Siemens fuel injector fitment question...
 

Hey guys I am going to pick up some 750cc Siemens fuel injectors. Specifically the 3145 model.
http://www.fiveomotorsport.com/Injector_MILLED.asp

Siemens 3145 - 750cc/min - 3 bar - Milled to fit Imports w/ ND-type injector. LOW RESISTANCE

they sell a 'normal' version, and a 'milled' version that fits 03-04 Mitsu EVO and the 95-99 Eclipse 2.0. My question is if I get the version for the 2g DSM, will I be able to use the injectors in a B16 fuel rail and B16 intake manifold? I know that Honda guys use DSM 450cc injectors all the time, but I guess i never knew if the 1g and 2g injectors are different, but I don't want to drop $300 on some fuel injectors that do not fit! :)

Just looking for some input from people who might be running Siemens injectors to see what fits.

Thanks,
Chris

Re: Siemens fuel injector fitment question...
 

If they fit the 95-99 tsi they will fit... just need to bore the seal.

Best way is to compare them if you are going to pick them up.

Re: Siemens fuel injector fitment question...
 

so do we just buy honda seals and open them up a bit to fit the 95-99 injector? if that is the case I will probably be able to run these if i get the 'milled for dsm' injectors. :)

Re: Siemens fuel injector fitment question...
 

or you can bore a seal just by explaining to the seal the intricacies of life. it will surely get bored.

Re: Siemens fuel injector fitment question...
 

good point. :)

Re: Siemens fuel injector fitment question...
 

bosch/siemens are one iirc

Re: Siemens fuel injector fitment question...
 

Seems expensive. I got brand new PTE 1000cc Inj for $285 shipped. Made to fit honders.

Re: Siemens fuel injector fitment question...
 

i was thinking the same. why not hit up tuner toys drop 230 or something and get like 650 for a honda.

Re: Siemens fuel injector fitment question...
 

these specific injectors were reccomended to me by fred at electromotive... i don't know what the technical spec is called, but they have a very quick 'minimum pulse width' (or something like that), compared to RC style injectors (not sure how PTE stacks up) that are just 'drilled out to flow more and balanced'. so according to them it will be far easier to get a livable idle and reasonable economy with those injectors.

when i told him i was planning on using RC or something of that nature he asked why i was using them and suggested these...it was the only thing about my setup that he questioned and reccomended a different choice.

now he could just be blowing smoke up my ass, but i have spent a lot of time chatting with him, and i think he just wants to recommend something they trust more, and i can't blame him for that. if the price diff is just $15-$75 on this part (critical part imo) i don't mind spending a bit extra for peace of mind if they truly are higher quality.

I do trust their judgement on their own fuel injection system. :)

Re: Siemens fuel injector fitment question...
 

bottom line is the added benifit worth an extra 100 dollars. cause id be willing to bet that the difference hes talking about will net you 0 many horse powers. Not to sure what he means by a reasonable amount or economy but if you plan on boosting to the levels that require 650's its not gonna give you mileage like a stock CX will.

Just drop like 230 on 750's from tuner toys and call it a day. put the 100 towards a sweet kteller setup or something. just my .02

Re: Siemens fuel injector fitment question...
 

no i totally agree that i will make 0 whp more with the cheapest or the most expensive injectors. these aren't THAT much more money. the hard part is, i cannot find any hard fact specs on either injector, so it makes it hard to make an actual informed decision.

listening to peoples opinions is one thing, but reading spec sheets is another. :)

my thought is, if the siemons injector is a higher quality, and either going to be more flexible when tuning (shorter minimum pulse) or more reliable (not 'drilled' out to flow more) then its easily worth an extra $50-75 or whatever the cost difference is. it may not make more power, but RC injectors aren't exactly known to the best ones out there is the impression i get. and if me cheaping out on a $50 price difference kills my motor (which has a hell of a lot more than $50 into it) i would be pissed. not like i am considering $500+ injector sets. :8

I'm mostly just wondering if you guys could offer insight on fitment.

ps. i dont really care about gas mileage it is NOT a daily driver. But i would like it to idle nicely...

Re: Siemens fuel injector fitment question...
 

but run like ----? whatever you change on the engine the correct tuning of said engine needs to compensate for whatever your doing to it be it simply adding new injectors.

you cannot make more hp with simply changing out the injector. go read a book.

as far as fitment goes, just get some injectors, and slap it on. i had to get my injectors machined down to fit the fuel rail, but those where 1600's.thats the only way to know for sure.the part that really matters is the top portion where you most likely need a bung and oring type deal. the bottom seal just prevents vaccume leaks and whatnot, if its tighter than a nuns ---- or looser than a dieing hooker, then whatever.

Re: Siemens fuel injector fitment question...
 

---- off i know that you have to tune for fuel injectors lol. ::)

i will be running a standalone engine management system don't worry it won't run like ----. and it will be properly tuned. :)
what makes you think that I believe that changing fuel injectors would change power???? my last ------- post i state that i know i wont make any different power no matter what injector i use.

i am not a total newb, but since I am buying injectors that i have no idea will fit or not, i wanted to check with some people who might have done it before. i would rather not spend $300 on fuel injectors to find that they don't fit and have to track down something else. I prefer to get it right the first time.

'just get some injectors, and slap it on' is great if they are able to be slapped on. thats all im trying to find out :8

Re: Siemens fuel injector fitment question...
 

The Precision injectors are mainly ball-type, like the Siemens DEKA injectors. Deka's are actually rated continuous for 95psi, and up to 125psi. The ball-style shoots a very fine mist in a fairly wide pattern, and have as mentioned very quick reations. They are only a little more sensitive to gunk sticking the ball opened than pintle-style are.

I got some 780's (not milled) and fit my d16z6 w/my own seals just fine. I use 5/8" ID x 3/4" OD buna-n tubing to be gasoline safe. I can't recall, but I think it was the upper spacer I had to cut down a little. Considering I got a pre-turbo (NA) d16z6 w/3" exhaust to idle perfect at 750rpm with uberdata, I think they're great.

Re: Siemens fuel injector fitment question...
 

Okay, thanks for the reply. Decent idle would be great to get a handle on. :)

You used non milled precision injectors, or non milled Siemons injectors?
If they are similar like you say, then from what you are indicating it sounds like either the milled or the non-milled would work for my application, or am I misinterpreting you?