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Help where is the best place to buy some good injector tips. That are new and extrude honed, I have just had my second injector tip crack and break going down the road. They are Hypermax stage II injectors and they work great other than this, It sucks being out on the highway and traveling and have this happen. What tips are the best for all around performance on stage IIs. And can you put tips on without completely taking the injector apart?????
 

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try diy-injectors.com
 

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also i've heard that if you have used nozzles edm'd they have a high chance of cracking.
 

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Yes, injector nozzles cracking is usually caused by nothing more than the EDM process itself.

Look at the stats of cracked bone stock nozzles.....


Swamps has a couple different Extrude Hone sizes to choose from produced directly from Brand New 7 hole nozzles. I believe you can still get the size I run although they usually sell some that flow slightly more than mine do.

Or you can get a set of new nozzles and send them directly to EH or your abrasive machining company of choice. Or send some good stock used nozzles. Mine were just a set I snagged out of the attic space at swamps taken off of someone's A-codes long ago. Balance like a charm.

And no, you do not have to completely disassemble the injector to swap nozzle assemblies. But you will need some general injector eticate to be follwed, such as STRENGENTLY keeping the nozzle and needle together between nozzle assemblies and if you ever even for a second forget which needle went with wich nozzle......trash them....:eek:

Or just send you injectors to swamps or another injection shop and they will handle the meticulous work for you....as well as actually flow them to ensure they all balance for all other reasons maybe not having to do directly with the nozzles.

Good Luck.
 

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Give Ross or Scott at DDP a call. IMHO the best EH nozzles you can get! 360-794-7974. I've seen some of the aftermarket nozzles that are supposedly made bigger when manufactured and when looking in them with a bore scope they look very porus and have pitting on the pintle seat as well as having areas in the tip that weren't cast/machined properly that you could actually see where the pintle was hitting causing potential for the pintle to not seat properly. The only aftermarket nozzles I would run would be from Dipaco as they seem to be of OEM quality.
 

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I had DDP tips on my truck for 1 week. I could not stand them so I took them out and put EDM's back in. The only thing the DDP tips did well was idle....That's it. They smoked like crazy and the truck had no bottom end. I must have tried a dozen programs trying to get them to run right. I got new EDM tips from Bean installed and the truck was MUCH better! Yeah the EH look good on a microscope, but they ran like crap in my truck.
 

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I like Bean's
 

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I have no idea what size they were. Bean has the DDP tips, not sure what he did with them... They idled really nice, but these EDM's I got from Bean are real close the the EH idle.
 

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i ran into the same problem with EH tips. More smoke and less power compared to similar flowing EDM's
 

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I would dare someone to run my nozzles and say anything about smoke, or having no bottom end....

I can take a set of .012 EDM nozzles and make the same complaint FWIW.

A .009 EH nozzle should flow the same as the above mentioned EDM nozzle.

A .0085 EH nozzle is a big nozzle. Would you not expect a .011 EDM nozzle to smoke like hell and be a turd on the bottom? Cause that's probably the equivalent.

JMHO.....well, that and the facts about EH vs EDM.

When going EH think smaller.
 

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After looking at EDM and EH nozzles the EH are WAY nicer. However it depends on the EDM work and how they do it. If they run the electrode to far in and hit the back side of the nozzle and if their process leaves a bunch of nasty slag in them. I've got the set of EDM nozzles that were supposed to be a very high end set. I haven't had a chance to look at them with the bore scope yet but from what I'm told they should be very nice. But the cheap stuff is just junk.

My personal experience with the EH nozzles has been mainly the 29 LPM and smaller stuff. From what I'm told if you get much bigger than that you start spraying down the top of the pistons rather than injecting in the bowl. So the big stuff I'm a little undecided but I know I would NOT buy the cheap EDM stuff reguardless. If the nozzles are in the $250ish range IMHO they are cheap and I think I'd be looking elsewhere. The EH stuff does supposedly flow more per hole diameter which makes sence being the nozzles is smoother and has nice rouneded edges to flow better. IMHO the ultimate set up would be a good quality EDM nozzle to get the hole the diamter where you want it and have it cleaned up with a touch of EH. At that point you are probably talking $1000 or more just in nozzles though.
 

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So let me hear the whys and why nots. I have a new set of Alliant stock 5 hole BD's on the shelf. A few folks say just install them the way they are, they'll work fine. I know DB and Jody have both run them this way. Others have said send them out and get new 7 hole nozzles. OK. So what advantage will the 7 hole nozzles give me over the 5 hole. Need to hear some convincing info with some supporting data to back it up. Who out there can recommend and justify the new nozzles? I still have a little time, as next month I get a new trans, and then I need to figure what I'm doing with the injectors and a supporting new turbo. Drop in won't cut it with the BD's. Let her rip!!
 

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If you get the timing dialed in just right the stock DT530E 5 hole nozzles will work and get just about all the fuel in the bowl. The 7 hole nozzles can be used with standard timing files. Either will work, both should have custom tuning. If you don't want to go to EDM/EH fancy double throw down nozzles just put the stock BD's in and have it tuned correctly.
 
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