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Old 03-26-2016, 05:01 PM   #1
700HorsepowerDaily
 
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Exclamation Trapping Low Speed With Big Power?

Ok guys, I've had my camaro for over a year now and finally got a daily so it was time to take the 5th gen to the track.
a little about the car:
LS3 w/ comp cam, valve springs
TR6060
D1SC Procharger running 9 PSI w/ 8 Rip pulley
McLeod RXT twin disk clutch
moser axles
methanol injection system
92lb fuel injectors
zl1 fuel pump
hurst short throw shifter
weld racing drag pack on Mickey Thompson E/T Streets

ok so here is the problem... August last year the car made 697 hp and 618 FT LBS on a dino jet dino. Then in December made 707 hp and 627 ft/lbs on a different dino in the colder weather.
I took it out to the track earlier this month and my best time was an 11.77 @ 120. Now I don't know about you but after comparing numbers with others on the forums, I am way off.
heres some problems I think it may be:
Spark plug blowout
belt slip
not enough fuel?
tune?
so along with those things, I have some questions. Can you hear belt slip? If it's tuned wrong, won't that affect power as well? I am thinking its not belt slip because the car just made big numbers but could something have gone wrong since then? heres my time slip info:
r/t .097
60 ft 2.0 (i know its slow, trying to get my launch down)
330 5.20
1/8 7.75
1/8 mph 96.98
1000 9.92
1/4 11.77
mph 120.67

mph ranged from 117-120
I just want to go fast like the rest of you so please leave your hate at home. This is the first boosted car I have ever messed with so I am trying to learn everything I can. Any help is greatly appreciated
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Old 03-26-2016, 05:41 PM   #2
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May get more responses if this was in the drag section. Mods may move it there to help you out...

-Don
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Old 03-26-2016, 05:43 PM   #3
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Originally Posted by hammdo View Post
May get more responses if this was in the drag section. Mods may move it there to help you out...

-Don
how do i move it Don?
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Old 03-26-2016, 05:46 PM   #4
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Ask the mods. They are the ones who move it. If you go to the main page, at the bottom it lists everyone logged on. If you see a name in red, that is a mod. PM them with your link to this thread and they can probably help...

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Old 03-26-2016, 06:59 PM   #5
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This is why people data log. It is difficult to pay attention to the boost, air/fuel, spark retard, etc while driving down the track. 120mph is netting about 530-550 whp my guess.
Iat temps could be getting high and pulling timing, air fuel may be off. All speculation without more data or a data log.
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Old 03-26-2016, 07:37 PM   #6
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I hate to say it but our times and power are very similar. I know why I am running those times. I don't beat the crap out of my clutch.

With your power and a M6, you should be running bias ply slicks. That and some seat time will improve your 60. After that, it is all in the shifts. We will never have times like the A6 as we can't shift as fast as a computer.

My times:
60 - 1.59
1/8 - 7.48 @ 98 mph
1/4 - 11.24 @ 129 mph
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Old 03-26-2016, 08:39 PM   #7
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You're about 5-7 mph slow. Where are you shifting? You want to be over 6K for your shifts and smooth. Short shifting will kill your speed.
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Old 03-26-2016, 09:40 PM   #8
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700 whp should net around 130mph from my experience
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Old 03-26-2016, 11:21 PM   #9
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Originally Posted by 2010SSRSM6 View Post
You're about 5-7 mph slow. Where are you shifting? You want to be over 6K for your shifts and smooth. Short shifting will kill your speed.
What do you mean by Short Shifting? Never heard that term before.
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Old 03-27-2016, 12:07 AM   #10
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What do you mean by Short Shifting? Never heard that term before.

Shifting at lower RPM's. Staying out of the power band by shifting too soon.




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Old 03-27-2016, 08:01 AM   #11
700HorsepowerDaily
 
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Quote:
Originally Posted by jrhagen View Post
I hate to say it but our times and power are very similar. I know why I am running those times. I don't beat the crap out of my clutch.

With your power and a M6, you should be running bias ply slicks. That and some seat time will improve your 60. After that, it is all in the shifts. We will never have times like the A6 as we can't shift as fast as a computer.

My times:
60 - 1.59
1/8 - 7.48 @ 98 mph
1/4 - 11.24 @ 129 mph
I'd be fine with a 129 trap speed. If we are similar power then I am way off from you. I was trapping 117 on some of the runs. I understand seat time and practice with shifting at the right shift points but 10-15 mph off because of that? I feel like there is underlying problems. Was hoping someone had the same setup with the same problem
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Old 03-27-2016, 08:06 AM   #12
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Originally Posted by Redlineviper View Post
700 whp should net around 130mph from my experience
I'd be cool with that! I'm way far off. Running about a 525 hp car for some reason.
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Old 03-27-2016, 08:12 AM   #13
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Old 03-27-2016, 09:39 AM   #14
700HorsepowerDaily
 
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Originally Posted by TOSTO RACING View Post
Check your torque management tables in your tune. My car trapped 123 first time out had no power at the track, but made great numbers on the dyno made 729 at the time but would mph 123 lol. We corrected the tables and it went 134 first pass last year,something to look at ,but best thing is to log it and see whats going on.
That's awesome news! I'm going to get it retuned and see if that makes a difference.
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