Hello all, just wondering how hard it would be to swap the engine in my Indy (99 R1 on carbs) to a later year model with injection etc?

Also, what gains would I see, as my engine already is dynojetted, ported head with cams etc....

Just thinking at the moment......

Lee

See, if you were a 5'8 skinny midget like me Lee you wouldn't have to worry

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Originally posted by hobzy
See, if you were a 5'8 skinny midget like me Lee you wouldn't have to worry

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Have a look at holeshot racing's sit - they can do tuning packages for the R1.

I suppose it depends how much power you want and the cost of a new engine - I think the power of a later R1 can be achieved from the earlier engine for the same cost as a replacement engine (if that makes sense...?)

you may get a bit more horse power but whether or not you will notice a difference is debatable. Stock figures are 150bhp, 70.8lbft against 5pw with 164bhp and 73.8lbft from total kit car mag. if i was in a similar position id consider a much bigger upgrade so it feels worth it zx12, gsxr1000, cbr1000.

[Edited on 12/7/09 by bassett]

Your engine is now 10 years old, which is quite a lot for a bike engine. I'd worry what effect major tuning work would have on life expectancy. You could probably sell the 99 engine for most of the cost of a nearly new one, so for hundreds of pounds you get another 30 horses or 20% more and it will be in a new engine and will be stock power, so will probably last longer.