SMIC with big16g?
 

Could you get away with using a SMIC with a big16g without any problems? Or should you get a FMIC?

Re: SMIC with big16g?
 

youl be fine

Re: SMIC with big16g?
 

Oh yea, you will be fine that is for sure. A FMIC wouldn't hurt though...

I just wouldn't be turning up the boost though without something that you can use to tune with like DSMlink or SAFC.

Re: SMIC with big16g?
 

Nice, SO smic but no more then 14psi till i get dsm link?

Re: SMIC with big16g?
 

Anyone know how big the inlet is on the big 16g turbo? 3inches?

Re: SMIC with big16g?
 

Ran 17psi on a 14b with my smic. Worked great even on hot days. Plenty of others have done the same or more. 14 on a bigger, more efficient turbo should be fine.

Re: SMIC with big16g?
 

Pretty sure its about a tiny bit bigger than a 14b

Re: SMIC with big16g?
 

It's strange how a small size difference in the compressor wheel from the 14b to 16g can create so much more horsepower. Talk about easy Horsepower.

Re: SMIC with big16g?
 

That guy who made 340 FWHP at the dyno day was running a SMIC, granted it was a Nissan SMIC that was a little bit better... But it was a SMIC non-the-less!

Re: SMIC with big16g?
 

25% more flow is nothing to sneeze at.

Re: SMIC with big16g?
 

He was also running e85 which kept the temps down.

My 50 trim has a 3 inch inlet. The 16g is about 2 inches I believe. I would also recommend getting a fmic. Hell they can be had for under $200 if you get an ebay kit and then have some minor welding done to guarantee good fitment.

Re: SMIC with big16g?
 

Brian, I want a ride in your car sometime to feel what a 50 trim is suppose to feel like. My car doesn't like to spool up til like 5000 rpm because it hates me :(

Re: SMIC with big16g?
 

If you want to see what a real 50 trim feels like... I can give you a ride... Brians car makes less power than mine and is heavier!

Re: SMIC with big16g?
 

No prob man. I'm not really drivin it much until I fix a couple things, but in a couple weeks she should be bangin nicely :) I've got the boost set to like 10 psi right now so she spools up fine but doesn't pull like a 50 trim should. The fun comes around 20-25psi haha

p.s. anthony doesn't know how much power my car makes because neither do it ;) And my car may be heavier but it looks hella better haha

Re: SMIC with big16g?
 

We know bro...

Re: SMIC with big16g?
 

huh? I musta missed where it was I said that.

btw, I would strongly reccomend getting a fmic setup to start off with. As soon as you throw a 16g on there you're gunna want to really feel it shine in the upper 18s psi and in order to do that you will need more fuel and then imo, a fmic.

Re: SMIC with big16g?
 

Sweet, and to get more fuel i need injectors, adjustable fuel regulator, and dsm link right, or a chip set for 500cc or 600cc injectors? Can't I get away with just putting the 16g in and boosting a little bit more then 14psi? How much can I boost my 14b with a manual boost controller with a stock set up before I get into trouble then?

I pretty much need everything on this list, http://www.dsmtalk.com/forums/showthread.php?t=197035
and it makes no sense to have a 16g turbo that spools slower be set at the same psi as a 14b right?

Re: SMIC with big16g?
 

If you were to just throw on a 16g you probably wont make more power unless you adjust your fuel setup so you can raise up the boost. One thing you need to consider is 14psi on a 14b is much different than 14psi on a gt42r haha. So yea on a 14b you can push the boost up a little more than stock, but with a 16g, 14psi is already somewhat more than stock. lmk if that doesn't makes sence, I just woke up.

You could probably get away without an afpr for now, but I would look into it in the future. You could also probably settle for an safc instead of the spendy dsmlink if you aren't planning on making mad power. I would stay away from chips for the only fact that you can't modify your own tune as far as I know.

Re: SMIC with big16g?
 

How about both cars then lol

Re: SMIC with big16g?
 

First off, you won't need a FPR until you are running multiple fuel pumps.

Second, unless you have some way of tuning there is no point in turning the boost up even a pound or two.

Re: SMIC with big16g?
 

dsms come a little rich from the factory so actually turning up the boost 1 or 2 pounds wouldn't hurt anything.

And anthony, you don't think a fpr is needed running 1000cc injectors? I can't say I've done a ton of searching on the topic of fprs but I've heard from numerous people that it makes tuning a lot easier and a lot smoother even if you just have a single pump.

Re: SMIC with big16g?
 

I can't tell you a defenitive answer on that Brian, so I will just wait for Shane to chime in about it.

Re: SMIC with big16g?
 

