Thread: 50# injector ( Riva & BOSCH )
01-14-2010, 06:52 PM #1
50# injector ( Riva & BOSCH )
What is the different between
Riva (Grey) and the BOSCH (Orange) , injector
any one try the new BOSCH ( working with RIVA ECU )
01-15-2010, 11:15 AM #2
- Join Date
- Jul 2007
Just tried a set of the orange ones and not sure who makes them since thewre is no name on them just a part number.Not sure if its just mine but could not use them.Ran way too rich and when i looked inside they looked bigger than my 60s.I am returning them and paying the extra for the riva 50s.
01-15-2010, 05:56 PM #3
I couple of us had the same issue and it turned out that the injectors we recieved were actually 52s and flowed at 550cc and should have flowed around 525cc. Not a huge difference but makes a big difference at idle especialy when comparing to the riva 50s wich react very slow at 58lbs of pressure. The riva injectors are ok if you are running stock fuel pressure but if you plan on running higher than stock pressure they will lock . At idle the riva injectors actually get richer as you turn the pressure down and get leaner when you turn it up. They wont even spray any fuel at idle if turned above 65lbs .
01-15-2010, 06:13 PM #4
01-15-2010, 09:14 PM #5
I should also add that you should expect the bosch injectors to idle a little richer than the bosch due to the slow reaction on the riva's under pressure. The riva ecu is mapped for to compensate for that.
01-15-2010, 09:19 PM #6
i have a set of riva 50s bought then less than a month ago when i got my riva ecu...got a whopping 7 hours on them ...when i came into a rude 3.. and now i need 60s.. good deal for someone needing them ...
01-18-2010, 07:06 PM #7
01-18-2010, 08:47 PM #8
01-18-2010, 08:55 PM #9
IMO, the bosch are a better injector. Especially if you intend to run high pressure. They are good to 90lbs. The rivas cant take the high pressure, especialy at idle. The riva ecu is mapped for the riva injectors so they tend to idle the best but thats about it. I would go for the bosch but make sure they are 50s and not 52s.
01-18-2010, 09:11 PM #10
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