Post #29
there's something VERY wrong with your 205 if that really is the case Dan, the J4RS lump has so much more grunt than the F4R, you are probably experiencing the MI16 effect, where they come on like a wallop at 4.5k, and what is probably why lots like the MI16, but the J4RS will always be quicker if its healthy. (in a car the same weight, like a 205 or a 309)
against a standard 306, yes a clio will be quicker, its a fair bit lighter and a very decent chassis like miles said, 200 kilos is nigh on 20% and the 172 produces around 167 bhp, the lower torque doesn't show itself as much.
but once you start looking into engine tuning the flexibility of the XU valvetrain comes into its own, the F4R is quite limiting and you hit a wall around 220-230 bhp, you have to spend big bucks likely with a Fench engine builder to get any more reliably.
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