hi all

i got a chance to dyno my car yesterday.

here are the charts

http://fastforward.lchu.net/church%20data/FSC-FWT.JPG
torque and hp

http://fastforward.lchu.net/church%20data/FSC-FWT2.JPG
torque and a/f

http://fastforward.lchu.net/church%20data/FSC-VBP.JPG
boost

the green line is 2nd gear pull

the red line is 3rd gear pull

numbers are from 4000 rpm and up becasue the trans will keep down shifting or something like that.

it was also a chassis dyno. they took my wheels off to do the dyno.
what would be the typical difference between a chassis dyno and a wheel dyno.

i a little worried about my a/f in the top end i start to lean out.
they were speculating that my fuel injectors were maxing out. is this the case or do i need to throw the 8:1 fuel disk in.

give me some advice guys i want to be in the 300hp range.
thanks Frank

 

Looks like they cut you short on a couple hundred RPMs.

11.4 psi?!?! What pulley are you running?

 

3.125 pulley

what sould they have started the dyno at. cause it was wierd there were a few pulls where my peak boost was like 5 psi like it wasn't boosting but the rpms went up. it was kind of weird.

 

I think Kev means up top. The charts stop at 61XX. They should chart to the redline.

 

ohhhhhhh i see. awwwww d@mn it
oh well

 

That would happen if they didn't have the throttle wide open. Not sure why they would do a partial throttle run, though, except maybe for prep type stuff.

 

Redline is 6650, so have them take it all the way up.

Do you have the graphs of the 5 psi runs? If they were going WOT, were the hp/tq numbers the same?

 

nope didn't get the graphs on those partial runs.

i think those were the 2nd gear pulls i think when he would gas it to much it would down **** into 1st or something to that effect.

should i worry about my a/f ratio though????

 

So it all means this:

264.6 max HP
233.5 ft/lbs max torque

AFR 12.9

11 lbs psi


impressive...no we need to take it to the track again...

any luck on the S-AFC?

 

Looks like everyone has been running lean recently.

8:1 disc works better with the 3.125 pulley.

 

do i have to worry about locking up my fuel injectors????? imgetting close to 90 psi on the 6:1 fuel disk.

 

You should be getting around 83.5 psi at peak boost with 6:1. Some people worry about their pressure going above 90 they have a right to be. 8:1 will increase pressure to about 105.5 psi, so you may feel like you're in a lose-lose situation.

1) run lean
OR
2) run a high amount of pressure

Both options can damage things.

 

Time for 370cc/min injectors.

 

OK...

3) spend more money

 

thats what a couple of the guys there were saying. would i be able to use a s afc to control 370cc injectors???

or would i need a stand alone which is $$$$$$$$$$$$$$$$$!?!?!?!?!!?

 

lower the base fuel pressure to 20 PSI and drop a 4:1 disc, thats what Mardigrasmax has done. Thats all I will do. Also since the SAFC can lean the fuel mixture more power to it because that will be my project hopefully next year and a possibly a 3.125 pulley. 11.5-12PSI here I come.

 

was mardi gras base psi 20 at idle????

 

Mardigrasmax was running 370c/min injectors with a stock ECU and a fields afc. He's using a G-force ECU now. An s-afc ought to work just fine. You'll have to experiment with fpr disk size.

http://forums.maxima.org/showthread....ighlight=370cc

 

does anyone know if the sr20det injectors and the tt z injectors are the same or not?????