1984 rx7 5.3L turbo s475/th400/8.8 /E85 (sloppy style)
05-22-2016, 11:16 AM
#541
05-22-2016, 06:29 PM
#543
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Not a good night forsure.
.1st run almost hit the wall. Crossed to the right lane, luckily i was able to drive it away from the wall. But as soon as 2nd gear kicked and it went full boost it kicked straight to the right.
2nd run.... launched and it was stuck in 2nd gear.
Peddled it a bunch of times and didnt hit it till mid track, still trapped 124mph.
It was bad all around. Not a good night at all.
Need suspension. Bigger tire. And the trans needs to be looked at.
.1st run almost hit the wall. Crossed to the right lane, luckily i was able to drive it away from the wall. But as soon as 2nd gear kicked and it went full boost it kicked straight to the right.
2nd run.... launched and it was stuck in 2nd gear.
Peddled it a bunch of times and didnt hit it till mid track, still trapped 124mph.
It was bad all around. Not a good night at all.
Need suspension. Bigger tire. And the trans needs to be looked at.
05-23-2016, 07:35 AM
#549
That’s a stinker! Did you hit something on the track like water/oil maybe? Rear end not square? What do you think caused the car to not go straight? Seems odd it went straight on the street in the past?
Are you using the one PWM output on the micro? I gotta say progressive boost/timing made the biggest overall difference in making a big turbo car drivable. 2-3 second ramp does wonders. You could probably do it all with timing if you don’t want to mess with the boost control.
Are you using the one PWM output on the micro? I gotta say progressive boost/timing made the biggest overall difference in making a big turbo car drivable. 2-3 second ramp does wonders. You could probably do it all with timing if you don’t want to mess with the boost control.
05-26-2016, 12:28 PM
#551
Are you using the one PWM output on the micro? I gotta say progressive boost/timing made the biggest overall difference in making a big turbo car drivable. 2-3 second ramp does wonders. You could probably do it all with timing if you don’t want to mess with the boost control.
OP - When you said turned, I didnt know you meant SIDEWAYS till I saw the picture...nice recovery! Glad your safe!
05-26-2016, 12:31 PM
#552
TECH Fanatic
As far as I know, the Microsquirt firmware does not support any type of progressive boost strategies. You can use the FIDLE output to PWM a boost solenoid in open or closed loop. I supposed you could have an RPM based boost ramp.
05-26-2016, 01:07 PM
#554
TECH Fanatic
I'd have to look at the options again. I know all of that can be done on an MS3x system, not sure what the micro options are.
