I have 171K and was thinking of sending the injecotrs to Cruzinperofmrnace for flow benching and cleaning. Has anyone had their injectors done there and what kind of result.

I have come to the conclusion that I have leaky injecotrs as once in a while I will get a fuel smell .. Ew.

Everything else is tight so I give up and am blaming it on injectors. Also getting not so great MPG.

Let me know your thoughts, For the price ya cant beat it

 

I would recommend them for sure. I did it, and he shows you before and after on the flow, and although I don't know that it makes a huge difference performance wise, it's nice to know that your injectors won't be causing you problems.

 

Is flow benching the injectors better than getting newer ones?

 

Ive heard that it will help smooth out the idle even more because all the inejectors are flowing the same ammount of fuel to each cylinder and arent leaking

pretty obvious,

Also, I would not see why you wouldnt notice something if some of the injectors were flowing that much more/ less fuel then others.

Just a good thing to even them all out so you know they are doing the right thing.

 

I have another thumbs up for Cruzin Performance! I sent him a junkyard set of 2.8 injectors to be cleaned, then swapped them into my motor. They really woke up my car! Definately worth the price- and the turnaround was amazing. I got them back the same week that I sent them out to Rich! (But you might want to email him first, sometimes he gets backlogged with a flood of injector work, usually in the beginning of the year)

Rio's right, the more the cylinders work "evenly", the better the motor runs. That's a flow balance test, you can do it with a fuel injection tester ($90) and a fuel pressure gauge. You hook the gauge up, pressurize the fuel system (key on, pressure raises and stops, then, key off), then hook the tester up to an injector and the car battery. The tester will pulse the injector for a certain amount of time. The fuel pressure should drop a certain # on the gauge. Then you repeat for the other 5 injectors, and once you get those numbers, it becomes similar to a compression test- I forget the spec, but each injector should flow within a certain % of the average of all 6.

But- technically, that's a hard question to answer, Devian. A cleaning would be about $70, but a new set of GM injectors could be $500. The new injectors might work better just because they're new, with less wear on the electrical windings. I said "new GM injectors" because chances are, the injectors you send to Rich are the factory GM units. An aftermarket injector might be cheaper at a parts store, and you might spend $300 instead, but the quality might not be there! I think ADS (superchip makers) sells an injector set for $360- but are they as good as GM? Plus, new injectors should probably come "matched" flow-wise from the factory.

So it's not really a good comparison, kinda like:

high mileage vs Zero Mileage
super cheap vs Alotta Cash

Either way, you "win"... I guess it depends on how much coin you've got in your pockets. If Rich finds a bad injector, he'll let you know... and then you could just get a single junkyard injector (or heck, get the whole set), have him clean the one, and you've got a full set on the cheap.