Earlier referred MPS with 380 or 'safe' 370hp on 102ron, they run 1,6 bar flat basically on stock valve springs. May very well be on or over the limit... Also nothing in the exhaust, 'cool' but very dirty and highly illegal in Germany....
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If valvesprings, personally I like the pumaspeed turbo, not much bigger but with WRC core in combination with a metal catalyser would be nice balance of power, response and relative reliability.
PS: @Duncan when opening up the head, maybe put in better camshafts in while at it? Kelord have a set that is similar to stock but that hasn't got the pressed on lobes than can shift as they did on the Fensport sprint car...
Have seen the Kelford cams, was considering it, but for now I want to be able to revert to the stock ECU if needed. Fensport advised the Kelford cams wouldn’t work. Also at the power level the exhaust turbine/back pressure is the limiting factor.
If I go big turbo later down the line I’ll consider cams.
I’ve spoken to pumaspeed about their hybrid, waiting on more results from them first, and I’m in no rush. If I can get 350bhp is from the stock setup I’d probably put the cost of a turbo in to suspension first.
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