Rabidbandit

Has anyone had little throttle hesitation with the 60's? We have a 2000 T/A in the sig that's rich as a dog under light throttle, but runs great as soon as the boost starts coming in. Nobody seems to be able to tune this out. Everyone told us go 60's and we are at 82-85% duty cycle at WOT...so idealy it's a good setup with the cam:226/234 .598/.599 117LSA. But we're thinking of going back to the SVO 42.5's because they had no issues I figure we'll be at about the mid 90's under WOT with the SVO's...any thoughts
My thought process tells me that the orfices on the 60's are much larger and the pulse width is so small at idle thru light throttle (about 3-5%) that it's just dripping the fuel instead of atomizing it...and it's just sitting in the runner. Fuel pressure is on the money. I've seen this in TBI....yeah I know, different system and lower pressure We might be using them up top...but out of boost we're not. Everything was great with the 42.5's, should I switch back?

ZL1Killa

iTrader: (17)

are you running OL or CL?

if you are CL then the fueltrims and the car will take over somewhat..... now for CL here is what you need to do.

Set all the tables to stock, lower your injector timing trim (in efi live) to 3.5; adjust your IFR for 58.5psi and 60# inejctors (my first number is 8.875); leave te injector voltage correction at 1; change the min injector pulse width to .5927; change the default min pulse width to .5927; and change the small pulse adjust to :
0.243160
0.243160
0.227963
0.197568
0.197568
0.197568
0.182370
0.167173
0.151975
0.136778
0.136778
0.136778
0.136778
0.121580
0.121580
0.106383
0.106383
0.091185
0.091185
0.091185
0.075988
0.075988
0.075988
0.075988
0.075988
0.075988
0.075988
0.075988
0.075988
0.075988
0.075988
0.075988
0.075988
0.075988
0.075988
0.075988
0.075988
0.075988
0.075988
0.075988
0.060790
0.060790
0.045593
0.045593
0.045593
0.045593
0.030395
0.030395
0.030395
0.030395
0.030395
0.030395
0.030395
0.015198
0.015198
0.015198
0.015198
0.015198
0.015198
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000
0.000000

then in your scan tool make you a MAP for dialing in the VE table; make a MAP for DATA being LTFT 1% (AVerage) vs RPM; and a MAP for LONGFT1 vs MAFFREQ; then if you want to go ahead and make a KR MAP and a Spark MAP go for that. also the Wideband vs MAF freq to dial it in but you can also do that with the fuel trims and the MAF...
drive the car log that change the VE and the MAF numbers and you should be good to go.

you might have to play with the things that i bolded and probably add to them due to your car using more fuel than mine at idle and it will need a larger pulse width

Rabidbandit

CL and tuned with HPT....but I'm not a tuner...I know what your talking about, but can't implement it I'll PM our tuner and forward the info. Thanks...two heads are always better than one

ZL1Killa

iTrader: (17)

you may need to play with the numbers. I HIGHLY RECOMMEND printing out what i posted so that your tuner can READ it fully.

some of that may also need to be played with for your particular car

Rabidbandit

Thanks....we found the problem We thought that the Mototron's were rated at 60psi...but we realized they were at 43.5...I'm sure you see the problem