Triumphrat

luiz · 02-26-2008

I do like 97-01 look but want to increase engine power to 02+ standards (149 shp);
As far as I know engine changes are restricted to compression ratio (cylinder heads+covers) + valves, and, injection re-mapping;

Did anyone ever tried to install later models headers and valves in earlier 01- engines?
Is it possible to install complete 02+ engines to 01- frames, keeping radiators etc the same?

Very interesting project: 01- looks with later models performance with, of course, ealier models handling, which is better, I believe.

DEcosse · 02-26-2008

Motor swap not as trivial as you might imagine - it's not a difficult job, but more parts than you may think.

I have '02 Daytona motor in my '98 Speed Triple - pretty much same considerations as in your case when swapping to later motor - in addition to list below I also needed to replace the MC1000 ECM and the fender/battery box from later 99-01 model (you won't need these)

Lot's of things to change you may not have considered:
Headers - much bigger bore & with lamda sensor & exhaust (you can't fit 97-01 can on an 02+ header so that has to be replaced also) ;
airbox (airbox is not a straight fit under the late tank so need some mod there);
complete main wiring harness;
Regulator/rectifier & need to custom mount to frame (stator is in the motor, not one piece auto style alternator like earlier motor);
brake rearset (the early will interfere with the exhaust header);
need digital instruments to go with later harness;
use a Sprint Electronic Speed Sender (form & fit in the 97-01 wheel);
oil cooler (different connections) - or would need to have special hoses custom manufactured with the appropriate fittings on each end.;
radiator - the thermostat & sender are in the '02+ motor, so you need to lose the assembly under the tank cowel & create a filler connection - see my gallery for pics of how I adapted my original radiator (although I subsequently replaced with a 1050 S3 radiator).
You also have to 'cheat' the electronics in the ECM for the tank level sender - will throw an MIL otherwise; or else you need to graft a late tank sender into early tank (they are not interchangable -completely different fitment)

Think that's about it - as aforementioned it's a lot more than you may have anticipated!

See some pics in my gallery

bradtx · 02-27-2008

Luiz, Unless the present engine is shot and needs major work/replacement I wouldn't worry about the HP difference. The main difference is at WOT above ~8K RPM otherwise they're very much the same.

Brad

luiz · 02-27-2008

Engine is Ok, the bike has only 13200Km. Unfavourable magazines reports on early Daytonas problably influenced me. In fact I never noticed 02+ Daytonas being faster, either on the road or during track days. The same for R1s, ZX9s or GSXs, except for final speeds;
Taking into account what DEcosse said, keeping the engine instalation with original radiator, oil cooler and air box is the best option, replacing cylinder headers, valves and cover if they fit to the earlier engine. I found 4 different P/Ns for the headers in the Bike Bandit cathalog (02+ Daytonas). Any hint which one gives the 12 to 1 compression ratio?
Injection mapping will be an issue, of course.
May be a good idea is to work in an e-bay purchased partted bike engine...An interesting project anyway.