CAS discs and crank triggers?
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Evolving Member
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From: Cambridge Ohio
CAS discs and crank triggers?
I never even heard of this before until someone mentioned it in another thread. It's suppose to eliminate the long cranking on AEMs which is the ONLY thing I dislike about mine. Don't get me wrong, it's not awful. I could live with it, but if this will fix it I would buy it. I searched and could not find any info about it on here. Rather than go OT I just made a new thread to see if anyone knows if they really work, or if any of you guys are using them.
link to what I am talking about: http://bbrooks.doitbig.org/BrooksTun...%20Trigger.htm
link to what I am talking about: http://bbrooks.doitbig.org/BrooksTun...%20Trigger.htm
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Joined: Jul 2003
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From: NE Ohio
I have the DSM version and can't say enough good things about it.
When Brad was tuning my car a few months ago we swapped from a regular DSM cas disc to his TriggerDisc and the car picked up about 40whp on pump gas with no other changes. Definately not saying this is what is to be expected from this mod, but just stating what we saw with my personal car.
The starting is the most impressive feature. I never realized how much better it started until I was at Buschur's Sport Compact event and heard all the AEM powered EVO's and DSM's there that would sit and crank forever.
Final numbers were very impressive, record actually on a DSM. I have to think the TriggerDisc helped achieve those goals.
When Brad was tuning my car a few months ago we swapped from a regular DSM cas disc to his TriggerDisc and the car picked up about 40whp on pump gas with no other changes. Definately not saying this is what is to be expected from this mod, but just stating what we saw with my personal car.
The starting is the most impressive feature. I never realized how much better it started until I was at Buschur's Sport Compact event and heard all the AEM powered EVO's and DSM's there that would sit and crank forever.
Final numbers were very impressive, record actually on a DSM. I have to think the TriggerDisc helped achieve those goals.
I have the DSM version and can't say enough good things about it.
When Brad was tuning my car a few months ago we swapped from a regular DSM cas disc to his TriggerDisc and the car picked up about 40whp on pump gas with no other changes. Definately not saying this is what is to be expected from this mod, but just stating what we saw with my personal car.
The starting is the most impressive feature. I never realized how much better it started until I was at Buschur's Sport Compact event and heard all the AEM powered EVO's and DSM's there that would sit and crank forever.
Final numbers were very impressive, record actually on a DSM. I have to think the TriggerDisc helped achieve those goals.
When Brad was tuning my car a few months ago we swapped from a regular DSM cas disc to his TriggerDisc and the car picked up about 40whp on pump gas with no other changes. Definately not saying this is what is to be expected from this mod, but just stating what we saw with my personal car.
The starting is the most impressive feature. I never realized how much better it started until I was at Buschur's Sport Compact event and heard all the AEM powered EVO's and DSM's there that would sit and crank forever.
Final numbers were very impressive, record actually on a DSM. I have to think the TriggerDisc helped achieve those goals.
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Joined: Oct 2005
Posts: 21
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From: Springfield, VA
Your map will need to modified to run the new Disc, it requires quite a few setting changes
The reason it isn't more popular is that it is new and hasn't really been marketed at all to this point. The EVO9 is still in testing with the Mivec and may actually get a whole different design disc to make full use of increased updating of the intake cam location.
David Buschur now has one and has said he's going to be testing it soon. So maybe in the future it will be more common.
The reason it isn't more popular is that it is new and hasn't really been marketed at all to this point. The EVO9 is still in testing with the Mivec and may actually get a whole different design disc to make full use of increased updating of the intake cam location.
David Buschur now has one and has said he's going to be testing it soon. So maybe in the future it will be more common.
Last edited by BBrooks; Jun 23, 2008 at 11:42 AM.
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Thread Starter
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From: Cambridge Ohio
Your map will need to modified to run the new Disc, it requires quite a few setting changes
The reason it isn't more popular is that it is new and hasn't really been marketed at all to this point. The EVO9is still in testing with the Mivec.
David Buschur now has one and has said he's going to be testing it soon. So maybe in the future it will be more common.
The reason it isn't more popular is that it is new and hasn't really been marketed at all to this point. The EVO9is still in testing with the Mivec.
