Hit the dyno today with the 150 shot. I just tuned the car for NA. My NA pulls were at around 12.5 AFR on their dyno. Then tried the spray and gained only like 80 HP with the 150 shot, that **** was way too rich, all the way down to 10.1 AFR, lol. Guess I should put a smaller fuel jet in. Can anyone recommend a good size jet for me, I am currently running a 33 jet. I think i may try a 31 jet later tonight and log with my wideband. This sucks last time I dynoed and made a lot more power, although i was kinda lean.

One other question, they said that the dyno wideband is more accurate than mine because everytime they fire up the dyno, the wideband has the ability to recalibrate itself to the current air. Anyone know about that??

 

10:1 is pretty fat for a little 150 shot. I would work that AFR out and you'll pick up some. I checked my LM-1 against a high $ dyno WB (said the same about recal every time) and the difference being my WB was .1 leaner than the Dyno WB.

 

Was the dyno you were on loaded for the vehicle weight cause that can have an affect. I have 70 HP to make up for here thats a lot. Maybe the bottle started to run out and air was in there or something. Ill get a refill and try the 33 fuel jet again and if its still rich Ill try the 31.

 

Oh and the dyno was a dyno dynamics dynameter. The AFR went below 12 at only 3500RPM's and continued to drop all the way to redline.

 

Brad,
This is Justin from the shop...I would def. re jet that fuel side!!

Really nice car man...Next time you come to dyno we should log the A/F with your wideband and compare it to the dyno A/F printout...that would really tell us where you are at during your street tune.

 

hey man, I went out later I left the shop and heated the bottle up a lot, gave it a quick purge and got a tiny cloud, then no cloud at all, the same thing that happened at the shop. It took a lot of heat to get it up to 1000PSI so i figured it was full of air. Well I took it home and emptied the bottle and got nothing but air. So I guess the bottle was empty. I thougt that was possible since last time I dynoed the AFR on N20 was close to my NA AFR.

I will be back tommorow to get the bottle filled by you guys and get another 3 pulls on the dyno. I will bring my laptop to log my wideband vs yours. Can you guys get me in there again tommorow??

BTW, I love your car, that cam sounds so nice. I cant wait to get one myself.

 

Looks like you need to update your sig!

462HP AND 543Lbs-Ft at 11:1ish... !!

 

yeah, lol. Thanks to the guys at ST performance. Got 462 Hp 543Lbs-ft AFR ranged from high 12's down to about 11.1. Nice and safe!! I just had to get a good refill of the bottle.