need help

[siguy2k]

hello . im pretty new to the whole rotary motor. anyway my question is when i punch it it will go to about 7500 and then act like it cant rev any higher . what could this be. i have a 1990 na 5 speed. any other pointers or advice would be much appreciated. thanks

[drftk1d]

could be a number of problems

so be more specific

[mazdatekchubyninja]

does the engine light come on. try to pull codes on it. it seems that your oil metering pump is faulty and it going into fall safe mode. i had one done it to me and it wouldn't rev past 5000-6000

[mazdatech177]

but really though, even if it did go past 7500 rpm on accel.... would it make a difference?

[siguy2k]

no the engine light doesnt come on

[tubjub]

um, isin't 7500 where the revv limiter kicks in ... ? lol

86 na rx7 revved to approx 7500 and shut down
87 turbo2 does the exact same thing give or take a few hundred rpm...

i wouldn't be expecting a stock 13b or 13bt to be revving much higher than that. i believe the 13bREW's revved to around 8 (someone correct me if i'm wrong) when the revv limiter kicked in.. and the new Renesis motors found in the RX8 is somewhere in the neighborhood of 9000rpm or so.

[siguy2k]

well since it redlines at 8 grand then youd think you can take it there right?

[fcdriver]

I've made it well past 8k not paying attention to the tack when I've been in a race so I really don't think there's a limiter at 7,500. Btw this was on a s4 n/a.

[tubjub]

just because the tachometer needle says 8,000 RPM or whatever, doesn't mean it will revv that high. FDTT what are the stock revv limiters on these motors ?!?!

[FDTT]

To be honest i dont know. I dont think they have active rev limitations other than your right foot.
I have heared alot of talk about one on na's, but then i have personaly pulled out over 8500rpm out of them(by accident)

Also be VERY carful when pulling past the factory redline as the escentric shaft will flex and cause the rotors to contact the side housings. This equals a blow motor and more money for me :P

[drftk1d]

Originally Posted by tubjub

just because the tachometer needle says 8,000 RPM or whatever, doesn't mean it will revv that high. FDTT what are the stock revv limiters on these motors ?!?!

S5's redline at 8k, and they can rev past that

ive taken my S4 na to 8k (7k redline), rev limit on a S4 na is 8k

[badassfocus1101]

i took my 13btII up to 7500 and i dunna if it could go farther...i juss heard the warnin buzzer come on n scerd me...lolbut im sure when i blew it up in my driveway doin donuts...it prolly hit above 7500 tho..