What's going on guys just wanted to share with you all my results and if i can get some tips on fixing my situation, so nitrous 2v's chime in!!
It's a 99 2v coupe with a rebuilt stock bottom end.
BBK CAI
ACCUFAB 70MM TB
ACCEL COILS
FORD RACING PI INTAKE
39 LB COBRA INJECTORS
WALBRO 255LPH PUMP
LIGHTNING 90MM MAF
3.73 GEARS
XE270AH COMP CAMS
STOCK PI HEADS WITH HEAD WORK DONE
PACESETTER LONGTUBES
BBK X PIPE TO DYNOMAX BULLETS
NITROUS EXPRESS MAINLINE KIT
FUEL JET-28 N20 JET-52 FOR 100 SHOT
Made 284hp n/a and on spray 320 hp through a dynojet and i was very disappointed in that, anyone who can give me tips on what it could be? Nitrous pressure was around 1100 psi.
I wouldnt take those numbers too seriously, dynos very from place to place, operator to operator and air temp to air temp. Track times are more definitive so if you plan to track the car then use those numbers not dyno numbers.
True I didnt even think of that. The dyno graph looks pretty smooth so I doubt its tune related. What rpm do you start spraying? Maybe timing is being pulled at the upper rpms? It acts more like a 50 shot.
Yeah that's why i was concerned as well, I know he pulled timing for the nitrous tune don't know how much but i can find out. Clutch started slipping a bit when he hit the button. Started spraying at 3000 rpm i believe
That's on my list next lol, and for timing i just messaged him just waiting for him to text me back and it's a plate kit by the way sorry for not mentioning that
My car never ran worth a **** with the AR plugs. Get some NGK Tr-6's gapped at .032 . For comparison my car gained 208 rwhp on a 150 NX shot with CMS Stage II cams
I hate to say it but without the Graph showing HP, Tq, RPM, & A/F, and without you knowing what the timing was on and off nitrous, and without knowing if it was dyno'd correctly, there is no answer to your question.
You need to go to someone that knows what they're doing when it comes to tuning and for the record there's no way for them to possibly tune it if they're not monitoring A/F and timing. A Dyno sheet should always show the A/F Graph and you and the tuner need to know your timing throughout the entire run (on and off the juice).
Bottom line, you need to find a new tuner.....
PS
Heres a old Dyno from my old 99GT 4.6 2V after I throw a used Procharger on it.
100% bone stock high mileage motor with a P1SC on it and a super safe low octane street tune
I wouldn't run those injectors either. They're a split spray pattern so they tend to pool up near the intake and kind of give off results. Look into 42lb lightning injectors.
I run ngk br7ef plugs. Gapped at .028. Something is definatly off. He may have took to much timing. Also you ideally want bottle pressure at or near 950psi. Wet nitrous kit or dry?
So i wasn't able to get in contact with the shitty ass tuner and get info, so I'm just gonna look for a different tuner who can help me out, but for now I'm ordering a afr gauge to see what they're at daily driving.. To be continued guys until i find a tuner and it's a wet kit by the way for anyone wondering
Those injectors are fine. I would leave them and tune the motor. Something I do that most tuners wont is spend alot of timing building the timing tables for a nitrous tune. On 91-93 octane I run 125rwhp (.57 nitrous jet/.33 fuel jet) on stock timing (21 degrees at peak hp and redline) and set the AFR at 11.5-11.8AFR.
A nitrous tune doesnt have to drive like a turd. I tune the car N/A first and do a very aggresive N/A tune. I spend alot of time working with the part throttle timing and transitioning to Open loop. Once I'm satisfied with how it drives (substantially better than a stock tune!!!) I then will rework the timing tables for nitrous. I only remove timing in the specific RPM range and load range that nitrous is used.... no reason to remove 4 degrees timing everywhere. It makes the car drive like a slug. I only remove timing in WOT load ranges and only 3k RPM - redline. Anything below 3k rpm I leave full timing and anything outside of WOT I leave full timing... nitrous will never be used there so no use pulling timing there it only ruins gas mileage and throttle response.
Once tuned correctly on a .52 nitrous jet you should see 375rwhp+ and over 450ftlbs tq.
Find a tuner that will do what I described above and you will be happy.
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