View Full Version : Good place have injectors flow test?
goldtl
03-04-2005, 10:25 AM
Does anybody know of a decent place i can send my injectors out to have them cleaned and flow tested? (side feed from my sr20det)
Titan
03-04-2005, 11:43 AM
Why send them out?
Find a local shop that has a testing apparatus. I'm sure there are many in Boston. Usually shops that deal with heavy truck fuel injection/pumps are a good bet.
I got mine done locally by a truck shop, cost $2 CDN per injector for flow/leak testing. Mine all tested fine, so they didn't need cleaning. However, I think sonic cleaning was $15 CDN per injector or there abouts. Convert that to USD and that’s approximately what you can expect to pay.
Whatever you do, do not send them out to overpriced shops like RC Engineering. Stuff like this can be done just as competently by anyone local. Plus, they do it before your eyes and only takes a few minutes.
goldtl
03-04-2005, 11:53 AM
Thanks for the tip!
Rownan
03-04-2005, 12:28 PM
www.cleaninjectors.com
I've done business with them, and have nothing but good things to say. They will clean the injectors until they see good flow, and will also give you new seals/caps when they send em back.
Rownan
03-04-2005, 12:40 PM
Why send them out?
Find a local shop that has a testing apparatus. I'm sure there are many in Boston. Usually shops that deal with heavy truck fuel injection/pumps are a good bet.
I got mine done locally by a truck shop, cost $2 CDN per injector for flow/leak testing. Mine all tested fine, so they didn't need cleaning. However, I think sonic cleaning was $15 CDN per injector or there abouts. Convert that to USD and that’s approximately what you can expect to pay.
Whatever you do, do not send them out to overpriced shops like RC Engineering. Stuff like this can be done just as competently by anyone local. Plus, they do it before your eyes and only takes a few minutes.
Sonic testing is good for loosening up deposits, but it won't do much for real dirty or stuck injectors. A good shop will run solvent through the injectors at intervals, and backwash the system several times.
If you just want to clean them for the sake of cleaning em, then sure, take them to a local shop. If you want dead on spray pattern with super accurate flow testing, sending them out is a great idea.
Also, a run of the mill injector machine doesn't have the capability to test and clean side feed injectors... Testing won't be very accurate, and the cleaning process will consist of tossing them in a bath for a period of time. You're better of running sea-foam through the gas tank.....
Titan
03-04-2005, 02:01 PM
Sonic testing is good for loosening up deposits, but it won't do much for real dirty or stuck injectors. A good shop will run solvent through the injectors at intervals, and backwash the system several times.
Running solvents through was included in the cleaning. In fact, the fluid they run through while flow testing has a concentration of solvent in it. The sonic cleaning was for individual disassembled components. If your injectors are stuck to the point where this procedure doesn't work, it's not worth it. Grab another used set. I had to do this, as the first set of used ca18det 370's I bought were clogged. They cleaned them fully and yet none would function properly, so they didn't charge me a dime. If it's a decent shop, you're not losing anything by trying them first.
If you just want to clean them for the sake of cleaning em, then sure, take them to a local shop. If you want dead on spray pattern with super accurate flow testing, sending them out is a great idea.
What are you basing this on? If the injector is properly cleaned, it will have a proper spray pattern. "Super accurate flow testing"?? What the hell is that? Do you know how they flow test injectors? They are placed on a fixture resembling a fuel rail, locating each injector over an individual graduated cylinder. They are then run at full capacity for exactly 1 minute. At the end of the test, you measure the volume within the cylinders in cubic centimeters (cc), hence giving you a flow rating of cc/min. You are not going to get a whole lot more accurate then that, and if you do, it will be negligible.
Also, a run of the mill injector machine doesn't have the capability to test and clean side feed injectors... Testing won't be very accurate, and the cleaning process will consist of tossing them in a bath for a period of time. You're better of running sea-foam through the gas tank.....
Again, what are you basing this on? I happened to pay attention to the entire process as they were testing/cleaning my injectors. Run of the mill injector machine? I bet most, if not nearly all, injector machines work in the manner I described above. Testing will be accurate, and no, they will not just toss the injectors in a bath. That is, if they are at all competent.
I'm not necessarily endorsing local shops. I am however encouraging you to at least investigate what can be done locally at a much lower cost to both your wallet and time.
goldtl
03-04-2005, 03:00 PM
the reason why i need them flow tested is i do not know the flow rating of the injectors. My swap came with beige injectors rather than the factory purple 370cc... i'm assuming they are bigger since the swap also came with a bigger turbo and a chipped ecu. I would just like to know the flow rating before i do any sort of tuning. and i was thinking, if i needed to have them flow tested, i might as well have them cleaned also.
Rownan
03-04-2005, 03:22 PM
I'm not necessarily endorsing local shops. I am however encouraging you to at least investigate what can be done locally at a much lower cost to both your wallet and time.
I'm not going to argue with you. I know how injector testing works, and I'm sure you do too, so you don't have to prove it to me. I was actually not even directing my response to you but more to the OP, Just to give him a bit to think about.. You can't just call up a place you find in the phone book and expect them to have the proper equipment for cleaning/testing injectors, and it sounds like the OP wouldn't know if they did or not anyway.
Your options are:
1. Take your chances and your time to find a local place, maybe get lucky.
2. Send them to a place where you KNOW it will be done properly, for not much more than the cost of shipping.
SoCalS14
03-04-2005, 03:39 PM
RC engineering...done.
Titan
03-04-2005, 03:55 PM
RC engineering...done.
Whatever you do, do not send them out to overpriced shops like RC Engineering. Stuff like this can be done just as competently by anyone local. Plus, they do it before your eyes and only takes a few minutes.
As he mentioned in his last post, he's simply looking to figure out the flow rate and clean them at the same time. For something like that, there is no sense in paying a premium price and waiting a week+ to have everything shipped back. It would be a different story if he were wishing custom injectors or specific work done that would warrant RC’s services.
I think you would be surprised how competent a local shop can be. Mind you, they've probably been doing it for many years. At the least, have the injectors flow tested by a shop in your area. It will give you the flow rating you are looking for, cost little, and if they work properly, you may not even need a cleaning.
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