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Which injector to buy

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Old 11-22-2007, 10:09 AM
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I am running E-85 and need new injectors. What are the pros and cons to using high or low impedance injectors. Which ones are easier to tune for emissions/idle? Thank you
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Old 11-22-2007, 10:13 AM
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your elevation mustbe playin hell with your track times...have never seen a 650 rwhp car run low 13's..
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Old 11-22-2007, 10:35 AM
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the motor is the the only thing modded, i dont want brake anything. that and i suck at drag racing.
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Old 11-22-2007, 04:23 PM
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Originally Posted by vaticano
I am running E-85 and need new injectors. What are the pros and cons to using high or low impedance injectors. Which ones are easier to tune for emissions/idle? Thank you
you want high impedance as i think thats factory (could be backwards here....LOL)dont ya love when that happens
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Old 11-22-2007, 04:35 PM
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yes high is stock
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Old 11-24-2007, 09:03 AM
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the problem with high impedance is they are to small. i am cosidering switching to low impedance w/converter box. just trying to find out if it's worth the extra $$.
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Old 11-24-2007, 12:31 PM
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Originally Posted by vaticano
the problem with high impedance is they are to small. i am cosidering switching to low impedance w/converter box. just trying to find out if it's worth the extra $$.
racetronix just came out with a 79lber at 43psi, which someone calculated to be 91lbs at 68psi there is a thread about it
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Old 11-24-2007, 01:08 PM
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60's should be large enough for your setup and power levels.
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Old 11-24-2007, 05:43 PM
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Originally Posted by Rhino79
60's should be large enough for your setup and power levels.
thats the problem. i have a forged short block i am building, to handle more boost/power. i cant find any info other then E-85 requires 30% more fuel than gas.
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Old 11-25-2007, 09:49 AM
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Ah I see.
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Old 11-25-2007, 01:50 PM
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Originally Posted by vaticano
the problem with high impedance is they are to small. i am cosidering switching to low impedance w/converter box. just trying to find out if it's worth the extra $$.
Generally high-flow low-Z injectors have faster speed and better consistency over their high-Z counterparts. If you have spent that much $ on a motor that needs low-Z injectors then the additional cost of running a low-z setup relative to the cost of everything else is pretty much a drop in the bucket. Especially if it means achieving maximum HP and reliability.

We offer bundle pricing for this setup when purchased with injectors.
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Old 11-26-2007, 11:53 PM
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Originally Posted by vaticano
thats the problem. i have a forged short block i am building, to handle more boost/power. i cant find any info other then E-85 requires 30% more fuel than gas.
I may try some ethanol this summer. I am running 60# mototrons now. I will try cranking the fuel pressure up a substantial amount & see what I can get out of them with the enthanol.
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