EuG

The only change from before was I had off-road straight pipes changed to an off-road X-pipe and a retune. (A/F got leaner after X-pipe – that’s why retune was needed)
Check it out:
<img src="http://www.agrnet.com:8888/Dyno/Dyno436ci496rwHP481rwTQ.jpg" alt=" - " />

Not bad I think for full exhaust with mufflers <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
I got the dyno data, so I’ll try to some overlays later on <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />

John B

iTrader: (10)

Excellent EuG <img border="0" alt="[hail]" title="" src="graemlins/gr_hail.gif" /> I knew that your exhaust was restricting your true potential! What was your final A/F at peak HP? I think I would have stayed on the dyno and tweaked the A/F and timing very incrementally to squeeze out 4 more HP but then I am a greedy bastard too <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> Congrat's <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />

xp3nd4bl3

Schweet! <img border="0" alt="[hail]" title="" src="graemlins/gr_hail.gif" />

CHRISPY

AWESOME <img border="0" title="" alt="[Cool]" src="gr_images/icons/cool.gif" />
Cheers,
Chris

masterdill

iTrader: (2)

man that has to be fun to drive <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

JS

iTrader: (4)

Not bad????
Thats incredable power for a true street setup...
Your car is very impressive Gene...

JS

Classic

iTrader: (3)

You suck - I'm stuck down here in the land of 320hp. J/K. Very nice numbers, especially through a full exhaust. I don't think I would be embarrassed to drive that ocasionally <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

Just get those extra 4 ponies.

EuG

Thanks guys <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" />

The specs in case somebody is wondering are:

</font>

• <font size="2" face="Verdana, Helvetica, sans-serif">ARE 436ci (4.1”bore x 4.125” stroke, aluminum bock)</font></li>
• <font size="2" face="Verdana, Helvetica, sans-serif">10.9:1 CR </font></li>
• <font size="2" face="Verdana, Helvetica, sans-serif"> 6.0 (LQ9) heads</font></li>
• <font size="2" face="Verdana, Helvetica, sans-serif">240/244 .608"/.612" lift, 114LS cam</font></li>
• <font size="2" face="Verdana, Helvetica, sans-serif">TPIS headers, Mufflex 3” full exhaust with Off-road X pipe and SpinTech mufflers</font></li>

<font size="2" face="Verdana, Helvetica, sans-serif">Here’s the comparison of straight pipes Vs. X-pipe:
(couldn’t find the 485rwHP run, so I used this 481rwHP, but the TQ curve is almost identical so)
<img src="http://www.agrnet.com:8888/Dyno/XPipeVsStraighPipes.jpg" alt=" - " />

Looks like it picked a LOT of the bottom end, lost some in the mid range and picked up on the top
Could some tuning variations that effected the shape a bit as well…

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">I think I would have stayed on the dyno and tweaked the A/F and timing very incrementally to squeeze out 4 more HP but then I am a greedy bastard too</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif"> </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Just get those extra 4 ponies.</font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">LOL I’ll just re-dyno 5K miles later with lighter oil after the motor lessens up and see if I pick up anything LOL

John B

iTrader: (10)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">LOL I’ll just re-dyno 5K miles later with lighter oil after the motor lessens up and see if I pick up anything LOL </font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Just wait until Dec/Jan and re-dyno...with the cold air you'll be guaranteed at least 4 more SAE corrected RWHP. For some reason even though the dyno's correct for temperature people get their best numbers in the winter <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

EuG

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Just wait until Dec/Jan and re-dyno...with the cold air you'll be guaranteed at least 4 more SAE corrected RWHP. For some reason even though the dyno's correct for temperature people get their best numbers in the winter </font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">LOL True True I guess that’s what you’d call “Dyno tricks” LOL

FYI: I just looked and the temp during the run was: 72Deg, CF = .97
Actual HP made was 512/498, STD: 519/505

Can I say my car makes ~600BHP? LOL <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />