Upgrading Fuel System, This good?

[99GsxMD]

I am planning on upgrading my fuel system.

I am planning on getting a 50trim garrett turbo so my plans are getting dsm link to control everything and support my fuel and air. I need some suggestions on with fuel pump to get between 255 and 190 walboro. I have been doing alot of research and lots say i wont need a afpr for a 190 and maybe for a 255. I am planning on 350+ Hp, maybe more. I am also trying to figure out what size injectors i will need. I need to do all this before a upgrade my turbo, so all help is greatly appreciated Thanks

 

[snox135]

Go with the 255 (or Supra) and AFPR. Having the afpr will deliver much more consistent tune. If you are getting DSMLink I would get 1000cc injectors.

 

[MrBoxx]

With a 255lph, you'll definitely need an AFPR. Most people would recommend the Aeromotive FPRs. They're quality units. Also, with DSMLink, you'll be able to easily compensate for any injector size you like. Are you planning on going with a bigger turbo eventually? Other modifications? If so, go with 1000cc or similarly sized injectors. If you're sticking with the 50-trim, you can probably get away with 750-850cc injectors no problem. There's just very little price difference (if any at all) between those sizes and the 1000+ sizes in some cases.

 

[99GsxMD]

With a 255lph, you'll definitely need an AFPR. Most people would recommend the Aeromotive FPRs. They're quality units. Also, with DSMLink, you'll be able to easily compensate for any injector size you like. Are you planning on going with a bigger turbo eventually? Other modifications? If so, go with 1000cc or similarly sized injectors. If you're sticking with the 50-trim, you can probably get away with 750-850cc injectors no problem. There's just very little price difference (if any at all) between those sizes and the 1000+ sizes in some cases.

Yeah. 50trim is the biggest i am going for now. I am gettin dsmlink, so that means i should just get 1000cc injectors, 255 walboro fuel pump. and a aeromotive fpr?

 

[snox135]

Yep, if you get those you will be set if you ever want to upgrade to a bigger turbo.

 

[99GsxMD]

Yep, if you get those you will be set if you ever want to upgrade to a bigger turbo.

Cool cool, that basically answers my question. Thanks! Any other info i may need is greatly appreciated once again

 

[snox135]

Personally I would upgrade the lines to -6an (or -8an if you plan on E85). It is not required but stock lines are a restriction. You will get more flow and be easier on your pump.

 

[Mistaspakles]

I don't know about 1000cc injectors. I've got a 50 trim, DSMLink, 660's and a 255 fuel pump. I laid down 362whp on Elite's dynojet back in the day. The 660's were plenty. The 255 isn't over running the FPR (I've got a FP gauge).

 

[snox135]

I would bet money that it is overrunning your fpr.

With DsmLink he can get 1000cc injectors. He will still idle like stock and won't have to worry about buying bigger injectors for a long time.

 

[2gGSX]

I don't know about 1000cc injectors. I've got a 50 trim, DSMLink, 660's and a 255 fuel pump. I laid down 362whp on Elite's dynojet back in the day. The 660's were plenty. The 255 isn't over running the FPR (I've got a FP gauge).

660's are plenty for 360 whp, but if you're going to get closer to maxing the 50 trim you're probably going to need more.

Personally I would upgrade the lines to -6an (or -8an if you plan on E85). It is not required but stock lines are a restriction. You will get more flow and be easier on your pump.

-6 lines are a waste of time IMO. If you look at the stock line side by side with a -6, you'll see what I mean. The biggest restriction is the stock fuel filter//banjo bolt and the orifice that goes into the fuel rail.

 

[JeffGST]

I don't know about 1000cc injectors. I've got a 50 trim, DSMLink, 660's and a 255 fuel pump. I laid down 362whp on Elite's dynojet back in the day. The 660's were plenty. The 255 isn't over running the FPR (I've got a FP gauge).

You don't have overrun fuel pressure problems because you have a 2G FWD. The problem car is a 2G AWD because of the plastic saddle fuel tank. The siphon inside the fuel tank cannot transfer fuel fast enough from one side to the other.

On a 50 trim I would go DSMlink and 950's and be done with it.

 

[snox135]

-6 lines are a waste of time IMO. If you look at the stock line side by side with a -6, you'll see what I mean. The biggest restriction is the stock fuel filter//banjo bolt and the orifice that goes into the fuel rail.

-6 lines have been proven to flow a lot more than the stock lines.

 

[2gGSX]

Show me the hard data then. Here's a visual comparison of the two:

You must be logged in to view this image or video.

 

[snox135]

The stock line is 3/16th id and a -6 is 5/16th. If you look at VFAQ they gained about 8lpm by upgrading the fuel lines and restrictive fittings. If you want to know the actual flow capacity of each line. Look up the formulas.

 

[2gGSX]

The stock line is 3/16th id and a -6 is 5/16th. If you look at VFAQ they gained about 8lpm by upgrading the fuel lines and restrictive fittings. If you want to know the actual flow capacity of each line. Look up the formulas.

You'll also note that the SteveTek article VFAQ links to only changes the filter to rail section of the stock fuel line in order to get those gains. What this says to me is that the stock line from pump to fuel filter inlet was not the greatest restriction.

