Reliable mods

[Breezio69]

So I have a 95 GST thats about to roll 190k. As of now the car has as follows; MHI 16g, fuellabs afpr, evo8 fmic with custom piping, tial bov recirculated, cold air intake, rewired stock fuel pump, new head gasket, 3" turbo back thermal exhaust and its running @13 psi... Id like to reliably run in the 300-350 hp range.

would it be sufficient enough to just run evo injectors with an safc with my current fuel pump and attain this goal? Ive heard the 2g fuel pump can out flow the evo injectors up to around 22 psi boost... is this true? any help is appreciated.

I want to run evo injectors for cost and id like to tune with safc for cost also, i dont have the coin to drop a grand on software and big name injectors

 

[2gSpyder4g64]

i think you can rewiere the stock pump, and it will be good for 300 hp, as for tuning i have no idea
good luck

 

[Breezio69]

I understand the tuning is a car by car basis, but id like to know if the stock fuel pump (already rewired) can support what I'm going after... id literally be happy with 301hp... id assume I'm somewhere around 250 with stock boost and the mods I have so far... but if I can jump to like 20 Psi on the 16g with evo injjectors and a tune with what I have that would be great.

 

[MHuddy1213]

my suggestion before you try and put bigger injectors and all is do a compressiom test to make sure its even worth it. with 190k on the motor assuming stock internals you should see if the motor has good compression to determine the life of the motor or if itll need a rebuild in the near future. as for tuning I would never suggest to anyone to get a SAFC.

 

[finnie3d]

I understand the tuning is a car by car basis, but id like to know if the stock fuel pump (already rewired) can support what I'm going after... id literally be happy with 301hp... id assume I'm somewhere around 250 with stock boost and the mods I have so far... but if I can jump to like 20 Psi on the 16g with evo injjectors and a tune with what I have that would be great.

Information is key... Before you buy bigger injectors, upgrade your fuel lines (with a system like Stevetek) and get your SAFC. That way you're still running the stock pump, and you get a better idea of the best injectors to help you reach your goal. May save some money that way too.

Sounds like you've got a great start though. Keep us posted.

 

[Breezio69]

See, I always see threads saying, dsmlink is the way and blah blah... but then I read threads of safc users and they are fine... I'm not going for a 10 second car or anything like that. Just a little upgrade, I've had these mods on the car about a year and would like to switch it up. And like I said before, with the 2k+ I've already dropped in it I'm about tapped out.

Also, the fuel line upgrade, is this just larger lines? Steel braided or what?

And when I bought the car I did a compression test, all checked out well, one cylinder (4?) Was in the high 170's and all others were in upper 180 range. I have a log but don't know where the book is after I moved a few months ago. I feel the motor is solid enough to handle a few more psi

 

[MHuddy1213]

with that CR you should be fine to handle some more boost your stock fuel system can handle 15psi MAX before running out of fuel as the injectors cant handle it there are people running SAFC without problems yes but I just dont suggest it to anyone. your stock fuel lines will handle some extra boost no need to go biiger lines. check the classifieds for injectors you can find good deals on there on them.

 

[V12 Killa]

So I have a 95 GST thats about to roll 190k. As of now the car has as follows; MHI 16g, fuellabs afpr, evo8 fmic with custom piping, tial bov recirculated, cold air intake, rewired stock fuel pump, new head gasket, 3" turbo back thermal exhaust and its running @13 psi... Id like to reliably run in the 300-350 hp range

& having no way to tune your setup

I want to run evo injectors for cost and id like to tune with safc for cost also, i dont have the coin to drop a grand on software and big name injectors

In your situation, I would recommend getting the safc (~$150 +/-) & wideband (~$150) and just tune away.

 

[Breezio69]

& having no way to tune your setup



In your situation, I would recommend getting the safc (~$150 +/-) & wideband (~$150) and just tune away.

Did you read any of the thread? I already suggested to myself buying an safc... so, yeah... I also forgot to mention I have a wideband, boost, coolant and oil pressure gauge installed... all I needed to know was could I reliably use the stock fuel pump and evo injectors for 300-350hp

I have read yes on the pump for the 560's and no as well... which is it?

