how to make a 16g spool faster

[DSMmonster123]

like the title says how can i get a big 16g to spool faster? i just installed one along with a full 3" exhaust. the power it incredible! 280hp or so with very little tuning theres more to be had only running 20psi and getting 29lb/min so somethings choking it. however its a DD and now on the low end it feel almost like my t25 before i replaced the stock bov. any tuning tips for a faster spool? was thinking tubular manifold, i'd like to build one regardless but will that do the trick? intake maybe?

so far: dsmlink, big 16g, slightly ported 2g manifold (step removed), 3in exhaust and tubular o2 housing, supporting fuel mods, ebay bov and upic.

i'll give it a month-ish of playing with it but at this point i may just rebuild my 14b and stick that in there but i hate to give up that top end power. any ideas?

 

[SBstar]

I almost hate to say it, but it sounds like maybe turbo cars aren't for you? A 16g spools pretty darn quick and it's hard to find anything in the comparable power market that spools as fast. Obviously a 14b or T25 will spool slightly quicker, but as you said you'll be losing any/all top-end. Most of the above suggestions are good as well. I would check that "ebay" bov, perhaps it's a leak spot, also make sure it's recirculated. Fix any/all boost leaks and pre-turbine exhaust leaks. A 14b with a 7cm hotside will spool faster and keep a bit of top-end (currently what I'm running btw) but still won't net you 16g type power. Not alot people complain about turbo lag on an evo III 16g. Perhaps you should look into a V8 option!

 

[DSMmonster123]

i made a DIY intake tube. i've been running the stock 2g rubber intake, just cut out the ribbs and put in a 2.5in hard pipe. i'm getting on boost much quicker/easier and hitting 32lb/min. now. i guess it's just starved for air. i'll weld up a good 3" intake tube and see if that makes it even better. not so pissed at it now .

 

[GsXdSmKingGsX]

The Evo 3 16G already hits hard as is, get a tune and some cams.

Never seen someone wanting to rip the teeth right off third gear so badly.

THIS.... These turbos already hit hard.

 

[Gysgt Guy]

3500 is not bad at all! I think you should downgrade and sell me your 16g

 

[DSMmonster123]

much better with a new intake pipe. i'm seeing 5-6psi in low throttle acceleration, where as before i was only getting 1in of vac- 0 psi. much better driveability now, no wot pulls with it yet but i bet i'm getting closer to the max flow rate.

 

[e85_4g63]

Do you auto X the car? Why are you interested in only who fast the turbo spools and not how much power your making? Just wondering, most people want power, lag is just something to deal with.

 

[tips000]

i made a DIY intake tube. i've been running the stock 2g rubber intake, just cut out the ribbs and put in a 2.5in hard pipe. i'm getting on boost much quicker/easier and hitting 32lb/min. now. i guess it's just starved for air. i'll weld up a good 3" intake tube and see if that makes it even better. not so pissed at it now .

what did you make it out of and how? pictures?

 

[T-mun]

Do you auto X the car? Why are you interested in only who fast the turbo spools and not how much power your making? Just wondering, most people want power, lag is just something to deal with.

Personal preference, some people want top end power, some wants low end response.

 

[936DSMboy]

try heat wrapping the downpipe or manifold and adding a turbo blanket and maybe adding some heat reflector tape to the intercooler piping that is close to some hot pipes.

 

[Gysgt Guy]

try heat wrapping the downpipe or manifold and adding a turbo blanket and maybe adding some heat reflector tape to the intercooler piping that is close to some hot pipes.

Now I am probably wrong...but I swear I've heard somewhere that your not supposed to heat wrap the exhaust manifold on turbo cars??

 

[motozachl]

Now I am probably wrong...but I swear I've heard somewhere that your not supposed to heat wrap the exhaust manifold on turbo cars??

