How much airflow is your t25 moving? Mines only pushing 20lb/min Garret says 26?!?

[truwarrior]

My logs acorrding to DSMLINK indicate I'm pushing around a max of 20lb/min. I have an unhacked MAF. Anyone else pushing more? My exhaust is pretty well freed up...

 

[kpt4321]

Yes, people are pushing more. You're not maxing it out yet, no way.

 

[philipkrotch]

do you mean your pushin 20lbs...as in psi??? if so, id say that turbo has been maxed out about 6 psi ago. maybe im not understanding you correctly though.

 

[RuBiCaNT5X]

My logs acorrding to DSMLINK indicate I'm pushing around a max of 20lb/min. I have an unhacked MAF. Anyone else pushing more? My exhaust is pretty well freed up...

What's your boost set at and are you still on the stock SMIC?

 

[Violater101]

do you mean your pushin 20lbs...as in psi??? if so, id say that turbo has been maxed out about 6 psi ago. maybe im not understanding you correctly though.

No, he is talking about airflow which is lbs/min....there is also another way its measured, but I forget the exact term right now.

 

[philipkrotch]

No, he is talking about airflow which is lbs/min....there is also another way its measured, but I forget the exact term right now.

oh ok...i was just makin sure....didnt want his turbo to have a nucleic meltdown or anything..

 

[Syndicate13]

No, he is talking about airflow which is lbs/min....there is also another way its measured, but I forget the exact term right now.

It is also referred to as CFM, or cubic feet per minute. Also, just curious, why do you have DSMlink and only a T25? I wouldn't be worried about airflow on that turbo, I'd be more interested in velocity, the speed at which it hit the trash can.

 

[Violater101]

You quoted me, but I think this was meant for TruWarrior in regards to the T25??

 

[CanadianTSi]

I'm seeing a little over 22lbs/min I think with the stock SMIC and unported Manifold.

Also I saw 1375hz the other night at the track.

 

[nanokpsi]

It is also referred to as CFM, or cubic feet per minute. Also, just curious, why do you have DSMlink and only a T25? I wouldn't be worried about airflow on that turbo, I'd be more interested in velocity, the speed at which it hit the trash can.

CFM is a measure of volume. Lb/min is a neasure of mass. It can also be configerd as g/sec or g/rev.

As far as seeing 20 lb/min. I think most people see 20-24 lb/min before they get rid of it. Are you any any kind of altitude as that will have an adverse effect on airflow.

 

[Syndicate13]

CFM is a measure of volume. Lb/min is a neasure of mass. It can also be configerd as g/sec or g/rev.

As far as seeing 20 lb/min. I think most people see 20-24 lb/min before they get rid of it. Are you any any kind of altitude as that will have an adverse effect on airflow.

If you ever see a compressor wheel rated it's rated either at lb/min such as the garrett wheeled turbos i.e. AGP RS49=49 lb/min. The other way to rate a compressor's airflow is by CFM such as the Mitsu turbos, i.e. 14b=405 CFM. Those are the only two ways I've ever seen a compressor rated, the g/sec or g/rev would be more applicable for rating the motor, but not the turbo. On a larger motor the same turbo would accelerate up to MAX airflow sooner but still not be able to exceed that MAX airflow. Also Violater, yes, the second part of my reply was directed towards TruWarrior.

 

[Warhead2k3]

With my fmic and t-25, pocketlogger is showing nearly 26.

 

[98spydert]

I why do you have DSMlink and only a T25? I

Probably the same reason I have 650s installed with my T-25 and the E316G is sitting on the floor; he's planning ahead. Smartest way to go imho

 

[RuBiCaNT5X]

Probably the same reason I have 650s installed with my T-25 and the E316G is sitting on the floor; he's planning ahead. Smartest way to go imho

Word on that... DSMLink is by far the best mod for the DSM...

 

[Skunked tsi]

Word on that... DSMLink is by far the best mod for the DSM...

I second that!

 

[nanokpsi]

If you ever see a compressor wheel rated it's rated either at lb/min such as the garrett wheeled turbos i.e. AGP RS49=49 lb/min. The other way to rate a compressor's airflow is by CFM such as the Mitsu turbos, i.e. 14b=405 CFM. Those are the only two ways I've ever seen a compressor rated, the g/sec or g/rev would be more applicable for rating the motor, but not the turbo. On a larger motor the same turbo would accelerate up to MAX airflow sooner but still not be able to exceed that MAX airflow. Also Violater, yes, the second part of my reply was directed towards TruWarrior.

All the measurements do the same thing........except cfm is a measure of volume. CFM is worthless IMHO as it would be different with pressure and temperatre. A lb of air is a pound of air no matter what.

lb/min is the same thing as g/sec....just that there as 454g/lb and 60 sec/min.....g/rev is more motor related obviosly.

He was stating the amount of air measered by the mas that is going through the motor and comparing that to the flow rating on the t25 compressor map (I presume). If you think you can'y exceed the MAX FLOW of a turbo, you are sadly mistaken. You will be out of the efficiency islands but it can and has been done. Just take a look at the 50 trim, which is a 49 lb/min compressor. People have made 500+whp with a 50 trim which would take in the neighborhood of 55-56 lb/min of flow from the compressor. Also, untill you start to approach the limits of the compressor, you don't gain anything by switching to a larger compressor wheel. Most people don't understand that.

 

[nanokpsi]

.....and yes. DSMLink is one of the best mods a dsm can do. Soon more 1gers will be able to verify this as well when they relese the 1g version.

 

[truwarrior]

I'm just trying to make sure my turbo is in good health and flowing what it's suppose too, I can't really free my intake up much. I upgraded to a dave brode uipc, 1g bov, apexi intake, enjen intake pipe.

How much would a larger smic increase airflow?

DSMLink helps to even tune the t25. I advanced the timing abit for more midrange no knock

 

[kpt4321]

What about exhaust? What do you have?

 

[RuBiCaNT5X]

3 ways I know of to increase your lbs/min flow... Upgrade intercooler, lean out your a/f some more (if it's running rich) or add more boost...

 

[1fast97gsx]

my measured airflow is 19.5 ... this is on a scm61 @20 psi and 780 injectors tuned roughly at -40. You can't rely on airflow for anything once you have a few mods.

 

[RuBiCaNT5X]

my measured airflow is 19.5 ... this is on a scm61 @20 psi and 780 injectors tuned roughly at -40. You can't rely on airflow for anything once you have a few mods.

If you have the GM MAF. you won't read much more than that even though it's flowing more...

 

[1fast97gsx]

yea but I have a stock 2g Mas .. screw is backed out a tad but that's it.

 

[ItsStockOfficer]

I'm seeing a little over 22lbs/min I think with the stock SMIC and unported Manifold.

Also I saw 1375hz the other night at the track.

Heh, I can more then double your Htz.

 

[CanadianTSi]

Heh, I can more then double your Htz.

Ya my friend with his 50 trim can to, which would make sence because your making more than double the HP I am