400hp on 15psi???? what's wrong

[Florida240sx]

I'm having a war with my car. What is the average HP for a stock ka24de on 15psi have?? I have tomei 555cc, walboro fuel pump(no regulator), stock fpr and I have my SAFC II to +50% in high throttle. My car still leans out. Turned psi down to 12 and stays in the 10's so therefore now I can lean out with the safc. 15psi KA-T t3/t4 turbo estimated hp??? Any ideas????? Going over basics. Check timing again. Just checked plugs and they are good.

[dsylvia]

i dont remember the exact numbers, but i made around 350 at 15 psi

[Florida240sx]

hmmm Fighting with timing right now

[Jookmasta]

are u on stock MAF?

[Florida240sx]

yes.........have a z32 sitting in my room.... at 15psi i hit 73.7% air flowIt's only getting worse now each time I drive.Going to replace fuel filter(wish it is)If not (most likely not) then going to order fuel gauge. Then go from there.

[Thursday]

you realize the stock maf can only meter enough air for like 260 whp. There is no way you can make 400 hp, the ecu cannot determine what part of the map to put you in when it maxes the maf, that is probably why it goes lean. That's dangerous.

[240TweakerNewbee]

[hannibal]

Theres no way your MAF is at 74% with 15psi from a T3/T4. Something's wrong.

[Charlie240sxt]

yea the 240 maf is maxed way out at 15psi from a t3t4

[Jookmasta]

you best install that z32 maf pronto..............the retune will take much much longer than the installation, but u know this. i maxed out the stock maf at around 12 psi on my str8 t3................and just like u, the safc didnt read 100%..............

[nismofly]

you have t3/t04e 50 trim .63 a/r i think?

cory is making around 350 on that turbo around 15

[Florida240sx]

Just replaced fuel filter. Car is at 11psi back to where it was before. Replacign MAFS tomorrow.When I got WOT in any gear car dies completely and then picks up after about 2 seconds and hauls a$$. Even redlining 3rd gear and then shifting to 4th and going WOT the car still dies and then picks back up and goes...Any other ideas beside the MAFS??


Modified by Florida240sx at 12:35 PM 4/15/2006

[Jookmasta]

i had an issue like that back when i was NA..........turned out to be the knock sensor. pray its not that tho, those suckers are like 140 a pop.

[Florida240sx]

My car is reading knock(safc).No codes thrown....

[Kouki_Dorifto]

it still could be a maf problem, replace it with the z32 and retunre would be your best/safest bet

[TheOne]

yeah your MAFS is maxed out i think too.

usually the stock MAFS will do ~200-220, thats probably 8psi from a t3/t04, ~15psi from a t3/t04 should be doing over 300rwhp.

[Structure240sx]

replace you cap, rotor, wires and gap the plugs down like we were saying

[jr_ss]

Here's an Idea....

Listen to everyone and change the damned MAF.

[Florida240sx]

I work for a living so I can't do instantly. I got it sitting beside me right now, it was at my work. Also just booked a dyno appointment for next Saturday. So either they can fix it or I'll have it fixed and then some numbers to post up.