Which Injectors/Fuel Pump????

[GSTdude98]

I asked this question before but unfortunately i only got one respone, so i figured i would ask it again. I have the Greddy 18g turbo along with the 24r front mount intercooler. I am only running around 10psi of boost and i wanted to get around 20 or so. i know before i do that i need new injectors and fuel pump? i was previously told that i should get nothing less then 660s. Is that true? and should i get the 255 or 190 fuel pump? Thanks alot guys

 

[uni_gst]

a 255lph will do fine, and injectors nothing below 550cc.

 

[GSTdude98]

With that set up, how much PSI do u think i could put out? And do u think denso injectors are the way to go? thanks again

 

[its3much]

it depends on how good your tune will be or is do you even have something to tune with?

 

[GSTdude98]

not yet, im goin to buy the Greddy Profec e-01 and the E-Manage once i come up with the cash for it all, i just wanted to get the opinions of someone who realy knows what their talkin about. i just bought this car and im new to the DSM. so i just wanted someones help and advice. thanks alot man u helped me out!

 

[boostedinaz]

You are already in a bad situation. You have a decent size turbo and the stock injectors and that is asking for trouble. I would read the tunning guide on this site and you really need to get a logger if you plan on keeping you car alive. Dont do anything esle to the car until you get a logger.

 

[GSTdude98]

what do u mean logger?

 

[GSTdude98]

i think im ok because u gota keep inmind that i havent even turned up the boostyet so technicaly i have realy eveen used the upgraded turbo because im still at like stock PSI.

 

[justin_5585]

A logger is available in two forms, to my knowledge. One is through dsm link, which allows you to essentially plug a laptop into your ecu and adjust fuel, timing, no lift to shift, etc., as well as monitor whats going on in your engine. This is expensive and requires an eprom ecu, but is the best way to tune aside from going standalone. The other, more common and cost effective way to log is with a pda and one of the available software. Check out ebay for a cheap setup, or go to pocketlogger.com to look at some of the better setups. A logger basically monitors stuff like: injector pulse width, airflow, knock, intake temps, timing advance, and a few other things i'm sure i've forgotten. All it does is lets you watch all of these things while tuning, to get the most out of your engine without blowing it up (i.e. leaning things out without getting knock, etc.). Hope this helped.

-justin

 

[boostedinaz]

what do u mean logger?

A logger tell you what is going on when you tune your car. Is it going rich, lean, are you IAT to high, what is you timming? It will let you knwo all of those things. If you are tiunning with out one I give you motor a month before it is dead.

i think im ok because u gota keep inmind that i havent even turned up the boostyet so technicaly i have realy eveen used the upgraded turbo because im still at like stock PSI.

Wrong. PSI is not the only thing that is invloved with a bigger turbo. A turbo that is larger flows more air VOLUME than a smaller turbo at the same PSI. So even though you are on low boost you are still flowing more air. Either way read up on how to mod and tune or you will kill it with a quickness.

 

[CanadianTSi]

190 pump and 650's would be perfect.

 

[GSTdude98]

alright guys thanks alot for your help. ill check all this stuff out

-Andy

 

[LRS95TSI]

i would go with the dsm fuel mgmt kit on extremepsi.com seems likes a good deal. i would get a walbro 190 and 680 injectors. then u need a pocketlogger (pocketlogger.com) and a palm pilot m100 off ebay for dirt cheap. or at least thats the route i went with my evo3.

 

[GSTdude98]

i would go with the dsm fuel mgmt kit on extremepsi.com seems likes a good deal. i would get a walbro 190 and 680 injectors. then u need a pocketlogger (pocketlogger.com) and a palm pilot m100 off ebay for dirt cheap. or at least thats the route i went with my evo3.

Well the fuel management system your talkin about is the same as the Greddy E-Manage. So u think the 190 would be fine even if i turn my boost occasionaly up to 20, what im thinkin is, is that ill leave it around 15 and then if im going to race ill turn it up to 20 or so. Which injectors r u suggesting? should i go with the Denso(Expensive) or Delphi(Cheap). or somewhere inbetween? anything around 660 will be fine right even if its like 650 or 680, correct? What does the pocketlogger do differently then the fuel management system? just adjusts everything not just the fuel flow? Thanks alot!