I'm running 1 255 fuel pump in my car, it was in there when I bought it. When I got it, it was overrunning the stock fpr, so I put in another stock fpr, and it was overrunning that one within a week. I put in an adjustable fpr, and haven't had a problem with it since. If you're only running a 190 pump you can usually get away with the stock fpr, but a 255 will almost always overrun it.

Re: SMIC with big16g?
 

I almost always run into knock with a 16G or bigger on a stock SMIC if we try to run much boost. 12-14psi usually works okay, but thats no fun. A bigger turbo will heatsoak an intercooler faster, because it flows more air, even though it might put out colder air at the same boost level. 550+cfms at 200 degrees is going to kill the intercooler faster than 405cfms at 205 degrees. A 14B is usually fine up to around 17psi on the stock SMIC on pump gas. On E85 or race gas, it all goes out the window. E85 cools like crazy and acts like you put an air-to-water intercooler on the car with an endless supply of ice. Drag cars that run straight E98 or methanol don't even need to use intercoolers at very high boost. Race gas can be very high octane and octane will greatly reduce the chance of knock from high intake temps. My wife ran 25+psi with 110 octane on the stock 14B with the stock SMIC with no fuel control and went 12s.

A Walbro 255 will usually overrun a stock FPR, but it usually isn't any problem at all to tune around it. I have never had a problem tuning a car with a Walbro 255 and stock FPR with SAFC, DSMLink or an AEM EMS. With 2 fuel pumps it will get too out of control. I run 1600s and a stock FPR on my 1G with EPROM tuning. An adjustable is definately nice and might make things easier to tune, but if you are on a budget at all, it is something that I would skip. With a true speed density setup like an AEM EMS or the way the stock Honda ECU work, then FPR overrun is pretty much a non issue as long as you base + boost isn't too high. I tune Hondas with FPR overrun all the time on Hondata/Crome/Neptune that have their base fuel pressure in the 50-60psi range and it is perfectly fine because of the way their stock ECU works.

It seems like a few year ago someone decided that a DSM couldn't run or tune halfway decent without an aftermarket AFPR. Even though for years before that we didn't have any problems. A lot of people on here know that I am one for running the correct parts and doing things right, but too often I see a fancy AFPR setup on a car that totally missed some other important part that actually makes a difference. A fuel pressure gauge though is one of the most useful gauges for tuning on the dyno though when things are acting wierd.

Bertrenolds5: What MAS do you have? The stock 14B will max out that stock MAS and make anything else you do as far as tuning worthless.

Re: SMIC with big16g?
 

I don't know if I wanna mess with a safc, they always need to be adjusted all the time right? So I will probably just start collecting parts and then buy dsm link possibly.

Re: SMIC with big16g?
 

an safc does not need to be constantly adjusted. I'm sure shane will chime in again considering he's the tuning god. An safc is just like dsmlink, set it once and leave it. The only advantage link has is that you can adjust much more than just fuel and whatnot like an safc. I am not saying don't get dsmlink, I'm just saying if you're on a budget safc would be fine.

Re: SMIC with big16g?
 

DSMLink is way better, but an SAFC doesn't always need to be adjusted. A/Fs, EGTs, knock resistance, whatever will change a little from day to day, weather condition to weather condition, fillup to fillup, but the same will happen with every engine management. A little bit of change is normal and needs to be accounted for in the tuning.

I had a 16G 2G DSM that I built a FMIC for and tuned with an SAFC at Elite about 4 years ago on our dyno recently. Even I was a bit surprised when the WOT A/Fs were still perfectly fine. I cleaned up the part throttle a little bit, since the things we can do on our Dyno Dynamics are leaps and bounds above what we could do at the Dynojet at Elite. I tried tried to push the tune/boost a little more, but it just ended up knocking and I pretty much went back to how it was set before.

A cheap used SAFC and some 550cc injectors work great on most pump gas cars, but DSMLink is much more advanced and lets you run higher boost safely.

Re: SMIC with big16g?
 

I'm gonna save up and someday get dsm link. Until then I will just keep it stock and start aquiring parts.

Re: SMIC with big16g?
 

^spoken like a smart man haha. Take your time and don't blow it up

Re: SMIC with big16g?
 

get your 14b maxed out before you go for a 16g. Get a used evo IX fuel pump ($50 or less), evo 560cc injectors ($150 or less), and a 2G MAS ($50 or less) and you will be in good shape. Install SAFC & MBC, and then bring it to shane for a quick, basic tune.

FMIC and THEN 16g, you will be making GOOD power for cheap. Heck, you could do all of this for under $1k if you shop around.