And again, the fuel pump is already rewired with a fuel labs afpr installed

 

[2gSpyder4g64]

Did you read any of the thread? I already suggested to myself buying an safc... so, yeah... I also forgot to mention I have a wideband, boost, coolant and oil pressure gauge installed... all I needed to know was could I reliably use the stock fuel pump and evo injectors for 300-350hp

I have read yes on the pump for the 560's and no as well... which is it?

And again, the fuel pump is already rewired with a fuel labs afpr installed

well uhmm judge yourself... and make a desition if you need a new pump or not.

from RRE Instructions

the stock 2g pump flows 130.60 lts/hr
The rewird stock flows 156.47 lts/hr
the stock evo 8 flows 159.62 lts/hr
unwired lph 190 flows 168.45 lts/hr

since your using the stock rewired it flows almost the same as the oem evo pump...

 

[V12 Killa]

Did you read any of the thread? I already suggested to myself buying an safc... so, yeah... I also forgot to mention I have a wideband, boost, coolant and oil pressure gauge installed... all I needed to know was could I reliably use the stock fuel pump and evo injectors for 300-350hp

I have read yes on the pump for the 560's and no as well... which is it?

And again, the fuel pump is already rewired with a fuel labs afpr installed

I was agreeing with your decision and recommended getting a WB but I was getting on your case for not having anything to tune with after running like this for a year

560cc won't cut it. Get 650's (still able to tune on the Safc).

 

[Breezio69]

Spyder4g64, thank you for those numbers. I guess I'll get the parts and see what happens.

V12, i have mbc as well, I started with the boost at 10psi, then jumped it to 15, hit cut, backed it off to 13 and all was well, wideband was 10.9wot with no cut. Since then I have rewired the pump but have not messed with the boost at all, this was 6-7 months ago. And sorry for the misunderstanding about the parts recommended. A lot of people just read the first thing in a thread and jump to conclusions

 

[91stocker]

A rough estimate to calculate your fuel pump needs is hp x .42

So your looking for 350

350 x .42 = 147

Typically you want 20% "extra". So your looking at 176lph. So you see from 2gspyder's post that the stock pump even with rewire will be inadequate.

So following that link from RRE
RRE Instructions

You'll see you will need at least an evo 8(201lph) or a 190 pump(208) with the rewire. With the cost being so similar and you already have an afpr you might as well get the 255 wally and be done with it.

 

[KewlWinter]

Find an EVO pump. You can usually find them for $40 to $75 shipped. Small cost for peace of mind.

 

[V12 Killa]

V12, i have mbc as well, I started with the boost at 10psi, then jumped it to 15, hit cut, backed it off to 13 and all was well, wideband was 10.9wot with no cut. Since then I have rewired the pump but have not messed with the boost at all, this was 6-7 months ago. And sorry for the misunderstanding about the parts recommended. A lot of people just read the first thing in a thread and jump to conclusions

It's all good

You'll see you will need at least an evo 8(201lph) or a 190 pump(208) with the rewire. With the cost being so similar and you already have an afpr you might as well get the 250 wally and be done with it.

I'll leave this here.

http://www.dsmtuners.com/forums/tuning-engine-management/244522-injectors-fuel-pumps.html

 

[Tyeler18]

Find an EVO pump. You can usually find them for $40 to $75 shipped. Small cost for peace of mind.

Or for $40-75 you could buy a brand new 255hp

 

[Boosted DSM 32]

Get used dsmlink off of the marketplace i got an eprom ecu socketed with dsmlink v2.5 full for 300 bucks why spend 150 on a shitty ass safc? You cant do anything with those all it does is fool the ecu.. dsmlink you can tune anything and everything set rev limiters, 2 steps, timing, fuel tables ect ect.. I'm telling you dont waste your money on an afc especially with the high miles like yours has youll want a dead on tune to be extra safe..

