BrianK
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« on: April 19, 2008, 07:42:35 PM » |
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o.k. i did some data logging and adjusted my map a little. so i figure let me really wring out the throttle and see what i got. i had the turbo since december and never really, really nailed it like i did today. the f1 light came on when i did. i wasn't logging at the time so i let the adrenaline subside a little and went for it again- all out. fi light again. looked at my data when i got home and nothing that out of the ordinary i think. 11.7 a/f, max tp 86%, max duty cycle 73%, max boost 7.37 psi, max speed (gps) 143mph, max rpm 9540, 2 pair underwear, 4th gear run. i only made adjustments in 3 to 6 k range so i don't think my map was the cause?
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Chris Horoho
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« Reply #1 on: April 19, 2008, 07:49:48 PM » |
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anything over 70% duty cycle will setoff the FI light
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BrianK
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« Reply #2 on: April 19, 2008, 07:50:51 PM » |
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o.k. that is the answer then. is this a problem?
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Dan.J
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« Reply #3 on: April 19, 2008, 08:32:18 PM » |
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mine trips the FI light everytime i hammer on it...even with s2000's. nothing a little black tape over it dont fix  |
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  06 Busa ......8 sec. streetbike |
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Chris Horoho
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« Reply #4 on: April 19, 2008, 08:35:16 PM » |
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im not a fan of it but you cant do much about it
at 85% duty cycle you are basically maxed out with injectors
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BrianK
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« Reply #5 on: April 19, 2008, 09:00:05 PM » |
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how about the 2 pair of underwear is that pretty standard?  |
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Chris Horoho
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« Reply #6 on: April 19, 2008, 09:13:28 PM » |
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ya until you get to the 15 pound range then the count goes up
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ICBM
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« Reply #7 on: April 19, 2008, 10:48:26 PM » |
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So if you have secondaries, will you trip the light?
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Chris Horoho
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« Reply #8 on: April 20, 2008, 02:28:17 AM » |
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no not if the check valve routing is properly setup so the map sensor doesn't see boost
if setup correct the fi light won't come on (mine never did)
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Dan.J
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« Reply #9 on: April 20, 2008, 08:46:10 AM » |
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we gots lots of locals here with secondaries that trip the FI light......i would assume they are set up correct as they are TRUE street bikes that run 8.30's-8.70's. MCX express kits. its really not a big deal just a little annoying....just a idiot light, doesn't mean your shit is gonna blow up.
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06 Busa ......8 sec. streetbike
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Chris Horoho
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« Reply #10 on: April 20, 2008, 09:13:27 AM » |
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the setup i had never set off the light when i had my last turbo bike the code he is throwing isnt the same as the code he is throwing the code they throw is from their shifter (i would set it off with the shifter but never from the turbo kit) that is the difference between theirs and his  he prolly wont burn it up but he is pushing the limits of the injectors |
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ICBM
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« Reply #11 on: April 20, 2008, 11:46:18 AM » |
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Well, I'll have an air shifter from Matt from CycleTek here shortly. Having the light turn on doesn't bother me I was just curious.
Does the light trip whether using a fuel cutoff or ignition cutoff? I'd imagine both as the ECU would see both instances as an issue.
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Chris Horoho
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« Reply #12 on: April 20, 2008, 11:55:15 AM » |
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matts doesn't set off the light
its the mps box that does it
and its the ignition kill that sets the light off (except matt's)
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Dan.J
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« Reply #13 on: April 20, 2008, 01:58:34 PM » |
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yah not sure.....but i do know the guys have Matt's box on them. so i have no idea why there trippin the light with secondary's.
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Chris Horoho
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« Reply #14 on: April 20, 2008, 03:02:40 PM » |
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if codes are pulled you can tell i know with a stage one it would be due to the injectors being over used there is an older tee setup with check valves im not a fan of that seem to still get ya at higher boost levels they arent having the same problem as a stage 1 but brians problem is the injectors being over 70% duty cycle i wont ave that problem any more i am going to be running a standalone (no fi light lol) |
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« Last Edit: April 20, 2008, 03:05:25 PM by Pinky »
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jasonsbusa
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« Reply #15 on: April 20, 2008, 03:04:08 PM » |
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I have Tonys secondary system and an MPS CO2 shifter and no FI light  When I had the FMU it always tripped the FI |
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OzBooster
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« Reply #16 on: April 20, 2008, 06:24:22 PM » |
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Guys tripping the FI with secondarys probably need a second checkvalve,they will be running higher boost and the single checkvalve can't relieve enough pressure from the IAP.
Probs from the high dutycycle or rpm with the pc3usb is the std ecu expects to see a back spike from the injector firing,pc replicates this but once the duty cycle gets high enough for some reason the pc can't keep the proper signal happening. probably the initiation of the next inj event is overlapping
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Dan.J
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« Reply #17 on: April 20, 2008, 06:39:32 PM » |
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Guys tripping the FI with secondarys probably need a second checkvalve,they will be running higher boost and the single checkvalve can't relieve enough pressure from the IAP.
Probs from the high dutycycle or rpm with the pc3usb is the std ecu expects to see a back spike from the injector firing,pc replicates this but once the duty cycle gets high enough for some reason the pc can't keep the proper signal happening. probably the initiation of the next inj event is overlapping
ah...ill pass the second check valve trick on to the ones i know with secondary's that are kicking the light |
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06 Busa ......8 sec. streetbike
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BLACK_DEATH
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« Reply #18 on: May 11, 2008, 06:47:20 PM » |
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