25 row oil cooler. Dug out an old Earls oil cooler that will work fine as the transaxle...
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    McLaren M20#73

    Hi Terry, still may block mount the coils but it's a bit tight to get access past/under hot pipes etc. Easier access from the underside of car but would require the engine bay floor cover to be removed. I don’t know there would be any notable reduction in spark/engine performance running 400mm...
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    McLaren M20#73

    Rocker mounted the IGN-1A coils on an ICT plate, running the spark plug leads between the header pipes in heat shields...... I just dont like the look or the enviable heat issues so will mount the coils on the rear bulkhead and run longer leads low in the chassis. Nearing completion on the...
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    McLaren M20#73

    Pulled the sump to confirm. Yes it has 3 screened pickups behind the louvered windage plate.
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    McLaren M20#73

    Might need to pull the sump off. The Aviaid site says they’re louvered and screened already.
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    McLaren M20#73

    Was looking at some moroso scavenge screens, its on the list. But in the mean time I’ve plumbed the Scavenge lines up. Installed a sleeve over the Oil pump shaft to arrest any pulley walk on the shaft. The pulley has 4 grub screws. 2 on the woodruft key and 2 directly on the shaft, so it looks...
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    McLaren M20#73

    Thanks Joyce, so am I :) Just picked up the front Oil gear mandrel from the engineers. Had to get 3 extra holes drilled at the correct diameter and bevel. Fits nice. Also got a Gates HTD 760-8M belt (Had to get a 2 tooth larger belt to fit the space better). Can now plumb the scavenger pipes...
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    McLaren M20#73

    Thanks for the heads up. There is a bolt and washer that goes on the oil pump shaft end. I can put a sleeve over the shaft to fill the gap to the pulley or cut the shaft which would be the neatest solution, but would have to tap a new hole into the hardened shaft which could be problematic. As...
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    McLaren M20#73

    Progress on the front engine plate. Recessed the cap screw engine mounting bolts. Alternator hole milled, bracket completed and alternator mounted.. Also milled the Oil pump hole and pump now in place. Have to collect the oil pump harmonic balancer mandrel from the engineer. The Stainless Bros...
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    McLaren M20#73

    Remade the right side header, finally done. Have some Stainless bros 12” oval mufflers ordered, so can knock up some tail pipes when they arrive. The WhiteHorse Industries inner rims turned up. Did a test fit to make sure they had enough caliper and suspension clearance, all looks good so they...
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    M20 Dreaming

    Car looked good out there. A little more fiddling and she'll be ripping. Leon, waiting to go out (Packing the undies :) and return road.
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    McLaren M20#73

    Front sway bar finished. Completed the left header, had to offset the merge collector a little to clear the starter motor and I’ve shortened the the pipe length to 860mm. Welded in the O2 bungs and Vband clamps so mufflers can be added for the quiet tracks. Will cut up the right side now and...
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    McLaren M20#73

    Leon, I got plenty of room for mufflers...you could do something similar to Andrew's M1, with a down facing muffler from your top V-Band clamp. Andrew's reply from his M1 build 2014. "Leon, it's a Hilborn 2 7/16 unit with EFI injectors hidden in the centre. basically one of their traditional...
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    McLaren M20#73

    Hi Dave, thanks, a bit of crystal ball gazing, if there is a issue with a high speed boot failure, a heat shield can be fitted. They do have a outer metal cover which should help, I hope. Things are pretty tight all around the headers/exhaust and suspension components. Trying to keep all the...
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    McLaren M20#73

    Hi Udo, Have the LSD. Oil - will be running Valvoline SynGear 75W-140 as specified by Albins. Andrew, the pipes are long, do you have some pics of your muffler setup and internal design, will have to make a custom muffler for the quiet tracks. It’s going to be rowdy. Kev, thanks . So the...
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    McLaren M20#73

    Got a week off so hopefully will be able to make some progress on the headers. Made a form to mark 90 degree cut off lines on the 180 degree mandrel pipe bends. Simple and in expensive. Turned up a bung for the 2” pipes to back purge while welding to prevent crystallisation inside the pipe. I...
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    M20 Dreaming

    One day the NZ McLaren replica clan will assemble at a race track nearby and go for a fang.
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    Scratch build MK IV

    If I build another car it would be a mk4. Following with interest. Andrew.
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    McLaren M20#73

    Mrx.co.nz Call-Email Nick for a quote.... nothings cheap in motorsport.
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