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The Official Dyno Thread 2015

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Old 11-24-2014, 12:24 PM
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Originally Posted by yellowsupercharged06

how are those IAT's looking after a pull or two ?

im looking at going the same route as you with a 2.6. Im on a 2.8 now, same setup as you minus the ported blower.

Is that with Arm's xmas tree port ?
Highest I've seen is around 142° after a pull, but then it drops quickly. And yes I have Arm's port on the blower
Old 11-29-2014, 12:30 PM
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370 318...
Old 11-29-2014, 01:27 PM
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Originally Posted by freakta
370 318...
On race gas?
Old 11-29-2014, 01:59 PM
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It's a mix of 112 and 93. About 40% 112 60% 93
388hp 321tq
Old 11-29-2014, 07:24 PM
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If you're making that kind of power on 40/60 race gas Id like to see your build list. Either hell of a build no one else has done or happy dyno haha.
Old 11-29-2014, 07:54 PM
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It's not a happy dyno. The Ferrari that was before me barely broke 300
Old 11-29-2014, 07:59 PM
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Lay out the build list if you wouldn't mind

Last edited by Bluelightning; 11-29-2014 at 08:04 PM.
Old 11-29-2014, 08:01 PM
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2.359l lsj 10.5:1 compression
forged everything
race ported head
zzp stage 3 cams
tvs 2.5 pulley 16psi
bunch of other stuff
Old 11-29-2014, 08:06 PM
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16psi on a 2.5" pulley?......
Old 11-29-2014, 08:10 PM
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The engine flows a lot of air
Old 11-29-2014, 08:22 PM
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Well hopefully you can rip the 1320 and it will agree. Just a little skeptical is all. But wicked build regardless man. If it's actually making the power the dyno says on only 40% race gas it will haul ass down the 1/4 mile on kill.
Old 11-29-2014, 08:24 PM
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I'm really excited to get to the track
Old 11-29-2014, 10:08 PM
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[IMG][/IMG]
Cobalt SS LSJ Stroker motor built by SMG Motoring…:
Old 12-01-2014, 12:15 PM
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Seems legit. Dustin and I were discussing it, and the build looks perfect for an SC setup. 400 will be a cake walk with the right fuel, and then some.
Old 12-02-2014, 07:20 AM
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This is why we never get anywhere.... people post their numbers with a good build to back it up and people call BS.

Just because something hasnt been done on .net or in the past doesnt mean it can't happen.

Great numbers freakta and nice build.
Old 12-02-2014, 08:24 AM
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It's plateauing rather quickly

conservative on the top end? or you trying to keep the exhaust quiet?
Old 12-02-2014, 10:33 AM
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Originally Posted by Staged07SS
This is why we never get anywhere.... people post their numbers with a good build to back it up and people call BS.

Just because something hasnt been done on .net or in the past doesnt mean it can't happen.

Great numbers freakta and nice build.
I haven't seen anyone call BS? If the car is making this kind of power on 40% race gas that's fantastic. Would just like to see if the 1320 backs it up to varify. Not many people have rolled a 2.4 TVS so who knows.
Old 12-02-2014, 10:48 AM
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Originally Posted by Bluelightning
I haven't seen anyone call BS? If the car is making this kind of power on 40% race gas that's fantastic. Would just like to see if the 1320 backs it up to varify. Not many people have rolled a 2.4 TVS so who knows.
It was a general statement put kinda pertained to you doubting him....

If you knew his build u would know his car has more than enough potential to make that kinda power.

I'm just tired of seeing people doubt others builds just because it hasnt been done before or it hasnt been seen on this site.

For all we know, there could be a 400whp (w/o nitrous) TVS lsj out there that never joined a Cobalt site.
Old 12-02-2014, 11:07 AM
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With just the general statement that was posted before saying "huge build" and then saying on a splash of race gas it made 388 I was also skeptical. Details make all the difference, and it is much more believable now.

He is proving what we have all been learning about SC setups but not many people have done yet, at least for long. Higher CR and more displacement is the way to make power on a blower car. Like I said, with some adequate fuel that thing will see 400+ pretty easily. It does seem to flatten out a bit early, but as Steve said that can be in the tuning or the exhaust could be getting restrictive.
Old 12-02-2014, 11:16 AM
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Originally Posted by InfraRedline
With just the general statement that was posted before saying "huge build" and then saying on a splash of race gas it made 388 I was also skeptical. Details make all the difference, and it is much more believable now.

He is proving what we have all been learning about SC setups but not many people have done yet, at least for long. Higher CR and more displacement is the way to make power on a blower car. Like I said, with some adequate fuel that thing will see 400+ pretty easily. It does seem to flatten out a bit early, but as Steve said that can be in the tuning or the exhaust could be getting restrictive.
He's had a build thread up for years, so I assumed most old timers knew what he had done to the car. That's why I knew his numbers were on par when I saw the graph.

but I agree, he took a good route for making nice power with a blower setup.
Old 12-02-2014, 11:23 AM
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Freakta!
Circa 2010-11... First to successfully make a A2A intake manifold/intercooler combo bolted to an LSJ (2.5 m62 pulley)

Me
Circa 2011
First to Design, dyno test and fail the A2A combo w/ the MP90

His car has come such a long way...

Freakta: building an engine....

1 year later...

Freakta: Ya... Life happened...

Few years later

Freakta: 388WHP... splash of race gas
Old 12-02-2014, 11:28 AM
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Well I remembered him saying a lot of details had changed (and he just updated them) so I didn't know what was all going into the car after all the changes and all the years. Just glad its back on the road and ready to be cranked up.
Old 12-02-2014, 11:45 AM
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Originally Posted by Staged07SS
It was a general statement put kinda pertained to you doubting him....

If you knew his build u would know his car has more than enough potential to make that kinda power.

I'm just tired of seeing people doubt others builds just because it hasnt been done before or it hasnt been seen on this site.

For all we know, there could be a 400whp (w/o nitrous) TVS lsj out there that never joined a Cobalt site.
I totally get what you're saying. I actually didn't know the full specs of this build to be honest. At the time he made his build thread I was ***** deep in my own car so I guess I never really paid attention lol. My apologies with my negative attitude haha. I just did a quick read. Running the air to air makes a little more sense with the lower boost levels. I remember chatting with Flatgod when he did his air to air and was only seeing 19psi on a 2.5" pulley on a stock motor.
Old 12-02-2014, 11:51 AM
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Group hug.... no homo lol.
Old 12-02-2014, 12:31 PM
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Just looking you actually haven't thrown me at the bottom of the LSJ turbo list yet Jeff lol


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