If I could go back the very first thing I would buy for my dsm would be dsmlink

 

[KewlWinter]

Or for $40-75 you could buy a brand new 255hp

For his horsepower goal, he doesnt need the 255, the EVO pump is quieter and draws less current than the larger pump.

 

[clipto]

It's rather simple and been asked millions of times how to get a setup just like your asking to get out of your car. Just start with a wideband ditch the narrowband. Seriously safc good luck getting a good reliable safe tune and making 300-350hp with that. Been there done that seen 1,000 times it's no good. Just get a walbro 2500 for like $80 and call it a day do waste time buy all them other craps. Really u just need save up for tuning software wether it is flashable ecu or chipped eprom ecu or whatever. But do research on safc you see it only fools ecu and can only fool so much except for it not to run all that great. You want reliable right so don't skip out on buying stuff otherwise it will be another roadblock on the side of the road. Real advice do what you want don't say didn't tell u why waste money twice and not just do it the first time. If your giving free money pm me. good luck enjoy.

 

[Black-Out]

If a factory fuel pump flows close to a evo pump after a rewire then it may be worth looking into a Kenny Bell Boost A Pump which can give you more flow by boosting the fuel pump voltage .......Just a thought - has anyone else tried using one to get a little more out of their fuel system?
Any con's to adding one?

Will-

 

[curt-s]

well uhmm judge yourself... and make a desition if you need a new pump or not.

from RRE Instructions

the stock 2g pump flows 130.60 lts/hr
The rewird stock flows 156.47 lts/hr
the stock evo 8 flows 159.62 lts/hr
unwired lph 190 flows 168.45 lts/hr

since your using the stock rewired it flows almost the same as the oem evo pump...

That's also assuming the fuel pump flows like it did when it was new. Time takes a toll on these things, and they get less efficient over time and can't flow the same rate.

 

[92AWDHX40]

Gotta love the upgrade path. Nice place to start.

 

[Breezio69]

So over the last 24 hours I've been soaking in what you all have said. I do agree that spending money once is better than 2-3 times. The thought of dsm link honestly scares the crap out of me, I'm a decent mechanic, find a broken part, fix it.... the entire broad spectrum of dsm link literally scares the shit out of me. No joke, I got nervous just thinking about all it can do, and all I can screw up with it. That is honestly why id like an safc, simple settings, simple operation.

What I've decided is id like to still get the evo injectors, but ill just get a 255 fuel pump, what the hell.right? I have the afpr for a reason, it may as well regulate too much fuel than not enough.

Thanks for all your input, I've been reading up on multiple ways to tune and I still don't know what I feel comfortable with... that's what it comes down to right? I could have a $1000 stand alone run crappier than an safc if I don't know how to.use it correctly. Thanks again all

 

[finnie3d]

with that CR you should be fine to handle some more boost your stock fuel system can handle 15psi MAX before running out of fuel as the injectors cant handle it there are people running SAFC without problems yes but I just dont suggest it to anyone. your stock fuel lines will handle some extra boost no need to go biiger lines. check the classifieds for injectors you can find good deals on there on them.

Just remember, the point of the Stevetek (or other line upgrade) system is not just for more flow alone, it is to help make sure you get an even amount of fuel to all four cylinders. This makes sure you are tuning with the proper information and maximizing what you have before you begin any upgrades. You can read about it here: SteveTek Labs Research: High Flow Fuel Delivery System.

Think about a thick milkshake. If you try to drink it through a tiny straw, you break your face. The bigger the straw, the easier to drink. The same is true for your motor and fuel. Once you upgrade the lines, you may find that you don't need a Walbro 255 to see 300-350hp - especially since, like you said, the CR indicates the motor can safely accept more boost - as long as there's enough fuel to go with it. The setup they tested on the site has a OEM DSM pump, the line upgrade, 660's and an SAFC.

 

[Luisito]

Check out the upgrade path it really gives you a good idea of what you need. I would go with some bigger injectors, remember that evos come with 310hp stock and when the evo guys start to upgrade, that's one of the first things they get rid off. ECM Link is amazing to help your car run safe.