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Old 07-04-2014, 10:49 AM   #197
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I'm pretty sure if you don't change the tune, it will not ramp the pump up like it is supposed to. Basically, they swapped it for no reason.


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Ok I get that. But my point was you should be able to swap it and drive the car, just not expect the fuel pressure to be any different?

Reason I ask is I want to be able to drive the car to the tuners if needs be.

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adm module? I didn't see it is that the same as the kenne bell boosta pump?
No. The KB BAP is what I have on mine. The module is different. Not sure in what way but it is.
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Old 07-04-2014, 03:30 PM   #198
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Ok I get that. But my point was you should be able to swap it and drive the car, just not expect the fuel pressure to be any different?



Reason I ask is I want to be able to drive the car to the tuners if needs be.



No. The KB BAP is what I have on mine. The module is different. Not sure in what way but it is.

Yup, you can drive the car after the swap. I just don't think it will be able to ramp up without the tune changing.


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Old 07-04-2014, 03:39 PM   #199
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Yup, you can drive the car after the swap. I just don't think it will be able to ramp up without the tune changing.


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Cool. Ya, I just would like to be able to ease it to the tuners. Comporession is a little lower and cam is a bit bigger so I might not be able to anyway. Plus my injectors I can swap out when I get to the tuners.

I can trailer it if I have to but would rather not have to. lol
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Old 07-04-2014, 04:54 PM   #200
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There is nothing to change in the tune unless you change the module also. Running just the ZL1 pump, you just drop it in and go.
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Old 07-04-2014, 05:10 PM   #201
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Seems so simple but there is a bit to think about.

Let me set it straight. Correct me if I'm wrong on any of these.

All of these are ZL1 swapping into an SS fuel pump.

ZL1 pump swap with no tune. Pump will run same as stock pump. No more flow/pressure?

ZL1 pump swap with tune? More flow/pressure?

ZL1 pump swap with a BAP and no tune? What will the BAP do at this point?

ZL1 pump with tune and BAP? Should be about 50% more flow.

ZL1 swap with FPCM swap and tune? Obviously the best but is it more flow than the BAP?

Obviously all are WOT full run.

I wish I knew what exactly the FPCM was benefiting. If Lingenfelter uses a KB BAP with it then it must be pretty decent.

NO, not at 800 crank power but surely 700?

What does this mean?

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• Pulse-width modulated, eliminates need for conventional pressure regulator
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Old 07-04-2014, 05:16 PM   #202
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Feel free to tell me to piss off. I know I can be hard headed.
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Old 07-04-2014, 05:17 PM   #203
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Zl1 pump in stock SS: modest increase in flow. Not pressure.
Zl1 pump with module and no tune: same as above.
Zl1 pump without module and tune or no tune: same as above.
Zl1 pump with module and tune: the ADM module allows PWM modulation of the pump to increase flow and pressure as demand increases, as in the factory application.
ZL1 pump with BAP: the BAP increases VOLTAGE with a boost reference internal to the BAP.
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Old 07-04-2014, 05:22 PM   #204
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Damn. Quick response. I appreciate it.

Well I guess I may do a module but first try and see if the BAP keeps up.

ZL1 pump is already in and BAP is already there so I should have some good flow once tuned. If not I"ll do the ADM module. There is another one out there too that my builder told me about.

JMS Powermax fuel pump booster.
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Old 07-04-2014, 05:29 PM   #205
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The ZL1/BAP will probably flow more than a ZL1/ADM module combo. I've never personally seen a ZL1 pump with both a module and BAP. I'm definitely not saying it is really a big deal, but some I have dealt with were concerned with pump life at the higher voltages produced by the BAP, so the module is an option for those people.
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Old 07-05-2014, 08:00 AM   #206
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ADM FPCM, when car is tuned for it, boosts pressure at 4K rpm and above. It is a modified ZL-1 FPCM. Without the tune, it behaves like an OE FPCM with no benefit.

There were numerous threads with HPT logs that show fuel pressure increases. I use the ZL1 pump, ADM FPCM, and KB BAP. KB BAP w/OE SS pump, couldn't keep up fuel pressure at 10 PSI boost with my KB 2.8. Mine was dropping to 48-49 PSI. Left the BAP since it was pre-wired in the trunk. Added the pump and FPCM and everything is good. Not planning to go over 650 RWHP, the suggested safe limit.
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Old 07-05-2014, 03:17 PM   #207
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Quote:
Originally Posted by 2012LS3VERT View Post
The ZL1/BAP will probably flow more than a ZL1/ADM module combo. I've never personally seen a ZL1 pump with both a module and BAP. I'm definitely not saying it is really a big deal, but some I have dealt with were concerned with pump life at the higher voltages produced by the BAP, so the module is an option for those people.
Longer life is no big deal to me because I cut the access panel. It's literally a 25 minute job to swap.

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ADM FPCM, when car is tuned for it, boosts pressure at 4K rpm and above. It is a modified ZL-1 FPCM. Without the tune, it behaves like an OE FPCM with no benefit.

There were numerous threads with HPT logs that show fuel pressure increases. I use the ZL1 pump, ADM FPCM, and KB BAP. KB BAP w/OE SS pump, couldn't keep up fuel pressure at 10 PSI boost with my KB 2.8. Mine was dropping to 48-49 PSI. Left the BAP since it was pre-wired in the trunk. Added the pump and FPCM and everything is good. Not planning to go over 650 RWHP, the suggested safe limit.
Do you mean you couldn't keep up BEFORE the ZL1 pump.

That's where I was dropping to the same 45 to 49 pressure before. But I'll have more power now. Not sure how much. I'm guessing about 100 hp crank.
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Old 07-05-2014, 04:11 PM   #208
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Longer life is no big deal to me because I cut the access panel. It's literally a 25 minute job to swap.

Do you mean you couldn't keep up BEFORE the ZL1 pump.

That's where I was dropping to the same 45 to 49 pressure before. But I'll have more power now. Not sure how much. I'm guessing about 100 hp crank.
I cut a panel also. What are you estimating your total power to be at? And at what boost pressure?
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Old 07-05-2014, 05:50 PM   #209
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I cut a panel also. What are you estimating your total power to be at? And at what boost pressure?
I'm thinking 12 psi and somewhere around 750 crank power.

That's a really rough estimate.

Before the cam failed it was 8.5 psi boost with a bit smaller cam and I've lowered the compression by .2:1 so I'm only guessing at the power level.

Before it was 560 whp 560 wtq. so around 650+ crank power.
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Old 07-05-2014, 07:48 PM   #210
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You should be good. You just need the fuel setup to provide enough fuel to provide about 70 psi of rail pressure and enough volume for your motor. The ZL1 pump and BAP should do that.
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