HI
i just bought a 750 plus,[i hope] what is the difference between a 750f and 750 plus
serial#7501k098, this a air start,ecu set at 1300mb
thanks BUD STALLARD

The 750+ is 21-22 power The 750 F airstart or electric 17-18 power rating

I think the 750plus had the ecu set to 1400+mb to achive the 21lb thrust. If yours is
set at 1300mb, it is roughly 18lbs thrust.

run the serial # by carlos at RTi

I recall all the "F" models had an serial # 750F***
the plus models had 750K or 7501k

also try to raise the limit in the ECU
I dont have RAM air start manual here any more just remote (autostart)

Just curious, how much did you give for it?

The 750 Plus was basically a derated 1000. It is different than a 750F. If you have an older, pressure controlled 750 Plus and set it to the same CP as a 750F, thay will not be making the same thrust. They are totally different engines.

Woketman

This believe it or not . I have a 750 F same compressor and turbine wheel airstart. Installed a electric starter and convert the air start to an autostart with 750 ECU. On a test bench I modified the ecu from 120 to 129 RPM and that engine runs up to 130 before i have a compressor stall. Not sure what the power output is but i now run is as a 1000. with no problem. After one year still runs.

THANKS,for all the help from you guys,guess it want matter, anyway now,just been told that our local feild has been barred from flying jets,due to affairs of gov.an polltics.SO i will be leaving this side of hobby.Will have 20 years of r/c items for sale posted next week.
Best regards, BUD STALLARD

Very sorry to hear that.

The 750+'s were usually 1000's that didn't perform for one reason or another so they were derated to 22lbs of thrust. / 1600 CP.