Can i run a big 16g safely.

[Chipper308]

found an evo III big 16g not ebay. can som1 tell me if i can buy this and slap it on my car at stock psi safely without seeing tons of fuel cut etc etc. saving up for link but im not there yet. i have an smic and the piping for a 16g/14b setup going to the smic. will the turbo just bolt up and replace the stock system at this point? minus the piping.

 

[clipto]

Yes at low boost like 10psi. Grab a walbro 255 fuel pump too and toss it in that would help.

 

[Chipper308]

Yes at low boost like 10psi. Grab a walbro 255 fuel pump too and toss it in that would help.

i could do that, allthough i dont have the cash on hand to dump on a afpr at this time... kinda dont have oney for the turbo but its a good deal so...

 

[monster758]

a 255 would be over kill. A wally 190 would do just fine and still have play room. the price difference between the two is not a whole lot though. and yes running a 16g at stock or close to stock psi is fine. You will really notice a difference with a good tune.

 

[WES_393]

The stock feed and drain won't work. You can modify the drain to fit, but you'll need a different feed line.

Like mentioned, as long as you stay around 10psi you should be fine.

 

[Chipper308]

a 255 would be over kill. A wally 190 would do just fine and still have play room. the price difference between the two is not a whole lot though. and yes running a 16g at stock or close to stock psi is fine. You will really notice a difference with a good tune.

in theory i could turn my boost up and watch my wideband to make sure my afr's stay in a safe zone correct? and do i NEED to have a 190lp or can i just stick with the stock for now on a rewire? i plan on doing link injectors and fuel pump all at once...just not right now

The stock feed and drain won't work. You can modify the drain to fit, but you'll need a different feed line.

Like mentioned, as long as you stay around 10psi you should be fine.

Sweet, thanks! any vendors with decent prices to get some braided feed/drain lines?

 

[WES_393]

a 255 would be over kill. A wally 190 would do just fine and still have play room. the price difference between the two is not a whole lot though. and yes running a 16g at stock or close to stock psi is fine. You will really notice a difference with a good tune.

A 190 won't even safely support a small 16g without being rewired. And they are exactly the same price from most vendors.

 

[Chipper308]

A 190 won't even safely support a small 16g without being rewired. And they are exactly the same price from most vendors.

so dont install untill a 190lp or 255 is installed? and with the 255 u NEED an afpr dont you? which kinda means the 190 and 255 arnt in the same price bracket correct?

 

[WES_393]

so dont install untill a 190lp or 255 is installed? and with the 255 u NEED an afpr dont you? which kinda means the 190 and 255 arnt in the same price bracket correct?

You can safely run the turbo at stock boost with the stock pump. But in terms of safely supporting the maximum amount of airflow your turbo is capable of, the 190 falls short. Once rewired they flow about the same as a non-rewired 255. So you might as well go with the 255.

The pumps cost exactly the same. I wouldn't say you need an AFPR to run a non-rewired 255, but there is a possibility of overrunning the stock FPR at idle. So if your oil starts have a strong gasoline odor I'd install an AFPR.

 

[Chipper308]

You can safely run the turbo at stock boost with the stock pump. But in terms of safely supporting the maximum amount of airflow your turbo is capable of, the 190 falls short. Once rewired they flow about the same as a non-rewired 255. So you might as well go with the 255.

The pumps cost exactly the same. I wouldn't say you need an AFPR to run a non-rewired 255, but there is a possibility of overrunning the stock FPR at idle. So if your oil starts have a strong gasoline odor I'd install an AFPR.

okay so my plan to throw the big 16g on with the stock systems now at give or take 12psi as well as watching afr's and keeping them ideal is fine? and down the road when i install the 255/afpr, link and injectors ill be able to start pulling more life out of it is a good plan?

 

[WES_393]

okay so my plan to throw the big 16g on with the stock systems now at give or take 12psi as well as watching afr's and keeping them ideal is fine? and down the road when i install the 255/afpr, link and injectors ill be able to start pulling more life out of it is a good plan?

Sounds good, except the 12psi. On my 1g I had a legit Evo 3 16g and would get fuel cut at 12psi, so I'd hook the boost line straight to the actuator to run as low of boost as possible.

 

[Chipper308]

Sounds good, except the 12psi. On my 1g I had a legit Evo 3 16g and would get fuel cut at 12psi, so I'd hook the boost line straight to the actuator to run as low of boost as possible.

hm...looks like ill be doing research i got a T25 right now and it runs 15psi and never spikes...and thats no mbc... hmmmm

 

[WES_393]

If it's hooked to the stock boost control solenoid, there might be an issue with the solenoid bleeding off too much pressure. If it's hooked to the actuator you might have an aftermarket 1 Bar actuator. Stock boost for the T25 is around 10psi, definitely not 15psi.

