Thread: ET Low Boost vs. ET 15.5
07-02-2012, 10:02 PM #1
ET Low Boost vs. ET 15.5
I am looking to see some real world results from somebody that has run both of them including what kind of boost did you see at what rpm and which one you prefer. Also, for the 15.5 what sort of fuel/ECU setup were you running? Thanks!
07-02-2012, 10:20 PM #2
07-03-2012, 04:38 AM #3
for realiability stick with the low boost wheel
i get about 14 psi with mine at 8,600 revs, stock injectors ,84.5 mph best
with the 15.5 wheel or high boost i was geting 15.8 @ 8650 revs , 86.7 mph best
added 1,000cc injectors with the high boost
i have the low boost setup in my ski now
07-03-2012, 08:47 AM #4
07-03-2012, 08:58 AM #5
07-03-2012, 09:25 AM #6
With my conversion, I was running the ET15.5 with the V-Tech STG. III tune. It worked seamless with just a FPR and no power shot and stock injectors. I couldn't have been more pleased with the results. I don't have any boost numbers in comparison to the lower boost wheel, but since you asked about fueling etc with the 15.5 I figured I would share my setup. The setup ran extremely well and air fuel was spot on across the board.
07-03-2012, 10:26 AM #7
07-03-2012, 10:45 AM #8
07-03-2012, 11:49 AM #9
With the high boost wheel are you running pump gas "91" friendly?
My low boost wheel will be in my hands this week.
Going to run it with the r3 flash and oem injectors.
Wanting to tune the pump for 8500 to 8600 even though the flash limiter is 8850, with the riva internals i could run it on the limiter.
My goal is to make it reliable and fast. As long as it can maintain 83 to 84 mph at 8500 rpms i will be very satisfied.
Before i was running a c3/r2 and was having excellent performance with the oem pump. Played with a 160 sleeve and impellor and no matter how low the trailing edge was pitched the rpms would not get above 8100.
Since the et lb is gonna perform better than the c3 a 160mm pump might work.. i guess i will find out.
07-03-2012, 11:52 AM #10
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