hmmm HELP!!!

[pnklmnd]

ok so went and logged my car today and am not happy.

First pass i was getting 46 degress of timing...no knock... Confused i retarded the timing all the way..idle the timing was at 11..all the way retarded. Did a p ass on the car. It fell on its face, the motor was revving fine. It just wasnt going anywhere. So im thinking boost leak right? wrong. I did a test and the only leak was a little leak on my BOV flange. So i call a buddy he says rotate the CAS 180* so i do this start the car back up and try and set the timing, the lowest i can get is 11*....

So im stumped, any help? please...

a bit about my setup....

t04b (16g)
255hp pump
rc 550cc injectors
afpr(set to 37psi without the vaccum line hooked up)
SAFC
24x12x3 Fmic
HKS ssqv bov...

any other mods needed lemme know...

 

[94Jettameowpsst]

Sounds like you have a problem with your logger....there is NO way you're getting 46 degrees of timing and not blowing up your motor...period end of story. Thats ridiculous :-O

 

[pnklmnd]

Sounds like you have a problem with your logger....there is NO way you're getting 46 degrees of timing and not blowing up your motor...period end of story. Thats ridiculous :-O

hmmm, well why would the car fall on its face under boost? i checked for boost leaks. None, well a small one on my blow off valve flange.

Im confused here tho. I have the 2g maf on there too.

 

[sYnOnYx]

Fuel cut , that feels like the car falls flat on its face !

get the leak fixed though , its still a leak ! ! and will eliminate one potential problem that could turn into something bigger later on.

try your 1g MAF and see what happens.......

i see you have a BOV.... do you recirculate the air back into the intake like you should ? that would make the car go flat on its face after you shift, or bog , or die out.

what psi are you running ? what are the settings on your SAFC ?

 

[dsm-onster]

ok so went and logged my car today and am not happy.

First pass i was getting 46 degress of timing...no knock... Confused i retarded the timing all the way..idle the timing was at 11..all the way retarded.

"all the way". Do you mean you actually turned you cas all the way retarded so that it won't turn any farther?

A logger reports what the ecu thinks is going on. How does the ecu know that your cas has been retarded? It doesn't. The ecu is telling you that it thinks the timing is at 43*. So it is trying to get you to 43* no matter what your timing really is. Don't muff with the cas without a timing light. And you cannot properly adjust base timing unless you unplug the logger from the diagnostics port and grounding the timing wire behind the battery.

Was this pull you did before you retarded the timing at wide open throttle?

Did a p ass on the car. It fell on its face, the motor was revving fine. It just wasnt going anywhere. So im thinking boost leak right? wrong. I did a test and the only leak was a little leak on my BOV flange.

If you did a wide open throttle pull after you turned the cas all the way retarded, this would explain why the car fell on its face. You ecu doesn't know you've retarded yor timing so much. Normally, when you accelerate, the timing map is programmed with a dip and in it and slowly feeds you more timing so as to determine if you're going to get knock or not. If you don't get knock it will advance the timing steadily until it senses it. In your case, that dip is probably now so retarded (because you retarded your cas so much) that it is causing the engine to stumble at that dip point.

So i call a buddy he says rotate the CAS 180* so i do this start the car back up and try and set the timing, the lowest i can get is 11*....

Put your cas back the original way.

So im stumped, any help? please...

a bit about my setup....

t04b (16g)
255hp pump
rc 550cc injectors
afpr(set to 37psi without the vaccum line hooked up)
SAFC
24x12x3 Fmic
HKS ssqv bov...

any other mods needed lemme know...

What the hell is a "t04b (16g)"?

You're part throttle timing will be really advanced with a piggly back and larger injectors because you're fooling the ecu to think that less air is entering the engine than there really is. It is causing the ecu to function on a more aggresive timing map because it is sensing less load (airflow).

 

[pnklmnd]

"all the way". Do you mean you actually turned you cas all the way retarded so that it won't turn any farther?

