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Thread: First time on the dyno
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08-25-2012, 07:20 PM #1
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First time on the dyno
Well I finally got the car on the dyno for the first time,it was 95 degrees out and we made 7 runs.
[COLOR=#000000][FONT=Calibri]We had some valve float issues but all in all I was veryhappy with the runs.
Last edited by meissen; 09-25-2012 at 02:48 PM.
95 Black M6 Z28 (426rwhp/395rwtq)
355 LE H/C/I, TNT 8.8, Pacesetter LT's, TD's dynomax bullets, Weld RTS's, UMI, AFCO's DA, PST, Tuned by Redline Fab & Performance
06 Black Impala SS DD, K&N, trans cooler
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08-25-2012, 07:27 PM #2
"The Rock"
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397/387 is very respectable...
How were you seeing the valve float?
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1996 Camaro Z28: RIP 09/25/2016
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1985/1996GS clone: SOLD
1996 Impala SS H/C, LT, with true dual exhaust, 4.10s, lowered, with CPT trans, many cosmetic mods, and a whole lot more to come...
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08-25-2012, 10:17 PM #3
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Nice numbers - looks like it wanted to peak around 6k but the valvetrain cut it off early.
Originally Posted by 95SSCamaro
Should have another ~10rwhp in there!93 Medium Patriot Red Z28: Forged 383,GTP'd AFR 220s(@227ccs), LE .7xx" Billet SR,1.7 Shaftmounts,24x,Maxed Supervic,4150 TB. :12 Metallic Spark Black ZX14R: 1.5" drop, GP slipons, -2 Vortex rear. 152mph trap SWB, stock motor...now with Nitrous... :09 Victory Red LS3 Z51 Vette: Blackouts, muffler delete, sub. Purchased bone stock w/18k mi.
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08-25-2012, 10:41 PM #4
Long Live the Opti
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I like the results man!!! That's got to be a blast to drive!
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08-26-2012, 09:07 AM #5
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Nice numbers...
96 Trans Am LT1 A4......2 broken rods
94 Camaro Z28 LT1 M6 LTs & Y, 3" SLP DOTL catback, custom CAI, and LT4 crane 1.6 RR..Best time 13.65@ 103 2.11 60ft(still on autocross setup)
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08-26-2012, 11:16 AM #6
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Nice numbers.
97 firehawk m6 with a forged long rod 355 stock heads and intake soon to be upgraded to LE 21* tfs heads and a big asscam , rpm built level 5 t56 trans s60 with 4.30 gears umi suspension walbro pump and hot wire kit and a spinning best 12.36 @ 114 crap 60 foot.
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08-28-2012, 08:12 PM #7
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Not bad for a huge cam 236/244 .618/.617 110LSA I was amazed at the torque it made, o this is with LE1 heads too! Originally Posted by popo8
5700=6300 This is where it is occurring, it is really noticeable in the car.
95 Black M6 Z28 (426rwhp/395rwtq)
355 LE H/C/I, TNT 8.8, Pacesetter LT's, TD's dynomax bullets, Weld RTS's, UMI, AFCO's DA, PST, Tuned by Redline Fab & Performance
06 Black Impala SS DD, K&N, trans cooler
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08-28-2012, 11:58 PM #8
"The Rock"
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i mean... what defines it as valve float over blowing out spark or misfire. tryin to learn is all...
Larry (Popo8) Co-owner
LTXtech.com
Our BIG MOMENT @ the 2012 LTXshootout
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1996 Camaro Z28: RIP 09/25/2016
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1985/1996GS clone: SOLD
1996 Impala SS H/C, LT, with true dual exhaust, 4.10s, lowered, with CPT trans, many cosmetic mods, and a whole lot more to come...
2002 Caddilac EscaladeL CAI, lowered, 6.0 , AWD..
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09-05-2012, 06:18 PM #9
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Valve float occurs when the spring can't seat the valve before it opens again.
~Shane
94 Z M6 304hp/336tq
12.61 @ 109.7
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09-25-2012, 10:45 AM #10
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Originally Posted by 95SSCamaro
Well I finally got the car on the dyno for the first time,it was 95 degrees out and we made 7 runs.
We had some valve float issues but all in all I was veryhappy with the runs.
http://www.youtube.com/watch?v=0MVgzdOR9uc&feature=plcp
Uploaded with ImageShack.us
So if we assume only 85% of your power is getting to the pavement, you've got 467 hp at the crank (397hp/85% = 467) unless you think you're hooking up really well & are losing less than 15%
That would be (467hp/355ci = )1.3 horses per cubic inch which is pretty amazing.
I hope you don't mind, but I'm going to use your build as a template. Do you know what kind of compression you're running?
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