16g just installed - =(

[GrnZ]

I recently bought a big 16g from a local dsmer for cheap. When i removed the turbo from his car , i found quite a few big cracks in the exhaust housing.Its been ported to the max, and its a 7cm housing. I had a 14b housing on hand which is 6cm so i swapped the exhaust housings and installed it on my 2g. Im not impressed at all with this new setup , and this is coming from a stock t25 turbo on the car. Is the 14b exhaust housing killing me that much? Running it 17psi , car has aem uego,safc2 tuned. Whats going on , i thought it was supposed to be a night and day differnce after this install? Have no boost leaks , or anything, everything is good, only thing i can think is that its the 14b exhaust housing.Any ideas or is this it?

 

[turboglenn]

Is there something wrong with it or is it acting weird? Or, are you just not happy with the power? If it's the second one, get out the logger and start looking for what may be going on with the timing to start with and look for any other odd behavior from other sensors and stuff.

I doubt teh 14b housing is hurting you much at all. But if you're on a stock fuel system you could be running lean as hell and losing a ton of power at the same time. Leaner isn't always "meaner" as you will often hear from older less-educated nascar enthusiasts

 

[AWD_DSM08]

You should be rreally happy with the 16g sounds like theres something else needing looked at

 

[GrnZ]

Nothing is wrong im just not happy with the power.The car is tuned very good,like i said i have an AEM Uego in the car and safc2. I mean it has more power than the t25 , but im feeling it wasnt worth the hassle of putting this thing on , and shouldve just threw a 60trim on it.

 

[turboglenn]

Hmmm..something has to be wrong, my 16g was a very fun turbo to drive, pulled hard from 3500 all the way to redline for me.

I've been in many 16g cars both front and all wheel drive and they were all fairly quick cars IMO.

Have you tried logging runs to see how much timing you're getting or anythign like that???

 

[AWD_DSM08]

There has to be more to look at. The 16g should feel alot better than the t-25 i had full boost at 3200 and it pulled like a train

 

[Apeximprt2nr]

Something isn't right. I'm running my 16g with a 14b housing and it pulls. Go log a run. I bet its not tuned right. What's your fuel setup?

 

[AWD_DSM08]

as apexi said what is the complete setup you are running

 

[GrnZ]

Car has full 3" turbo-back, Hahn Racecraft o2 eliminator downpipe setup, Dejon intake pipe w/ K&N, Ams mbc ,SAFC2 ,AEM UEGO Wideband, stock injectors and pump. Car isnt hitting fuel cut as it sits so i havent put in my evo 560cc injectors in it. Thats all the mods the car has.

 

[97 4G63]

Car has full 3" turbo-back, Hahn Racecraft o2 eliminator downpipe setup, Dejon intake pipe w/ K&N, Ams mbc ,SAFC2 ,AEM UEGO Wideband, stock injectors and pump. Car isnt hitting fuel cut as it sits so i havent put in my evo 560cc injectors in it. Thats all the mods the car has.

Ok there's your problem ( stock injectors and fuel pump)

 

[boostedtsi0069]

Car has full 3" turbo-back, Hahn Racecraft o2 eliminator downpipe setup, Dejon intake pipe w/ K&N, Ams mbc ,SAFC2 ,AEM UEGO Wideband, stock injectors and pump. Car isnt hitting fuel cut as it sits so i havent put in my evo 560cc injectors in it. Thats all the mods the car has.

Install the evo 560cc injectors. a AFR, and a walbro 255 fuel pump and get it tuned. I had the same problem and i was running lean with the stock fuel components, as soon as i got all that in it was LITERALLY a night and day experience.

 

[GrnZ]

I have a AEM Uego wideband in the car , i know where my fuel ratio is at !!! Its not running too lean or rich.

 

[boostedtsi0069]

I have a AEM Uego wideband in the car , i know where my fuel ratio is at !!! Its not running too lean or rich.

Trust me, and everyone in here...Your running lean, theres no way with that setup your runnig right. That turbo produces more power where in return you need more gas, your stock fuel pump or injectors cannot deliver guaranteed.

 

[GrnZ]

So are you telling me my wideband is not correct?

 

[TSInsane]

What is your wide band telling you.... even better, what voltage is it showing? How much boost are you running?

 

[boostedtsi0069]

So are you telling me my wideband is not correct?

It shouldnt be and usually there not, but ill bet my life that your problem is your fuel components and thats coming from personal experience. Get them installed and retune your car and you'll see. you'll be so happy with power.

 

[GrnZ]

At full boost it ranges between 10.7-11.5 . Not sure of voltage , i have the power coming from fuse in fuse box. Car is running at 17psi.

 

[TSInsane]

I agree with boostedtsi.... At 17 psi your current set up is not sufficient. I have a walbro 255, aeromotive afpr, 550cc RC's, and a good tune and I won't turn my boost up over 19psi on 93 octane. You will see a monster difference when you install your upgraded fuel parts. You really should get a egt gauge as well for your engines sake. Wideband 02 sensors are great if you know the actual voltage you are running. .880-.890 volts is about as lean as you want to get on a 1G if your knock count is not too high.

 

[JusMX141]

Do you have a logger?

You're probably getting too much knock which is pulling the timing and making it feel like you're pulling a U-Haul. Sure the o2 may seem good, but the ECU is trying to keep it that way so you don't burn holes in your pistons from too much boost and not enough fuel.

There are times when 13psi can be faster than 18psi....this is one example.

 

[GrnZ]

Ok thanks guys i will have to get myself a 255 pump and install my injectors , ill post my results. Hopefully ill be happy. Also is the 14b exhaust housing hurting me that much?

 

[dylan702110988]

WTF holy mother of Jesus...

17psi on the stock fuel system!?!?!

I would keep the PSI low until you get fuel, 13-15psi

I'm running 15psi on my e316g and hitting fuel cut when it shifts (automatic) it backfires like a mofo, and takes a minute to shift but once it does I'm gone......but it should help when i re-wire

you don't want to push your car like that...keep it low (i say around 13psi)...and yes i can almost guarantee your running lean

 

[JusMX141]

is the 14b exhaust housing hurting me that much?

I wouldn't think it would make a noticeable difference at low boost levels....especially if your manifold and the turbine housing are both 6cm2 for the 14B. If you had the 14B housing bolted up to a 7cm2 manifold collector or vice versa, it may cause some unwanted turbulence.

 

[fatherbubble]

Here this is the problem u got a flow rating of like 400 or so an a turbo that tring to pull 500 in it. Thats like trying to suck a golf pall there a garden hose it's not going to work.

 

[chodaboy3545]

Do you have a logger?

that is the most important question of all. A logger is a must. That 16g should be a beast! I'm running 25lbs and love the power.

 

[turboking15]

also for what your doing a walbro 190 will be just fine then you dont have to get an afpr right away.