resized injectors

[mr.prick]

My last log I hit 50% IDC.
The minimum pulse i see in this range is 1.7ms-1.6ms.

I have read the Lucas are rated with n-Heptane and
need to be multiplied by 1.035.
1.035*42.29lb/hr = 43.77lb/hr
43.77lb/hr @ 60psi (average logged fuel pressure) = 51.41lb/hr

My IFR slope {B4001}

MANVAC kPa---- IFR lb/hr
0---------------51.406165
5---------------51.715896
10--------------52.023784
15--------------52.329860
20--------------52.634156
25--------------52.936703
30--------------53.237531
35--------------53.536668
40--------------53.834143
45--------------54.129983
50--------------54.424216
55--------------54.716866
60--------------55.007959
65--------------55.297520
70--------------55.585572
75--------------55.872140
80--------------56.157245

My elevation is about a mile high so I only see 85kPa MAP.
I run 13.11AFR WOT @ 85kPa,
12.9AFR @ 90kPa+

[jonfic]

heres a video on a stock ls2 to 52lbs
http://www.youtube.com/watch?v=RgIx1OtYbZY

[jonfic]

My last log I hit 50% IDC.
The minimum pulse i see in this range is 1.7ms-1.6ms.

I have read the Lucas are rated with n-Heptane and
need to be multiplied by 1.035.
1.035*42.29lb/hr = 43.77lb/hr
43.77lb/hr @ 60psi (average logged fuel pressure) = 51.41lb/hr

My IFR slope {B4001}

MANVAC kPa---- IFR lb/hr
0---------------51.406165
5---------------51.715896
10--------------52.023784
15--------------52.329860
20--------------52.634156
25--------------52.936703
30--------------53.237531
35--------------53.536668
40--------------53.834143
45--------------54.129983
50--------------54.424216
55--------------54.716866
60--------------55.007959
65--------------55.297520
70--------------55.585572
75--------------55.872140
80--------------56.157245

My elevation is about a mile high so I only see 85kPa MAP.
I run 13.11AFR WOT @ 85kPa,
12.9AFR @ 90kPa+

i do not know your set up. what is your chp?

[mr.prick]

My rwhp was 460 last time I dynoed,
but that was with someone other than myself tuning.
The tune was not right, overly rich WOT and awful spark advance.

Setting the Lucas 42`s @ 55lb+ above 60kPa should prevent or reduce rich decel,
but it does not.
These are not used in any vehicle stock, and there no offsets for them that i can find.
A lot or experimenting was needed to get them not to hang open under decel.
42lb is enough for the car but I got the stockers if you still want a set.

[jonfic]

My rwhp was 460 last time I dynoed,
but that was with someone other than myself tuning.
The tune was not right, overly rich WOT and awful spark advance.

Setting the Lucas 42`s @ 55lb+ above 60kPa should prevent or reduce rich decel,
but it does not.
These are not used in any vehicle stock, and there no offsets for them that i can find.
A lot or experimenting was needed to get them not to hang open under decel.
42lb is enough for the car but I got the stockers if you still want a set.

LETS ASSUME YOU HAVE 520 AT THE CRANK, N/A MTR WITH 58PSI RAIL PRESSURE. WITH THOSE NUMBERS USING 80%IDS YOU ONLY NEED 36LB/HR INJECTORS. YOU HAVE 51 WHICH WILL SUPPORT 740 hp. i THINK YOU ARE WAY OVER INJECTED WITH THE WRONG TYPE OF INJECTOR IN THAT MTR. SEND ME THE STOCK INJECTORS i WILL MAKE THEM 36@ 4 BAR AND YOUR CAR SHOULD RUN SPOT ON WITH THE FACTORY TUNE USING THE IFR TABLE I GIVE YOU WITH THE INJECTORS. CALL ME AT THE SHOP TO DISCUSS 770 888 1662
JON

[SSpdDmon]

LETS ASSUME YOU HAVE 520 AT THE CRANK, N/A MTR WITH 58PSI RAIL PRESSURE. WITH THOSE NUMBERS USING 80%IDS YOU ONLY NEED 36LB/HR INJECTORS. YOU HAVE 51 WHICH WILL SUPPORT 740 hp. i THINK YOU ARE WAY OVER INJECTED WITH THE WRONG TYPE OF INJECTOR IN THAT MTR. SEND ME THE STOCK INJECTORS i WILL MAKE THEM 36@ 4 BAR AND YOUR CAR SHOULD RUN SPOT ON WITH THE FACTORY TUNE USING THE IFR TABLE I GIVE YOU WITH THE INJECTORS. CALL ME AT THE SHOP TO DISCUSS 770 888 1662
JON

What about a stock LS1 making 490~510rwhp on 7psi through a T56/Moser12/3.73's and targeting a 12:1 AFR?

[jonfic]

What about a stock LS1 making 490~510rwhp on 7psi through a T56/Moser12/3.73's and targeting a 12:1 AFR?

that motor using a 80IDS and a BSFC of .65 needs 49.15lb/hr using a CHP input of 560
what do you have in there?

[jonfic]

I'll have to keep you in mind. Problem is, I don't have 28's right now. The car came with SVO 42's, which weren't keeping up with my boosted setup and a 255lph pump. I've now got twin pumps on a hobbs switch and the motrons with an inline vacuum referenced FPR. I assume I could swap 'em out and cap off the vacuum ref. on the regulator - but I still have to find some first.

I'll keep my eyes open and if I find a pair, I'll be in touch.

On the other side of the spectrum, I'd be curious on how to find out info about the Motron 60's short pulse characteristics, their voltage offset characteristics, etc. Plugging that info in would be a hell of a lot less work and money. LOL

i have the specs you need for the 60 siemens .. pm me your e mail.I will send it to you

[SSpdDmon]

that motor using a 80IDS and a BSFC of .65 needs 49.15lb/hr using a CHP input of 560
what do you have in there?

So, stockers opened up to 50lb/hr would be a good place to start assuming the car isn't getting any power upgrades in the near future??

i have the specs you need for the 60 siemens 60.. pm me your e mail.I will send it to you

saj79 at aol dot com

Thanks!

[jonfic]

So, stockers opened up to 50lb/hr would be a good place to start assuming the car isn't getting any power upgrades in the near future??



saj79 at aol dot com

Thanks!

MAKE THE STOCKERs FLOW 50@ 4 BAR NOT 3.. your spec sheet is in your e mail
thanks
jon