Re: Caltracs vs. Assassin?
[Re: DLewis]
#1920210
09/26/15 07:37 PM
09/26/15 07:37 PM
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Joined: Sep 2014
Posts: 4,457
Washington
madscientist
master
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master
Joined: Sep 2014
Posts: 4,457
Washington
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The Asassin has more adjustability. That's usually a good thing, unless you don't test. Then it may be a bad thing.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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Re: Caltracs vs. Assassin?
[Re: DLewis]
#1920457
09/27/15 09:30 AM
09/27/15 09:30 AM
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Joined: Jan 2003
Posts: 2,937
A shed in England
Tig
master
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master
Joined: Jan 2003
Posts: 2,937
A shed in England
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As above, we drilled extra holes in our Caltrac spring mounts and had different front plates made to alter the lower bar position. Ended up back at the stock positions any way.
However, if I were to do it again I'd go with the Assassin bars.
'74 Challenger..9.46 @ 145.9 1/4, 6.001 @ 118 1/8 so far. 4023lb !!! # N/A, Marsh performance 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 3:73's and real 10.5 radials.
9.51 @ 142.4 1/4, 6.003 @ 114 1/8 with our old mule KB, 572-13, 580 wedge.
RHD '68 Barracuda Fastback 323ci street/strip. Best ET 13.88 @ 99.03
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Re: Caltracs vs. Assassin?
[Re: Tig]
#1920482
09/27/15 10:50 AM
09/27/15 10:50 AM
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Joined: Sep 2013
Posts: 103
Minnesota
DLewis
OP
member
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OP
member
Joined: Sep 2013
Posts: 103
Minnesota
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As above, we drilled extra holes in our Caltrac spring mounts and had different front plates made to alter the lower bar position. Ended up back at the stock positions any way.
However, if I were to do it again I'd go with the Assassin bars. Thanks guys, I'll give them a shot. Tig, Are there leafs you'd recommend?
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Re: Caltracs vs. Assassin?
[Re: DLewis]
#1920590
09/27/15 01:53 PM
09/27/15 01:53 PM
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Joined: Jan 2005
Posts: 3,635
Oakland, MI
dizuster
master
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master
Joined: Jan 2005
Posts: 3,635
Oakland, MI
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These bars (caltrac or assassin's) basically make the front spring segment stiff on launch, essentially turning them into a very short ladder bar.
There is very little time between trans brake release, pinion rotation, and when the bars do that job.
The only major influence the bars adjustment holes have is to change the time it takes for that segment to become stiff.
If you put the rear hole higher or the front hole lower, it requires more pinion rotation before the pin hits the top of the spring. More rotation = more time.
On most cars with decent power you want this to happen as quick as possible so you can hit the tire, and get the car moving.
There is a much bigger effect on how high the front spring mount is off the ground, then there is anything you will adjust with the caltrac adjustment.
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Re: Caltracs vs. Assassin?
[Re: dizuster]
#1920657
09/27/15 03:10 PM
09/27/15 03:10 PM
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Joined: Feb 2011
Posts: 1,454
Glendora Ca.
Just-a-dart
pro stock
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pro stock
Joined: Feb 2011
Posts: 1,454
Glendora Ca.
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These bars (caltrac or assassin's) basically make the front spring segment stiff on launch, essentially turning them into a very short ladder bar.
There is very little time between trans brake release, pinion rotation, and when the bars do that job.
The only major influence the bars adjustment holes have is to change the time it takes for that segment to become stiff.
If you put the rear hole higher or the front hole lower, it requires more pinion rotation before the pin hits the top of the spring. More rotation = more time.
On most cars with decent power you want this to happen as quick as possible so you can hit the tire, and get the car moving.
There is a much bigger effect on how high the front spring mount is off the ground, then there is anything you will adjust with the caltrac adjustment.
 and would like to add Calvert supports a number of classes in different series with contingency. His checks cash with no B.S.
"Just a Bracket car dressed up like a streetcar"
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Re: Caltracs vs. Assassin?
[Re: DLewis]
#1920672
09/27/15 03:31 PM
09/27/15 03:31 PM
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Joined: Jan 2003
Posts: 2,937
A shed in England
Tig
master
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master
Joined: Jan 2003
Posts: 2,937
A shed in England
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As above, we drilled extra holes in our Caltrac spring mounts and had different front plates made to alter the lower bar position. Ended up back at the stock positions any way.
However, if I were to do it again I'd go with the Assassin bars. Thanks guys, I'll give them a shot. Tig, Are there leafs you'd recommend? The split mono leaf that the Calvert Bars use , I think they may be supplied by Landrum. I'd also add that Calverts after sales help is very good too. We had our mono spring re-arched to clear the slicks and hit the tyre hard so we tried to slow it down some by altering the lower bar angles and leverage.
'74 Challenger..9.46 @ 145.9 1/4, 6.001 @ 118 1/8 so far. 4023lb !!! # N/A, Marsh performance 655ci, Indy Maxx, T/R, Indy 600-13 X's, Street legal, pump gas, full interior, Cal-Tracs, mufflers, 3:73's and real 10.5 radials.
9.51 @ 142.4 1/4, 6.003 @ 114 1/8 with our old mule KB, 572-13, 580 wedge.
RHD '68 Barracuda Fastback 323ci street/strip. Best ET 13.88 @ 99.03
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