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Koni yellow 4/4 used for drag?

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Old 11-24-2012, 10:21 AM
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Default Koni yellow 4/4 used for drag?

Can i use the koni yellow 4/4 competitively at a race track? I mean launching the car hard and having a consistant ET for bracket racing?

The car is a DD so i want it to handle nicely for backroads around where i live, but i do want to be able to take it up to the track and be competitive. So i just wanna hear if anyone is racing with this setup and what they think.
Old 11-24-2012, 11:39 AM
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It really depends on how much power you are making and what other suspension mods you will do. They are certainly fine for a bolt-on car with an othewise stockish suspension.
Old 11-24-2012, 11:49 AM
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Originally Posted by RevGTO
It really depends on how much power you are making and what other suspension mods you will do. They are certainly fine for a bolt-on car with an othewise stockish suspension.
Im planning on making about 450hp which should put me low 11s in the quarter. Im not going to do much suspension until the stock 10 bolt gives way (except SFC's). Then ill most likely get a MWC 9" with some of their suspension components (LCA's, PHB, Torque arm)
Old 11-24-2012, 01:34 PM
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You can handle quite a bit of power without going to drag shocks by removing the front sway bar for the track and getting an adjustable rear swaybar.
Old 11-25-2012, 12:19 PM
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Originally Posted by RevGTO
You can handle quite a bit of power without going to drag shocks by removing the front sway bar for the track and getting an adjustable rear swaybar.
alright thanks for the info
Old 11-25-2012, 02:28 PM
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Ill be using my Koni shocks, springs and rear sway bar for drag racing, they should hold for a while
Old 11-26-2012, 11:40 AM
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No sweat... Have a customer who ran a best of 1.50 on Koni's... better than his 1.59 best on "drag" shocks (Afco/QA1 combination).
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Old 11-26-2012, 07:09 PM
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I went 1.47 on my Koni's, with a Hoosier QTP tire. Just do not expect to lift the front wheels. Not even close on the 1.47.


Also, do you have an M6 or an auto. The auto will be more forgiving.
Old 11-26-2012, 08:17 PM
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^not to hack...but what trans (and clutch) you got rampant?

in for more results as well!!!
Old 11-27-2012, 06:30 AM
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Originally Posted by zacht
^not to hack...but what trans (and clutch) you got rampant?

in for more results as well!!!

Used an M6 with a McLoed Street Twin. This was with my old 412 LS2 motor. All Koni 4s, with Strano's rear sway bar. The current motor is in Revision 2. Revision one of the 455 had internal issues. Since Rev 1, I have picked up 70hp.

That said, the car has been in my garage for the last 2 years. I guess I should get around to finishing it.
Old 11-27-2012, 12:03 PM
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Originally Posted by RAMPANT
Used an M6 with a McLoed Street Twin. This was with my old 412 LS2 motor. All Koni 4s, with Strano's rear sway bar. The current motor is in Revision 2. Revision one of the 455 had internal issues. Since Rev 1, I have picked up 70hp.

That said, the car has been in my garage for the last 2 years. I guess I should get around to finishing it.
pretty impressive! i looked through some of your posts and seen the 455 build! pretty crazy build! i figured 700rwhp would be a little high for an auto...just was checking.

did you adjust your koni's for the track? take off the rear sway bar???
Old 11-27-2012, 12:27 PM
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Originally Posted by zacht
pretty impressive! i looked through some of your posts and seen the 455 build! pretty crazy build! i figured 700rwhp would be a little high for an auto...just was checking.

did you adjust your koni's for the track? take off the rear sway bar???
Mine only made 700 flywheel, might translate into 600rwhp, maybe a little better. I still have cathedral port heads. Not been on a chassis dyno yet.

I only adjusted the front shocks to full loose, and disconnected one of the sway bar endlinks in the front.
Old 11-27-2012, 01:46 PM
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Originally Posted by zacht
pretty impressive! i looked through some of your posts and seen the 455 build! pretty crazy build! i figured 700rwhp would be a little high for an auto...just was checking.

did you adjust your koni's for the track? take off the rear sway bar???
You wouldn't want to take the rear bar off.... You might well turn the Koni's down in front. In fact Rampant did exactly what you'd want to do to help any car leave hard. Disconnect front bar, have as little rebound as possible. And you can build a car that is like that all the time, and will drive like crap.

That' the nice part here. You can have your cake and eat it too, not having to have a crappy driving handling car, but one that can still leave.
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Old 11-27-2012, 02:39 PM
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Originally Posted by Sam Strano
That' the nice part here. You can have your cake and eat it too, not having to have a crappy driving handling car, but one that can still leave.
And thats is exactly what im looking for....
Old 11-27-2012, 02:49 PM
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fwiw, I'm going to just toss this out.... I'm still running the free shipping special on Koni's (and have them in stock too). $899.99 for "4/3" and $999.99 for the set of "4/4"'s.
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Old 11-27-2012, 02:59 PM
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Originally Posted by Sam Strano
You wouldn't want to take the rear bar off.... You might well turn the Koni's down in front. In fact Rampant did exactly what you'd want to do to help any car leave hard. Disconnect front bar, have as little rebound as possible. And you can build a car that is like that all the time, and will drive like crap.

That' the nice part here. You can have your cake and eat it too, not having to have a crappy driving handling car, but one that can still leave.
ah crap...i meant front...
Old 11-27-2012, 03:00 PM
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ok, just checking.
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Old 11-29-2012, 07:48 PM
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Originally Posted by RAMPANT
I went 1.47 on my Koni's, with a Hoosier QTP tire. Just do not expect to lift the front wheels. Not even close on the 1.47.


Also, do you have an M6 or an auto. The auto will be more forgiving.
What spring are you running?
Old 11-29-2012, 08:22 PM
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Originally Posted by WayFast84
What spring are you running?
I have a set up Sam does not sell anymore, though he could replicate it with a similar set up.

I run a Ground Control perch in the rear and GCs coil over conversion on the front with springs Sam spec'd. They have issues, but I have been lucky with them. The rates are 550 front and 150 straight rate rear. It could likely use a little more spring. I have been thinking of swapping out to KW setup from Sam.

Strongly suggest using Sam, the information and support he offers is 2nd to none, he knows these cars.
Old 11-29-2012, 09:01 PM
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Found a slow motion video of a 1.47 60ft on the Koni's.



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