 

[Chipper308]

If it's hooked to the stock boost control solenoid, there might be an issue with the solenoid bleeding off too much pressure. If it's hooked to the actuator you might have an aftermarket 1 Bar actuator. Stock boost for the T25 is around 10psi, definitely not 15psi.

oh u know what, once day i was tinkering and i think i pulled the regulator out, i forget correct terminology...the thing u pull out with a wood screw to give better flow. would that make this large of a change? and if so what would be my fix to this if i wanted to throw the 16 on? or did i just basically fry myself on that one

 

[wmrcs]

oh u know what, once day i was tinkering and i think i pulled the regulator out, i forget correct terminology...the thing u pull out with a wood screw to give better flow. would that make this large of a change? and if so what would be my fix to this if i wanted to throw the 16 on? or did i just basically fry myself on that one

Pulling that thing out only gives you an extra 1-2 lbs, not 5 ha.

 

[clipto]

Everyone I know runs walbro 255 without a afpr so over rated the battle between the 2 running with or without a afpr for years, you will be fine running them. Why waste money on a 190 fuel pump when can get a walbro 255 shoot if you lived by me I would just give you one of my walbro 255. 16g install kit is all needed for 16g.

 

[miliman13]

^ i second this, ; i ran 255, with 750.cc Big 16G for years no issue with stock fpr..

But if you rather have peace of mind, and you would like to get a afpr, then i would just get a DW300 pump (325,liters-per-hour), i run one with a fuel.lab AFPR, and they go for almost the same price of a walbro 255 . only pro with this pump, is that you will already have it in place, for when you go for more mods/power. * just my 2 cents.

 

[Chipper308]

VID_20130427_135812_013_zpsa7e147e3.mp4 Video by josh_irish1 | Photobucket

here my boost gauge under load. opinions?

 

[WES_393]

If that boost reading is accurate you will most likely have issues with a 16g on stock injectors, regardless of fuel pump. However, that gauge doesn't seem accurate to me. The needle seems to sweep too easily and vacuum is too good to be true. Almost 30 in/hg of vacuum is nearly unheard of. So I'd test the gauge with a regulated compressor or swap it with a different gauge.

FWIW, my 7-color Glowshift boost gauge reads within 1-2psi of my Omnipower 4-Bar MAP sensor. So it's a good option if your on a budget.

 

[Chipper308]

If that boost reading is accurate you will most likely have issues with a 16g on stock injectors, regardless of fuel pump. However, that gauge doesn't seem accurate to me. The needle seems to sweep too easily and vacuum is too good to be true. Almost 30 in/hg of vacuum is nearly unheard of. So I'd test the gauge with a regulated compressor or swap it with a different gauge.

FWIW, my 7-color Glowshift boost gauge reads within 1-2psi of my Omnipower 4-Bar MAP sensor. So it's a good option if your on a budget.

on idle i sit 20-22 vac. ill go hook it up a compressor right now
ill ###### just find one used on here or something...or like you said look into the glowshift, i got the glowshift wideband right now, so why not match it up
Edit: oh nvm, the girlfriend has the car right now...

 

[98eclipse3493]

Wally 255, grab some Evo 9 560 cc injectors and a 10-12 lb tune and should be a nasty car!

 

[Chipper308]

Wally 255, grab some Evo 9 560 cc injectors and a 10-12 lb tune and should be a nasty car!

no engine managment, ont wanna waste money on safc bcuz ima do link. so injectors are out of the question

 

[98eclipse3493]

I've got a brand new ecmlink v3 lite in a socketed EPROM for sale, but get something to tune with before you start tossing on parts, you need supporting mods if you're going to upgrade stuff. It all goes hand in hand with each other.

 

[Chipper308]

I've got a brand new ecmlink v3 lite in a socketed EPROM for sale, but get something to tune with before you start tossing on parts, you need supporting mods if you're going to upgrade stuff. It all goes hand in hand with each other.

"dont wanna waste money on safc bcuz ima do link. so injectors are out of the question" if i was just throwing parts at it without the supporting mods id have bigger injectors on it burning off my rear bumper, but thanks haha

 

[clipto]

15psi is fine on a t25 and is mostly due to his 3 inch exhaust, mine did the same thing.