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Im Having Problems With My Car With Various Bolt Ons Experts Please Help

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420Adriver

15+ Year Contributor
558
2
Mar 12, 2006
south, Mississippi
ok heres my story, my car will make bad popping sounds and will not let me rev up to high rpms and heres where i know the problems are coming from, its the injectors, first of all my mechanic never could get the o-rings on the injectors to fit snuggly into the obx intake manifold and thats where my problem started, well i had an obx fuel rail and we never could get it to bolt into the intake manifold let allone fit with the o-ring that was on the previous fuel line(the o-ring was to small or something according to concept illusions) so we used the stock fuel rail with a little modifying, well apparently it wasnt bolted in there good because i heard something go off while i was driving and i looked underneath the hood and the fuel rail was loose not bolted in at all so i took it to the mechanic who put it in and all he could tell me were reasons how i probably did it.... and its been sitting at his shop for over a month now, someone told me to buy an safc2 and that might help so i did and installed it but then i realized that i was gonna need something to detect the air/fuel ratio and i bought one of those gauges and when we wired it up my fuel was going crazy it would go from rich to lean and so on.
but here is the current status of my car the o-rings on the injectors need to be replaced and the fuel rail is not bolted in and the car will start but only with the above stated problems and now the mechanic acts like the fuel rail wont even bolt into the intake manifold he told me that whoever made that intake manifold(obx) made a crappy one. so whats your guys opinions i could really use your help noone else around here will touch my car i live in a rather small town and ive been to like 20 mechanics in hopes that one of them could help me and all they ever tell me is " well kid you should of bought a 350":mad:
 
420Adriver said:
ok heres my story, my car will make bad popping sounds and will not let me rev up to high rpms and heres where i know the problems are coming from, its the injectors, first of all my mechanic never could get the o-rings on the injectors to fit snuggly into the obx intake manifold and thats where my problem started, well i had an obx fuel rail and we never could get it to bolt into the intake manifold let allone fit with the o-ring that was on the previous fuel line(the o-ring was to small or something according to concept illusions) so we used the stock fuel rail with a little modifying, well apparently it wasnt bolted in there good because i heard something go off while i was driving and i looked underneath the hood and the fuel rail was loose not bolted in at all so i took it to the mechanic who put it in and all he could tell me were reasons how i probably did it.... and its been sitting at his shop for over a month now, someone told me to buy an safc2 and that might help so i did and installed it but then i realized that i was gonna need something to detect the air/fuel ratio and i bought one of those gauges and when we wired it up my fuel was going crazy it would go from rich to lean and so on.
but here is the current status of my car the o-rings on the injectors need to be replaced and the fuel rail is not bolted in and the car will start but only with the above stated problems and now the mechanic acts like the fuel rail wont even bolt into the intake manifold he told me that whoever made that intake manifold(obx) made a crappy one. so whats your guys opinions i could really use your help noone else around here will touch my car i live in a rather small town and ive been to like 20 mechanics in hopes that one of them could help me and all they ever tell me is " well kid you should of bought a 350":mad:

Well after looking at your mods I would first off say go back to stock. You don't need bigger injectors if your not boosted and you definetly don't need an aftermarket fuel rail. Stock, the car runs a tad on the rich side to begin with, so the 330's or whatever you got aren't necessary. As for the air/fuel gauge going crazy, that's because I'm sure it is a narrow band air fuel gauge which can only measure air/fuel ratio at wide open throttle. If you want a real air/fuel gauge get a wideband, the problem with that is it's gonna cost you a few hundred dollars.

Edit: sorry thought you said an OBX fuel rail, not manifold. In that case, first try putting the stock injectors back in with the obx manifold, I don't know how new you are to this game, but with some searching and a few basic hand tools, you should be able to do the work yourself
 
k i will try that the only reason i had bigger injectors to begin with though is because intended on going turbo but after being scammed so much on ebay ive had to put it off for a while i didnt now if anyone else had this problem but the obx manifold that i have its like the holes are smalled where the injectors fit on my stock manifold they fit in perfectly but with the obx its like the injectors are to big, whats your advice about that
 
and also if i go back to stock injectors can i assume that i wont need a fpr now?
 
Why would you put the 36lbers in before the turbo? Go back to stock injectors, go back to stock intake manifold(port it and polish it if you want) and sell the OBX on ebay. Problems should be solved. Use a stock regulator too.
 
i dont have a stock regulator mines a 97 so should i put one on there ? and since your telling me to put the stock one back on can i assume that the obx one is crap?
 
oh and the reason i put the 36lb injectors on was that concept illusions told me i could control it with an safc2 but i dont know yet i havent had a chance to program .
 
forgot something else to:D i do have an adjustable regulator an i was gonna install it but i was wondering how you guys ran your return line to the fuel pump? i know a line goes to vacuum one goes to the side of the fuel rail and one return line goes to the fuel pump and i was just told on this thread not to use the obx fuel rail which on the side of it it has a place for me to run my regulator so since i should use that and my stock fuel rail doesnt have a place for it should i just go to a junkyard and find a regulator off of a 95 and take it off?
 
420Adriver said:
i dont have a stock regulator mines a 97 so should i put one on there ? and since your telling me to put the stock one back on can i assume that the obx one is crap?
yes you do, and if you haven't touched it yet, then don't. Your obviously having issues with the OBX, so why bother with it?
 
k ill look around junk yards for a 95 eclipse to pull the regulator off, and when you port your manifold what kind of bit did you use for your drill and whats a safe boring size
 
i misread your post so are you telling me that i have a fuel pressure regulator? because ive seen the 95's and mine and they are different in some aspects like the regulator but just incase i was misinformed were is my regulator at?
 
