Retune after turbo change
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Staging Lane
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Join Date: Mar 2009
Location: Perth Australia
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Retune after turbo change
Hi, I have been running a gt4294 on my 408 which is too small for the engine and am going to upgrade the turbo soon, Everything else being exactly the same apart from the turbo will I need to retune this thing? The gt42 choked the hell of my engine on the dyno. GT4780 is what I am looking at at the moment.
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Staging Lane
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Yeah ok thought I would but was hoping to get away with running low boost until I had the facilities to get tuned again. Might hold off on the turbo swap. Will running high pre turbine back pressure cause any real dramas for a street strip car other than choke the power