Making the type four rev higher Options

[Trekkor]

I have a VW Bug race car with a type four motor.

I would like it to safely rev up to 6500-7000 rpms.

What is needed to accomplish this?

thanks

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KT

[DBCooper]

Well, the T4 IS a truck motor, so it makes sense they'd put it in the vans.

There are only two significant advantages the T1 design has over the T4 for performance, first being the exhaust port design, but the big second is the huge availability of not expensive performance parts. For example you can buy all new aftermarket aluminum cases that are beefed up in all the areas where the OEM case proved to be weak, forged cranks in every dimension, h-beam rods, brand new CNC milled heads in any port shape you want, etc, etc. That means these days you can build an ENTIRELY NEW T1 engine with all performance parts.

I think you could probably build one to last, but that's not actually what I'm suggesting. I really just want to be clear about the actual needs, to make sure that the suggestions I make, that ALL of us make, are actually in line with the intentions and needs. If all you need to do is average 40 dependable miles an hour for 24 hours, for example, we may be overthinking and overspending all this. And the same's true to bump that up to just 60 mph, T4 or T1. So I'm just saying understand the really basic questions about need first, then the fun stuff (like spending Trek's money for him) later.