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Location:
Newcastle
Registered:
May 2002
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 1JZ Blues....part 2
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Sat, 15 March 2003 11:28
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G'day Guys!.
I have a 1j in my boat, I have slowly been gettin there with it, sorting it all out, I have had a miss/ slighty breaking down in it at around 5000-6000rpm, at first I wasn't running an alternator, and we thought puttin one on would help, but it still has this slight miss, I needed the alternator anyway, as the volts were too low for the engine to operate at high revs etc etc, I have put a surge tank ( 1litre) and a primer pump, also a bosch motorsport fuel pump, so all seems well on the fuel side of things, new plugs.
When it get to theses rpm, the fuel pressure is good ( over 40 psi, and doesn't drop when the miss happens), boost is around 11psi, temp around 160-190 F ( old speak)
around 6000 = 100mph in this little boat,and even at theses rpm, is preforming better than the 350 chev did, but I would like more, well at least rev to 7000, 7200, Grant knows the set up , He has been a great help with this project, as has this forum, Maybe I'm over looking something simple?, dodgy igniter,coil?? maybe it does rev to 4500-5000 cleanly, no missing or breaking down, when it's on the trailer it will rev to 6000-6500 no problem, with no load, the gearing is ok, it pulls to 5000-5500 easy, suggestions PLEASE!!!
Thanks in advance
Dave
[Updated on: Sat, 15 March 2003 11:37]
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