16g?

[screwdgie]

Within the next few months I will be adding a fmic, 550s & safc, and a 16g. I will be doing the 16g first, then injectors, and then fmic. My question is, what is a safe boost level to stick with on the 16g with 450s and 190 pump until I get the injectors? Im thinkin 11-12 psi? Also, what kind of gains could I expect to see at that boost level for now? Mods are in my profile.

Thanks,
Shane

 

[staticbrainwash]

A 16g will inherently flow more than what you had stock. But i doubt there will be noticable gains at that low of boost until you can pop it more with injectors and a fmic.

Which 16g are you putting on? Small, big, or evo3?

 

[PropXprt]

Get a datalogger and turn it up until you start to get knock.

 

[screwdgie]

I'm still debating which 16g to get. My goal is to run a 12.5 on pump gas. Which should be attainable with any style 16g. So I will probably just go with a small 16g since i can find it cheaper, and its supposed to be more efficient at higher boost levels if I decide to run some race gas and crank up the boost, and hopefully wont have as bad boost creep problems. Yea I have a datalogger already =), I was just wondering what anyone else had done in a similar situation.

 

[staticbrainwash]

Honestly, the e316g is just as cheap. And will net you around 50more cfm, with a better top end.

If i get 16g instead of 50trim, i'm going evo3.

In my opinion though, if you want to get the most bang for your buck with a turbo, and truly don't want more than a 16g, get an e3.

 

[screwdgie]

Aren't they notorious for having boost creep problems though? I was having issues with that on the 14b and it was such a pain in the ass. And I'm not switchin to an external gate, I want to keep the car as stock looking as possible for now.

 

[staticbrainwash]

A fmic will KILL stock looking fyi. And as far as i know, there's not much issue with e3's.

But personally, i've never had a problem with a 14b either. Ported or unported. Ported just has better spool and better top end for me.

 

[screwdgie]

Oh i know the fmic is kinda obvious. I am really considering the dejon super sidemount. I may also try a meth kit. My buddy had one on his old talon with a big 16g and was running mid 11s.

 

[xveganxcowboyx]

I can tell you that on a stock fuel system (just rewired stock pump) I hit 100% injector duty cycle by 5,500 rpm at about 15psi. I can get away with revving somewhat higher than that, because I have really low compression, but it's still too high. This is in comparison to being able to run 17psi to red-line on my 14b.

 

[eclipsh]

With a rewired 255 pump & stock injectors I was pushing 16psi without issues on my s16g. You should easily be fine with 14-5psi.

I hope you're adding a 2gMAS with those 550s. It is a super easy swap with the 550s (almost no tuning required) and will open up your engine's breathing.

 

[screwdgie]

Well i just orderd the big16g that forced performance has on sale right now. Got it ported with the 34mm flapper. Hopefully it should be here by the end of the week so I can throw it on this weekend =)

 

[eclipsh]

Couple quick questions to go with that 16g: did you get a 7cm gasket for the turbine inlet?

2nd: do you plan to port the outlet of your 2g mani to match the 7cm inlet of the turbine housing?

I'd plan on it myself since the turbo will be out of the way. Unless you replace the studs on the turbo with bolts you'll end up needing to remove the turbo to get the mani off later and port it out to the 7cm.

Or plan on buying a bigger cast manifold

 

[screwdgie]

Already have a 7cm gasket, already have my 2g manny ported, and I have already replaced the stud with a bolt, so im good to go =)

 

[Echo5Zulu]

Well i just orderd the big16g that forced performance has on sale right now. Got it ported with the 34mm flapper. Hopefully it should be here by the end of the week so I can throw it on this weekend =)

What kind of a deal did you end up with. Im also looking at getting an EVO III 16g. Also let me know what boost, base fuel pressure, ect that you end up with after tuning. Thanks.

 

[chicagoavenger]

I really wish people would stop saying what is safe and what is not safe. Here is a tip get some type of logger/widband and turn up the boost untill YOU see it starting to pull timing or get knock etc etc. Each car is differnt some guys do fine at 17psi on a 16g on stock fuel and other knock at 13psi with upgraded fuel with the same set up. Who knows if you have pisswater 91 like we do or 93. Each car is different and anyone that tells you that you can run X amount of boost is guessing. Only YOU will be able to tell for sure. I would really get your fuel set up first before anything IMO. Why would you base your motor on what other people think?

 

[eclipsh]

I really wish people would stop saying what is safe and what is not safe. Here is a tip get some type of logger/widband and turn up the boost untill YOU see it starting to pull timing or get knock etc etc. Each car is differnt some guys do fine at 17psi on a 16g on stock fuel and other knock at 13psi with upgraded fuel with the same set up. Who knows if you have pisswater 91 like we do or 93. Each car is different and anyone that tells you that you can run X amount of boost is guessing. Only YOU will be able to tell for sure. I would really get your fuel set up first before anything IMO. Why would you base your motor on what other people think?

This entire website is based on personal experiences and opinions. All the how-to's, tuning methods, everything. That is how knowledge is built, by sharing common experiences and adding new knowledge that has been shown to work for the majority. He's just looking for generally accepted "safe" numbers that won't push the limits too far and we're offering them.

As far as fuel first vs turbo first, you're right. It really is just personal preference but should also include analyzing what is the most worn out and in need of replacement. (which I admit we did not do in this thread)

 

[xveganxcowboyx]

I agree with fuel first, in general. Most people do not have the discipline to be conservative with new go fast parts (IE: Keep the boost down on a bigger turbo)

In my case, my 14B took a crap on me and a B16G presented itself at a great price. Who was I to argue?

 

[destruckeclipse]

I run a Big16G on stock injectors, 255 rewired pump, at about 15psi on 91 fuel. I have logged the car on daily driving and abusive moments and have had no issues or red flags on the logs.