However, the ID measurements do show a 278% increase in cross-sectional area by upgrading to the -6's, so I'll admit I was wrong about the -6 being a useless upgrade.

 

[99GsxMD]

You'll also note that the SteveTek article VFAQ links to only changes the filter to rail section of the stock fuel line in order to get those gains. What this says to me is that the stock line from pump to fuel filter inlet was not the greatest restriction.

However, the ID measurements do show a 278% increase in cross-sectional area by upgrading to the -6's, so I'll admit I was wrong about the -6 being a useless upgrade.

Where can i get a good combo deal for a fpr and a fuel pump and injectors or two of the three?

 

[snowborder714]

Where can i get a good combo deal for a fpr and a fuel pump and injectors or two of the three?

Modern Automotive Performance  :: DSM  :: Fuel and Nitrous  :: Fuel Injectors and Drivers  :: Fuel System Packages

 

[alice]

I went with the 255 and Fuelab AFPR. The Fuelab AFPR is great and hold very consistent pressure. Also, from these guys: Street Tuned Motorsports - DSM Fuel System you can get a darn good AFPR combo deal with everything you need to run and plum it!!

 

[99GsxMD]

Modern Automotive Performance #::#DSM #::#Fuel and Nitrous #::#Fuel Injectors and Drivers #::#Fuel System Packages

850cc injectors are big, correct? I will be eventually getting dsmlink, so i know that can support over 1000cc injectors. Is the modern automotive deal a good deal? I am looking to get this ASAP. If i were to buy things seperately, how much would i be paying over?

Also i have stock lines, so this kit says all lines are -6an unless noted. what do they mean by that?

 

[snowborder714]

850cc injectors are big, correct? I will be eventually getting dsmlink, so i know that can support over 1000cc injectors. Is the modern automotive deal a good deal? I am looking to get this ASAP. If i were to buy things seperately, how much would i be paying over?

Also i have stock lines, so this kit says all lines are -6an unless noted. what do they mean by that?

850cc are pretty big, yes. But if going with DSMlink, as you said, they'll be easily supported and be able to idle like stock.

I'd say it's a decent deal. You're not saving like $50 over some other place, but you're not overpaying either. You might be able to find a kit like that cheaper if you piece it all together, but that also takes a lot more time and research. Especially when researching and finding the fittings needed for the AFPR install.

-6 AN line deals with SS fuel line. These require using AN fittings, unlike the stock lines.

Since you have stock lines, as most people here do, you're going to make sure you get a fuel rail adapter. This bolts on to the FPR side of the fuel rail and allows a -6 AN fitting to be screwed into it. As far as I could tell, the MAP kit comes with all the fittings and line that you need to install it. You might want to call or send them an IM and see what all in includes. You're going to need:

-an adapter for your fuel rail
-a fitting for one side of the AFPR to accept the line coming from the fuel rail
-a plug for the other side
-a nipple (not an AN fitting) for the bottom to go to the stock return line - you just run a rubber reinforced fuel line from the nipple to the hard return line
-SS line
-the two fittings that go one either side of the SS line

 

[99GsxMD]

850cc are pretty big, yes. But if going with DSMlink, as you said, they'll be easily supported and be able to idle like stock.

I'd say it's a decent deal. You're not saving like $50 over some other place, but you're not overpaying either. You might be able to find a kit like that cheaper if you piece it all together, but that also takes a lot more time and research. Especially when researching and finding the fittings needed for the AFPR install.

-6 AN line deals with SS fuel line. These require using AN fittings, unlike the stock lines.

Since you have stock lines, as most people here do, you're going to make sure you get a fuel rail adapter. This bolts on to the FPR side of the fuel rail and allows a -6 AN fitting to be screwed into it. As far as I could tell, the MAP kit comes with all the fittings and line that you need to install it. You might want to call or send them an IM and see what all in includes. You're going to need:

-an adapter for your fuel rail
-a fitting for one side of the AFPR to accept the line coming from the fuel rail
-a plug for the other side
-a nipple (not an AN fitting) for the bottom to go to the stock return line - you just run a rubber reinforced fuel line from the nipple to the hard return line
-SS line
-the two fittings that go one either side of the SS line

Does all the things you listed above come with the kit that you posted yesterday?

 

[snowborder714]

I stated in my above post I'm not sure what all comes with it since the picture doesn't show anything nor is there a list. Call them up or send them an IM and ask. They're more than willing to work with you and help you out. Just explain your situation, what your plans are, and they'll get you on the right track.

 

[99GsxMD]

I stated in my above post I'm not sure what all comes with it since the picture doesn't show anything nor is there a list. Call them up or send them an IM and ask. They're more than willing to work with you and help you out. Just explain your situation, what your plans are, and they'll get you on the right track.

Yeah, i just gave them a call and they said it is a direct bolt on. It comes with everything i need from the pump, fpr, and injectors, down to the last little fitting . Now i am just trying to see if this is the best deal

 

[chavez408]

Don't forget to get those flare wrenches for the pump.

 

[snowborder714]

And if you're going to be working with AN fittings, I HIGHLY recommend getting AN wrenches (or at least the specific one for the size you have). They will save a lot of time and won't scratch up your AN fittings.