OK where are they engine swap smartys? replacing the 2003 gtx donk.

[Steven Mace]

Need some smart 4 tec tec support, replacing the 2003 gtx donk.

OK guys.. i thought i had it all under control but some bloke got in my ear today saying my new engine is going to go bang!

Let me set the scene, I have a 2003 sc gtx. engine is dead. spun a main bearing. so everything is stuffed.

Found a good 2007 block and thought i could machine my crank.. but my cranks bent too. so need a crank. well ended up having a mate that has lots of parts and a dona 2011 255 4tec.

So we ended up with the following
2007 block and case
2003 head with 2003 cam, New valves and guides, riva retainers and the 255 springs.
2011 rocker shaft
2011 forged pistons and matching con rods.
2011 crank shaft
2011 PTO cover to match the crank. (Kept the mag and other goodies from the 2011 bolted on)
2003 oil seperator (front pump with 2003 solinoid and case presure sensor)
2003 inlet and exhaust manifold and injectors
2003 harness
2003 185hp ecu
2007 215hp fuel presure reg
2003 185hp charger (but installed the 16 tooth gear to make it 215hp)
will have a external cooler mounted on.

So anyways the questions i have are as follows.

The 2011 PTO has the newer style timing sensor, can i just splice the 2 wires into a new plug and connect it to the 2003 harness?

I know i should be running the 215hp ecu but can i run the 185 ecu with the lower rpm just to run it in?

Will the 185hp or 215hp ecu run with this 2011 crank and pto? everything plugs in except the crank sensor i will splice.

what else should i be expecting? more information the better guys.
Thanks
Steve

 

[ski-d00]

I've done quite a few swaps, do a search where I explain differences. I'm not sure if you can splice the crank pos sensor, originally I thought it was just a switch but not positive. I've always maintained ECU with correct crank year/pto housing and have had no problems. You can run 185 ECU instead of 215, just will have lower rpms and slightly different curves. Yes, I think it will with run with older ecu as long as the timing is correct meaning correct crank, flywheel, mag cup, cps location.

If you are using the older TOPS system(not recommended) and want it to work properly, there is a vent hole above the cb shaft that shouldn't be there.

 

[Steven Mace]

straight out of the book.. check out the two pictures.. for a 2007 seadoo tech update book

I've done quite a few swaps, do a search where I explain differences. I'm not sure if you can splice the crank pos sensor, originally I thought it was just a switch but not positive. I've always maintained ECU with correct crank year/pto housing and have had no problems. You can run 185 ECU instead of 215, just will have lower rpms and slightly different curves. Yes, I think it will with run with older ecu as long as the timing is correct meaning correct crank, flywheel, mag cup, cps location.

If you are using the older TOPS system(not recommended) and want it to work properly, there is a vent hole above the cb shaft that shouldn't be there.