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05 colorado SBE 6.0/C480/4l80e 9.78@143 foot brake 3850lbs

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Old 03-21-2017, 03:05 PM
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http://www.lsxmag.com/features/car-f...ottom-end-lq4/
Old 03-21-2017, 03:27 PM
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Nitrous Express? I'm sure Nitrous Outlet won't be happy with that typo?

I thought it was the Holley Dominator??
Old 03-21-2017, 03:34 PM
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Guy that writes those seems very literate, and does a great job with wording… but he does seem to butcher the details! My write up was crazy inaccurate…but appreciated anyway.
Old 03-21-2017, 03:41 PM
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Haha they edited that quickly.
Old 03-21-2017, 04:24 PM
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Congrats on the the 1k+ hit man!


Tech's article isn't any better on facts lol

https://ls1tech.com/articles/ls-swap...-22-psi-boost/
Old 03-21-2017, 10:33 PM
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techs is pretty shameful considering this thread and my documentation in videos lol
Old 03-22-2017, 07:24 AM
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that tech article was horrible lol
Old 03-23-2017, 12:32 AM
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FP was on an ellipse dropping off up top, closed loop picking up the slack, i want to add a third 450 and make some passes on 800 tire and lockup and get kicked out and then maybe come back to the dyno to make 1200 and go out swinging
Old 03-23-2017, 01:55 AM
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Pvc cage. Do it
Old 03-23-2017, 07:00 AM
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Do you think it will hook on 800 at the track?
Old 03-23-2017, 09:07 AM
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Originally Posted by denmah
FP was on an ellipse dropping off up top, closed loop picking up the slack, i want to add a third 450 and make some passes on 800 tire and lockup and get kicked out and then maybe come back to the dyno to make 1200 and go out swinging
What was the AFR?
Peak boost? It sounded like it was gaining right before you lifted... and power hadn't yet rolled over either, was still on an incline.

Would you mind posting a data log and dyno graph (rpm as x axis), or a RaceRender version of the pulls?

Congrats BTW. And, you've certainly got the illness. Last week the dream was 1000, now 1200... I see 13, 14, & 15 in your future. Hahahaha
Old 03-23-2017, 02:51 PM
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Out of curiosity how much timing were you running on the nitrous pull?
Old 03-23-2017, 05:01 PM
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Pretty sure he said 9 degrees in one of the videos
Old 03-26-2017, 08:18 AM
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Originally Posted by forcd ind
Do you think it will hook on 800 at the track?
He s running the Holley system now, I wonder if he could really dial in the boost for "traction control" or assistance in the 60ft?
Old 03-26-2017, 09:15 AM
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Congrats! Amazing accomplishment.
Old 03-27-2017, 11:46 AM
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Originally Posted by baronsmith98
Out of curiosity how much timing were you running on the nitrous pull?
22lbs 13deg timing

both shots running -4deg on the hit fading to -2deg by 6k ish

but yes, approx 9deg of timing at 6600rpm ish on 22lbs and both kits
Old 03-27-2017, 01:06 PM
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After taking a peek at your tune, you're commanding a reduction in timing for IATs higher than 140. Not sure if you were seeing temps that high, but it'd show up on a datalog if in fact you were pulling more timing than you thought (Nitrous or not).
Old 03-27-2017, 01:10 PM
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Think it's been super cold on dyno days there....
Old 03-27-2017, 01:20 PM
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I'm guessing they've been low. Just thought I'd mention it.
Old 03-28-2017, 03:02 PM
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Since you already have 2 big intank pumps, have you considered an inline single “pressure booster”? You should have more than enough volume, you just need help with pressure. An inline pump would be easy to install, and provide a better pressure bump than adding another 450 in parallel I’d think?

We did this on the DSM builds all the time to get 90psi or so of fuel pressure and push stock injectors. Intank walbro pushing through an 044 as a pressure booster. I’d think the AEM 380 inline would be easyier to install and provide more of what your are looking for. Additional pressure bumps flow on small ID lines/rails. Additional parallel pumps mainly bumps volume… which is limited by your small line sizes.

You don’t even need the inline “booster pump” active for cruising. The in-tank pumps will push through it easy and you can activate it in boost only.

Just a thought!


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