Anyone running 440cc injectors and piggyback?
Anyone running 440cc injectors and piggyback?
Is anyone running 440CC injectors and any sort of piggy back?
I'm trying to see if a piggy back and stock ECU can correct for injectors that are so much larger than stock?
I'm trying to see if a piggy back and stock ECU can correct for injectors that are so much larger than stock?
What car are you talking about? The 300 or a 400/430? The 2JZ engine will allow for 440cc injectors, but, you will need to get a bigger MAF. When I go turbo I will be getting a S-AFC2 and an LS400 MAF and I already have some RC Engineering 440cc injectors. The injectors are not installed of course, just waste gas with bigger injectors.
Sorry talking about the GS400, I am concerned that the stock ECU and SAFC cannot handle such larger injectors. There is a limit to what the SAFC can do with respect to controlling larger injectors.
what size are the stock injectors? 270s? 230s? i heard somewhere, but not sure.
440s should not be a problem either way. just boost map them(like we discussed before) so they arent dumping fuel when you dont need it based on TPS. I have 550s on a Prelude turbo running the same setup (340s stock)
440s should not be a problem either way. just boost map them(like we discussed before) so they arent dumping fuel when you dont need it based on TPS. I have 550s on a Prelude turbo running the same setup (340s stock)
Originally Posted by morris
Even if it were able to handle it at WOT I dont think it will be able to do a good job at partial throttle.
IE driveabillity will suffer
IE driveabillity will suffer
I have plans to dyno on Friday night if I can get the right belt!!
tried 3 times thus far!! 
I will let you know what happens with my fuel as I am also running 440's with SAFC2.Jonny
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Good luck DX let me know, I am pretty sure that it will dyno okay since it is at WOT but the question comes in duing around the town driving and at partial throttle. You would really need a Wideband to dtermine what the af looks like at different rpms and at partial throttle. you could be tuned well at wot but at partial throttle you may be really really rich.
JPI so far I havent done anything with timing. I am beginning to really think about leaving the SAFC and moving to a Emanage ultimate, I have even thought about AEM but I really dont want to do a standalone on my daily driver.
So far believe it or not I havent had any issues with timing but your right I would rather be safe than sorry and as funds allow I will definitely look at moving to the ultimate or something similar.
JPI so far I havent done anything with timing. I am beginning to really think about leaving the SAFC and moving to a Emanage ultimate, I have even thought about AEM but I really dont want to do a standalone on my daily driver.
So far believe it or not I havent had any issues with timing but your right I would rather be safe than sorry and as funds allow I will definitely look at moving to the ultimate or something similar.
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[QUOTE=morris]Good luck DX let me know, I am pretty sure that it will dyno okay since it is at WOT but the question comes in duing around the town driving and at partial throttle. You would really need a Wideband to dtermine what the af looks like at different rpms and at partial throttle. you could be tuned well at wot but at partial throttle you may be really really rich.
QUOTE]
Morris,
I have a wideband in my car - put it in last week
I have my low throttle perfect, now I am tuning on the dyno for high. What are your hi/low parameters set at for throttle?? I think mine are 15 and 85. I read that SC should be 15/85 and turbo should be 25/50 - not sure if that is right though.
I had the Greddy emanage but was told from several different people that it did not work well with the Toyota V-8 motor
Jonny
QUOTE]
Morris,
I have a wideband in my car - put it in last week
I have my low throttle perfect, now I am tuning on the dyno for high. What are your hi/low parameters set at for throttle?? I think mine are 15 and 85. I read that SC should be 15/85 and turbo should be 25/50 - not sure if that is right though.I had the Greddy emanage but was told from several different people that it did not work well with the Toyota V-8 motor
Jonny
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Joined: Jun 2005
Posts: 69
Likes: 0
From: WA
When i had my turbo prelude I ran 440cc RC injectors on it, using a piggy back to control...I ended up using the e-manage piggy back, before they had the ultimate. It worked really well, had no problems with it, started fine ran fine. e-manage also allowed me to adjust timing and a/f boost dependant.
Lexus Champion
Joined: Jun 2003
Posts: 2,079
Likes: 2
From: Texas
Please don't forget the SAFC only has 10-11 points of adjustment. Who say the greddy ultimate doesn't work with 1uz? Is this one of the myth again? Morris, if you need help with the ultimate. Let me know.
JPI
JPI
SAFC2 has 12 NE points that are configurable in 200 rpm increments. It also has 2 separate data files that are switchable on the fly. I used to have one setup for my nitrous system that I would just flip over to the different fuel mapping at the stop light when i turned the bottle on.
SAFC2 is still no replacement for actual mapping control (Emanage.. EMS..etc).. but if boost referenced, not TPS referenced, it can be pretty powerful.
SAFC2 is still no replacement for actual mapping control (Emanage.. EMS..etc).. but if boost referenced, not TPS referenced, it can be pretty powerful.
Guys I really have a deep affection for this site and the people on it. Thank you so much for the continued assistnace and feedback everyone always has to offer. It will help me to make more informed decisons as I collect money and move forward.
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