A logger reports what the ecu thinks is going on. How does the ecu know that your cas has been retarded? It doesn't. The ecu is telling you that it thinks the timing is at 43*. So it is trying to get you to 43* no matter what your timing really is. Don't muff with the cas without a timing light. And you cannot properly adjust base timing unless you unplug the logger from the diagnostics port and grounding the timing wire behind the battery.

Was this pull you did before you retarded the timing at wide open throttle?


If you did a wide open throttle pull after you turned the cas all the way retarded, this would explain why the car fell on its face. You ecu doesn't know you've retarded yor timing so much. Normally, when you accelerate, the timing map is programmed with a dip and in it and slowly feeds you more timing so as to determine if you're going to get knock or not. If you don't get knock it will advance the timing steadily until it senses it. In your case, that dip is probably now so retarded (because you retarded your cas so much) that it is causing the engine to stumble at that dip point.


Put your cas back the original way.



What the hell is a "t04b (16g)"?

You're part throttle timing will be really advanced with a piggly back and larger injectors because you're fooling the ecu to think that less air is entering the engine than there really is. It is causing the ecu to function on a more aggresive timing map because it is sensing less load (airflow).

The car fell on its face before and after i retarded the timing. It didnt fall on its face at 12psi, but it wasnt pulling like it should. But on 15psi the boost started to come on then fell on its face. It isnt fuel cut, i have fuel. I am adding +5 atleast across the board. I have the oldschool AFC tho, not the new "blue" one. Im going to be getting a DSMlnik this coming week. Im going to be re-timing the car. I know the proper way to do it with the jumper cable and ground plug.

My HKS isnt recirced, but the way i was doing my pulls it doesnt matter. I start logging from the bottom of 3rd.

I dont see how the maf would be causing a problem.

a t04b 16g is a turbo that "bullseyepower" makes. Its basically a 16g in a t04b housing. Flows 38lb/min.

The BOV flange leak will be fixed soon tho. I have to weld it when i have a day off, and get a new "c-clip". It is Vent to atmospere right now, but im going to get the re-circ attatchment for it ASAP.

 

[dsm-onster]

The car fell on its face before and after i retarded the timing. It didnt fall on its face at 12psi, but it wasnt pulling like it should. But on 15psi the boost started to come on then fell on its face.

It isnt fuel cut, i have fuel.

Fuel cut has nothing to do with not having enough fuel. It is determined by how much air the ecu is seein coming into the engine. If you have your base settings for your 550s set correctly in your SAFC then this probably isn't fuel cut. But not having enough fuel does not lead to fuel cut.

I am adding +5 atleast across the board. I have the oldschool AFC tho, not the new "blue" one. Im going to be getting a DSMlnik this coming week. Im going to be re-timing the car. I know the proper way to do it with the jumper cable and ground plug.

Ok what is your base settings for your SAFC? If it is +5 percent then it is DEFINATELY fuel cut. It doesn't matter how big your injectors are nor how much your fuel pump flows, if your ecu is not seeing less air than it normally would stock (i.e. you compensate properly for larger injectors with a piggy back), then the ecu could activate fuel cut at boost levels as low as 15psi.

My HKS isnt recirced, but the way i was doing my pulls it doesnt matter. I start logging from the bottom of 3rd.

Recirculate your bov. research this...

I dont see how the maf would be causing a problem.

I didn't say maf, I said cas

a t04b 16g is a turbo that "bullseyepower" makes. Its basically a 16g in a t04b housing. Flows 38lb/min.

What 16g wheel is it? EVO3 16g, small 16g, or big 16g

The BOV flange leak will be fixed soon tho. I have to weld it when i have a day off, and get a new "c-clip". It is Vent to atmospere right now, but im going to get the re-circ attatchment for it ASAP.

How much psi did you run your boost leak test?

 

[sYnOnYx]

i said MAF beacuse he might be pulling in too much air , and not compensating it right on the AFC. causing fuel cut which = THE CAR FALLING FLAT ON ITS FACE !!!

man, do some fuel cut research using the " search " feature on the forum ... beacuse im sure thats what it is.

also , how high does your karman reading go ? should be 54 around idle. but pulling is diffrent