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-   DIY Turbo Discussion (https://www.miataturbo.net/diy-turbo-discussion-14/)
-   -   injector cleaning fee? reasonable? (https://www.miataturbo.net/diy-turbo-discussion-14/injector-cleaning-fee-reasonable-29553/)

SKMetalworks 12-23-2008 01:50 PM

injector cleaning fee? reasonable?
 
So i called up Doctor Injector and asked what they do. they
Clean
Flow test' before and after
Load test before and after
resistance test
new pintle caps and o rings

for 25$ a piece. is that a good price?

akaryrye 12-23-2008 02:07 PM

we have a forum sponser Deatschwerks who does injector cleaning for $20 a piece. You can go to their website and when you order indicate that you would like the miataturbo.net upgrade and they will give you the "dynamic" cleaning for the price of "basic".

Or you can go to witchhunter and they charge $18 a piece

There is two better options already

Savington 12-23-2008 02:15 PM

What happened to Injector Rehab's $16 each deal?

Braineack 12-23-2008 02:17 PM


Originally Posted by Savington (Post 344817)
What happened to Injector Rehab's $16 each deal?


they aren't a forum sponsor anymore, dunno what deals they give ;)

SloS13 12-23-2008 02:46 PM

I've always used these guys.

Fuel Injector Cleaning and Blueprinting

18psi 12-23-2008 02:47 PM

i thought deatschwerks is 16/piece? at least it was when I did my subaru injectors a year ago

Braineack 12-23-2008 02:51 PM

Basic Service $16/Injector

Looking for better gas mileage, smoother operation, and crisper acceleration?
Installing used injectors and want to be sure they are clean and operating properly?

Then the Basic Service is for you!
PROCESS BENEFIT
3-step ultrasonic cleaning
Optimum atomization and flow
Replace o-rings, filters, and seals
Ensure leak free operation
Check coil
Discover coil problems
Leak test 100psi
Find leaks at pintle
RPM ramp test - Exclusive DeatschWerks test
Pulse-width ramp test - Exclusive DeatschWerks test
Spray pattern analysis
Verify Proper atomization
Static flow test
Check balance of flow rates
ID etching Links each injector to results on report
Lubricate and Bag Preserves optimum working condition
System calculations min/max/avg flow and system balance
basic report (1 page)

ArtieParty 12-23-2008 02:56 PM


Originally Posted by Braineack (Post 344818)
they aren't a forum sponsor anymore, dunno what deals they give ;)


I do miss seeing the injector-rehab girls on top of the forum though
http://www.injector-rehab.com/images/cleaner2.jpg
http://www.injector-rehab.com/images/nurse.jpg

ZX-Tex 12-23-2008 02:57 PM

FWIW I used WitchHunter and was pleased with the results.

kenzo42 12-23-2008 04:56 PM

Injector Rehab was 12.50/injector w/ free shipping back.

levnubhin 12-23-2008 04:59 PM

I also used injector rehab and was happy with their service.
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AbeFM 12-23-2008 05:02 PM

Huh, if they test all the coils and the rest, that's pretty awesome. I just had the TL apart, I should have sent those! Plus, since they were nasty, I just sprayed them out with an air hose. :-P Still, got the visible stuff out.

A word of warning. If you're going to take an early fuel injected suzuki, remove the airbox, stare down the throttle bodies at the vavles, then blip the throttle EXTRA hard to see if the secondary injectors come online.... Expect a large fast fireball to hit you in the face and muff your hair at least 1 pull in 3.

Deatschwerks 12-23-2008 07:27 PM

The price for a basic service is now $19 per injector much to my dismay. It was $16 per injector you guys were right, the prices went up about 2 weeks ago.
Our Forum Special is Everything the Dynamic service covers except for the preflow, for the price of a Basic service.
After we recieve the injectors there is usually a 1-2 day turnaround time.
You will get a Service Report with all the info done on the service including Voltage and Resistance, Flow Rates, etc.
It will look something like this, this is a demo of our Flow report when you purchase one of our products, but you get the idea
http://i372.photobucket.com/albums/o...report_web.jpg

AbeFM 12-23-2008 08:05 PM

What is preflow?

Still seems like an awesome deal since it's testing AND service. Almost makes me want to tear everything I own apart and send you some money. :-)

kenzo42 12-23-2008 08:17 PM

How important are the resistance and voltage values, when flow rates check out fine? In other words, can you still get adequate flow rates w/ poor resistance and voltage values?

M-Tuned 12-23-2008 08:49 PM

I'd support Deatschwerks the next time I need injectors done. $19 is a great deal, and they are a forum sponsor!

Deatschwerks 12-23-2008 09:00 PM

On a dynamic service, We preflow the injectors before they are cleaned. Most of the time when i have to do a dynamic, its because something is causing a problem in the car and the customer doesnt know what it is. The preflow can sometimes tell what the problem was, like say a stuck injector or a bad injector, or one that just needs to be cleaned and has a lower flowrate.

Deatschwerks 12-23-2008 09:08 PM


Originally Posted by kenzo42 (Post 344947)
How important are the resistance and voltage values, when flow rates check out fine? In other words, can you still get adequate flow rates w/ poor resistance and voltage values?


I have only seen that happen a few times, but it can definatly happen. Each type of injector shows a particular behavior when they are coil tested. Like most nissan side feed injectors have a resistance between 10.9 and 11.5 ohms, any injector that doesnt fall within that, i coil test several more times to make sure the voltage is good and its not a bad coil.
No matter how good it flows, if the coil is bad, the injector isnt going to last much longer.

Deatschwerks 12-23-2008 09:19 PM


Originally Posted by Marc@M-Tuned.com (Post 344954)
I'd support Deatschwerks the next time I need injectors done. $19 is a great deal, and they are a forum sponsor!

Thank you very much!

AbeFM 12-23-2008 09:34 PM

An injector which works fine in a steady state (hold it open for 30 seconds and get 250 cc's out of it) might open slow, or not open against high pressure, or even close funky. This means really hard to tune for idle. Say cyls 1-3 all open in 1 ms, and cyl 4 opens shaky, randomly, from 2ms - 4. That means that idle will be hard to tune. And around town cruise will also be weird, with your AFR's reading high even those most cylinders are getting what they are supposed to, etc.

It's similar to the opposite of what low-ohm injectors get you - instead of more predictable, faster opening, it's the opposite.

Mind you this is all off-the-cuff theory out my butt, but it sounds good, no?


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