Because it traps in water. But if your car doesn't see rain etc its fine

 

[pj91gsx]

like the title says how can i get a big 16g to spool faster? i just installed one along with a full 3" exhaust. the power it incredible! 280hp or so with very little tuning theres more to be had only running 20psi and getting 29lb/min so somethings choking it.

Boost leaks or pre-turbo exhaust leaks. Your a new member so its likely you have not gotten into boost leak testing. I spent about 1 month fixing my boost leaks on my daily driver. It usually works out that when your fix a few boost leaks another will appear, until you knock them all out. I went threw about 10 tests. spray fuel injector seals, throttle body, intercooler pipes. If you have a side mount its a good idea to take it off and check for corrosion around where the intercooler pipe connects, which it will corrode a hole in. check vaccum lines and break booster, jpipe etc. A friend of mine did not have a jpipe gasket or bov gasket and was leaking really bad, but he could still make 23 psi on a 14b.

 

[98gstblackwidow]

like the title says how can i get a big 16g to spool faster? i just installed one along with a full 3" exhaust. the power it incredible! 280hp or so with very little tuning theres more to be had only running 20psi and getting 29lb/min so somethings choking it. however its a DD and now on the low end it feel almost like my t25 before i replaced the stock bov. any tuning tips for a faster spool? was thinking tubular manifold, i'd like to build one regardless but will that do the trick? intake maybe?

so far: dsmlink, big 16g, slightly ported 2g manifold (step removed), 3in exhaust and tubular o2 housing, supporting fuel mods, ebay bov and upic.

Check your stock manifold for cracks, they are bad for that and it will hurt your spool time. Also do what some people suggested and buy a 6cm2 hotside and port/polish it. Also always check for boost/vacuum leaks.
I ran an mhi b16g with ported 2g manifold, ported 14b hotside, sbr o2 dump, full 3" exhaust and an injen intake and was hitting stock boost (12lbs) by 2700 rpm. All of this on a stock motor and stock tune.

Just my .02 cents

 

[UofACATS]

This is your best answer by far.

Trade your Big 16G for a Small 16G

Exactly what my advice was going to be. It will be a substantial improvement in spool.

 

[tunermt]

timing won't help spool but it can help make more power in in low load before you start making much boost (seems to be the area you are complaining about). Sounds like with the new intake set up your well on your way to perfecting the 16g set up though. Like everyone else has said build a boost leak tester and make sure NOTHING is leaking

 

[knochgoon24]

Here's a few tips I have for you:

-Shim the wastegate out with a few washers between the bracket and the compressor housing. Since you're running 20psi, it might help keep it closed for longer by adding preload. If it causes boost spikes, remove the washers.

-Timing can have and affect on spool. So does your AFR during spool. Newer Evo's (I know the 8, 9, and 10 have it) have a "lean spool" thing from factory. It runs the car a little leaner under spool up. The extra heat can help spool the turbo. Try leaning out your tune in the cells you hit when you spool.

 

[DSMmonster123]

wastegate is shimmed + an extra spring which did help a bit with spool.
no boost leaks trust me that was first on the list.
with the new 3in. intake pipe i'm flowing 36lb/min. and making somewhere around 310hp, the link has a very shaky hp estimate no matter how much i smooth it.
I'd like to run more boost just haven't had the time to tune it in yet plus I need a better boost guage that goes past 20, shooting for 23-25ish.

I do like the idea of 14lbs at 2700 rpm. so I think i'll weld up my cracked 6cm2 housing and stick that on there next. I also noticed that the 14b turbine wheel is much lighter than the 16g despite everyone saying they are the same. the 16g fins are much thicker guage, I think the lighter wheel will help spool as well, but idk how much. I hope the 6cm2 housing fits over the 16g wheel i'd rather not rebuild the turbo again just yet.

love the top end power! But for a daily driver low end boost is much better/fun. IMO.

 

[JusMX141]

I also noticed that the 14b turbine wheel is much lighter than the 16g despite everyone saying they are the same.

They are the same. The Evo III 16G has a turbine with a different type of Inconel...that's the only difference.