installed new toys...

[420_240]

started at approximately 4pm (sat afternoon)... finished approximately 7am (sun morning)... me, sparksta (brandon), and another friend of mine worked on the car all night.We installed the following:-nismo 555 injectors-HKS gt-rs turbo kit-unplugged and reset the PowerFC(still have yet to install the PowerFC boostCntrlR

After finishing the install we started the car up... let it run for about 15 minutes... then decided to take a drive...

turbo would spool to about 5psi then begin to stutter/power loss/no response

took the car back to the house... checked vacuum lines, re-adjusted fuel pressure (43psi-w/o vacuum)... disconnected battery, drained power (pumped the brakes a few times)... reconnected battery and let the car run for another 15 minutes.Round 2: drove the car up the street a block.... everything good... then POP... loose intercooler coupler popped off.... took the car back to the house... tightened the coupler back down and double checked the others.Round 3: drove the car up the block... everything is running smooth... hit boost at 12psi... came to a stop... checked the FC and knock reached 165!!!!! Drove the car back home off boost and parked it... The car hasn't been tuned in any shape or form yet. I'm not sure if i need to set the PowerFC to let it know the injectors are bigger or what....

Just thought I'd let you guys know how the progress was going... I've got plenty of pix and i'll post them as soon as I get them uploaded.Any thoughts/criticism/compliments are as always welcome.-Andrew

[Yellow4g63]

started at approximately 4pm (sat afternoon)... finished approximately 7am (sun morning)... me, sparksta (brandon), and another friend of mine worked on the car all night.We installed the following:-nismo 555 injectors-HKS gt-rs turbo kit-unplugged and reset the PowerFC(still have yet to install the PowerFC boostCntrlR

After finishing the install we started the car up... let it run for about 15 minutes... then decided to take a drive...

turbo would spool to about 5psi then begin to stutter/power loss/no response

took the car back to the house... checked vacuum lines, re-adjusted fuel pressure (43psi-w/o vacuum)... disconnected battery, drained power (pumped the brakes a few times)... reconnected battery and let the car run for another 15 minutes.Round 2: drove the car up the street a block.... everything good... then POP... loose intercooler coupler popped off.... took the car back to the house... tightened the coupler back down and double checked the others.Round 3: drove the car up the block... everything is running smooth... hit boost at 12psi... came to a stop... checked the FC and knock reached 165!!!!! Drove the car back home off boost and parked it... The car hasn't been tuned in any shape or form yet. I'm not sure if i need to set the PowerFC to let it know the injectors are bigger or what....

Just thought I'd let you guys know how the progress was going... I've got plenty of pix and i'll post them as soon as I get them uploaded.Any thoughts/criticism/compliments are as always welcome.-Andrew

Yes you need to set the injector lag time for the new injectors with the commander.

[eh?]

yes you need to set lag time and % correction for the inj's.

[Carl H]

not to mention boosting on a large turbo (for the first time) with no wideband is a big no no.

[goofynick6]

Yeah, larger injectors take more time to fire, so they're not opening enough to fire properly. Get the lag time set properly, the time depends on the injector size. ALso, get a wideband on there unless you feel like pulling everything apart and spending thousands on forged parts.

Nick

[Fenvy]

I beieve you can set the duty by divinging the stock size by the new size... so 380/555=66.67%

I know at leat that... but I Don't know that's the correct lag time, can anyone help?

by the way, how do you check the knock in terms of a number figure? mine is just a bar that goes across, at the worse I seen on my car it's about 10%

[420_240]

thanx for the insight fellas...Nick: a wideband is on my list of things to order ASAPLoveless: I started reading something about what your saying in the english version of the PowerFC manual (for rx7)... I have still yet to understand what i need to be setting.... I'm not clear on if there's a setting to select "555cc" for a larger injector... also what is this i read about primary and secondary injector settings on the PFC? Also I would like to know the correct way to set the lag time.to see the knock level numerically you need to put your pfc in peakhold mode.... when you go to monitor then choose 8-channel (haven't tried it in any other channels but it should work).... instead of the graph... click next and go to the list where you can see ign. time, inj. duty, air flow, rev, ect... You can see your knock level as a bar in this mode.... now click the "UP" arrow and you have put it in "peak hold mode"... this holds the highest numerical values being monitored

[goofynick6]

On my 550cc setup, my hex value for lag time is 102, so not sure how your lag time is input, but that's what mine is.

