This is why you flow test even NEW injectors

[CO AVANT]

Brand new off the shelf injectors before and after a flow balance. This goes to show you that even new injectors need to be checked... If not you could possibly grenade your motor without even knowing what could have caused it (when you are pushing big amounts of power)

[dougyfresh]

you have to send me the info for that vendor

[A4 TSCHUSS]

Why is the first number of the flow amount scribbled out? Trying to keep the size of the injector a secret or something lol. Weird.......

People and their stupid secrets just kill me.

[absolutegtr]

What kind of injectors are those?

[AudiA4_20T]

Why is the first number of the flow amount scribbled out? Trying to keep the size of the injector a secret or something lol. Weird.......

People and their stupid secrets just kill me.

you know whats funny, one of the "scribble outs" makes it decently obvious with the flash

[[email protected]]

Were these a brand new set of non-flow matched injectors that were tested?

And I agree... the flash really makes the 'secret' not so secret and doing a reverse calc of the lb/hour flow gets the value too.

But I won't tell anyone.

[whiteUSPflow]

What about like brand new TT225 injectors, do you think they should be tested before installed? Thanks

[[email protected]]

I don't think the power levels that the tt225's support really warrant the need to flow match them.

The need to flow match a large injectors comes down to big power under high boost.

By chance if you had the lowest flowing injector installed in the leanest cylinder compounds the issue and damage can occur at high RPMs and boost levels.

[whiteUSPflow]

sweet thank god haha

[HIERLEVELZ]

The scribbled out number is a 6. please big deal

[Silence]

OMG!!!! 630cc injectors, otherwise known as 60# injectors. BFD. Don't see why it was sharpied out either.

[7speed]

it appears to be an 8

[eurogruppe]

its def a 6

[F16HTON]

I'm glad to see you guys are doing the stuff I have been telling you about for the last few years.

Looks like RC engineering did the work. The little touches like this have kept my motor together for the last 4 years.

[dougyfresh]

Does it really matter if a number on the left is scribbled out? I think you guys are missing the point.

All that matters is that the numbers are now within a few percent of each other whereas they were all over the place prior.

[mike-2ptzero]

Why is the first number of the flow amount scribbled out? Trying to keep the size of the injector a secret or something lol. Weird.......

People and their stupid secrets just kill me.

LOL, everything must be a secret in CO now.

[CO AVANT]

Why is the first number of the flow amount scribbled out? Trying to keep the size of the injector a secret or something lol. Weird.......

People and their stupid secrets just kill me.

I did not scribble them out, David did... and these are not 630cc injectors. Winston, these were a brand new set of non-flow matched injectors. I like how you guys care more about the fact that the first # is scribbled out over the fact on what this topic is really about LOL.

[AudiA4_20T]

Jordan, how long did it take them to flow test it and how much was it?

[CO AVANT]

I think he got them done in a day. It was around $130... I'd rather fork out $130 then have my motor grenade... David was telling me that he just saw a high hp/boost car's motor grenade because the injectors were not properly flow-matched.

[AudiA4_20T]

I think he got them done in a day. It was around $130... I'd rather fork out $130 then have my motor grenade... David was telling me that he just saw a high hp/boost car's motor grenade because the injectors were not properly flow-matched.

sux but true, its all just more $$

[NyteEscape]

quick question.

if we're dealing with 440's or 550's such as with a gtrs kit, will flow matching in the beginning keep the car running better for longer? i understand that is not big power or anything, but like greg said, is it one of those things that adds up over time?

just trying to double check my common sense.

[Don Supreme]

sux but true, its all just more $$

1kcc bosch units are already matched up.

[Maverick]

how will this affect the A/F ratio if Jordan's injectors are put on without testing?

[CO AVANT]

One cylinder will run more lean than another if I'm pushing the boost/power to the max. You prolly won't even see any drastic changes through vag readings but it definitely won't be optimized equally throughout the cylinders... If the ecu thinks/is sending equal fuel to each injector than that is what it thinks is happening to optimize a/f, even though the fuel delivery into the head from the injector will not be equal across the board.

I was running 550cc's before and still making damn good power. I should have flow matched tested even those IMO...

