What are your opinions on the EVO3 16g?

First i just wanted to get everybodys opinion on the EVO3 16g, any perks or flaws. What times youve gottn with it, or just things i should know about it.

I just bought and installed the EVO3 16g on my car and i use the greddy profec b2 boost controller to controll boost levels. I think im already getting boost creep, what should i set the controller settings to or what can i do to get rid of boost creep.

how big of exhaust do you have and what do you have the boost set at right now?

i have the stock o2 housing into a 3in DP into a 3 in exhaust. Do you want the profec set and set gain settings? low boost is at about 14lbs and hi is a about 18lbs.

your getting boost creep due to the 3" exhaust... port out that O2 housing and that should help a bit... also another nice little mod is porting out your Manifold... might as well while your doin the O2 housing! :p

Boost creep sure isn't rare with the EVO 16g. There are tons of posts about it on dsmtuners, but mainly what they suggest is the 34mm flapper and/or porting. The flapper may solve the problem alone, but together they should definately eliminate boost creep.

damnit... so I"m gonna end up gettin boost creep too? I have a full 3" apex n1 from the turbo back (dp and full exhaust) I was going to get the o2 housing ported but didn't think it would really be necessary. how much does it cost and where can I have it done? also with the flapper mod... where can I get that... or have it done? Thanks guys

Boost Creep is like having a 38mm (small) external wastegate, then trying to run 12psi on a 20g turbo. If you use all of the boost the 16g can put out, it wouldn't be a problem. Only happens when someone wants to run low psi on a big turbo, and waste (wastegate) the rest. I ask why? Once you get 20+psi tuned, there's no reason not to run it. You don't hit full boost every day anyway, and when you DO floor it, you want the extra power. :)

EDIT>> http://www.slowboyracing.com/Mitsubishi%20Turbos/Turbo%20option/34mm%20flapper/34mm%20flapper.html

so you're saying while I wait to get all my other mods on my 16g (which shouldn't take long at all hopefully) I'm gonna have some pretty bad boost creep? cause it's gonna be a day or two maybe even 5 before I get the injectors and afc and pump and all that shit in... is that gonna hurt anything? or just make the car run a little on the shitty side?

Taking that into consideration, you'll never see boost creep until you start making some pulls. Boost creep happens AFTER you hit your boost controller's setting, and are still on the gas. It's just building boost and trying to get rid of it... and you can't get rid of it. You won't be building much boost until you get your other stuff going. I doubt you COULD get boost creep considering you would hit fuel cut first if you tried to race.

outstanding haha.. I'd rather hear that I can't to a damn thing with the car than "you're gonna f**k everything up" thanks for the input Joe

Just keep in mind that larger internal flappers will kill any chance you had of holding higher boost on that turbo (over 20 psi) to redline... Search tuners for a thread title "WG blowing open info" and enter my user name. Plenty of info there on the subject and the details of my findings. Since then several others have done similar tests and come to the same conclusion. Avoid the larger internals like the plague if you plan to run high boost. :)

im gonna keep my flapper on there and just run about 20 lbs on low and 24 on hi, does anybody have the settings on a profec b2 already done so i have something to work off of.

if you get creep adjust the gain up untill you start to see spikes, then back it down a bit. try it in 3 position increments [like 11 > 14]. this is after you figure out where to set the initial set for the desired boost you want. that is how it is supposed to work anyways.
and it was a good point made about running huge turbo's at low boost pressures. i just saw a civic with an incredible by any means setup with a t3/t04 setup and i asked how much boost the guy was running and he was like [and i'm qouting this] "like 8 pounds, but after i get the GReddy e-Manage in i'll be able to run like almost 9" i was like "gee if i strapped that on my ride [and had everything you got done on mine] i could run it over 20 pounds no problem... <lol>"

stupid civic guy's...

he's running 8...and then he's going to 'like almost be running 9'...well what the hell...theres nothing between 8 and 9..so anyway....you guys are saying it's a bad idea to run low boost on a big turbo? or did i totally misunderstand everything?

ummm like psi of boost. and yes there is value in boost between 8 & 9. as in 8.75psi. and in the honduh tuning world that makes a difference of like 10% of your boost with numbers that low. and like it was discussed up higher in this thread, you stand the risk of boost creep running a big turbo at too low because the wastegate can only open so far. don't be a pussy and pump up the boost!

yeah i knew we were talking about psi of boost and obviously there are number in between 8 and 9 such as 8.5 etcedra...but i didn't know you could set your boost between 8 and 9 psi. i know 1 bar is 14.7psi well what would 8.75 psi be?

probably .8 or so. and why not, if it is a MBC it is an analouge screw, right? you just adjust it a little bit.

what all mods would i need to not get boost creep if i have a full 3 inch turbo back exhaust with a evo 16g would i just need to port my o2 and then upgrade my pump injectors and get a afc

Search for boost creep, especially on DSMtuners.com. DO you know that this post is 11 months old?

I'd rather see him add his question here than start yet another thread on boost creep. But the only thing in common with the thread is the 16g, which is almost unrelated to the boost creep :D At any rate, I know I've posted extensively about it in this very forum Mike, try a search using this forum and my user name as search criteria, and see if you dont come up with some helpful information. If while reading one of those threads you have a specific question about some aspect of it, by all means feel free to post the question in that thread. I would rather keep all the boost creep questions in a boost leak thread, as it will make it easier for others like yourself to find more information in future searches. :) Enjoy.

wow this thread confused the shit outta me is this right?

a full 3 inch turbo back system with a 16g will have boost leak?

lets say you get a exturnal waste gate and you have a turbo with a inturnal wate gate, do you just take the vacume line off the inturnal one and put it on the exturnal ? . or do you need to weld the flapper shut or somthing like that?

wow this thread confused the shit outta me is this right?

a full 3 inch turbo back system with a 16g will have boost leak?


LMAO...

you are probably going to get some boost creep. when i mach it out and get up to ~140mph [ping the speed limiter] i'm well above where my boost is set at. and my EGT is over the warn light too. so i've got 2 red warning lights staring at me. stupid creep.

lets say you get a exturnal waste gate and you have a turbo with a inturnal wate gate, do you just take the vacume line off the inturnal one and put it on the exturnal ? . or do you need to weld the flapper shut or somthing like that?

If the external gate is manifold mounted, you weld the flapper shut. If it is O2 housing mounted you remove the flapper and fist it with your die grinder. I have run manifold mounted gates while still retaining the stock flapper and actuator out of laziness, but it still blew open. Wiring it shut stopped boost from dropping, as evidence.