injector size fuel delivery 35r
 

Just wondering what injectors i should get and fuel delivery for a 35r to make around 600 @ db dyno.
I have a 255 in tank do in need an inline?

Re: injector size fuel delivery 35r
 

E85 or race gas? Uncorrected or corrected?

2G DSM I assume based on your profile?

I'd say you'll need FIC 1680's or the 2150's.

You will definitely need either a BAP on your 255 and maybe a second pump or a bigger base pump (like the Walbro 400). This is where you get to spend a lot of time researching other people's setups and then decide what you want to do, then spend money and more time making it work. :)

Re: injector size fuel delivery 35r
 

Message DB?

For sure twin 255s or the wally 400, I'd do a hi-z 16xx if pump or 2150 if E85.

Good luck.

Re: injector size fuel delivery 35r
 

^ What he said.

Re: injector size fuel delivery 35r
 

damn that big? Yes i'm doing research as well. I considered a 400 pump and 1450cc injectors. Yes e85 and link v3. I really don't understand what it takes to make these bigger injectors or even high z. Why such big injectors for a 65lb/min turbo? NOOOOOOOOOB

Re: injector size fuel delivery 35r
 

Yeah if you're shooting for 600 at db that's no joke . That's a ton of power considering their dyno is very low reading. Since you're going with e85 I would just go with the 2150's and be done with it.

You will also need a second 255. Not sure if one walbro 400 would support 600 at db probably with a boost-a-pump it would.

Re: injector size fuel delivery 35r
 

Might need a bigger turbo.

Re: injector size fuel delivery 35r
 

must be tougher than I thought with a 35r. ok lets just say I want to max a 35r out? Does that change injector size? What would I need besides link to run 2150's low impedance I assume. I also want to street this car when weather permits.

Re: injector size fuel delivery 35r
 

They don't make a low impedance 2150. At least that I'm award of. But as Shane said you may need a bigger turbo to hit 600hp at DB even if you max the turbo out. Finding link right now of proven setup as yours is going to be very similar to Brads.

I think he did it with a required 255 and boost a pump but maybe I can text him so he can chime in.

Ninja edit:

http://www.mitsustyle.com/forums/showthread.php?t=20970

Re: injector size fuel delivery 35r
 

thats a nice build now we r texting lol. bad ass but was that a 2.0 what power did he make.

Re: injector size fuel delivery 35r
 

Realistically if I hit 500 or more I will shit my pants anyways, just want to do it all safe. so if 600 is over my head not bad to be ready incase of turbo swap nahhhh mean. btw thanks all keep it coming to broke for 2150's.

Re: injector size fuel delivery 35r
 

600 isn't over your head its just probably not possible on a simple setup and standard 35r.

My car has made around or over 500 at DB for about 2 years now. I go through lots of underwear!

Re: injector size fuel delivery 35r
 

If you can't shell out for the 2150's right now you could start with 1650's and see how far you can go on those. The previous owner of my car on a gt4294 made 651awhp at db with 1650's and twin ford gt pumps(ford gt pumps are very similar to the 255). so you can take 1650's pretty far but I would still recommend 2150's.

Re: injector size fuel delivery 35r
 

All great info here guys. Does any of this change because its a 2.4 7bolt or no. My thinking is it doesnt change the fuel needed for the turbo. what i dont understand is how the math works. 35r is 65lb/min right? 2150 injectors 194lb/min? Again im a noob but very hungry to learn. Just need a little help to figure this out.

Re: injector size fuel delivery 35r
 

A 2.4l won't change the injectors you need. Just because your turbo is a 65lb/min turbo doesn't mean you are going to need 65lb/min injectors. Injectors are actually usually rated in cc/min or lb/hr. So if you convert 2150s to lb/hr you would have 204.8lb/hr. The size of the injectors is based on the type of fuel you are going to run and the amount of power you are going to make. E85 requires more fuel so you will need bigger injectors.

Like I said you can probably get by with some 1650s but someone can correct me if I'm wrong from my understanding the 2150s are more tuneable. You end up with better idle quality and driveability with 2150's vs 1650s. I know this is true for aem not 100 percent sure if it translates to link too.

You can try going on dsmtuners and searching. There is all kinds of good info on there

Re: injector size fuel delivery 35r
 

With that turbo, 1650's should be enough. I ran an s362 with 1600's and twin 255's on e85 at 35psi, made 541hp at DB. 1650's should be fine for that turbo setup.

Re: injector size fuel delivery 35r
 

I think you should rock a 16g setup for now and learn some more, asking if the motor is a 7 bolt in regards to fuel injector size is crazy.

Re: injector size fuel delivery 35r
 

Brad made almost 600, but he was spraying a lot of nitrous on top of crazy high boost levels on good E85, not E70.

Re: injector size fuel delivery 35r
 

turbotalon1g thanks thats exactly what i'll do. want to trade? I was asking about the hp made 2.4 vs 2.0. In my post I did say I know the turbo needs fuel regardless.

Again i'm asking questions here to learn dumb to anyone or not. Lets talk about the 1650's like halon asked I also heard the old 1600 sucked for tuning, but they have bluemax in 1650, and what about the 1750/1850 or is that an ebay joke they say fic bluemax

Re: injector size fuel delivery 35r
 

I can't believe I'm gonna say this, but paragraphs please.

I'll trade.

Re: injector size fuel delivery 35r
 

I know i'm hard to get along with here, but I know people killing on 1450cc injectors and even bigger turbos. I would like to here why people say I need 2150, or 1650 or 16g turbos lol. Any math or reasoning besides get these?

Alright shane pick a number and hit me here cause hopefully after the injectors I should about be ready to ask you for a date with the dyno.