[OneBadAudi]

I'm glad this thread was brought up, because i found a site that does it..http://www.injector-rehab.com

I just sent my shitty ass Siemens injector up there for a dynamic flow test and all the other goodies involved in cleaning. If all goes well, i'm sending all of them up to get professionally cleaned. I would recommend trying this first before replacing injectors, Saves you a bunch of money

[[email protected]]

I did not scribble them out, David did... and these are not 630cc injectors. Winston, these were a brand new set of non-flow matched injectors. I like how you guys care more about the fact that the first # is scribbled out over the fact on what this topic is really about LOL.

I was curious to know if you tested a flow matched set to see if they were indeed matched or not for your own needs.

I have purchased flow matched injectors from Kinsler and Racetronix for my build but never tested them and I trusted their rep that they were good.

[Silence]

Not that it matters, but 240 total system lb/hr divided by 4 is 60# aka 630cc injectors. And yes, you should always buy injectors flowmatched. Racetronix often sells their injectors with this option for an extra $10 an injector. Besides flow problems at WOT, it also can help with idle stability as well.

[F16HTON]

Jordan, how long did it take them to flow test it and how much was it?

I paid $60 to have mine done....$15 per injector

[CO AVANT]

From the same company I got mine done at Greg?

[F16HTON]

Yes, but now it looks as if they are charging $24.00 per injector for the standard service, perhaps they did more work to your injectors.

http://www.rceng.com/Fuel-Injector-C...x5GuggNCD6JyHx

[J-jizzle]

What kind of local places will do this for you?

[sean1.8t]

hmm... i wonder how my new genesis 550's are. anyone ever tested them? or does USRT do any testing before selling their injectors?

oh well, i don't think i really need it for myself. not unless the difference in flow between the injectors was rediculously off

[F16HTON]

hmm... i wonder how my new genesis 550's are. anyone ever tested them? or does USRT do any testing before selling their injectors?

oh well, i don't think i really need it for myself. not unless the difference in flow between the injectors was rediculously off

From what I have seen with the Genesis injectors, it would be wise to have them flow matched and balanced, of course I have been saying this for years and it has fallen upon deaf ears.

Spray pattern on the Genesis is horrible.

[KGP]

What kind of local places will do this for you?

Fuel Injectors are one of those things that are normally a mail order thing and not done locally, where diesel injectors can be done locally almost anywhere in the country. If you are dead set on getting it done locally, check for diesel shops in the area and start making phone calls.

[KGP]

Yes, but now it looks as if they are charging $24.00 per injector for the standard service, perhaps they did more work to your injectors.

http://www.rceng.com/Fuel-Injector-C...x5GuggNCD6JyHx

www.Injector-Rehab.com is still only $16 plus free return shipping for the same service as RC

[sean1.8t]

Spray pattern on the Genesis is horrible.

550cc Genesis High Impedence (1.8T non-AEB)
$83.75
The most advanced injector we offer, Genesis 550cc fire factory-correct dual spray cones with super-fast response and best atomizaton on the market today. Safe for up to 8bar rail pressure! Fuel rail spacers not required. Remember to combine with plug n' play harness adaptors to interface with 1.8T wiring harness.

im confused why you say this? aren't you running greentops? THOSE have horrible spray pattern. from switching from the greentops to these genesis have instantly increased my atomization and throttle response. my car would always act like it was going to stall out when i blipped the throttle. but with the 550's, it's smooth as butta

[F16HTON]

I was running greentops and my car ran better that any Genesis cas has...

Have you ever stopped to think you may have been hornswaggled? Genesis injectors were the brainchild of USRT, they are modified injectors and the spray pattern and flow rates were horrible on them.

Think about it, you have to buy an injector from one source and also a set of adapters from the same source...seems genius to me, that way one person can get all of the $$.

Genesis is not even a true name for the product.

You may have gotten a decent set of Genesis, however my flowmatched and balanced greentops have produced more power than any set of Genesis to date.

[sean1.8t]

all i know is that Scott@usrt is a pretty stand up guy from my dealings with him as well as others.

and i got mine with 500 miles on them for $100 less than usrt. WITH adapters. so no hornswaggling here.

and i don't care how much power you've made on the greentops. all i care about is how the car behaves with the new injectors. and the feel is MUCH MUCH more smooth

[F16HTON]

Believe what you want...test your injectors and see

[sean1.8t]

i will. i'll log my car with them and see how far i can push the timing/boost with this 550 file than i could with the old 440 file and greentops

and thanks to the link from KGP, i'll be getting them FM pretty soon here