David Buschur now has one and has said he's going to be testing it soon. So maybe in the future it will be more common.
Do you foresee any shortages in product after a review?
I am trying to figure out if I should get one now, or wait till the review
Thanks for the response also!
Newbie
Joined: Oct 2005
Posts: 21
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From: Springfield, VA
Well, the few we've sold so far everyone has been pleased, but an outside test would be best for an unbiased opinion.
Other than the quicker starting it actually helps ignition accuraccy also, which was one of the main reasons for building it. I'll try and put more info up about that when I get more time.
Also if anyone within a resonable distance to VA would like to do some testing for the EVO9 for a free disc, shoot me an email.
Other than the quicker starting it actually helps ignition accuraccy also, which was one of the main reasons for building it. I'll try and put more info up about that when I get more time.
Also if anyone within a resonable distance to VA would like to do some testing for the EVO9 for a free disc, shoot me an email.
Last edited by BBrooks; Jun 23, 2008 at 11:30 AM.
BBrooks,
Can you PM me everything I would need to change in my AEM calibration? I have an Evo 8 and am seriously interested in trying this out. I should have my engine back within 2 weeks so while its out I would rather install it then...
Can you PM me everything I would need to change in my AEM calibration? I have an Evo 8 and am seriously interested in trying this out. I should have my engine back within 2 weeks so while its out I would rather install it then...
Thread Starter
Evolving Member
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From: Cambridge Ohio
I am also interested in what all needs changed. Can I just change a couple settings, or I am going to need a full re-tune.
If I install it will I be able to drive it somewhere to get tuned, or will I need it installed where I am getting the tune?
Thanks again
If I install it will I be able to drive it somewhere to get tuned, or will I need it installed where I am getting the tune?
Thanks again
Newbie
Joined: Oct 2005
Posts: 21
Likes: 0
From: Springfield, VA
The tune can stay the same.
We've tested this a few times now. I have tuned a car fully on a stock 4 tooth dsm disc, then did nothing but change to the 24tooth dsm disc and re-sync timing with a light. The power, A/F and the curve looked almost identical only the curves with the new disc being a little smoother. When we first did Tony's(dsmu4ia) car we actually picked up power, but after doing that same test 3 times now I think his car was just off on timing slightly with the stock disc.
Most of the changes are simply inputting new settings into the cam/crank settings in the AEM.
One other change is made to the cam sensor which involves taking off one tooth from the wheel. This is a simple mod with a dremel tool, all external to the motor and takes about 10mins to do.
I should mention, when you get a disc it comes with a complete .PDF instruction showing everything needed to be changed along with pictures. Also, the disc only fits on cars with the balanceshafts removed.
We've tested this a few times now. I have tuned a car fully on a stock 4 tooth dsm disc, then did nothing but change to the 24tooth dsm disc and re-sync timing with a light. The power, A/F and the curve looked almost identical only the curves with the new disc being a little smoother. When we first did Tony's(dsmu4ia) car we actually picked up power, but after doing that same test 3 times now I think his car was just off on timing slightly with the stock disc.
Most of the changes are simply inputting new settings into the cam/crank settings in the AEM.
One other change is made to the cam sensor which involves taking off one tooth from the wheel. This is a simple mod with a dremel tool, all external to the motor and takes about 10mins to do.
I should mention, when you get a disc it comes with a complete .PDF instruction showing everything needed to be changed along with pictures. Also, the disc only fits on cars with the balanceshafts removed.
Last edited by BBrooks; Jun 23, 2008 at 01:34 PM.
Newbie
Joined: Nov 2007
Posts: 10
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From: Woodbridge, VA
The FAQ page on triggerdisc.com should answer most of these questions. We do prefer to furnish the full instructions only to those who purchase a disc. The calibration changes are extensive, but easy to make.
The EVO9 application has a lot of potential. I will echo Brad's call for anyone local who would be willing to volunteer their car for testing.
The EVO9 application has a lot of potential. I will echo Brad's call for anyone local who would be willing to volunteer their car for testing.
The triggerdisk crank trigger works very well. It was installed in on of my friend's evo by Big Valley Performance. It starts like stock. I wish I would have pulled my balance shafts when I built my motor so I could run one too.
