Deatchwerks injectors

[SX APPEAL]

I"ve been looking around at different tuning options for my upcoming ka-t project and was looking at EFI Specialist's website, where they said they support deatchwerks injectors with their tunes but don't guarantee them to idle correctly. I emailed them about it and their reply was that deatchwerks are cheaply made and "don't flow right." That was about as specific as he got. He suggested going with Sard or Nismo injectors instead. His response implied that deatchwerks are bored versions of stock KA/SR injectors. Since deatchwerks is a sponsor of NICO I was wondering if you guys, especially WD, have any info that would repudiate this? Is EFI Specialist trustworthy? Thanks for the help.

[Tyler]

i bought DW injectors, i havent installed them yet so i have no input on the idle issue, but i know that a few ka-t'ers have them, one guy had issues with his a few times i think but DW replaced them i believe, i think his name is easye2000 or something(sorry if im way off) but anyways, i think they are a pretty stand up company

[1WheelWonder]

I'm on my second set of DWs, 1st ones 550cc and current ones are 740cc. I never had any issues with either set, just make sure you put in the orings with out ripping them.

[DevilMB3017]

I have DW injectors, and I do have some issues on rare occasions that I probably could blame on the injectors but I really don't know if they're the problem or not.

I do know that Enthalpy does NOT want to tune for them anymore because of issues they've had across many different product lines of being remanufactured injectors and not new, high flow.

[WDRacing]

I know of 3 tuners that don't recommend them. I also know of 2-3 members that have had them fail. So...I won't buy them.

I buy brand new top feed injectors. There are millions of options that are from companies that have been in the bizz since Bosche started EFI back in the day. In fact, I buy Bosche every chance I can. Right now I have Ford Racing 42lbers.

WD

[480sx]

I run sard/denso. Everyone who runs them loves them, and i have yet to hear of any of them failing. Iv flow tested two sets and they all came back flowing within one percent of each other.

[SX APPEAL]

OK cool, I've been thinking Sard 550's, but I was kinda hoping deatchwerks were good enough so i could save a little money, but now I'm not so sure I want to risk it. Funny though, I was expecting a little more support for a company that sponsors this club, although I'm beginning to suspect we like them more for their used injector services rather than their own injectors. Anyway, thanks for all the input

[480sx]

Their injector service is incredible. Awesome company. Used them three times for 3 different set of injectors. The last set of injectors that i sent them were for my plow truck. I told them it was a rush situation, i needed my truck up. They got the injectors, finished them in a day, and over nighted them to me at no additional charge for overnight shipping.

Its just, drilled and recored injectors is a hack job from the start. They have much higher failure rates than any reputable performance injector. In addition, im not exactly sure why im no expert on this, they seem to be more susceptible to, over time, becoming out of balance from a few flow charts that i have seen.

[SX APPEAL]

Good stuff, btw I just now realized I've been misspelling deatschwerks in every thread and email for like two weeks now!

[Indyscott]

I bought a set of DW's "phase two" injectors with the adapters last March in an attempt to solve the problems I've had for years on my 93 Q45. My mechanic installed them, and they were ok for awhile. In August the #2 injector failed. DW sent a replacement at n/c, but I still had to pay my mechanic $200 to replace it. Then later last fall I got another failure, which I'm just now trying to replace/repair. I called DW last week and the woman who took my call said she'd research my warranty and call me back. No call back, and today I've called em twice and left an message on voicemail. Maybe they're closed for Presidents Day..?? I'm getting frustrated. My car is at the shop and I'm driving a different car. What's this other company you guys are talking about? Saars?? (sounds like that bad flu from a few years ago) Can someone help me understand my options?

[480sx]

Wait till DW is open and call them to see if your warranty is still valid.

If its not valid, get a injector. You must understand, ALL of DW injectors are 'used' injectors. They are prone to the same level of failure as any OEM mid-high mileage injectors. However, when you get them they are cleaned and flow tested unlike used OEM injectors you might get off of the forums. There is no way of knowing if an injectors coil is going to fail, no tests to see if its worn out, ect. It either works or it doesnt.

[eazye2000]

I've had two Deatschwerks injectors burn out on me in the 12-15k I've been running my car. 740's for what it's worth.They took care of me the first time, considering it was a year and a half since I had bought them. But they were finicky on the second one after about two years. Either way, they hooked me up. But like said before, they are used injectors and are kind of like little time bombs waiting to die.For the money now a days, you can pick up some top feed high impedance jobby's and a rail for around the same money. And then you have the flexibility to go with something ridiculously large later on. I've been reading on some 1000cc top feed high impedance injectors that will spray 1600cc with a considerable raise in fuel pressure, and even run at 92% duty cycle efficiently. And even idle like stock. More on that later.

[480sx]

Yea they new Bosch top feed units seem to be incredible. I want to pick up a set for an E85 build.

[GTR PrYdE]

I'm using DW 550cc's... oh well I'll use them til they burn out, then switch to... V

OT,

These Bosch injectors are proving to be pretty sick,

They can handle 100psi base fuel pressure and can make around.... 1000whp on gas, and probably 800 on E85... while idling like 600's...

Expensive, around $450, but well worth it i'm sure.

High-imp too, can't go wrong.
Modified by GTR PrYdE at 12:40 AM 2/18/2009

[motoman399]

im curious as to what the difference is between high and low Impedance?

[GTR PrYdE]

240's run high imp from factory, and other cars run low imp from the factory (DSM's, some Honda's...etc)

High are saturated type injectors

Low are peak and hold injectors

[SX APPEAL]

High impedance injectors draw more current when the ECU's drivers ground them (which is what opens them) than do low impedance injectors. What can happen if you put low impedance injectors in a system that is designed for high impedance, the low resistance of the injector will let too much current go back to the ECU and will burn out the injector drivers, which basically means a new ECU. Not fun.