Dyna drl400

[lankeeyankee]

http://www.bigccracing.com/shop/product.asp?idproduct=216

Has anyone out there expiermented with this product. I believe I can take 2 of these and make a 2 step with a rev limiter work with the VMAX ignition.. If you havent took this route to achieve a 2 step with a VMAX please post you have used..

 

[KJShover]

I asked about this unit and it's compatability with the stock ignition, as well as the Dyna 3K (for '90-07), a while back this is what they sent me along with a couple of .pdf files, According the the instructions on the dyna 3k's, Its pretty weak that they dropped the two-step for the '90 on up module and left it in for the '85-'89.:

"Hello KJ,

Thank you for your interest in Dynatek ignitions. Please find attached the
instruction information you might need. This is in a .PDF format and Adobe
Acrobat Reader is required to open it. You can download a free version of
this software at www.adobe.com/products/acrobat/readstep.html

Please note the DRL-400 2 stage rev limiter only controls 2 coils. It
does not have the ability to control 4 coils.

Might I suggest using the DRL-300 for the high side limit for the Yamaha
V-Max application? The unit is the only limiter

we make that is compatible with the 4 separate coils and offset cylinder
firing order. Use the orange wire for the necessary single coil triggering and
you should be fine.

If we can be of further assistance, please contact us again.

Sincerely,

Thank you,
Raymond Goshorn
Customer Service Manager
Dynatek
1-800-928-DYNA (3962)
http://www.dynaonline.com"

 

[lankeeyankee]

Thanks KJ great info...
I am not so worried about a high side rev limiter, its rare I over rev my engine by mistake. I have learned the VMAX engine doesnt like 9500+ RPMS:bang head:

I plan on using 2 of the DRL400's for a line control / two step, stutter box.
I believe a 2 step with a slider clutch in the VMAx I will be able to launch the bike consistently enough to compete at a high level in bracket racing.

I am needing a slider hat so I can leave it with my machinist with a clutch basket to see what he can figure up.. I am running out of time 2 more weeks and Friday night drags start :clapping:

 

[one2dmax]

I think I have the schematic for wiring up two 200's on the 85-89 bikes for the two step.

Sean

 

[KJShover]

I wonder if it would be easier to use the 300 and modify a clutch switch to work and wire it so that is normally open.

so when the clutch is pulled in the rev limiter is on at 6k and shuts off when you release the clutch.

http://www.mpsracing.com/products/MPS/cl01.asp

 

[lankeeyankee]

I wonder if it would be easier to use the 300 and modify a clutch switch to work and wire it so that is normally open.

so when the clutch is pulled in the rev limiter is on at 6k and shuts off when you release the clutch.

http://www.mpsracing.com/products/MPS/cl01.asp

First...
Sean if you have the schematic for wiring a VMAX 2 step shoot me an email any help to save a few minutes and head scratching is appreciated. My buddy that used to race his 85 VMAX back in the early 90's is giving me his, since his VMAX has been in a cardboard box for the last 10 years.
We were talking on the phone and he said he has ran as fast as 106 on his stock enternal VMAX Stage 3 no airfilters, Open no baffle Kerker 4-2-1 slicked wheelie barred max.. I rode it once back in 92 down the track and ran 103 at 6.60's on it..
Anyways KJ
Its not really a good thing to use a top end rev limiter for a launch rpm controller. I have done this back in 1990 on a GSXR750 and used a Dyna to try and stutter, It doesnt burn the fuel as good the spark isnt as hot or something I dont know the full detail I know it doesnt work..
I will tell you a story though, I remember back when I raced every weekend there was a guy that had a low budget dragbike and he used a high end rev limiter as a launch control RPM it didnt sound crisp when he would start to 2 step on the line you could hear it load up.. Well anyways he would start 2 steppping early ........ so I remember racing him in the final round one time,, I let him sit there and stutter for a while as I didnt stage up quickly I used all the time I could... well he couldnt run the number since he bogged off the line from all the fuel loading up in the cylinder LOL!! Talk about pissed!! He was over where I parked in the pits before I even got back and had his helmet off with some few choice words for me! LMAO YOU DAMN CHEATING F'ING YANKEE SOB! WTF IS YOUR PROBLEM BLAHH BLAHH!! Ohh well I laughed as I walked to the tower to collect my winnings!
Winning can also be accomplished by mentally defeating your opponent.
There are many head games you can play in dragracing if you know your opponents style and habits..
So, you can 2 step with a low budget rev limiter but it will load the cyln up with raw fuel.. not good!!

 

[one2dmax]

Lankee, send me an email with a fax number and i'll try to copy the pages and send them to you (may be monday before I can get it to you). Keep in mind this is on the 85-89 ignitions which has the dual pickup and completely different harness. You may still be able to road map what you need anyway and might help you on the newer style.

I still need to break out all the other ignition stuff I have which allows for different ignitions that are easier to work with. I have a v-12 jaguar setup even.

Sean

 

[lankeeyankee]

I wonder if it would be easier to use the 300 and modify a clutch switch to work and wire it so that is normally open.

so when the clutch is pulled in the rev limiter is on at 6k and shuts off when you release the clutch.

http://www.mpsracing.com/products/MPS/cl01.asp

I will use a electronic timer instead of a mechanical switch. Once the crossover delay time ends it will send a signal to the 2 step timer which will alllow it to be terminated.
A mechanical clutch switch works, its just not as consistent and accurate as an electronic timer.
I need all the help I can get since I am on a street tire, no bars, no air shifter.

 

[gofast68]

Probably too late for you Lankee, but what about this:

http://www.msdpowersports.com/launch_master.html

Would this not work on our bikes? Any input from those more experienced would be great!

 

[gofast68]

I'm gonna try and keep this thread alive as I try and see if the MSD Launch Master will work with the Vmax. I have spoken with their tech support and the 'wasted spark' Launch Master 4351 may work. However, MSD is not real familiar with the Vmax wiring/ignition and unfortunately, I am not a pro at it either.

The 4351 will work with 2, dual tower coils in a wasted spark design. The question I guess I have is with the Vmax is that since it has 4 individual coils, is there one wire that fires a pair of them at once, making it very similar to 2 dual tower coils? Is that making any sense?

 

[lankeeyankee]

I'm gonna try and keep this thread alive as I try and see if the MSD Launch Master will work with the Vmax. I have spoken with their tech support and the 'wasted spark' Launch Master 4351 may work. However, MSD is not real familiar with the Vmax wiring/ignition and unfortunately, I am not a pro at it either.

The 4351 will work with 2, dual tower coils in a wasted spark design. The question I guess I have is with the Vmax is that since it has 4 individual coils, is there one wire that fires a pair of them at once, making it very
similar to 2 dual tower coils? Is that making any sense?

Anything can be made to work. Just as the Dyana DRL400 works with the VMAX, but you have to purchase 2 at 200+ a pop! So thats close to 5 bills for a 2 step.
All a 2 step does is cancel the spark to that cylinder every other fire and gets its input from the ignition coil pickups.