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Author
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Topic: CalTracs Adjustment
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Scott (69Mach)
Gearhead Posts: 734
From: Walnut Creek, CA USA
Registered: Jun 99
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posted 03-15-2005 11:04 AM
   
Alex, I installed the QA1s with settings of 2L and 3R from bottom. Also put in 1/2 turn preload on the CalTracs. Doing this, I lost 0.027 on average for the 60 compared to the last outing (1.797 before vs 1.824 now). The car launches pretty level, no pronouced rise or dip. The CalTracs are in the bottom hole. Which way should I take this??? Thanks, Scott
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Moneymaker
Administrator Posts: 25883
From: Lyons, IL, USA
Registered: May 99
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posted 03-15-2005 11:10 AM
What were the 330 and 660 ET's and MPH by comparison with your last outing Scott?
Did you run the same tires and air pressure?
Were the tires squatting or flattening out?Is the car leaving "square"?
Straight with no squirt to the left or right? Track and weather conditions could also be a factor. ------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,'04 &'05
First SS/MA in the TENS!
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
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89_coupe
Gearhead Posts: 228
From: Ontario (Upstate), NY
Registered: Mar 2001
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posted 03-15-2005 12:05 PM
I am not trying to hijak this thread but I think my question may also fit this thread so I'll ask  What does changing from the upper to the lower mounting hole do to the launch? Can the Cal Tracs be adjusted to where there is absolutely no tire/wheel seperation from the body or maybe make it squat slightly, like 1/2" or so? Are leaf spring rates very important or do they become less of a factor with the Cal Tracs on and what about clamping the leaf springs with the Cal Tracs on? Can you adjust them for a wheels up launch and next pass adjust to make a small wheelie with the same power?I'm getting a set as soon as there is an opening at the chassis shop (pushed back to next week now). I'm having new headers made, some cage work, and hopefully the Cal Tracs installed. What kind of 60' times can a basic rear leaf spring suspension get with Cal Tracs without the aftermarket leafs?
PS I'm still a little scared of putting on Cal Tracs and losing some 60' since I can go deep in the 1.30s with the stock suspension but with major roll rotation and no shock loads like trans brake or 2 step. I want to use a trans brake now and I know I can't with the current setup. ------------------
Kent '68 Falcon wagon stock 289
'65 Fairlane 500 wagon 10.5:1 351W
'78 Fairmont wagon 10.5:1 302
'76 Pinto wagon 392 stroke
'01 Focus SE DOHC 2.0L
'04 Explorer XLT 4.6 3.73 trac lock What is this FE fixation for which there seems to be no real cure? Something about wanting to spend twice as much money to go half as fast for one third the number of passes between explosions and not being able to find parts to fix it when it does explode. Pinto 392W 15:1, Iron Pro Topline 64/215s ported to 237cc, angle milled .115" to 52.5cc chambers with 2.08/1.6 valves, ported Super Victor, 1.72 rockers, Isky solid roller (290/300 adv, 256/266 at .050", .650" net lift, 108LSA/108 ICL), Crane Pro Series solid roller lifters, 9375 1050 Dominator, Victor water pump, billet 9 key timing set, custom 1 7/8"-2" step headers, 3.5" H-pipe and Hooker Aero Chamber mufflers, C4 w/9" 5000 stall, 4.30 gears, 28/10.5/15 MT ET Drags, 3200#s w/o driver.
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89_coupe
Gearhead Posts: 228
From: Ontario (Upstate), NY
Registered: Mar 2001
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posted 03-15-2005 12:07 PM
Alex, you sell Cal Tracs?
I want to be totally sure so I'll ask again but if I get Cal Tracs, I won't need to get a sway bar like I planned on doing?
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Scott (69Mach)
Gearhead Posts: 734
From: Walnut Creek, CA USA
Registered: Jun 99
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posted 03-15-2005 06:36 PM
Alex, the average times (4-5 runs each) are as follows:__________Before__________After
60'_______1.797___________1.824
330'______5.245___________5.319
1/8_______8.094___________8.189
1/8 mph__85.704__________84.615
1000'____10.579__________10.690
ET_______12.681__________12.806
MPH_____107.163_________107.255 The temp, pressure, humidity etc. was similar and produced about the same DA both days (January 30 and March 12). The air was a tad better on the second day when I was slower. Both days and all runs are at the same track (Sacramento). The motor was making the same MPH both days so I suspect the difference is all in the launch. The car leaves dead square. Pretty much everything was the same both days except the shocks and CalTracs. My reaction times were slower the second day. Not sure I can blame that on the car or on me. The best I could do was a 0.092. I hadn't reacted that poorly in a long time. I launch on the third bulb from idle and usually average about 0.05 or so plus or minus a few hundreths. I run 15 psi on ET Streets and do decent burnouts. Thanks for the help. Scott [This message has been edited by Scott (69Mach) (edited 03-15-2005).]
