xblazinlv

I sent off a set of 1300cc injectors I purchased off the forum, they were done by RC Engineering.

I sent them off to witchhunter.com to have them cleaned and flow tested, and it looks as though at 100% duty cycle one flows 1520ccs and the other flows 1750ccs


That's a huge margin of difference / error from the 1300cc they are supposed to flow.

Anywho, that was at 100% duty cycle. The guy from witchhunter told me that at 50-65% duty cycle they were a lot closer in flow, with only a 5% differenece (what I've been told is 4% difference is even acceptable from the factory)

So based on this, i'm assuming at 85% duty cycle (what I plan to run these at max) will be somewhere in the range of 8-10% difference.

How do you suppose this will effect my tuning? Will I have rich spots / pockets?


Lastly, since these injectors are flowing 1500cc even at 25% cruising duty cycle, I'm assuming I should atleast enter these in as 1500cc injectors in the PowerFC, and I was told I could leave the lag time what I was going to put it at (.2)

Anyone have an insight or ideas with this?? I knew I should have stayed away from modified injectors, but it just seemed so much easier to bolt in rather than replace the whole rail and get a datalogit for 1600cc injectors which are really overkill for my setup.

Thanks

cewrx7r1

iTrader: (2)

From previous post, the best option is the 850s that were enlarged to 1200s. The 1300s have had high failure rates.

Should have sent them to RC . Until they are matched, I would not use them.