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andpgudOffline
Post subject: Supercharge or turbo the m70  PostPosted: Mar 07, 2016 - 09:30 AM
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Hi guys.
What route should I go. Supercharge or turbo the m70
I want around 700 hp and want it to be problem free
 
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thewirewizzOffline
Post subject:   PostPosted: Mar 07, 2016 - 01:18 PM
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what trans axle will you use
Cool steve
 
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beyondcustomOffline
Post subject:   PostPosted: Mar 07, 2016 - 01:40 PM
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Location: Western Australia Perth
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We have turbo charged 2 m70 motors, they respond well to boost but over 10 psi they lift heads, under 400bhp holds but, over you need to run forge Pistons which requires steel sleeving the bores and putting metal inserts ( not heli coils) for head studs, since no one currently offers a multi layer steel head gasket I am currently organising to manufacture a quantity as from my experience the normal gaskets won't hold and either blow out towards the water gallery or allow combustion between bores.. O ringing the block or head may help but nothing beats multi layer steel gasket.
Additionally the heads don't flow well past 500bhp, good performance heads are available but won't pass emmissions if it required where you live.
I am part way through building quad cam heads for one of our M70 motors to pass emmissions here in Western Australia which will be boosted, hopefully a good increase in power.

Leon
 
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AdrianBurtonOffline
Post subject:   PostPosted: Mar 07, 2016 - 04:02 PM
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Man Leon, you are holding out details on the heads

I have spoken with a few of the guys in Sweden that have done crazy turbo'd M70's none mentioned doing anything special to the blocks. Do you think going with aftermarket studs would help with clamping???

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andpgudOffline
Post subject:   PostPosted: Mar 07, 2016 - 08:46 PM
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Could you give us more info on the 48v heads?
I am leaning towards the supercharger actually as it would be going into a BMW 850 with a manual transmission
 
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beyondcustomOffline
Post subject:   PostPosted: Mar 09, 2016 - 01:28 AM
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I hope to have the quad cam heads sorted mid year, also setting up for the casting to produce quantity of the heads and intakes.
I think in regards to the euro guys I've been told they address the head bolts before turboing maybe that's why. Also getting the rings to work with the factory bores would be possibly more readily optioned and available over there. But I have noticed pushing the factory rings and Pistons do mark the bores on the outer sides, possibly due to what there made of not being as tuff as a steel bore...

Leon
 
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AdrianBurtonOffline
Post subject:   PostPosted: Mar 09, 2016 - 05:22 AM
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do you have a projected price?

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beyondcustomOffline
Post subject:   PostPosted: Mar 09, 2016 - 06:32 AM
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Honestly have no idea at the moment, it will all depend on the casting cost and quantity I suppose. And I would want to have dyno tuned an assembled motor to make sure it's all good before I would look at selling sets...
 
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andpgudOffline
Post subject:   PostPosted: Mar 20, 2016 - 02:01 AM
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I think I will go with a supercharger
 
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