Thread: New solas impeller and less rpms
04-11-2014, 06:06 AM #1
New solas impeller and less rpms
Hi I have a 2012 rxpx 260 and have a R&D aquavein intake grate ,Riva gen3 intercooler and have installed the Vtech 8375 aggr401 tune. When I had the oem impeller I was getting speeds of around 115 to 116 kilometres per hour and revs were at 8350. After I sucked up a rock I had a Solas SRZ-CD-15/20A impeller installed , Speed with new impeller got to 111 - 112 ks and revs only got to 7800. Supercharger was rebuilt two weeks ago. Do I need another impeller ?
04-11-2014, 07:05 AM #2
- Join Date
- Mar 2013
- Appleton, WI
I'd check if the new prop was pitched properly from the factory. Should be turning more RPM's.
04-11-2014, 07:59 AM #3
Also with water and air temps up so high still and very humid we are all down on rpm! I bet in 2 months you will be heaps higher rpm like but check pitch first
04-13-2014, 03:35 AM #4
500+ rpm drop is a lot..
I would check your hoses for boost leaks first..
I seriously doubt that the prop is out that much pitch to drop you 500 rpms.. but checking that is also a good idea..
04-13-2014, 03:55 AM #5
The mechanic at the dealership fitted it and told me it would have less rpms . I thought with the vtech 8375 tune that the revs would get there with this solas 15/20 pitch. And i dont get why i should check the pitch , when solas make these impellers. I havent got a clue on how to check it and fix. Probably best to go and buy oem impeller. Thanks for your help anyway guys.
04-13-2014, 06:27 AM #6
I would bet the supercharger slip is not set correctly, or you have a boost leak.
04-13-2014, 06:50 PM #7
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