12-01-2014, 06:28 AM #1
Anyone Running a New R&D "SV" Supercharger Wheel?
It seems as though the ET19 is the hot ticket for the SVHO chargers.
But was wondering if anyone is running one of the the R&D "SV" SC wheels? I am particularly interested in the SV-C20x, and possibly the SV-C24x (If it's not too big). Looking for maybe just a bit more boost than the ET19, but without going over the top for reliability
Any real world user input would really be appreciated..
Last edited by WP3223; 12-01-2014 at 08:19 AM.
12-01-2014, 08:27 AM #2
It looks like the optimal wheel for reliability would be the 17 or 20. 20 Seems right in line with the ET19 while the 17 would still be a few lb upgrade vs stock (Not sure if rated for stock cams or not though. I am seeing 16psi on stock wheel now at 8700 with the sho exhaust cam.) The 24 requires new fuel pump, custom program, cams, injectors, and race fuel according to the description.
"The SV-C24X Racing Monster wheel requires a R&D High Performance Racing Intercooler Kit, R&D 1000cc Fuel Injectors, R&D 340 Fuel Pump Kit, R&D Rising Rate Fuel Pressure Regulator Kit, and R&D SV-C24X ECU Program upgrade for proper fuel and ignition tuning. Also needed is the R&D R2 or R3 Camshaft Kit. R&D also strongly suggests upgrading to R&D/CP Forged High RPM Racing Rods and High Performance Pistons. The new R&D SV-C24X is for all out Racing use and requires 110 octane racing fuel. Boost rated to 20+ @ 8500-8700 rpm and 24 pounds @ 9250 rpm. The R&D SV-C24X series compressor wheel offer the highest levels of airflow and horsepower gains available for the 1.8 Yamaha engine."
Pt. # 612-24017 SV-C17X Monster Wheel / Boost Rating 17lbs.@8600-8700 / 19lbs.@9200
Pt. # 612-24020 SV-C20X Monster Wheel / Boost Rating 20lbs.@8600-8700 / 22lbs.@9200
Pt. # 612-24024 SV-C24X Monster Wheel / Boost Rating 24lbs.@8500-8700 / 24lbs.@9250
Just for what its worth with the R&D adjustable gears and SHO exhaust cam my stock svho wheel will be putting out same boost as the C17X will. Or damn close to it.
12-01-2014, 08:47 AM #3
That was kind my reasoning in even dreaming about the C24x. If it is actually pushing closer to 22#'s of SVHO cfm @ 9250 - that would be the shizzle.
Depending on what info comes to this thread - I might end up going with the ET19 & keep r safe.
I just picked up a SVHO charger & am trying to stay ahead of all the bad boy SVHO's now coming together
Last edited by WP3223; 12-02-2014 at 04:51 AM.
12-01-2014, 09:11 AM #4
Appears the C20X is the same on paper as the ET19. Here is quote from another members test regarding the ET19:
"I tested it right behind Dean and found the same results. Makes 19 psi around 8500 to 8600, then it starts making over 20 psi at 8900. I saw 21 at over 9000 rpms on a good day."
12-01-2014, 12:25 PM #5
The sv-c20x is probably going to be about the same wheel as the ET 19. The sv-c24x and the sv-c28x wheel are the same. There is only one wheel there. Not two like R&D list. So if you order a sv-c28x it will make 2 more pounds of boost over a ET 19 wheel. It's a 92mm wheel with a larger back plate. And it's made by ET for R&D per there specs
12-01-2014, 09:49 PM #6
12-01-2014, 09:59 PM #7
12-01-2014, 10:25 PM #8
That's a monster of a wheel WP....sure you are wanting to go that high with the requirements listed above? And reliable? You looking to build a race ski or just a fast rec ski? If I am to put a new wheel in I will be staying with ET19 or 20 R&D to keep things trusty and safe....well as trusty as possible with 18+psi lol
12-01-2014, 10:50 PM #9
Last edited by WP3223; 12-02-2014 at 10:07 PM.
12-02-2014, 03:05 AM #10
reliable and horsepower... go in different direction...
with that boost... I think you need race fuel... or it's better to use race fuel...
I think it's too much for a recreational ski.
your clutch think the same...
also tuning correctly afr could be a pita....
and you will pass your time riding your ski with one eye on water and the other on afr gauge....
only my opinion.
post results if you decide to upgrede to this big wheel
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