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Old 06-18-2019, 08:24 PM   #1
race24x
 
Drives: 80 Z28 - 93 Z28 - 14 Camaro SS-RS
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Thinking of going Flex Fuel want advice

I have a Kraftwerks SC with 70mm pulley along with ZL1 fuel pump ADM FPCM and FIC 850cc injectors. I made 590RWHP at 55% duty cycle. I was looking to do the Flex Fuel DSX upgrade. What do you think of adding a BAP and the DSX kit. They say 30% so that would bring my injectors as far as I should go. Do you think I will need more than the BAP? This is probably going to be my last upgrade until I get a newer ZL1.
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Old 06-18-2019, 08:47 PM   #2
hammdo
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Get the DSX flex kit with aux pump. I did and haven't looked back. Have the ZL1 Pump, BAP, DSX updated FPCM (ADM should be fine).

I also have 1050x injectors on mine too. You may need to bump up to those...

-Don
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Old 06-18-2019, 09:10 PM   #3
race24x
 
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Even though my injectors are only at 55% now? I thought it added 30% so that would be 85% unless I misunderstood. That should be pretty good injector wise. However it sounds like you have a SC ZL1 pump modded FPCM BAP and still added a aux pump? Do you have cam headers etc. What kind of RWHP are you at?
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Old 06-18-2019, 11:50 PM   #4
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You’ll need room to grow. You can start with the 850s (I did) but as soon as you add boost, you’ll run out fast. When I pushed past 650 RWHP, it was very obvious I need more injector. I’m at the point again where I’ll need to consider 1300Xs as my next upgrade...

Just a word of caution... your 30% is an ‘estimate’, could be more or less. I’m at 95% without meth, 82-85% DC with meth at WOT...

-Don
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Old 06-19-2019, 02:35 AM   #5
John_C
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E85 takes a lot of pump and injector with boost.

I made 723 rwhp 93 pump and 760 rwhp E85.

I went with:
DSX flex fuel sensor
ID 1300x
ZL1 pump
DSX aux pump

If I'd known about it, I'd have done the DW400 pump instead of the ZL1 pump though.

https://www.deatschwerks.com/blog/de...00-pump-module

Just can't find them in stock anywhere....
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Old 06-19-2019, 08:40 AM   #6
race24x
 
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Would that single pump eliminate the need for a second pump or a BAP?
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Old 06-19-2019, 09:04 AM   #7
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If you get the DSX aux pump you won't need a bap. A injector upgrade is a solid idea as well. 850s on E85 would be very close to maxed out at your power level. We can get you a package deal on the sensor, the pump and some injectors if you like. We have some pretty solid deals on them.
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Old 06-19-2019, 11:55 AM   #8
John_C
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“Very conservative estimates 750 e85 and over 1,000 pump.”

https://youtu.be/P7qo_ATpPaQ
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Trick Flow GenX 255's with Polished PAC .660's and Ti-retainers
Texas Speed VVT 3.2 cam kit w/DoD Delete
Texas Speed 1.72:1 Roller Rocker Arm Set
AEM X-Series OBDII Widebands
Fuel Injector Clinic ID1300x Injectors
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