Airflow Limitations

[Enes]

well here is my dilema. I can't get more than 34# of air thru my system.

I don't know if it is my IC piping 2 1/4 or the throtle body or the turbo.

There is no boost leaks. and full boost kicks in at about 4100 on a 50 trim.

any suggestions?

-E

attached 3rd gear and 4th gear pull... as you can see no knock

[CDeutsch]

What's your "full boost" at?

Oh, and do you have an internal or external wastegate? Are you sure it's not leaking?

[Enes]

here is the log file..

download the http://www.dsmlink.com/dsmx.exe software...

i wish i could log boost as well, i think i'd need to get a special gauge to let me do that.. i will look into it..

but full 20 psi i get at about 4100 i beleive.

I have external gate, and it is leaking very very litle by the gasket before the wg and its routed back into the dowpipe.

log file atached..

[SlowWhite]

enes give us a list of your complete Set up. That'll help if there's any bottle necks in the system.

[JET]

Something does sound off, my 50 trim spooled 400 rpm sooner last year.

[Enes]

750cc fic
dsmlink
50trim PTE
gredy large fmic
2 1/4 ic piping
xtremem mbc

stock intake mani, stock throtl ebody
all egr stuff is removed
stock head except apr studs

ported manifold
external 38mm wg routed back into 2 1/2 dp
test pipe
3" catback


egt's get to about 845 just because i'm running a bit rich but i rather have it a bit safer until i get onto a dyno..

-E

[CDeutsch]

Originally posted by Enes@Sep 3 2004, 02:11 PM
I have external gate, and it is leaking very very litle by the gasket before the wg  and its routed back into the dowpipe.

If you can feel it leak at idle, it's probably leaking a lot more at WOT. If you're using the gasket that came with it you might want to try getting rid of it and using RTV or just nothing.

Also did you install the valve seat ring with the wastegate? It looks like you did because mine spooled even worse then that without it.

Did you hook up the MBC to the lower nipple on the wastegate and leave the top open?

On the other hand if you're hitting 20 psi something else may be your problem.

[CDeutsch]

Never mind.

[MustGoFaster]

What are you running for an intake pipe? Are you running your new ic pipes already your is it the same as when I saw when we put your tranny in?

[Enes]

its just the filter right on the turbo.

and the wg its only connected on the lower nipple not the top one
the seat is in there..

-E