420Adriver said:
i misread your post so are you telling me that i have a fuel pressure regulator? because ive seen the 95's and mine and they are different in some aspects like the regulator but just incase i was misinformed were is my regulator at?

Yes you do have a fuel pressure regulator (FPR). the 95 and early 96 fuel system is different than the late 96 to 99 fuel system. Your FPR is located back near your tank, whereas the 95 early 96's have it right off of the rail.

At this point, there is no reason for you to install an aftermarket FPR. Also, you don't need an aftermarket fuel rail to install an FPR if/when you install a turbo, really there is absolutely no need for the obx fuel rail, I'd just sell it on ebay and get back some of your money.
 
cs82685 said:
Yes you do have a fuel pressure regulator (FPR). the 95 and early 96 fuel system is different than the late 96 to 99 fuel system. Your FPR is located back near your tank, whereas the 95 early 96's have it right off of the rail.

At this point, there is no reason for you to install an aftermarket FPR. Also, you don't need an aftermarket fuel rail to install an FPR if/when you install a turbo, really there is absolutely no need for the obx fuel rail, I'd just sell it on ebay and get back some of your money.

sorry to interrupt but, are the FPR universal or i have to look for my engine model?
 
oki will start on that im working on p&ping my intake manifold right now but i have a few more questions 1st should i run an intercooler with my turbo kit im getting? i have a 62-1 master power turbo a manifold with the esternal wastegate i have my oil pan painted and already with the fitting for the oil line, 2nd is there a way if i can see if there is people in my area that have done this by using these forums? 3rd what place do you recommend for me getting the rest of my parts like my downpipe(5 bolt) bov external wastegate oil lines and intercooler(if i should get one)+piping 4th ive seen some people make it seem like its real easy to put on a turbo is it ? like taking off your header and dowpipe and putting on your new exhaust manifold bolt the turbo to it and wastegate running the downpipe, and the oil lines plus intercooler? and is it something that i could do or is this more of a mechanically inclined thing and also where do i hook in the other oil line i now one of them goes to my oil pan but where does the other go. i live in a town where ive never seen another import mostly american so theres really noone to take it to
 
420Adriver said:
oki will start on that im working on p&ping my intake manifold right now but i have a few more questions 1st should i run an intercooler with my turbo kit im getting? i have a 62-1 master power turbo a manifold with the esternal wastegate i have my oil pan painted and already with the fitting for the oil line, 2nd is there a way if i can see if there is people in my area that have done this by using these forums? 3rd what place do you recommend for me getting the rest of my parts like my downpipe(5 bolt) bov external wastegate oil lines and intercooler(if i should get one)+piping 4th and is it something that i could do or is this more of a mechanically inclined thing and also where do i hook in the other oil line i now one of them goes to my oil pan but where does the other go. i live in a town where ive never seen another import mostly american so theres really noone to take it to

Ok, first you should read this thread because it will basically tell you everything you need to do and you can then decide if any of these steps are something you wanna do yourself or have a mechanic do. http://dsmtuners.com/forums/showthread.php?p=1509962#post1509962

If your planning on running any more than 5psi you should probably be putting an intercooler on.

Wastegate-most manifolds made for an external wastegate on the 420a are flanged for the turbonetics deltagate or tial 35-38mm, they have the same flange. If the flange looks like this: http://www.extremepsi.com/store/images/t_17677.jpg THen I would get a Tial from here: http://www.extremepsi.com/store/customer/product.php?productid=16320&cat=446&page=1
It's the cheapest I found and I had it in 2 days. The Tial is more expensive than the deltagate, but the deltagate has been known to fail (happened to me) Well worth the money IMO.

To search for someone somewhat near you that might be able to help, post in the regional forums hear or go over to 2gnt.com sign up there and see if you can find someone from there.

If you are going to be boosting somewhat soon then you can stick with the injectors you have. However your going to be needing a rising rate fuel pressure regulator. Your best bet here is the vortech SFMU, it is good for low boost but can still be pretty easily used up to 15psi on a built bottom end. http://www.vortechsuperchargers.com/support/fmu_sfmu.html

Then you can just search SFMU and whatever size injectors you have to get an idea on how you need to have your sfmu setup for the injectors you have.

Here is a diagram that shows you exactly what parts you need and where they need to go to install the sfmu: http://www.2gnt.com/nuke/modules.php?name=Sections&op=viewarticle&artid=82

If you go this route, then you will have to disable your stock fpr. This diagram isn't the greatest, but it will give you an idea on how to disable the fpr, it's a fairly straightforward procedure. http://memimage.cardomain.net/member_images/2/web/578000-578999/578236_43_full.jpg

You are also going to need a fuel cut defender (FCD) or missing link, I went with the missing link because of the ease of installation

It's also recommended you get 4g63 exhaust manifold studs and nuts to put on your manifold, a quick search here or on 2gnt should give you the part numbers from mitsu


420Adriver said:
ive seen some people make it seem like its real easy to put on a turbo is it ? like taking off your header and dowpipe and putting on your new exhaust manifold bolt the turbo to it and wastegate running the downpipe, and the oil lines plus intercooler?

If you read quite a bit before hand, the install is not all that difficult, but I would still give yourself at least two days to do it. Having to fab up piping for a downpipe, or intercooler will definetly add time to the install too.
 
and before i did all this i was wanting to run a compression check, check for oil leaks and anything else , where would i take it to get this kind of thing done or is there a part i can buy at a place like auto zone to check this
 
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