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Drag Racing Where ALL Racers are Welcome- From ET Bracket, all the way to ProStreet and Top Diesel! |
08-07-2017, 07:49 PM
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#41
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Name: they all break
Title: Green Behind the Ears
Status: Not Here
Join Date: Oct 2009
Member`s Gallery
Posts: 38
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I also only removed my overloads that may be causeing the back to squat more which will raise the front since you took an additional leaf out.
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08-07-2017, 07:54 PM
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#42
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Name: they all break
Title: Green Behind the Ears
Status: Not Here
Join Date: Oct 2009
Member`s Gallery
Posts: 38
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You could lower the front are strap the frontend from coming up did that to.
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08-08-2017, 06:57 AM
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#43
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Name: jasonc
Title: Too Much Time
Status: Not Here
Join Date: Nov 2009
Member`s Gallery
Posts: 4,396
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Move the caltracs up one hole, then start adding more tension on the bars if that's not enough. Moving the bars up one hole makes a big difference.
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08-08-2017, 07:23 PM
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#44
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Name: bigsexy7.3
Title: Diesel Enthusiast
Status: Not Here
Join Date: Feb 2013
Member`s Gallery
Posts: 201
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When you guys say move the Caltracs up a hole are you guys starting out in the lowest hole?
__________________
2008 2500 6.7 with s366/s480, twin fuelers, 4r100 swap transmission, industrial injectors and supporting mods
2008 F250 6.4 sold
1999 F250 7.3 sold
1995 12v Cummins sold
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08-09-2017, 06:07 AM
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#45
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Name: SPEEDSHIFT
Title: Too Much Time
Status: Not Here
Join Date: Jan 2007
Location: San Antonio, TX
Member`s Gallery
Posts: 5,978
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Quote:
Originally Posted by bigsexy7.3
When you guys say move the Caltracs up a hole are you guys starting out in the lowest hole?
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Yes
__________________
@bodie_armstrong
2003 2500 4x4 auto FOR SALE
2005 2500 4x4 auto Drag Truck
2013 3500 4x4 Aisin Dually Tow Rig
Tenacity Tuning, Longs Machine Shop, BD Diesel Performance
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08-09-2017, 07:26 AM
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#46
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Name: imelmo
Title: Go away, I'm 'batin'!
Status: Not Here
Join Date: Jun 2006
Location: Slidell, LA
Member`s Gallery
Posts: 8,878
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Quote:
Originally Posted by IdahoRob
On a footbrake set-up there should be room between the spring and the Caltrac roller. Basically as you get on the brake and up on boost, the Caltrac will then load the spring. If starting out tight before spooling, you may be binding the suspension. Just my
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Quote:
Originally Posted by Dockboy
Never heard of that!
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I've heard that before too.
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__________________
ZMBYKLR, '03 Reg Cab Short Bed 4x4
Truck Source Diesel, Warren Diesel, Gardner Racing, Diesel Innovations, 1018 rear wheel llamathrust
10.38 @ 129.60mph
The FORDOTA, '86 Toyota reg cab tube chassis to be powered by a 6.0 Powerstroke; finally back in progress
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08-09-2017, 08:19 PM
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#47
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Name: jasonc
Title: Too Much Time
Status: Not Here
Join Date: Nov 2009
Member`s Gallery
Posts: 4,396
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Quote:
Originally Posted by imelmo
I've heard that before too.
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He was also running bias ply slicks.
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08-09-2017, 08:29 PM
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#48
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Name: Chevyguy15
Title: Diesel Enthusiast
Status: Not Here
Join Date: Feb 2015
Location: lakeville, MN
Member`s Gallery
Posts: 226
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my truck hooks the best with cal tracs in middle hole and a gap of a quarter for preload
__________________
07.5 cummins
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08-10-2017, 03:02 PM
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#49
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Name: SPEEDSHIFT
Title: Too Much Time
Status: Not Here
Join Date: Jan 2007
Location: San Antonio, TX
Member`s Gallery
Posts: 5,978
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I am going to move up to the second hole and see how it does at the track next weekend. It should be faster anyway because ill be running it on a .032 Jet also. I am trying to spray the truck into the 10s.
After that I will be working on my 11.90 tune-up to prepare for the world finals.
__________________
@bodie_armstrong
2003 2500 4x4 auto FOR SALE
2005 2500 4x4 auto Drag Truck
2013 3500 4x4 Aisin Dually Tow Rig
Tenacity Tuning, Longs Machine Shop, BD Diesel Performance
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08-11-2017, 01:32 AM
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#50
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Name: 1stgensleeper
Title: Too Much Time
Status: Not Here
Join Date: Jul 2012
Location: Modesto, California
Member`s Gallery
Posts: 773
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Quote:
Originally Posted by Chevyguy15
my truck hooks the best with cal tracs in middle hole and a gap of a quarter for preload
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What do you mean by quarter? A quarter inch or thickness of a quarter?
While I understand what you guys are saying about leaving a gap between the roller and the leaf spring when using caltracs on a foot brake setup, if you have too much of a gap aren't you then allowing your axle to twist before it sees enough force on the leaf springs to counteract this? It seems like you wouldn't be helping much in the axle wrap department with having a gap.
__________________
2006 QCLB 4x4 manual vb 47re, Savage Fab He351, exergy 100% overs, flo pro 5" exhaust
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08-11-2017, 06:12 AM
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#51
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Name: SPEEDSHIFT
Title: Too Much Time
Status: Not Here
Join Date: Jan 2007
Location: San Antonio, TX
Member`s Gallery
Posts: 5,978
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Quote:
Originally Posted by 1stgensleeper
What do you mean by quarter? A quarter inch or thickness of a quarter?
While I understand what you guys are saying about leaving a gap between the roller and the leaf spring when using caltracs on a foot brake setup, if you have too much of a gap aren't you then allowing your axle to twist before it sees enough force on the leaf springs to counteract this? It seems like you wouldn't be helping much in the axle wrap department with having a gap.
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I'm pretty sure he meant the thickness of a quarter.
__________________
@bodie_armstrong
2003 2500 4x4 auto FOR SALE
2005 2500 4x4 auto Drag Truck
2013 3500 4x4 Aisin Dually Tow Rig
Tenacity Tuning, Longs Machine Shop, BD Diesel Performance
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08-14-2017, 06:22 AM
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#52
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Name: SPEEDSHIFT
Title: Too Much Time
Status: Not Here
Join Date: Jan 2007
Location: San Antonio, TX
Member`s Gallery
Posts: 5,978
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Well, I finally cut a 1.67 Friday night with no changes to the suspension. I left on 15psi but sprayed a .032 jet. Also made my fastest pass to date with a 11.18 but only 1.73 sixty foot and welded the trans together.
__________________
@bodie_armstrong
2003 2500 4x4 auto FOR SALE
2005 2500 4x4 auto Drag Truck
2013 3500 4x4 Aisin Dually Tow Rig
Tenacity Tuning, Longs Machine Shop, BD Diesel Performance
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08-14-2017, 03:09 PM
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#53
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Name: ctdiesel99
Title: Comp Diesel Sponsor
Status: Not Here
Join Date: Nov 2008
Location: Lansdale, PA
Member`s Gallery
Posts: 2,789
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Quote:
Originally Posted by SPEEDSHIFT
Well, I finally cut a 1.67 Friday night with no changes to the suspension. I left on 15psi but sprayed a .032 jet. Also made my fastest pass to date with a 11.18 but only 1.73 sixty foot and welded the trans together.
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Getting somewhere!
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