I am looking for some sizable injectors and keep running into what I can only imagine are the Chineseium special on ebay. How bad are these off brand injectors. The plan requires E85 and at least 550cc (really more like 630cc) injectors. I can spend $300+ for RX7 injectors or at least that much on new, branded injectors.
Check with a local (or not local) injector shop (Doctor Injector)(or some such)
And tell them what you are doing and buy a matched set of injectors from them.
They may be used but will be clean, flow tested, and matched. And have some kind of warranty.
Injectors are not high wear items and will last for many 200 bazillion miles.
I would avoid any low impedance injectors unless that is what you are replacing, or you have dang good reason to use yesterday's technology.
The main complaints I've seen regarding cheapo chinese injectors is that it's a crapshoot consistency wise - you can get lucky and get a set of good ones, or might get on within spec and two incontinent ones.
I am definitely look at High Impedance. They are about all that is out there for what I want anyway. 600+cc injectors with an 11mm top aren't too common in OEM applications.
Side question, is it safe to enlarge the OEM fuel rail by 3mm? Would that be removing too much material?
Call Tim at Marren Injection----- longtime GRM advertiser, and a guru when it comes to injectors. Do it once, and be done with it. Faulty injectors can be a pain, and the cheapo Chinese stuff (as noted) has spotty quality at best. Your time is worth $$, how much are you willing to spend chasing faulty parts?
For that matter, you will look real smart when your $100 chinese injector blows up a $3500 motor.
I bought flowed and matched Siemens injectors for my Corvette when I supercharged it and they were only around $360/set and came with all the info I needed to change my injector calibration in EFI Live. Well worth it.
I've been running injectors by RC Engineering in Torrance, CA since about 2003. No complaints. They are not expensive.
http://www.rceng.com/index.aspx
Marren comes highly recommended also, as noted above.
BoxheadTim wrote: and two incontinent ones.
Spelling error, or amusing truth?
In reply to 1988RedT2:
I have looked at RC before but they are going to be $800 for 8 injectors.
In reply to 93gsxturbo:
Where did you get those injectors?
I got them from a friend of mine who had an injector shop.
They are not exactly hard to find
https://www.amazon.com/Siemens-Deka-EV1-60-Injectors/dp/B008P0S4BO
You don't have to buy new look at the Ebay sellers who own or work at an injection shoppe.
buy a flow matched set and you are good to go.
93gsxturbo wrote: For that matter, you will look real smart when your $100 chinese injector blows up a $3500 motor. I bought flowed and matched Siemens injectors for my Corvette when I supercharged it and they were only around $360/set and came with all the info I needed to change my injector calibration in EFI Live. Well worth it.
We'll see if the $100 chinese injectors blow up my $250 challenge motor...
I ordered the siemens deka ones for the non challenge turbo build
Streetwiseguy wrote:BoxheadTim wrote: and two incontinent ones.Spelling error, or amusing truth?
Nope, not a spelling error. And fortunately not bad enough to hydrolock the motor, although they made it run reeeeeaaaaaaly rich.
It looks like the Siemens Deka would require a new fuel rail. I did find an ebay seller that is selling claimed OEM Denso injectors in big sizes for about $300 a set. These should work in my stock rail.
How important is dead time data? These look promising but the seller says they only show flow rate (static and dynamic) on their data sheets. http://www.ebay.com/itm/272444190623?ul_noapp=true
Some of them are very, very bad. If all you need is wot or not, they can be made to work with good, programmable EFI. Though scoring a cheap set of older Bosch 160s and some resistors is a better route.
Witch doctor. It's like 10-20$ an injector. They flow test and leak down. Free shipping back to you.
https://sites.google.com/site/sloppywiki/how-to-section/decap-factory-fuel-injectors
Moving here out of your classifieds thread. These guys got 256% more flow out of their stock ls injectors by de-capping.
stock 250 x 250% = 625
If you got similar gains to them, that might put you in the ballpark.
I would love to do this on my challenge saab and maybe switch to e85.
You'll need to log in to post.
