how to build and hpop fooler? - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 17 (permalink) Old 04-15-2006, 06:29 PM Thread Starter
 
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how to build and hpop fooler?

i need to know what resistor to use to trick the hpop ito thinking it doesnt have enough pressure and bumping it up to the point of lobe idleing. this is for sled pulling purposes only.
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post #2 of 17 (permalink) Old 04-15-2006, 07:08 PM
 
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The sensor I use the 'trick the HPOP into thinking it doesn't have enough pressure' is a Dp-Tuner.

What exactly are you talking about.
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post #3 of 17 (permalink) Old 04-15-2006, 08:07 PM
 
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well i have used a 10k ohm one. It idles somewhat like a big block with a mild cam, i have heard that if you go with different values. (lower resistance??) that you get an extremely "cammy" idle, and the engine skip fires excessively like a big block with loads of cam, basically it advances the timing a whole hell of a lot.

I suppose you could get your self a 7.5k ohm 1/2 watt resistor, and a 12.5 or so one, and just try them both. I have heard of people using as high at a 15k and as low as a 3.5 k

Take that with a grain of salt though, my info might not be gospel truth, as i have only used 10k....
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post #4 of 17 (permalink) Old 04-16-2006, 02:13 AM
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i go as low as 3.3K, my truck doesnt lope till around 6k, i have a low hpop pressure problem stock...

2006 F350 XLT 4x4
ARP Studs, Blocked EGR Cooler, MBRP 304SS Cool Duals, 03 Turbo, Coolant Filter Kit, PCM Flashed Back & Innovative Extreme Tunes - 13.3 @ 99
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post #5 of 17 (permalink) Old 04-16-2006, 03:32 AM
 
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Quote:
Originally Posted by dieselpro12
i need to know what resistor to use to trick the hpop ito thinking it doesnt have enough pressure and bumping it up to the point of lobe idleing. this is for sled pulling purposes only.

I have built the following for a couple of guys that do sled pulling:

A special version of the 18K+ that allows you to increase the pressure and keep it at max.
A lock/unlock Torque conevrter module with 3 LED's. The Idea here is to keep the PCM from locking the TC and bogging the truck down during a pull.

Let me if I can be of any help.


05/2009 F350 2WD CC DUALLY EBONY (Inside/Out) dropped 3/5 on 305/45-22 - dubbed "Cat Woman"
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post #6 of 17 (permalink) Old 04-16-2006, 05:17 AM
 
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i was actually unde rth eunderstanding that lowering the resistance of the 10k mod increased the hpop by fooling it that it was lower, rather than giving it more resistance.
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post #7 of 17 (permalink) Old 04-16-2006, 05:28 AM
 
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Quote:
Originally Posted by dfuser
I have built the following for a couple of guys that do sled pulling:

A special version of the 18K+ that allows you to increase the pressure and keep it at max.
A lock/unlock Torque conevrter module with 3 LED's. The Idea here is to keep the PCM from locking the TC and bogging the truck down during a pull.

Let me if I can be of any help.
Is that special 18k anything like the one I had you special build for me a while back?

Hammer
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post #8 of 17 (permalink) Old 04-16-2006, 09:18 PM
 
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Quote:
Originally Posted by TheHammer69
Is that special 18k anything like the one I had you special build for me a while back?

Hammer
Yup....Since I built you one, I had a few more requests for the same thing!


05/2009 F350 2WD CC DUALLY EBONY (Inside/Out) dropped 3/5 on 305/45-22 - dubbed "Cat Woman"
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post #9 of 17 (permalink) Old 04-18-2006, 09:34 PM
 
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With our SP Stage I SE we can write a tune to the chip that will far surpass the controllability of any analog device. IF you want to jack up your pressure for drags or sleds, you can do so, if you want to pull it down for whatever reason you can do so as well.

http://www.spdiesel.com/remote/remotesheetS1SE.jpg

You can try and swap resistors on the fly like that or you can push buttons.
:snipersmilie:
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post #10 of 17 (permalink) Old 04-21-2006, 03:59 PM
 
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You can use a simle POT from radio shack in place of the fixed 10K resisiter, this will give ya range of every any resistance from 0-(whatever value your pot is). The 10K doesn't advance timing, that would be the EOT mod.

Neal
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