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Moneymaker
Administrator Posts: 25883
From: Lyons, IL, USA
Registered: May 99
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posted 03-15-2005 08:02 PM
Well Scott, it's obvious then that it must be spinning.
I would give it another half turn of pre-load and stiffen the shocks a click on each side for starters.
This is to try and hit the tire a bit harder and make the suspension do the work.Reaction times have nothing to do with ET. ------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,'04 &'05
First SS/MA in the TENS!
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com [This message has been edited by Moneymaker (edited 03-15-2005).]
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Moneymaker
Administrator Posts: 25883
From: Lyons, IL, USA
Registered: May 99
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posted 03-15-2005 08:04 PM
quote:
Originally posted by 89_coupe:
Alex, you sell Cal Tracs?
I want to be totally sure so I'll ask again but if I get Cal Tracs, I won't need to get a sway bar like I planned on doing?
Yes we do. ------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,'04 &'05
First SS/MA in the TENS!
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
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Moneymaker
Administrator Posts: 25883
From: Lyons, IL, USA
Registered: May 99
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posted 03-15-2005 08:56 PM
Scott, you don't have your car tied down in the front by any chance do you?
If the front end is not loose, you cannot transfer the weight and plant the tires with will actually cause the Cal-Tracs to bind up in mid travel.
Just another thought.------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,'04 &'05
First SS/MA in the TENS!
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
IP: Logged |
steve'66
Gearhead Posts: 8826
From: Sonoma,CA,USA
Registered: Mar 2000
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posted 03-15-2005 10:07 PM
Scott,You want 5" of upward travel in your front suspension, per Calvert. Jack the front crossmember up until the wheels come off the ground. Measure the starting point and the highest point. Next lose some front end weight, and or add ballast to the right rear. The top hole is probably better for your ride than the lower. The top hole hits harder. SteveW
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Scott (69Mach)
Gearhead Posts: 734
From: Walnut Creek, CA USA
Registered: Jun 99
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posted 03-20-2005 09:19 AM
OK, the race got rained out so I went to the garage and measured my upward suspension travel. I have a whopping 3.5 inches. The suspension is a Mustangs Plus rebuild kit I put on a while back before I got addicted to drag racing. I'm guessing its the 620 pound spring kit. I put on some summit drag shocks a few months ago. Is is time for 6 cylinder springs and longer travel shocks??? If so, which ones?On a completely unrelated note, I'm in negotiations on a house with a 1200 square foot 4-car shop in the back. I hope to move within 60 days or so. I'll finally have room for all my stuff including the other car. 
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Moneymaker
Administrator Posts: 25883
From: Lyons, IL, USA
Registered: May 99
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posted 03-20-2005 09:32 AM
Scott, try disconnecting the sway bar first.
Measure it again.------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,'04 &'05
First SS/MA in the TENS!
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
IP: Logged |
kid vishus
Gearhead Posts: 6098
From: middle of NC
Registered: Oct 2000
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posted 03-20-2005 09:37 AM
quote:
Originally posted by Scott (69Mach):
__________Before__________After
60'_______1.797___________1.824
330'______5.245___________5.319
1/8_______8.094___________8.189
1/8 mph__85.704__________84.615
1000'____10.579__________10.690
ET_______12.681__________12.806
MPH_____107.163_________107.255
Just my opinion here, but something else looks off also. You only lost .03 in the 60', but lost almost a full tenth in the 1/8 and one full mph. .03 difference in 60'shouldnt kill a tenth. It gained the mph back before the end of the qrtr, and only ended up 'off' by just over a tenth. I was always under the impression that .06 in the 1/8 was a tenth in the qrtr.
Maybe I'm just rambling or over-analyzing it, but I think there was something else in play killing the first half-track ET.
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Moneymaker
Administrator Posts: 25883
From: Lyons, IL, USA
Registered: May 99
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posted 03-20-2005 09:45 AM
I would speculate wheel spin on the 1-2 shift also added to the decrease Rob.
The car is a stick.------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,'04 &'05
First SS/MA in the TENS!
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
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Scott (69Mach)
Gearhead Posts: 734
From: Walnut Creek, CA USA
Registered: Jun 99
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posted 03-20-2005 09:46 AM
Alex, the swaybar is hanging from the rafters...Kid, I noticed the bigger that expected difference in the 1/8th as well. Not sure what it is.
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Scott (69Mach)
Gearhead Posts: 734
From: Walnut Creek, CA USA
Registered: Jun 99
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posted 03-20-2005 09:48 AM
The car has a reverse pattern, manual shifting C6.
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Moneymaker
Administrator Posts: 25883
From: Lyons, IL, USA
Registered: May 99
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posted 03-20-2005 10:04 AM
Oh yeah, I knew that Scott.  Oops, sorry not enough coffee yet.  Then the 620# springs have to go. ------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,'04 &'05
First SS/MA in the TENS!
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
IP: Logged |
Scott (69Mach)
Gearhead Posts: 734
From: Walnut Creek, CA USA
Registered: Jun 99
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posted 03-20-2005 10:08 AM
Something more along the lines of the 242# Moroso springs?
