LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Guy claims to "pull" something at the back of the intake...

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Old 04-20-2004, 07:48 PM
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Question Guy claims to "pull" something at the back of the intake...

A friend of a friend with a 97 WS6 was telling the other less-educated LT1 guy that when he races, he would reach to the back of the intake and either pull out or on some device and he would see some sort of increase in power.

The other guy who was telling me this tried to show me what the part looked like on his car and what he poined to looked to be something with the fuel and it looked cyclindrical with some sort of line running into one end and out of the other. Anyone know what this may have been?
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Old 04-20-2004, 07:53 PM
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Nitrous purge valve?
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Old 04-20-2004, 07:57 PM
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Adjustable Fuel pressure regulator?
People have been known to see increases in power for a short time before the computer relearns the fuel system and changes things back to the way it likes.
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Old 04-20-2004, 08:10 PM
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If i had my guess ...........
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Old 04-20-2004, 09:03 PM
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I bet he pulls the vacuum line off the regulator. If the pump is making good pressure, it can raise the fuel rail pressure, effectively changing the injector constant from what is programmed in the PCM .
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Old 04-20-2004, 09:21 PM
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Which side of the engine was it on?
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Old 04-20-2004, 09:50 PM
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I was also thinking it was a FPR but wasn't sure what one looked like.




Originally posted by DonHood
Which side of the engine was it on?
Well on my buddy's car (not the mystery part guy's), it was for rthe most part centered although it looked as if it could be moved by just pushing it to the side.
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Old 04-20-2004, 09:56 PM
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its a secret horsepower module.
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Old 04-20-2004, 10:00 PM
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Did it look something like this?

Greendemon and Nateh were probably on the right track with their thoughts. I can't imagine it being that much of a help though...
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Old 04-20-2004, 10:07 PM
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Sounds like he was pulling your chain....
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Old 04-20-2004, 10:16 PM
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Originally posted by DonHood
Did it look something like this? ]
Yep, thats it. Thanks for clearing that up.

I can't imagine it being that much of a help though...
If the same thing that is happening as GreenDemon said, I can see a bit of power being made temporarily until the PCM catches on. WS6.com I believe it was saw something like 11rwhp and 14ft. Its just hard to believe if this is getting good results, temporarily or not, that I haven't seen anything on here about it.
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Old 04-20-2004, 11:08 PM
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sounds like he installed a performance flux capacitor
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Old 04-21-2004, 05:20 AM
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I bet it was the hydocilator!
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Old 05-01-2004, 02:24 AM
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Yeah the hydocilator, and you haven't heard much about it on here because we like to keep these secret HP making devices just that... a secret!

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Old 05-01-2004, 04:46 AM
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I used to unplug that line and hook up little nitrous canisters to it. Then I grew up and installed a blower.

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