Nick

[420_240]

I beieve you can set the duty by divinging the stock size by the new size... so 380/555=66.67%

So does this mean where it lists all injectors at 100% and the lag time at 0.0ms.... i add 66.7% to the 100% that's already listed? 166.7%?

[Fenvy]

no, what I meant is that you should set all 4 injectors to 66.5% for 550cc

740cc woule be 380/740=51.4* round off to the nearst 0.5 which woudl be 51.5%

I just read your mod list and you have rb, I don't know what RB injector sizes are but you need to take that number and divide by upgraded injector size

can someone explain why to set the lag time at 102? and what is this "hex value" ?

[420_240]

no, what I meant is that you should set all 4 injectors to 66.5% for 550cc

740cc woule be 380/740=51.4* round off to the nearst 0.5 which woudl be 51.5%

I just read your mod list and you have rb, I don't know what RB injector sizes are but you need to take that number and divide by upgraded injector size

can someone explain why to set the lag time at 102? and what is this "hex value" ?

Ok i'm beginning to understand with some help from the PFC manual....rb25det stock injector size is 370cc.... soooooo....If changing primary injector volume to 550cc/min and the injectors lag time is .am/s (a=unknown, but i have read it's .58m/s)

Injector Pulse Correction Value would be (setting for primary injector only)370 / 550 = .672 aprox. 67 or 67.5%

Injector Lag Time would be: (primary) 0.y - 0.x = +0.a[m/sec] Y= new injector lag timex= old injector lag timeA= the difference between the new and old injector lag times

1 minute injector volume would be(new injector) 550cc/min (old injector) 370cc/min

When the settings haven't been altered... they look like this...

I n j e c t o r D a t a No1. 100% +0.00[m/sec] No2. 100% +0.00[m/sec] No3. 100% +0.00[m/sec] No4. 100% +0.00[m/sec] No5. 100% +0.00[m/sec] No6. 100% +0.00[m/sec]

Now with the new settings plugged in....(remember a= difference between new & old injector lag times) I n j e c t o r D a t a No1. 67.5% +0.a[m/sec] No2. 67.5% +0.a[m/sec] No3. 67.5% +0.a[m/sec] No4. 67.5% +0.a[m/sec] No5. 67.5% +0.a[m/sec] No6. 67.5% +0.a[m/sec]

[Fenvy]

where do I get a manual?

[blk90s13]

http://www.apexi-usa.com/support_installation.asp

[Yellow4g63]

I'm kinda late but what the hell.

http://www.members.aol.com/SRF...r.htm explains the injector setup.

http://www.members.aol.com/SRF...e.htm

[SillyRB]

Word for the Wise. Do not drive a car with a new set up and a new EMS without a Wideband. PLEASE !! You do not need a blown motor. Check the timing, often while you are driving around untuned. Which you should not do !! Get a Wideband A.S.A.P try not to drive the car unless you get one. http://www.innovatemotorsports...1.phpThat is what i have. It is simple, the most accurate on the market and a reasonable price.Good luck and get that thing on a dyno soon.

[silent dave]

Loveless: I started reading something about what your saying in the english version of the PowerFC manual (for rx7)... also what is this i read about primary and secondary injector settings on the PFC?

RX-7s run off 2 primary injectors and 2 secondary injectors. so just ignore that stuff.

[Yellow4g63]

Yeah widebands are pretty cheap now. I didn't go with the speak n spell wide band monitor. I went with this one, http://www.zeitronix.com/order/order.htm Zt-2+lcd and egt.

[Carl H]

if you are handy with a soldering iron you can also look into the tech edge wideband which is very inexpensive and works very well.also the hex bit most of you guys can ignore its for us morons who like to muck with the stock ecu :p.as it stands right now ive got my car running a z32 maf and 550 injectors thru the ecu while i tweak with the emanage and once i get a tune i like i will proly burn a chip to control it off of the ecu.

[Fenvy]

at 7k rpm, my knocking peaked at 15, is that good? I have no idea what this means, 15 times a second? if knocking is at 15 does that mean I have low detonation?

also, injectors duty peaked 65 something percent. is that out of 100% or the 66.5% I configured for all 4 injectors?

[Yellow4g63]

at 7k rpm, my knocking peaked at 15, is that good? I have no idea what this means, 15 times a second? if knocking is at 15 does that mean I have low detonation?

also, injectors duty peaked 65 something percent. is that out of 100% or the 66.5% I configured for all 4 injectors?

It's the knock count and 15 is pretty good.