 

[boostedinaz]

What does the pocketlogger do differently then the fuel management system? just adjusts everything not just the fuel flow? Thanks alot!

If you read the post in this thread you would see what a logger does. I think you really need to SEARCH before asking the same question 15 times.

 

[tstkl]

after all our attempts to tell people not to slap on the biggest turbo they can without making their car ready for it... one slipped by us....

 

[Turbo Talon DL]

I'd let him blow his engine, then post in the "Why is your DSM down and how long?" thread. He has to know better since he came to this forum. I've taken quite a bit of knowledge away from here myself, and anybody who uses half of their brain will aslo be able to accomplish the same. You need to sell that turbo and get a datalogger before any more power adders. In about a week or so, he's gonna be like "why did my piston melt?" Dont buy the cheap injectors either, theres a thread about cheap injectors already. You'd be interested in reading this. Denso are expensive for a reason, Delphi's are CHEAP for a reason. I talked to a guy about slapping on a $600 turbo, but skimping on the $40 boost gauge and the $50 A/F gauge. What do u think happened? He killed his $1200 rebuilt 6 bolt ! I tried to tell him, but he wouldnt listen.

 

[GSTdude98]

ok first off before you guys get all pissed i bought the car as it is. i just got it as in like a week ago. so no i was not the one who made the decision to put on the bigger turbo. and yes i am new to the DSMs. i asked for someones suggestions and all people do is tear you apart. i just think its funny.

 

[oldman]

and yes i am new to the DSMs. i asked for someones suggestions.

1. 190 or 255 w/ afpr.
2. 650cc injector.
3. safc to tune the 650cc with.
4. Datalogger so you can see what's going on when tuning with the safc.

Hope this helped. People are not trying to tear you apart, just that we get kids posting about problems after they slaps on a big turbo without any supporting mods all the time. I do see this thread being different that you're asking proper questions in advance so I think we should cut him some slack. Good luck.

 

[boostedinaz]

ok first off before you guys get all pissed i bought the car as it is. i just got it as in like a week ago. so no i was not the one who made the decision to put on the bigger turbo. and yes i am new to the DSMs. i asked for someones suggestions and all people do is tear you apart. i just think its funny.

This will be a good leason then. You need to tell as much as you can, if you dont then we cant help you as much. If you would have said that in the first place then you wouldnt have this problem.

 

[GSTdude98]

im just trying to learn things and i was trying to explain my situation to everyone and i had was all u guys complaining about me and making fun of my situation and saying how stupid i was for doing the stuff that I DIDNT choose to do. i just got this car and i wanna know how i should do things and what i should do to make my car nice and run great. i wanna do the right things with the money i have and in the right process. i appreciate the help from those of you who helped me.

 

[armandovivoni]

why buy a wlabro 190. if you are going to buy a pump buy the 255lph. injectors 550cc could get you what you want. but then if you want to go higher later the are no good. get some 660cc injectors and you will need some type of fuel control(apex, vpc,maf trans. ect...) also if you dont have a fuel pressure regulator GET ONE!

good luck bro

 

[GSTdude98]

thanks for the help Armandovivoni, i appreciate it!

 

[DSMTalonAWD51]

why buy a wlabro 190. if you are going to buy a pump buy the 255lph. injectors 550cc could get you what you want. but then if you want to go higher later the are no good. get some 660cc injectors and you will need some type of fuel control(apex, vpc,maf trans. ect...) also if you dont have a fuel pressure regulator GET ONE!

good luck bro

Fuel Pressure regulators have their place, but if you can get away without one that would be the better choice. A walbro 190 is plenty adequate for an 18g even on 20psi, and 660's would be a better choice than 550's for that kinda boost. I know its just a repeat, but my reccomendation since he is new to tuning would be:

walbro 190
660's
safc
palm logger

(if you have the $option get the densos over Delphi. Densos atomize better and the deadtime on delphis aredifferent than stock. With the delphis you will have poor drivability during a cold start, and they are a little more difficult to tune with)

-my .02

 

[GSTdude98]

how much is an SAFC and what does it stand for, if u dont mind me asking? and about the palm logger, cant i just go to a garage and have them check all the things the logger would read and just get them to adjust it to where it should be?

thanks
- andy