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Old 12-02-2015, 02:31 PM   #15
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Enough to be border line on needing bigger than zl1 injectors.

Can anyone let you borrow a set to see they work well enough? Then again DC would be higher than I would like.

If cost is no concern, just throw some 65/85/100lb injectors in it and don't worry.
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Old 12-02-2015, 03:21 PM   #16
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Originally Posted by fif_gen_powa View Post
Flex fuel sensor is nice to have but not needed if you run 100% e85.
and what happens when you get a bad batch of e85 that only ends up being e30?

with the flex fuel sensor the car will automatically pull timing to keep the car safe since the fuel rating has dropped.
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Old 12-02-2015, 04:17 PM   #17
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Quote:
Originally Posted by Unreal View Post
Enough to be border line on needing bigger than zl1 injectors.

Can anyone let you borrow a set to see they work well enough? Then again DC would be higher than I would like.

If cost is no concern, just throw some 65/85/100lb injectors in it and don't worry.
Thanks, maybe I should try some 65's then. I'll share my results if folks are interested. Still buying parts though. I have the sensor.
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Old 12-02-2015, 04:22 PM   #18
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Hey I'm making 529hp/494tq on e85. About 15/15 less on 93. Don't have a big cam in my 416. I do have ported heads and a port matched fast Lsxr though. 1-7/8" headers.
Only pick up 15rwhp eh? Hmmm. How big is your cam, and are your stock heads and what compression?
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12.06@113 1.70 | + CD 3200 + 18" NT05R + RCR Intake + NE OTR + GPI Tune
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Old 12-02-2015, 04:39 PM   #19
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have a feeling your tuner has some good input and wouldn't want you near max on zl1 injectors. The free timing corn will make available in your setup has got to give ya some nice gains

Next up a little meth injection?
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Old 12-02-2015, 08:11 PM   #20
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Only pick up 15rwhp eh? Hmmm. How big is your cam, and are your stock heads and what compression?
Stock heads, just ported. 11.4:1 compression, 237/248 .637/.620 114+4 cam motion

Ryan tuned it and that's all it had. Bigger cam would probably give better results
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Old 12-02-2015, 08:31 PM   #21
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Nice power I bet the car is a beast.

Anymore real world experiences out there?
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12.06@113 1.70 | + CD 3200 + 18" NT05R + RCR Intake + NE OTR + GPI Tune
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Old 12-02-2015, 10:51 PM   #22
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I'm looking into an ls7 441 build after I pay off the car. I'd love to see 625-650+rwhp on e85 N/A. It's in my think tank for sure...
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Old 12-03-2015, 07:31 AM   #23
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I have the flex sensor, siemens 63lb injectors, a ZL1 fuel pump and an ADM FPCM.



No issues, feeds plenty of e85 in!

I asked ADM about using his e38 (SS) FPCM to suit a NA curve about this time last year and he said it was for boosted (LSA) conversions, probably wouldn't work NA. So that's good to confirm it does, thanks.
Do you have FRP data logs per chance?
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Old 12-03-2015, 08:39 AM   #24
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Hey John, for what its worth, I looked at my data logs from the last time I went to the track, and those Siemens 63lb injectors run at about 60% duty cycle at WOT.

pir4te, I don't have any logs with FRP data, but I can get it for you soon if you're interested. Just pm me
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Old 12-03-2015, 09:54 AM   #25
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and what happens when you get a bad batch of e85 that only ends up being e30?

with the flex fuel sensor the car will automatically pull timing to keep the car safe since the fuel rating has dropped.
Not only that, winter "e85" is typically e70 or so. My car is ~68-69% right now because of winter e85 compared to summer e85. I rather have the car adjust for that and have fueling spot on than "close enough".
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Old 12-03-2015, 09:56 AM   #26
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Originally Posted by Bodywerks View Post
I'm looking into an ls7 441 build after I pay off the car. I'd love to see 625-650+rwhp on e85 N/A. It's in my think tank for sure...
Buddy here in Phoenix has a e85 440CI ls7 (erl setup since his stock ls7 died) and makes a solid 625rwhp. Was ~580ish on pump.
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Old 12-03-2015, 11:06 AM   #27
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Would the flex fuel sensor adjust accordingly. Is it constantly adjusting?
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Old 12-03-2015, 11:46 AM   #28
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Would the flex fuel sensor adjust accordingly. Is it constantly adjusting?
yes it adjusts the whole time the car is running
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