83 lb/hr. Injectors and Driver Box Are In!!!
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83 lb/hr. Injectors and Driver Box Are In!!! Well,
I wired up the driver box and the injectors and basically made a guess with LS1Edit and....
The car fires up and runs great. I still have some fine tuning to do, but my initial report is that everything is working well.
The driver box install was a bit of a pain because I ran 14 guage wire to all of the injectors...but it was worth it.
Now all I have to do is the rest of the fuel system...lol
Scott
I wired up the driver box and the injectors and basically made a guess with LS1Edit and....
The car fires up and runs great. I still have some fine tuning to do, but my initial report is that everything is working well.
The driver box install was a bit of a pain because I ran 14 guage wire to all of the injectors...but it was worth it.
Now all I have to do is the rest of the fuel system...lol
Scott
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Re: 83 lb/hr. Injectors and Driver Box Are In!!! <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />
Can you run these injectors on a 4xx rwhp setup, just to make space for lots of room for improvement?
Are you going to do a fuel pump next?
<small>[ September 09, 2002, 06:31 PM: Message edited by: AlienDroid ]</small>
Can you run these injectors on a 4xx rwhp setup, just to make space for lots of room for improvement?
Are you going to do a fuel pump next?
<small>[ September 09, 2002, 06:31 PM: Message edited by: AlienDroid ]</small>
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Re: 83 lb/hr. Injectors and Driver Box Are In!!! Yes you can, they seem pretty streetable so far <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
I have a 255 intank and a regulator in the car, but with LS1Edit you CAN tune for them pretty well...my first guess looks like it may be pretty damn close <img border="0" alt="[Burnout]" title="" src="graemlins/burnout.gif" />
Scott
I have a 255 intank and a regulator in the car, but with LS1Edit you CAN tune for them pretty well...my first guess looks like it may be pretty damn close <img border="0" alt="[Burnout]" title="" src="graemlins/burnout.gif" />
Scott
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Re: 83 lb/hr. Injectors and Driver Box Are In!!! then I'm going to scratch my plans for the 5x lb/hr injectors and go for the 83 lb/hr <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
Where did you get yours? How much were they?
Where did you get yours? How much were they?
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Re: 83 lb/hr. Injectors and Driver Box Are In!!! I got mine from a vendor at camaroz28.com...just go there and look in the group purchase section.
You are also going to need an impedance converter box from somewhere to handle the low impedance injectors.
However, I have run into a problem tuning and can't seem to get around it. Whenever you stay in a fuel cell too long it seems that the o2s stop switching and the car stays rich.
I need to consult the LS1Edit gurus.
Scott
You are also going to need an impedance converter box from somewhere to handle the low impedance injectors.
However, I have run into a problem tuning and can't seem to get around it. Whenever you stay in a fuel cell too long it seems that the o2s stop switching and the car stays rich.
I need to consult the LS1Edit gurus.
Scott
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Re: 83 lb/hr. Injectors and Driver Box Are In!!! how much RWHP will these support on a turbo car?? I got some ordered and I hope I didnt get them too small <img border="0" alt="[devil]" title="" src="graemlins/gr_devil.gif" /> if I did youll be seeing them in the forsale section <img border="0" alt="[Banging Head]" title="" src="graemlins/gr_banghead.gif" />
<small>[ September 10, 2002, 09:43 AM: Message edited by: mexSSican ]</small>
<small>[ September 10, 2002, 09:43 AM: Message edited by: mexSSican ]</small>
Re: 83 lb/hr. Injectors and Driver Box Are In!!! Scott
you're gonna run into that problem
Might want to start considering an open loop program with those squirters.
My 96's are in and running for the last 1k miles.
Problem is, the big injectors require much smaller pulse widths at low engine load than the stockers. Or even the 42's.
I'm betting your a-tap pulsewidths are never dropping below like 1.5 or 1.6 ms, but your trims are ramping way down. Then you get a tip in lean stumble when you change cells. Sound about right??
you're gonna run into that problem
Might want to start considering an open loop program with those squirters.
My 96's are in and running for the last 1k miles.
Problem is, the big injectors require much smaller pulse widths at low engine load than the stockers. Or even the 42's.
I'm betting your a-tap pulsewidths are never dropping below like 1.5 or 1.6 ms, but your trims are ramping way down. Then you get a tip in lean stumble when you change cells. Sound about right??
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Re: 83 lb/hr. Injectors and Driver Box Are In!!! Matt,
That is exactly what is happening, the pulse width stays at 1.6...and the car stumbles at tip in. So the problem is that this is the lowest PW that the computer can send?
I am going to get in touch with the people that make LS1Edit and see if they can help.
If not, it looks like I will be going open loop!
Thanks,
Scott
That is exactly what is happening, the pulse width stays at 1.6...and the car stumbles at tip in. So the problem is that this is the lowest PW that the computer can send?
I am going to get in touch with the people that make LS1Edit and see if they can help.
If not, it looks like I will be going open loop!
Thanks,
Scott
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Re: 83 lb/hr. Injectors and Driver Box Are In!!! Quick Update...
Been tuning the car in open loop mode and it is not too bad! It still runs pretty rich at idle and part throttle, but I am slowly getting it there.
The car seems to have lost the hesitation it had when running in closed loop and all the little tuning is bringing back the power.
A dedicated WB is a blessing for this kind of tuning <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Scott
Been tuning the car in open loop mode and it is not too bad! It still runs pretty rich at idle and part throttle, but I am slowly getting it there.
The car seems to have lost the hesitation it had when running in closed loop and all the little tuning is bringing back the power.
A dedicated WB is a blessing for this kind of tuning <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Scott
Re: 83 lb/hr. Injectors and Driver Box Are In!!! </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Scott 98Z M6:
<strong>The car seems to have lost the hesitation it had when running in closed loop and all the little tuning is bringing back the power.
</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">It was your trims learning the car into a hole. the short pulses get clamped to a much higher than needed value, but the trims ramp way down trying to fix the rich condition. You tip in and the trims need to learn back up from the hole once the commanded pulse width goes above the lower limit.
Interesting quirk, but a decent open loop setup will work wonders. Get it setup, pull the O2's and you car run good gas whenever you want <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
<strong>The car seems to have lost the hesitation it had when running in closed loop and all the little tuning is bringing back the power.
</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">It was your trims learning the car into a hole. the short pulses get clamped to a much higher than needed value, but the trims ramp way down trying to fix the rich condition. You tip in and the trims need to learn back up from the hole once the commanded pulse width goes above the lower limit.
Interesting quirk, but a decent open loop setup will work wonders. Get it setup, pull the O2's and you car run good gas whenever you want <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />