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What happened to"Stops making power after 4800rpm on dyno!! " by VINCE

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Old 07-29-2008, 09:43 AM
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Originally Posted by Shaine
hey I think you are talking about the post I had put up I have been eliminating so many options its crazy everytime we think we know it happens again. its not just power falling off its 400+ hp then hits about 4,800 and sits there tell I get out of it because at 100% throttle it wants more rpm before it shifts it is all power then a wall if anybody might have an idea or same situation, question anything give me a call at (303)856-8370 ask for shane or leave a message
Do you have a plot of that you could post up? I was on a dynodynamics the other day that flatlined at 400 ftlbs but it ended up being an issue with the dyno.
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Old 07-29-2008, 10:54 AM
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So it's fixed?

What valve springs are you running? You changed the cam sometime this year? I had valve float with my old blower setup when I changed the cam from the 230/236 to the 236/246, and went to different springs and then it was fine.
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Old 07-29-2008, 11:22 AM
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I run a MAF and had to raise the fail frequency limit or it would suddenly cause the injectors to go lean.
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Old 07-29-2008, 12:08 PM
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Originally Posted by Pro Stock John
So it's fixed?

What valve springs are you running? You changed the cam sometime this year? I had valve float with my old blower setup when I changed the cam from the 230/236 to the 236/246, and went to different springs and then it was fine.
I am still running the Patriot Gold Extremes. I changed the cam last year. The issue was not valvetrain related. It was fuel related.
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Old 07-29-2008, 05:22 PM
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So what was it exactly?
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Old 07-30-2008, 11:04 PM
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Yes. What was it? Fuel Pressure Regulator not hooked up or diaphram in it bad? Kinked fuel line? Fuel line restricted? Not enough pump? Plugged up Fuel Filter?
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Old 09-18-2008, 01:17 PM
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Originally Posted by VINCE
I am still running the Patriot Gold Extremes. I changed the cam last year. The issue was not valvetrain related. It was fuel related.
I am having a similar issue... Could you please tell us what the fuel issue was?
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Old 09-18-2008, 01:51 PM
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Yeah Vince spill it. You're being secretive so maybe it's your fault?
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Old 09-18-2008, 04:19 PM
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ppppweeez dont do dis to me...

c'mon sweet t*tz, finish the story...was it a mouse nest in your intake?
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Old 09-18-2008, 04:53 PM
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LOL!!! It was fuel related. I had a bad fuse going to my fuel pump. Under load it would cut power to the fuel pump and when the load was gone it worked fine.
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Old 09-19-2008, 11:31 AM
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it's always something! glad to hear that nighmare is out of your life.
so hows she runnin?
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Old 09-19-2008, 11:38 AM
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goos to see it was fixed man!! so what kinda of power is it makeing now?
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Old 10-10-2008, 01:42 AM
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What ended up being the fix?
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Old 10-10-2008, 04:31 AM
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Originally Posted by Jimmy P
What ended up being the fix?
Post #30. Bob
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Old 10-10-2008, 09:38 AM
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Oh, I didn't notice there was a page 2 lol.
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