Do i need a fpr

[an orange crayon]

i have a walbro 255 but i will run stock injectors with a 16g turbo. Ive read in a few places to get a fpr, but do i really need one?

 

[Scoobystyl]

You need injectors to benefit from the 16g, and in some cases the stock fpr will be fine but its a matter of time before it goes bad, i used the stock one for 500 miles and didnt have any issues but im sure it wouldnt have lasted much longer

 

[an orange crayon]

You need injectors to benefit from the 16g, and in some cases the stock fpr will be fine but its a matter of time before it goes bad, i used the stock one for 500 miles and didnt have any issues but im sure it wouldnt have lasted much longer

so injectors soon and in near future a fpr.

 

[awddarrell]

This is a topic that alot of ppl, may disagree on just from experiences. I myself would use a AFPR, at least some EVOVIII injectors, (560cc or better). it is not going to be cheap, I had my 450s maxed out at around 130% it was insane. They couldnt keep up with the 16g at 16psi. I was also running a 255 at the time. and it would fall on its face at 4800rpm. Pulled like none other up to that but, then just fell right on its face. Anyway, enough story telling.
I recommend, injectors, AFPR, WB o2, and tunning solution. ECMLink, or AEM ECMLink (obviously the cheaper and more reasonable choice). Some ppl have had great luck with SAFC,( but it should only be a short term solution imo)

 

[norcal_drifter]

my setup was:

pte 60 trim
pte 950cc
dsmlink v3
speed density
walbro 255
fp2

and i had a stock fuel pressure regulator, i never had a problem i daily drove it for 2 years and i constantly had her up to 8k+

from what i heard its hit or miss

 

[talon2gbuyer]

as darrell said, you could probably get away with an Apexi SAFC for short term length of time. Keep in mind you cannot use the SAFC as a permanent fix to your tuning issues, but rather use it only until you can afford to buy an AEM standalone or DSMlink.

 

[gtrej01]

I have the same question?

Do I need a FPR?

My current mods are listed in my profile.

I am running RC 1000cc Injectors
running on E85
dsm link V3
evo 3 turbo (35lbs of boost)

I recently picked this car up with these mods on it.

Any help is appreciated.

 

[filabob1]

I would say yes. I'm actually surprised, with those mods, the previous owner didn't already have one on there.

 

[99ECLIPSEGSXDSM]

It's better to be safe. Just get a fpr and not have to worry about it

 

[LiquidX]

The big question is, what are your plans for the car?

If you are just going to stick with the 16g and use it to putz around and not do any track racing then yes, a SAFC would suffice. If you plan on changing your setup a few years down the road or are interested in any sort of racing, I would go and get ECMLink or an equivalent before any more upgrades.

You will want larger injectors to use the 16g properly. You are maxing out the stockers at around 12 lbs of boost from the 16g.


@Gtrej01

If you picked up a modded vehicle with those, then I'm sure it already has an AFPR on it. As for the 35 lb of boost from the 16g, turn that sucker down. You shouldn't be going much more than 25-28 on that thing before you are well outside of its efficiency rating and just blowing hot air.

Is it a MHI or GT turbo?

 

[Dhan]

I was convinced to run an FPR on my Talon just to be safe after reading through this entire thread.....http://www.dsmtuners.com/forums/newbie-forum/256430-walbro-255-stock-fpr.html

 

[gtrej01]

The big question is, what are your plans for the car?

If you are just going to stick with the 16g and use it to putz around and not do any track racing then yes, a SAFC would suffice. If you plan on changing your setup a few years down the road or are interested in any sort of racing, I would go and get ECMLink or an equivalent before any more upgrades.

You will want larger injectors to use the 16g properly. You are maxing out the stockers at around 12 lbs of boost from the 16g.


@Gtrej01

If you picked up a modded vehicle with those, then I'm sure it already has an AFPR on it. As for the 35 lb of boost from the 16g, turn that sucker down. You shouldn't be going much more than 25-28 on that thing before you are well outside of its efficiency rating and just blowing hot air.

Is it a MHI or GT turbo?

its a MHI ported and polished. I currently have it running 70% of that boost per the TRU boost gauge.

 

[LiquidX]

What do you mean by running 70% through tru boost?

 

[99ECLIPSEGSXDSM]

^ +1

 

[an orange crayon]

ok so my set up fully is
SAFC
greddy bov
boost/vac gauge
air/fuel gauge
greddy turbo timer
walbro 255
16g trurbo
turbo xs manifold


So i have a safc, just cant aford a link rite now. Should buy injectors,fpr,link in that order or what?
thanks

 

[gtrej01]

What do you mean by running 70% through tru boost?

The car is tuned to run on 35lbs of boost but I was told i can run a certain % through my AEM Tru boost gauge. It is currently set at 70 % of 35 lbs.

Correct me if Im wrong but that is what I was told.

 

[dsm_92_fwd]

No, you dont need a FPR at that level, talk to any shop and they will tell you that youre fine to run it. Im currently all bolt ons on my 90awd and its perfectly fine, will your car benefit from it? yes a portion, but it is absolutely needed? Certainly not.

 

[LiquidX]

Would you mind taking a picture of the bay to see what all is in there?

 

[cola]

The car is tuned to run on 35lbs of boost but I was told i can run a certain % through my AEM Tru boost gauge. It is currently set at 70 % of 35 lbs.

Correct me if Im wrong but that is what I was told.

Maybe you are referring to your injector duty cycle (IDC) at 35 lbs of boost

 

[Spoolin92GSX]

I would say you do, if it's a "high pressure" version of the 255lph. I read through several threads before deciding I needed one; it's like most other things on DSM's, every car will react differently. Some cars had no problems, others nearly blew fuel lines from the added fuel pressure. The reason we have to get AFPR's is because the outlet on the stock FPR is too small to bleed off the extra flow/pressure from that large of a fuel pump. But like I said some cars are OK without, some aren't. I personally decided it wasn't worth the risk of popping a fuel line under the hood. YMMV

 

[NHerron]

You can always buy the 190LPH Walbro and not need the FPR. But if you're ever going bigger than a 16G turbo I would stick with the 255.

 

[dsm_92_fwd]

As stated before, its not completely needed i'm on a 255 wally 780cc injectors and e316g with other supporting mods on speed density via link, no fuel pressure problems what so ever.

EDIT and running 25psi all day everyday not a single issue

 

[NHerron]

*Ah damn, just saw you have a SAFC.

Look around the other 1K threads on this very scenario.
Your call but IMO, no FPR + 255 is MickeyMouse tuning.

 

[Lou98GSX]

i ran a supra pump for a long time with the factory regulator with no problems . if you rewire the pump then you should have an adjustable regulator with a gauge.

 

[Rsawd95dsm]

The car is tuned to run on 35lbs of boost but I was told i can run a certain % through my AEM Tru boost gauge. It is currently set at 70 % of 35 lbs.

Correct me if Im wrong but that is what I was told.

I think what this guy means (I could be wrong) but the TRU boost gauge reads up to 35lbs of boost and the boost meter is going up 70 percent of the way on the boost gauge. So 70 percent of 35 = 24.5lbs of boost