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Old 11-15-2003, 09:59 PM   #1
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Help after dyno run

Well I went to the dyno yesterday, and I installed a 4.2 kit about 2 weeks ago. I also installed some new big valved heads, shorty headers, a SPEC clutch, new flywheel and an adjustable clutch cable. The car definately has more power and you can feel it, but not like it's suppose to. I was expecting to get over 200 rwhp and atleast 240 tq. But to my surprise I only got up to 165 rwhp and 215 rwtq. I first thought my pushrods were too short and I was losing lift and duration on my cam. So I changed out the pushrods and now it still feels the same power wise. I'm attaching my dyno sheets and dyno info. Any ideas let me know, and as for my mods, just click on my link for my homepage. My mod list is at the bottom.
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Old 11-15-2003, 10:29 PM   #2
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Ok, I am retarted once more.......where is the homepage link?
I am assuming you have a built 4.2, meaning P&P heads intake ECT?

You can always get an O/R H-Pipe and see if that fixes it. :no:
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Old 11-15-2003, 10:43 PM   #3
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damn...same #'s as me (I have problems as well).

I wonder if we have something similar going on.
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Old 11-16-2003, 08:46 AM   #4
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I'd say get an adjustable length checker PR or
go to the adj. 1.8's we talked about. Justin Agee
had similar problems and did the exact same
thing but on a split port. (4.2 crank, etc. and BV heads)
He's having intake troubles (too small) as well.


A real tune would go a long way towards getting the HP too, Rob.
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Originally Posted by Flex:
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Old 11-16-2003, 11:16 AM   #5
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RGR,

Yeah, I was thinking that too, and also I forgot to ask about the timing. Is the timing the same on the 4.2 as the 3.8? Maybe I need a 4.2 computer???
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Old 11-16-2003, 11:18 AM   #6
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oh yeah oops, I forgot to add my sig, i'll fix that now and I already have an h-pipe
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DAMN Those are some old *** numbers!!! I need updated ones!!
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