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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 General Tech Q&A > The Track

The Track At the Track with your TrailVoy

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  #1  
Old 10-13-2010, 11:28 PM
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2002 Chevy TrailBlazer LT
Light Pewter Metallic 4.2L I6 4X4
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Ran at the track tonite

Just figured some of you would be interested to know that i ran at the 1/4 tonight.. it was colddd around 40 degrees or so

Vehicle is as follows-

2002 Chevy Trailblazer
Inline 6 with 3.73s and G80
4x4 Model

Mods are as follows

Homemade PVC intake
Resonator Delete
Custom HP Tuned by Me
Cat Delete

I ran seven times tonight and the worst run i ever did was a 15.7 @ 89mph because i didnt even brake torque it or anything all I did was hit the gas when it turned green

Best Run is as follows, officially

RT- .521
60'- 2.382
330- 6.632
1/8-10.143
MPH-70.17
1000- 13.141
1/4- 15.663
MPH- 89.34

One thing i would like to note is that these times were done using General Grabber AT2 All Terrain Tires... AKA heavy, knobby tires.. not actual street tires, so take it with a grain of salt, im sure I could of done a tad better with a lighter and more practical tire setup
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  #2  
Old 10-13-2010, 11:54 PM
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2004 Chevy TrailBlazer LS
Graystone Metallic 4.2L I6 4X4
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Whoa, nice numbers !!

Best i got was a 16.1 and my seats were taken out and spare out as well.
It was almost 100* on the track though!

Must be the gears. i want 4.10 gears soo bad !
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  #3  
Old 10-14-2010, 12:02 AM
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Those poor tires lol. They brake loose at all ?
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  #4  
Old 10-14-2010, 12:12 AM
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Quote:
Originally Posted by gmdude2004 View Post
Those poor tires lol. They brake loose at all ?
I actually got it to wheel hop a little bit when i went balls to the wall and brake torqued the **** out of it

People give these motors a reputation for having no low end, when thats really not the case at all, its GM's poor tuning.. mine rips from 1200rpm... Stock these things have like 6 degrees of timing 800 - 1200... Mine has 18 and no knock... also the cam phase tables are all messed up... its advancing like 10 degrees at idle... mine is ZERO until 2000 rpm which also helped alot.. you dont need cam advance that low in the rpm band its made for high end operation
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  #5  
Old 10-14-2010, 09:01 AM
RedRocketZ28 RedRocketZ28 is offline
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They give them a bad rap for having no low end because they don't have any low end. That is prevelant in your 60' time. For not spinning off the line that 60' is horrid, but since it is in a heavy SUV, it is understandable.

Regardless, that is an impressive time for sure. Your truck runs hard. I went to the track Saturday night with the Camaro and my buddy with a stock LS1 GTO A4 was running high 14's @ 94-95 mph, ha. Needless to say, he was quite disappointed.
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  #6  
Old 10-14-2010, 10:19 AM
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Quote:
Originally Posted by Joe92T View Post
I actually got it to wheel hop a little bit when i went balls to the wall and brake torqued the **** out of it

People give these motors a reputation for having no low end, when thats really not the case at all, its GM's poor tuning.. mine rips from 1200rpm... Stock these things have like 6 degrees of timing 800 - 1200... Mine has 18 and no knock... also the cam phase tables are all messed up... its advancing like 10 degrees at idle... mine is ZERO until 2000 rpm which also helped alot.. you dont need cam advance that low in the rpm band its made for high end operation
It's not "poor tuning"... They're tuned exactly how they want them tuned... to feel "lazy" and under-stressed while grandma is putting around, and to soften the power delivery (especially in the lower RPM range) to be nicer to the transmission and rear end, to cut warranty costs... Literally, nearly everything is done for a reason...

Mike
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Old 10-14-2010, 10:39 AM
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Graphite Metallic 4.2L I6 4X4
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Quote:
Originally Posted by Joe92T View Post
Mods are as follows

Homemade PVC intake
Resonator Delete
Custom HP Tuned by Me
Cat Delete
I have all those mods but the cat delete. I am still working on the HP tuners tune. U mind sharing your tune?
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Old 10-14-2010, 02:20 PM
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Quote:
Originally Posted by RedRocketZ28 View Post
They give them a bad rap for having no low end because they don't have any low end. That is prevelant in your 60' time. For not spinning off the line that 60' is horrid, but since it is in a heavy SUV, it is understandable.

Regardless, that is an impressive time for sure. Your truck runs hard. I went to the track Saturday night with the Camaro and my buddy with a stock LS1 GTO A4 was running high 14's @ 94-95 mph, ha. Needless to say, he was quite disappointed.
I put up the same 60ft as my friend did in his brand new 2010 GMC Sierra 1500 LT.. 5.3 v8 with a GMP CAI, Custom Exhaust and also HP Tuned with no torque managenent, his also lags off the line a bit... His best time of the night was 15.4 @91
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  #9  
Old 10-14-2010, 02:33 PM
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Quote:
Originally Posted by Joe92T View Post
I put up the same 60ft as my friend did in his brand new 2010 GMC Sierra 1500 LT.. 5.3 v8 with a GMP CAI, Custom Exhaust and also HP Tuned with no torque managenent, his also lags off the line a bit... His best time of the night was 15.4 @91
Yeah, and he'll have a hell of a time with spinning tires with the front-heavy weight bias of the truck, where you can go WFO from the start...

Mike
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Old 10-14-2010, 02:49 PM
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Originally Posted by bartonmd View Post
Yeah, and he'll have a hell of a time with spinning tires with the front-heavy weight bias of the truck, where you can go WFO from the start...

Mike
No Spin last night, but anyway... Whatever the I6 lacks in low it makes up for up high... His truck shifts at 5600rpm, mine at 6500
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