More progress: 346cid - 10.89 @ 129 (1850' DA)
09-08-2006, 10:57 PM
#1
More progress: 346cid - 10.89 @ 129 (1850' DA) We went to the track tonight to do some more testing and the weather definitely went to crap. Track temps hovered around 85 degrees most of the afternoon, pressure was a pathetic 29.90 and the humidity was high. Went to the track with the mindset to make a couple of soft passes and than start laying down the hammer once we have had a few good passes under our belt with the new setup. Tonight Density altitude was very very high 1850'. Recap car: 346", 11 degree heads, pump gas.
First pass, line lock wouldn't engage so we had to stage on cold tires. The tires lit up as soon as the clutch came out, pedaled a couple of times and ran it out to a 11.1 @ 128 shifting @ 7400. A/F was 12.7:1 and timing was 26-27 degrees. For the next pass we pulled 4% fuel and a couple of degrees of timing shooting for 13.1:1 A/F.
Second pass, found out the linelock wire was cut from last weeks pulley explosion so we wired it up in the staging lanes. For some reason it still didn't want to hold so we did a mini rolling burnout and staged the car. Launched alot easier than normal and spun, went a pathetic 1.69 60' and ran it out to a 10.89 @ 129. The car cut off as soon as I crossed the line and had a handful stopping it on the big end. A buddy came down and towed us back to the trailer. The car wouldn't start and threw alot of codes.
Doing alittle looking the MAP sensor had been rubbing the firewall and cracked the housing so we loaded it and went home. All and all we're happy, 129 is a big MPH for 1850', the ET will come once we solve the linelock problem.
First pass, line lock wouldn't engage so we had to stage on cold tires. The tires lit up as soon as the clutch came out, pedaled a couple of times and ran it out to a 11.1 @ 128 shifting @ 7400. A/F was 12.7:1 and timing was 26-27 degrees. For the next pass we pulled 4% fuel and a couple of degrees of timing shooting for 13.1:1 A/F.
Second pass, found out the linelock wire was cut from last weeks pulley explosion so we wired it up in the staging lanes. For some reason it still didn't want to hold so we did a mini rolling burnout and staged the car. Launched alot easier than normal and spun, went a pathetic 1.69 60' and ran it out to a 10.89 @ 129. The car cut off as soon as I crossed the line and had a handful stopping it on the big end. A buddy came down and towed us back to the trailer. The car wouldn't start and threw alot of codes.
Doing alittle looking the MAP sensor had been rubbing the firewall and cracked the housing so we loaded it and went home. All and all we're happy, 129 is a big MPH for 1850', the ET will come once we solve the linelock problem.
09-09-2006, 10:26 AM
#6
Nice times Phil. I figured with 12.5:1 SCR and 9.45:1 DCR, you'd spring for a few gallons on 104 unleaded. I can't believe you're doing all this on 93 octane? 
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
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09-09-2006, 11:11 AM
#8
Originally Posted by TOSTO RACING
good job sounds like it will fly 129 is killer mph
How do you like your new car? 
09-09-2006, 02:19 PM
#11
Thanks guys, I think we're going to try some 104 octane and more timing, we pulled 4 degrees on the 2nd pass and the car felt flat but did more MPH. We're going to switch out the 1 3/4" to 1 7/8" with high flow merge collectors. Not sure if they will help or hurt but I can tell you the exhaust port is wider than my current header.
Phil
Phil