Also anyone have any injectors for sale or trade etc?

Re: injector size fuel delivery 35r
 

Then go 1450s.

Re: injector size fuel delivery 35r
 

^ Thanks man thats all I needed to hear you say as your my hero I cant wait to get um. I REALLY appreciate your help most of all.

Re: injector size fuel delivery 35r
 

The guys giving advice in this thread are basing there advice on their experience with dsms. Scheides, Halon, and Aaron all have been around for a long time and all know what they are talking about. I would recommend listening to them.

I also think you need to go on tuners and start utilizing the search function. Search what setups have done what. There is endless amounts of info on the tuners and is one of the best places to start learning.





I think aaron was more telling you to go with the 1450s because you seem set on them and don't want to take the advice given in this thread. 1650s don't cost much more than the 1450s so I don't see the point in using 1450s with your power goals. But its your car if you're dead set on 1450s go with them

Re: injector size fuel delivery 35r
 

If you can't afford to go for 1650's instead of 1450's then you have no business owning a 500awhp DSM. It will soon be sitting on blocks or being sold. Do it once and do it right, get the 1650's at the minimum. They likely won't make 600awhp at DB, but like Shane said that turbo won't either.

Why ask for advice in the thread if you aren't going to listen to people with WAY more experience than you?

Re: injector size fuel delivery 35r
 

^^Cause that's what all the new guys wanting 600whp do?

Re: injector size fuel delivery 35r
 

This is a good question!

Re: injector size fuel delivery 35r
 

Lol you know this guy showed up to a dyno day once screaming 'my car is on fire! My car is on fire!!' Right?

:)

Also, to re-iterate JET's point...it's not like guys that have done this before you don't like you or are better than you--they have simply walked the path alteady and know what is technically possible and what won't. Learn from those that have figured it out already and spend your time on some aspect that hasn't been done yet, like good financial planning!

Re: injector size fuel delivery 35r
 

Awesome everyone is sucking aaron off here for flaming me and never once gave any real advice, just trying to piss people off cause he a h0m0 online...

I understand I may need to go bigger than 1450, no problem buying 1650, or if I had to 2150, but no one has given any help on why....

Re: injector size fuel delivery 35r
 

Someone try to answer the question. What is the math behind turbo and injector or fuel....ANYONE?

Re: injector size fuel delivery 35r
 

Where is that askhole picture that you use? I'd use a kaboom but its not the right time.

Re: injector size fuel delivery 35r
 

Um there is lots of good legitimate real advice in the first page of this thread. There isn't any special equation that says your turbo flows x amount so you need this specific injector for that turbo.
injector size is more determined by the type of fuel you want to run and the amount of power you want to make. If you want to make a certain amount of power on a given fuel you're going to need enough fuel to support that power.

E85 requires more fuel to be used and you want to make some serious power so you are going to need some pretty big injectors. 1450s might be able to support 500whp at db but when 1650s are only $40 more why wouldn't you run them? Especially since 1650s have proven to be able to support that much hp

Re: injector size fuel delivery 35r
 

Guy, you got how many posts of people telling you what to buy, yet you are on here now pissing and moaning about not getting any good advice. :nope:




http://www.jumpoverthere.com/wp-cont...07/askhole.jpg

Re: injector size fuel delivery 35r
 

Yep, no good advice in here... :jackoff:

Re: injector size fuel delivery 35r
 

I would not recommend the old 1600's if you care about consistent drivability. Size wise they're fine, but they aren't the greatest for drivability.

If you'd rather use an online generic sizing calculator then here ya go:
http://rceng.com/technical.aspx?User...6xgYyAslJPYjew

The generic numbers I use for BSFC are gasoline 0.60, E85 0.85.

Re: injector size fuel delivery 35r
 

I have good formulas I use for determining injector sizing based on HP output to the wheels, dyno type, 2WD vs AWD, # of cylinders, general VE of that type of motor, fuel type, base fuel pressure, max duty cycle, and peak HP RPM.

Re: injector size fuel delivery 35r
 

lol do I get an askhole cookie. OK i'm actually starting to get somewhere. I could prob go 1450 but wont max turbo out but will most likely not have and drivability issues...

1650 more power more issues. not sure how bad the issues will be yet...

or 2150 guaranteed to give all the fuel I need deff over board, twice the cost. Do these tune with zero issues?

I think i'm going to go 1650. I will make plenty of power to satisfy just about anyone, and it sounds like shane has no problem trying to make a good tune with them. Map tells me not to get them cause of the known dead spots. Hope they aren't too bad.

Maybe someday I can join the big boys in the 2150cc club, but prob not now unless someone has a good used set.

Re: injector size fuel delivery 35r
 

I have 2150s because they make me feel cool, but it's effects have run out already.

The old 1600s suck, get hi-z injectors I thought I heard rumors of them coming out with some mid sized one's soon.
The old 1600s would have a weird cruise miss, but I got them to idle perfect with BC 280 cams and idle at 950rpms.

Re: injector size fuel delivery 35r
 

My 1600 would hiccup cruising but that was the only issue. Idle everything else was fine

Re: injector size fuel delivery 35r
 

lol doubt you feel cool turbotalon1g but I do now know why you recommend them as I hear they have no tuning issues.

High z do sound nice and all but I just found some bluemax 1650's on the used and i'm just going to try them...

Shane says there could still be idle and part throttle hiccups with the 1650's as well, but for now as long as they are not complete crap I'm sure i'll be more than happy...

I do appreciate all the help so far, it's just been a tough decision for me, and I really want to learn something here not just buy parts....

So who wants to help an askhole get a tune for the injectors and SD good enough to daily a few times and get me 3 hours to db?