One step closer to the Bolt-on LT1 record
08-18-2007, 10:35 PM
#1
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Join Date: Nov 2003
Location: West Linn, OR
Posts: 1,752
One step closer to the Bolt-on LT1 record
The weather was decent today and I wanted to tweek with my tune as well as tune the suspension so I hit a Test & Tune session at my local track...
I was happy when right off the trailer and todays baseline looked like this:
60' ... 1.676
330 .. 4.968
1/8 ... 7.752
MPH . 87.98
1000 10.150
1/4 ... 12.161
MPH . 112.64
A few changes got me to:
60' ... 1.655
330 .. 4.932
1/8 ... 7.704
MPH . 88.28
1000 10.100
1/4 ... 12.107
MPH . 112.76
Playing with it a little more got me to 12.0's, an by this point it was well into the afternoon and hotter:
60' ... 1.642
330 .. 4.921
1/8 ... 7.694
MPH . 88.36
1000 10.085
1/4 ... 12.088
MPH . 112.99
I followed that up with another new best of:
60' ... 1.639
330 .. 4.910
1/8 ... 7.684
MPH . 88.29
1000 10.076
1/4 ... 12.078
MPH . 113.16
Just another lightweight bolt-on LT1 car...
I was happy when right off the trailer and todays baseline looked like this:
60' ... 1.676
330 .. 4.968
1/8 ... 7.752
MPH . 87.98
1000 10.150
1/4 ... 12.161
MPH . 112.64
A few changes got me to:
60' ... 1.655
330 .. 4.932
1/8 ... 7.704
MPH . 88.28
1000 10.100
1/4 ... 12.107
MPH . 112.76
Playing with it a little more got me to 12.0's, an by this point it was well into the afternoon and hotter:
60' ... 1.642
330 .. 4.921
1/8 ... 7.694
MPH . 88.36
1000 10.085
1/4 ... 12.088
MPH . 112.99
I followed that up with another new best of:
60' ... 1.639
330 .. 4.910
1/8 ... 7.684
MPH . 88.29
1000 10.076
1/4 ... 12.078
MPH . 113.16
Just another lightweight bolt-on LT1 car...
Last edited by 1SlowFormula; 08-18-2007 at 11:05 PM.
08-19-2007, 12:15 AM
#4
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Join Date: Nov 2003
Location: West Linn, OR
Posts: 1,752
08-19-2007, 08:48 AM
#5
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Join Date: Apr 2000
Posts: 1,444
The last time I weighed it we were at 3190 with me in the car, that was a few weeks ago, I think today it might have been +- 5# today depending on fuel level. The car itself is about 2975 depending on fuel level, and I try to only keep between .5 - 1.5 gal. in the tank, but one time today I lost track of the number of runs I had and ran out of gas in the staging lanes, with keeping it that low the gage is alway on empty...
Wow, that's light LOL.
I was looking at some of your pics on another site, nice work man.
Mine's a pig compared to that.
I worry a little about you keeping the tank that low, it seems like the fuel pump might overheat.
Then again, that's an extra 10-20lbs you don't have to lug around.
(I run with about 4gal)
Great times though. keep up the good work
08-19-2007, 12:54 PM
#7
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Join Date: Nov 2003
Location: West Linn, OR
Posts: 1,752
For a little more then a year and a half now it has been stuck at 11.805 @ 113.96 set by Shon Herron of http://www.herronperformance.com one of the boards sponsors...
I wish mine was that light, then she'd be on the bumper for sure. Nice times for the mods.
08-20-2007, 07:45 PM
#10
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Join Date: Nov 2003
Location: West Linn, OR
Posts: 1,752
Thanks guys...Randy - what weight reduction have you done?
08-21-2007, 09:51 AM
#11
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Join Date: Oct 1998
Location: Engelhard, N.C.
Posts: 535
just the simple stuff, front bumper support, carpet, seats, and little things. I'm about 235lbs, so that puts the car at around 3150, so if I could knock another 150lbs off I'd be happy. Just like it sits it should run high 6.60's this fall and I think I need to have it retuned again, it's a tad lean for what I need.
Randy
Randy
08-25-2007, 08:21 PM
#12
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Join Date: Nov 2003
Location: West Linn, OR
Posts: 1,752
Ok I was getting the car ready for my race tomorrow, and decided to change the oil since I honestly don't remember when I last did it, well I was working off the 3000 miles thing but forgot that I don't drive the car on the street anymore... 
So I decided to try royal purple, it is actually purple oil 
, and when changing it the old stuff was black, and when I pulled off the oil filter I found that it was the same one in there when I installed the headers last year in May because there are still marks on it from the header install...
I also checked my fuel filter, and it was pretty dirty too, and realize it hasn't been changed in over 4 years...
I guess we'll see what tomorrow holds since I actually did some maintenance on this damn car, I wonder if this would be enough for 11's, I guess only the weather will tell...
So I decided to try royal purple, it is actually purple oil , and when changing it the old stuff was black, and when I pulled off the oil filter I found that it was the same one in there when I installed the headers last year in May because there are still marks on it from the header install... I also checked my fuel filter, and it was pretty dirty too, and realize it hasn't been changed in over 4 years...
I guess we'll see what tomorrow holds since I actually did some maintenance on this damn car, I wonder if this would be enough for 11's, I guess only the weather will tell...
08-26-2007, 06:27 AM
#13
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Join Date: Jul 1998
Location: Charlotte,MI USA
Posts: 6,249
Ok I was getting the car ready for my race tomorrow, and decided to change the oil since I honestly don't remember when I last did it, well I was working off the 3000 miles thing but forgot that I don't drive the car on the street anymore... So I decided to try royal purple, it is actually purple oil , and when changing it the old stuff was black, and when I pulled off the oil filter I found that it was the same one in there when I installed the headers last year in May because there are still marks on it from the header install...
I also checked my fuel filter, and it was pretty dirty too, and realize it hasn't been changed in over 4 years...
I guess we'll see what tomorrow holds since I actually did some maintenance on this damn car, I wonder if this would be enough for 11's, I guess only the weather will tell...
So I decided to try royal purple, it is actually purple oil , and when changing it the old stuff was black, and when I pulled off the oil filter I found that it was the same one in there when I installed the headers last year in May because there are still marks on it from the header install... I also checked my fuel filter, and it was pretty dirty too, and realize it hasn't been changed in over 4 years...
I guess we'll see what tomorrow holds since I actually did some maintenance on this damn car, I wonder if this would be enough for 11's, I guess only the weather will tell...
08-26-2007, 11:28 AM
#14
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Join Date: Mar 2006
Location: Haverhill MA
Posts: 2,307
I pulled the pan this last winter after running RP oil and will never use it again. It had an 1/8'' of black coating on the windage tray and the pan bottom after just 2 seasons of using it. Keep in mind that my car goes one season on the oil, that's 100 miles. Never had that with other oils.
