The anatomy of a 12.62 108.45 pass...

[RobAGD]

OK I had a rather good day at Maryland Internation Raceway to day we were blessed with some out standing air. I was kind of rushed so I was not in my typicaly fighting trim but I fought the good hard fight and here are teh results.

For those that don't know my Goal was to have a 12.99 time slip last winter before breaking into my motor. Everything was there for it except traction and 60ft's ended up with a 13.07 at 104 and change.

I scored some heads and a cam from some buddies ( Thanks BBH and Big Bob ! ) I got tuned at McNews Automotive in Pa and I put down 342 hp and 365tq ( that dyno is very stingie )

So I grab the BGF's and head to the track for a Midday madness, I got to the track and they were running open sessions and knowing I needed to practice how I made the car leave I just emptied the car out and bolted on teh DR and went to town.

Race weight was 200# more than normal for me at 4430# keep that in mind.

Here is a list of my passes :



Now if you will look I have several of these passes data logged. I use the DashHawk as it is easy to look at and read and I like the graphing tools. The predator can get me more data but its harder to work with for something like what I am doing. So Here are my data logs


DashHawk Log 1 Pass 1

Launch at 1800
1/2 Shift 6432
2/3 Shift 6297

KR at
1800 on load .5* in First
3750 1.0*
on shift 4556 2.0*

Timing in 1st - Max 29 low 14 w/ KR
Timing in 2nd - Max 29 low 14 w/ 2* KR ( would have recovered at 16 )
Timing in 3rd - Max 24 @ 4323 Low 17



DashHawk Log 2 Pass 3

Launch @ 2228
1/2 Shift- 6000
2/3 Shift- 6191

KR at

1* in 1st @ 3160
.5* in 1st @ 4740
.5* in 2nd @ 4834

Timing in 1st - 14 low 27 high
Timing in 2nd - 16 low 28 high
Timing in 3rd - 17 low 23 high




DashHawk Log 3 Pass 5

Launch @ 2971
1/2 Shift- 6184
2/3 Shift- 6348

KR at

1* @ 3571 in 1st
.5* @ 4405 on shift to 2nd

Timing in 1st - low 14 ( 1* KR ) 28 High
Timing in 2nd - low 17 29 high @ 6271 then drop to 27 @ 6348
Timing in 3rd - low 18 24 high .5 HR

Weird throttle things going on, maybe a slight bumpof limiter ?



DashHawk Log 4 Pass 6

Launch @ 1750
1/2 Shift - 6301
2/3 Shift - 6405

KR at

1.5* @ 4929 in 1st

Timing in 1st - 14 low 29 high
Timing in 2nd - 16 Low ( w/ 1.5* KR ) 30 high after weird throttle stuff
Timing in 3rd - 17 low 24 high

MOre weird throttle things



Predator Log 1 Pass 7

1/2 Shift- 5099 ( short shift on red light )
2/3 Shift- 6367

Launch @ 3059 ?

KR at

4780 in first 2.0*
4942 in second 1.0*


Timing in 1st - max 20 ( short shift ) low 14
Timing in 2nd - 28.5 max 13.5 low
Timing in 3rd - 17.5 low 25 high

some TB / TM stuff going on

Higets injector pulse widths seen 14ms ( or 14000us )


So there you go some basics on these runs, a look into whats going on and what my next steps are.

I have to work on several things in the CMR tune, Launch timing is coming up, some VooDoo I am working out, I need to get some more weight off the car, the goal is an even 4000# race weight, so I know where I had 200# in the car today and I have planes that should get me the other 200#. There is a SLIM chance I maybe able to take an addition 100# off through some light weight parts availability.

I am getting bigger tires ( 275 45 17's ) on a lighter wheel and some front runners and all of that is parts of the diet that car is going on.

-Robert