@boringdriver you still rocking this same setup; any updates?
LX 570 Harrop Supercharger Stage 1 and 2 Impressions
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@boringdriver you still rocking this same setup; any updates?
- Thread starter
- #182
Still rocking the same setup. No issues. Recently did valley plate reseal as a preventative measure, I didn’t have a leak.
Still brings me joy!
I bought the car with stage 1 that was installed 60,000 miles prior. stock injectors, stock tune. I don't know if it was the way the previous owner drove it but car didn't have that oomph.
after doing a bunch of deep dives into the setup and logging data, one thing was clear, the stock injectors can't keep up with fueling above 5000rpm. the injector duty cycle is well above 90%. recommended is 80% at WOT or you are going to be dangerously lean.
the stock tune surprisingly is not bad. this is what my tuner told me after he looked at the log:
either way i got those installed, retuned the car and i am under 80% at WOT. the car drives great. it pulls like a 4500lb car, not a 6500lb one...
now if you plan on going to a smaller pulley, these won't keep up so you def need to go to the DW 650cc injectors. i plan on staying where i am at to maintain a balance of power and reliability.
i am getting about 11MPG but I am not optimized for MPG either..
aftermarket bumpers
roof rack
R/T tires
injector duty cycle data with stock injectors vs. TRD.
after doing a bunch of deep dives into the setup and logging data, one thing was clear, the stock injectors can't keep up with fueling above 5000rpm. the injector duty cycle is well above 90%. recommended is 80% at WOT or you are going to be dangerously lean.
the stock tune surprisingly is not bad. this is what my tuner told me after he looked at the log:
based on all that, i upgraded the injectors to the TRD ones that are somewhere aroudn 480-535cc. i give a range because there's some debate over how many cc they are. literature says 480, real world testing says 535cc.
either way i got those installed, retuned the car and i am under 80% at WOT. the car drives great. it pulls like a 4500lb car, not a 6500lb one...
now if you plan on going to a smaller pulley, these won't keep up so you def need to go to the DW 650cc injectors. i plan on staying where i am at to maintain a balance of power and reliability.
i am getting about 11MPG but I am not optimized for MPG either..
aftermarket bumpers
roof rack
R/T tires
injector duty cycle data with stock injectors vs. TRD.
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What was your increase in feel / performance after a tune and upgrading the injectors?
Sounds like it was: Stage 1, with bigger injectors, custom tune?
I am planning on doing the same, with the injectors supplied by Harrop on their Stage 2. ie, Stage 2 with the Stage 1 pulley for more reliability long term.
Thanks!
Ya Stage 2 is just the DW 650cc injectors plus a smaller pulley.
So I never had the car without a SC so I can't speak to how it felt before but man this car moves off the line. I cannot tell I am driving a 6500lb car. I got the TRD injectors to make sure I don't run lean at WOT but I rarely go above 4000rpm.
I was going up the mountain in CO like it was nothing.
I am going to put it on a dyno one of these days. Just need to find one in town. Stay tuned.