okay.. so I did my dyno and found out some new things..
unfortunately he didnt have a printer so theres no graph i can post.
I did 2 pulls.

1st= 228hp 230 lb/ft this was running with the fmu and it was pig rich
2nd= 243hp 265 lb/ft this was without the fmu and the air/fuel was pretty perfect

however, running the 2.62 I was only getting 6psi and the guy said the pulley was slipping. so I have yet to go back.. once my fpr and new injectors come in then it should be good.

also he said with most boosted cars, timing should be adjusted.. so I was wondering if theres any way to adjust our timing other than with a jwt?

 

How much boost should you have with a 2.62? With your setup, you shouldnt have to worry about pulling timing.

 

u should get the emanage ultimate.....where did u dyno at???

 

i went to dsm. also as far as the 2.62 i believe it should be at about 14 psi?? something like that.. and also my tach is off by 500rpm or so...once I hit 300 ill be happy..

 

It should peak around 13, 14psi if you get lucky. Your numbers are really low for that pulley size. You should be well over 300whp.

A graph would be a very helpful thing for us to help you see what's going on. Next time you dyno, bring a digicam with you and snap a pic of the screen.

You ran without your FMU?!?!? What if the belt didn't slip that run and you boosted at full 13psi boost... What was the a/f? 12.5 across the board?

 

The 2.62 should put out more then 13psi, Im running the 2.87 and hitting close to if not right at 13psi..

 

i dont have a graph but it climbed through the rpm range very nicely. no spikes. all the way up to its peak at 5k then it just dropped off. also idk what was wrong but it did constant 6psi.. any ideas? a/f w/fmu was about 7 w/o fmu was about 12.8

 

You should be pulling timing via emanage with a pulley that size. Should be seeing about 15psi with the 2.62. I have a 2.87 and seeing about 13ish to 14 on a warm day.

 

Did you mean 2.62?

 

right...typo...fixed

 

Out of curiousity, do you know with the 2.62, what RPM the blower is being overspun at?

 

with a v2 blower and 2.62 around 58XX the blower is overspun.

 

Didnt know that pulley is at that boost, if its going in the double digits then you should be worrying about timing.

 

My tach is off by 500rpm as well, I think its just due to where its pulling its signal from.

 

Not bad numbers for the ACTUAL boost level you were running (6 psi on VQ30DE) but obviously you have some significant problems to work out to get to what the setup as a whole should be running.

 

any dieas nealoc? still cant figure out where im losing that boost... would i be losing it through the egr tube? thats the only place i can think of.. also is emanage the only way to do timing? and how would I do the timing?

 

If the EGR tube were not hooked up and sealed to your IM properly, sure you could lose boost there. Also could be any of your induction piping, silicone couplers being torn/loose, etc, or just severe belt slippage. You need to hook up a vacuum pressure tester and check it out. Search for this, I know I30tMikeD did a writeup on how he made his.

Emanage or emanage ultimate would be the main way to adjust timing.

 

also how can i cure belt slippage, and what reason other then preventing detonation are there to adjust timing?

 

Just tighten it, if the tensioner will not move anymore and is at its limit then your going to have to swap belts.

 

E-manage is a very versatile piggyback that will allow for fuel management and timing adjustment. However, how much timing to actually pull involves a donkey cart full of dynamic paramaters. I personally opted for J&S whose knock reading capability allows for a conservative tune or a tune on the ragged edge.

What are you doing about fuel management?



.

 

Exactly. Use the EU in conjunction with the J & S. Leave all timing responsibilities up to the J & S and use EU for fuel adjustments. Expensive set up but can't be cheap with boost....

 

i think that your dyno is off because most people with superchargers are not dynoing that much torque.

 

for my fuel management I dont have anything electronic yet, just going with sard fpr, 370cc injectors, and I have the trex fuel pump. the dyno seemd pretty correct. we did multiple pulls and they were consistent

 

hey trait, didnt u go to bsm where they have a mustang dyno???