View Full Version : Whats the stock boost level?
Rx-7fetish
02-15-2010, 08:40 AM
^^^^^ What is it, ive been searching for a night and a day now, i keep getting irrelevant crap from the search engine. Oh, its an s4
RotaryDiagnostics
02-15-2010, 01:54 PM
For a completely stock TII, I believe it is less than 8.6 psi. Fuel cut to rotor 2 occurs at that pressure. However, actual boost levels depend on several factors including ambient air density, the health of the intake piping, among others.
N.RotaryTech
02-15-2010, 02:03 PM
A buddy of mine told me its around 7-9 psi.
But that's just talk an no proof.
Dzire
02-15-2010, 02:33 PM
S4 model
- 2000-5000 rpm = 320 mm mercury (0.42 bar/6.2 psi)
- rpm >5000 rpm = 280 mm mercury (0.36 bar/5.4 psi)
Fuel cut = Boost > 400 mm
Max turbine speed = 110,000 rpm
Rx-7fetish
02-15-2010, 04:09 PM
Right on guys, thanks. That's the quickest, exactly what I needed, response I have ever recieved.:icon_tup:
Ender
02-15-2010, 11:57 PM
S4 model
- 2000-5000 rpm = 320 mm mercury (0.42 bar/6.2 psi)
- rpm >5000 rpm = 280 mm mercury (0.36 bar/5.4 psi)
Fuel cut = Boost > 400 mm
Max turbine speed = 110,000 rpm
Is this in the FSM or some other documentation? I'm confident in its correctness because I've read it all over the place, but I don't think I've ever seen official specs.
Dzire
02-16-2010, 12:18 AM
all of this information is in a book that was written by Jack k Yamaguchi Mazda let this guy have access to the team that design the second generation RX 7
Ender
02-16-2010, 01:56 AM
all of this information is in a book that was written by Jack k Yamaguchi Mazda let this guy have access to the team that design the second generation RX 7
I might just have to find that book...
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