EFR Help (None miata related)
#1
EFR Help (None miata related)
Hey guys, a friend of mine installed an EFR turbo kit for his RSX, and it does some very, very strange things. Since you guys are all turbo wizards, I'd figured I'd ask here instead of the stupid honda forums.
Basically what the car does, is it'll spike in boost, then it'll drop off through the RPM band, and closer to redline it spools back up. And sometimes it'll spike in boost so hard it hits boost cut.
We're targeting 15 psi, and we have boost cut set at 17.
So in lower gears:
3000 rpms @ 10 psi
4000 rpms @ 15 psi
5000 RPMS @ 12 psi
6000 RPMS @ 10
7000 RPMS @ 12 PSI
8000 RPMS @ 13
But if we're say in 4th, if we go WOT from 3-3500, it'll spool and hit boost cut at like 4100.
Right now, we running ONLY the internal gate. We did have the BCSV hooked up to the KPRO, but have since removed it to help figure out this problem.
I figured we could turn the preload down on the arm, and just use boost by gear, but I feel there's actually some issues with it.
I did a boost leak test, and it passed. I did the leak test to 20 psi on my air compressor, and no leaks.
Basically what the car does, is it'll spike in boost, then it'll drop off through the RPM band, and closer to redline it spools back up. And sometimes it'll spike in boost so hard it hits boost cut.
We're targeting 15 psi, and we have boost cut set at 17.
So in lower gears:
3000 rpms @ 10 psi
4000 rpms @ 15 psi
5000 RPMS @ 12 psi
6000 RPMS @ 10
7000 RPMS @ 12 PSI
8000 RPMS @ 13
But if we're say in 4th, if we go WOT from 3-3500, it'll spool and hit boost cut at like 4100.
Right now, we running ONLY the internal gate. We did have the BCSV hooked up to the KPRO, but have since removed it to help figure out this problem.
I figured we could turn the preload down on the arm, and just use boost by gear, but I feel there's actually some issues with it.
I did a boost leak test, and it passed. I did the leak test to 20 psi on my air compressor, and no leaks.
#8
Sounds like its binding. Mine did this for a while, either eventually it bent the shaft or the shaft being bent caused the binding. Which is part of the reason I ended up buying the turbosmart actuator. You actually have a real small margin for error with the actuator, you're better off having the center housing a little bit off of perfect angle to get the actuator to not bind. I bet if you start a pull at 5k it'll show the same spike and drop and recover in a smaller span. The boost creep at the top end is probably the waste gate not being open enough due to the binding.
Thread
Thread Starter
Forum
Replies
Last Post
zrookie
Miata parts for sale/trade
25
04-25-2016 02:55 PM
yxy123456
Miata parts for sale/trade
10
04-19-2016 11:14 AM
AdrianD2
Miata parts for sale/trade
4
04-03-2016 09:27 PM
2manyhobyz
Insert BS here
5
03-21-2016 10:46 PM