What to fix on my Fuel System?
#42
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Just bump to 70 and see. Then 80. I think even 90 it will still work and give you enough headroom for now
I suggest starting with easiest/cheapest approaches first, obviously. You can always throw spensive injectors at it later.
Is your AFR at 12 accross the board? Is your timing all solid? Let's see a virtual dyno pull and where she's at power wise. If you're sub 400 then you need to figure out what's wrong because you should easily make 400 on current fueling, at least I think so. (and is the sc really eating 100hp? I ask because in that case you're likely near the limit)
I suggest starting with easiest/cheapest approaches first, obviously. You can always throw spensive injectors at it later.
Is your AFR at 12 accross the board? Is your timing all solid? Let's see a virtual dyno pull and where she's at power wise. If you're sub 400 then you need to figure out what's wrong because you should easily make 400 on current fueling, at least I think so. (and is the sc really eating 100hp? I ask because in that case you're likely near the limit)
AFRs are at 11.5, I've been hesitant to go to 12.0 but I think I need to. Was going to test 11.5 and 12.0 at the track last night but got rained out.
EDIT: And timing is solid, I'm runnin 19-20 degrees of advance at 18 PSI boost.
#46
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Ok. At 18 PSI, the SC is only using about 75hp for that boost level. So does 75% duty cycle make sense in this situation? Or do you think something is wrong with the fuel system? I swear I've done everything in the fuel system.
Twin pumps, new filters
New 10 gauge wires/new relay to power both pumps. Measured voltage drop to confirm they're getting good power under load..
6 AN lines
Aeromotive regulator in engine bay
6 AN return line.
Wix fuel filter.
ID 1000's
EDIT: Datalog at 18 PSI
Twin pumps, new filters
New 10 gauge wires/new relay to power both pumps. Measured voltage drop to confirm they're getting good power under load..
6 AN lines
Aeromotive regulator in engine bay
6 AN return line.
Wix fuel filter.
ID 1000's
EDIT: Datalog at 18 PSI
![](https://www.miataturbo.net/attachments/general-miata-chat-9/153799-what-fix-my-fuel-system-datalog_zpsq22r31mf.png?dateline=1446322139)
#48
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It looks like 900 buys a set of ID 2000s. I'm going to look around and see if there's any other option. If i buy these, I could sell my ID 1000s to get some of the money back. Still it seems crazy 900 for 4 injectors.
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I read they were for E85 only. Supposedly they can idle on E85, but not on gas. But I've never used them, and don't know anyone that's using them either. On the up side, being supercharged I keep the idle higher than normal, so I'll probably be ok on that front. As long as it will idle smoothly, I'm ok with it idling a bit high I do that anyways.
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The do the 1700s. They are the same new design. They partnered with Bosch to make them to their own design.
ID1300 and ID1700 - True Motorsport Injectors - Injector Dynamics
Should idle much better than the 2000s.
ID1300 and ID1700 - True Motorsport Injectors - Injector Dynamics
Should idle much better than the 2000s.