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Moneymaker
Administrator Posts: 25883
From: Lyons, IL, USA
Registered: May 99
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posted 03-20-2005 10:19 AM
quote:
Originally posted by Scott (69Mach):
Something more along the lines of the 242# Moroso springs?
NO!
8318 Moog or TRW or Elgin or McQuay Norris or Eaton or NAPA or....(it's an industry number)
------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,'04 &'05
First SS/MA in the TENS!
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
IP: Logged |
stroker man
Gearhead Posts: 216
From: Denville NJ USA
Registered: Mar 2002
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posted 03-20-2005 11:28 AM
man my 69mach1 has 620 springs in front also lowing it 1'' from stock not good, caltracs are going in back along with rancho shocks, what spring do i need to get for my car, street some strip, also i have KYB shocks in front will they work?, i have sub frames on now and Hoosiers quick time drag radials 275-15-60 27'' tall, is my car set up right for racing?. thanks.
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89_coupe
Gearhead Posts: 228
From: Ontario (Upstate), NY
Registered: Mar 2001
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posted 03-20-2005 04:13 PM
What about using the 1.5" - 2" Shock extensions like the ones I have had on my car since the mid 90s when I needed more front end travel after putting a bunch of wedges in my front coils which had me topped out at rest but the extensions gave me the needed 1.5" upward movement on launch. That is just an added option if you want more front end travel with little effort other than screwing the extensions on the tops of the shocks where the nut and bushings go. The nut and bushings go on the extension itself and works great. I think mine are Moroso extensions but I'm not positive since it WAS soo many years ago back in my younger(Time for my meds again  )------------------
Kent '68 Falcon wagon stock 289
'65 Fairlane 500 wagon 10.5:1 351W
'78 Fairmont wagon 10.5:1 302
'76 Pinto wagon 392 stroke
'01 Focus SE DOHC 2.0L
'04 Explorer XLT 4.6 3.73 trac lock What is this FE fixation for which there seems to be no real cure? Something about wanting to spend twice as much money to go half as fast for one third the number of passes between explosions and not being able to find parts to fix it when it does explode. Pinto Wagon 392W 15:1, Iron Pro Topline 64/215s ported to 237cc, angle milled .115" to 52.5cc chambers with 2.08/1.6 valves, ported Super Victor, 1.72 rockers, Isky solid roller (290/300 adv, 256/266 at .050", .650" net lift, 108LSA/108 ICL), Crane Pro Series solid roller lifters, 9375 1050 Dominator, Victor water pump, billet 9 key timing set, custom 1 7/8"-2" step headers, 3.5" H-pipe and Hooker Aero Chamber mufflers, C4 w/9" 5000 stall, 4.30 gears, 28/10.5/15 MT ET Drags, 3200#s w/o driver.
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Moneymaker
Administrator Posts: 25883
From: Lyons, IL, USA
Registered: May 99
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posted 03-20-2005 08:07 PM
All the shock extentions will do is extend shock travel if you have a longer spring.
A stiff spring is still a stiff spring no matter what shocks you have and therefore is the limiting factor.------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,'04 &'05
First SS/MA in the TENS!
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
IP: Logged |
Scott (69Mach)
Gearhead Posts: 734
From: Walnut Creek, CA USA
Registered: Jun 99
|
posted 03-20-2005 11:50 PM
Do I need to swap shocks as well to get the increased travel??? I've got the Summit drag shocks now.
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kid vishus
Gearhead Posts: 6098
From: middle of NC
Registered: Oct 2000
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posted 03-21-2005 08:45 AM
Those shocks should be long enough, if you have the correct springs. The extenders wont work on 69-70 cars since they use the bar style top mount and not a stud type.I used to have 620# springs on the front of my '70, and it wouldn't transfer weight no matter what shocks were on the front (there just wasn't enough travel in the front.) The car now has 6 cylinder springs on the front, and it pitch rotates much better now even though it still has the same shocks on it.
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Moneymaker
Administrator Posts: 25883
From: Lyons, IL, USA
Registered: May 99
|
posted 03-21-2005 09:57 AM
quote:
Originally posted by Scott (69Mach):
Do I need to swap shocks as well to get the increased travel??? I've got the Summit drag shocks now.
No. ------------------
Alex Denysenko
Co-Administrator and Moderator NHRA/IHRA/SRA member and licensed Superstock driver
NHRA and IHRA SS/LA & SS/MA National Record Holder '00,'01,'02,'03,'04 &'05
First SS/MA in the TENS!
IHRA division 5 Superstock Champion
Fleet of FoMoCo products including 88 ASC McLaren Mustang #28 The Barry of BarrysGrrl Quote #1: "I never met a magazine mechanic I liked."
Quote #2: "Make sure brain is in gear before engaging mouth!"
Quote #3: "If you can't run with the big dogs, stay on the porch!"
www.moneymakerracing.com
IP: Logged |
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