Disturbing findings flowing and testing injectors
04-14-2016 | 07:54 PM
#32
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WOW, they are pricey, I'm sure you get what you pay for though! After speaking with the owner of Racetronix I was impressed with how they buy each part number of injectors 240 at a time then match/flow them for same price as they are sold everywhere else so I bit the bullet and did a dealer buy in as I want the injectors I buy to start out as close as possible. was impressed with the first set I got from them last week, a second set of (6) 80lb siemans dekas just showed up today that are going in a 600 hp turbocharged 3800 in a 2004 Grand Prix GTP, will post findings once I flow them too, Smitty
Last edited by underpsi68; 04-14-2016 at 08:02 PM.
04-14-2016 | 08:08 PM
#33
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From: frankenmuth michigan
They said they had a custom machine built thats labratory grade, temp controlled, tested at idle , mid than high rpm. I do my test at 750rpm 2ms, 2400 rpm 6 ms, 3000 rpm at 8 ms, 4500 at 9 ms then 5500 at 8 ms, this pretty much mirrors the pw time on my tune from 502 i have on my dyno
04-14-2016 | 08:27 PM
#34
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Pretty slick where you can call up with a serial number of an injector and they can send you a matched replacement.
04-14-2016 | 08:28 PM
#35
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They said they had a custom machine built thats labratory grade, temp controlled, tested at idle , mid than high rpm. I do my test at 750rpm 2ms, 2400 rpm 6 ms, 3000 rpm at 8 ms, 4500 at 9 ms then 5500 at 8 ms, this pretty much mirrors the pw time on my tune from 502 i have on my dyno
04-20-2016 | 07:10 PM
#37
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From: frankenmuth michigan
I flowed and tested the (6)80 pound Sieman's Deka injectors today that came from racetronix as a match flowed set that are going in our 600-horsepower 3800 turbo project and they flowed plus or minus 1% even at high RPMs, impressed!!
04-21-2016 | 02:05 PM
#38
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From: St. Pete Beach, FL
I looked up the ID injectors. They are Bosch EV14s like I used to work on. I think improvements in controlling the tolerances of the parts that make up the magnetic circuit would have helped those. Like I said, the densos with turned main bodies were the cats meow. The EV14 had a deep drawn body with no other machining processes. The coil and coil housing tolerances could get out of wack and still be to print because some moron with an Indian name wasn't smart enough to do a stack up with a radius tolerance and an angle tolerance, I figured it out years after the release but no one cared. I think that could have affected the mag circuit strength and repeatability.
04-25-2016 | 10:42 PM
#39
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From: frankenmuth michigan
Flowed a set of stock injectors Saturday from a 220,000 mile 6.2 chevy LS that has sat for a year (customers motor thats going in a jeep), they flowed within 5% of each other with just 15 minutes of cleaning in ultrasound, flowed a set of injectors today from a 90,000 mile 2000 Camaro LS 5.7 that sat all winter that we are installing cam and intake on, they also flowed within 5% with 1 cleaning cycle in ultrasound, it seems these stock oem injectors flow MUCH better than any Mercruiser injector I have tested to date!
