Racing my truck tonight - need your opinions
Oct 24, 2003 | 09:23 AM
#1
Thread Starter
Staging Lane
Joined: Jun 2002
Posts: 79
Likes: 0
From: Edgewood, MD
Racing my truck tonight - need your opinions
Just for fun I'm going to make a few passes in my 03 Silverado 4x4 tonight. I was wondering what's the best way to do so:
1. Auto 4WD
or
2. 4WH
In your experiences which setting has given you the best runs?
BTW, it's also a 4.8L stock so I'm figuring 16's with this air as cold as it is. Your thoughts and thanks in advance?!
1. Auto 4WD
or
2. 4WH
In your experiences which setting has given you the best runs?
BTW, it's also a 4.8L stock so I'm figuring 16's with this air as cold as it is. Your thoughts and thanks in advance?!
Oct 24, 2003 | 10:57 AM
#2
is that an ext cab?
in my truck i ran the best times with it in auto 4wd. in 2wd the thing will just barely peal out but that is enuff to slow it down.
i have alot of practice with my gtech and have come to trust it to within 2/10ths in the 1/4. the 60' times are always within 1/100. with about 100lbs of weight reduction i have ran a best of 15.4 on the street. with about 20runs in on diferent nights the worst ET i have seen is a 16.0(with 2 people in the truck).
now here is the wierd part. i only have one run in at the track but it was SLOW, weather was similar, altitude is only about 300' diferent, weight was less than ever(no gate). i ran a 16.7
, i forget to turn on the gtech but a run later in the night with a 100shot put it well within the 2/10ths that it always is. my current theory is that sitting in the staging lanes for 1/2hour ideling alowed it to get warmer than it ever was on the street, engauging the clutch fan and whatever other tuning things may have slowed it down from the extra heat.
going back tonight, got some electric fans and a cold tstat and am hoping for times similar to my street times, 15.5 i hope.
BTW, with a 100shot it is WAY better to launch in 4hi and then shift into 2wd about 50mph. i know your not running nitrous but for futrue reference at some point you will want to switch over to 4hi, the engaugement of the auto part slightly after you start to peal out is very harsh once you start to make some power.
in my truck i ran the best times with it in auto 4wd. in 2wd the thing will just barely peal out but that is enuff to slow it down.
i have alot of practice with my gtech and have come to trust it to within 2/10ths in the 1/4. the 60' times are always within 1/100. with about 100lbs of weight reduction i have ran a best of 15.4 on the street. with about 20runs in on diferent nights the worst ET i have seen is a 16.0(with 2 people in the truck).
now here is the wierd part. i only have one run in at the track but it was SLOW, weather was similar, altitude is only about 300' diferent, weight was less than ever(no gate). i ran a 16.7
, i forget to turn on the gtech but a run later in the night with a 100shot put it well within the 2/10ths that it always is. my current theory is that sitting in the staging lanes for 1/2hour ideling alowed it to get warmer than it ever was on the street, engauging the clutch fan and whatever other tuning things may have slowed it down from the extra heat.going back tonight, got some electric fans and a cold tstat and am hoping for times similar to my street times, 15.5 i hope.
BTW, with a 100shot it is WAY better to launch in 4hi and then shift into 2wd about 50mph. i know your not running nitrous but for futrue reference at some point you will want to switch over to 4hi, the engaugement of the auto part slightly after you start to peal out is very harsh once you start to make some power.
Oct 24, 2003 | 01:30 PM
#4
Originally Posted by kwkshift
A G-Tech isn't accurate at all. Use either a dyno or a 1/4 mile track to measure performance. If the clocks say 16.7 and the G-tech says 15.2, well the G-tech, as always, is waaay off.
Oct 24, 2003 | 01:51 PM
#5
Thread Starter
Staging Lane
Joined: Jun 2002
Posts: 79
Likes: 0
From: Edgewood, MD
Originally Posted by parish8
is that an ext cab?
in my truck i ran the best times with it in auto 4wd. in 2wd the thing will just barely peal out but that is enuff to slow it down.
i have alot of practice with my gtech and have come to trust it to within 2/10ths in the 1/4. the 60' times are always within 1/100. with about 100lbs of weight reduction i have ran a best of 15.4 on the street. with about 20runs in on diferent nights the worst ET i have seen is a 16.0(with 2 people in the truck).
now here is the wierd part. i only have one run in at the track but it was SLOW, weather was similar, altitude is only about 300' diferent, weight was less than ever(no gate). i ran a 16.7 , i forget to turn on the gtech but a run later in the night with a 100shot put it well within the 2/10ths that it always is. my current theory is that sitting in the staging lanes for 1/2hour ideling alowed it to get warmer than it ever was on the street, engauging the clutch fan and whatever other tuning things may have slowed it down from the extra heat.
going back tonight, got some electric fans and a cold tstat and am hoping for times similar to my street times, 15.5 i hope.
BTW, with a 100shot it is WAY better to launch in 4hi and then shift into 2wd about 50mph. i know your not running nitrous but for futrue reference at some point you will want to switch over to 4hi, the engaugement of the auto part slightly after you start to peal out is very harsh once you start to make some power.
in my truck i ran the best times with it in auto 4wd. in 2wd the thing will just barely peal out but that is enuff to slow it down.
i have alot of practice with my gtech and have come to trust it to within 2/10ths in the 1/4. the 60' times are always within 1/100. with about 100lbs of weight reduction i have ran a best of 15.4 on the street. with about 20runs in on diferent nights the worst ET i have seen is a 16.0(with 2 people in the truck).
now here is the wierd part. i only have one run in at the track but it was SLOW, weather was similar, altitude is only about 300' diferent, weight was less than ever(no gate). i ran a 16.7
, i forget to turn on the gtech but a run later in the night with a 100shot put it well within the 2/10ths that it always is. my current theory is that sitting in the staging lanes for 1/2hour ideling alowed it to get warmer than it ever was on the street, engauging the clutch fan and whatever other tuning things may have slowed it down from the extra heat.going back tonight, got some electric fans and a cold tstat and am hoping for times similar to my street times, 15.5 i hope.
BTW, with a 100shot it is WAY better to launch in 4hi and then shift into 2wd about 50mph. i know your not running nitrous but for futrue reference at some point you will want to switch over to 4hi, the engaugement of the auto part slightly after you start to peal out is very harsh once you start to make some power.
It's an ext.cab! I'm concerned about the auto 4wd too once the truck gets going. I'll give it shot and see what happens!
Oct 24, 2003 | 09:17 PM
#6
Truck addict
Joined: Apr 2003
Posts: 6,559
Likes: 0
From: Ocean Springs, MS
man, if you are gonna listen to one person on this board about makeing a truck go fast, (a 4x4 at that) listen to this guy. he knows what he is talking about. check out his website on his old truck....impressive doesn't measure up to what that truck was.
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