jabber800
New member
Does anyone have a way to test these race modded CDI's??? I suspect a problem with one I just purchased.. Sled pulls rpm to 9400 then slides down to 8900 and powers back up to 9400.. This cycle repeats itself.. I tried a stock CDI on the same sled and it would pull 9200 rpm's and flatten out no surging with the stocker just not enough power to pull peak rpm due to the lack of timing in the box ...
Any thoughts??
Dan
Any thoughts??
Dan
no1chevyboy
New member
are you sure your getting enough fuel maybe weak fuel pump or a restriction?
jabber800
New member
I would think if fuel was restricted I would experience a lean condition on a long pull.. I had no signs of this.. I will however try a mach Z fuel pump this weekend to eliminate this possibility.. THX for the input...
valin
Active member
You need to borrow my pump again? Come get it.
jabber800
New member
You probably won't have a use for it for awhile I'm guessing.. We going for a ride this weekend??
valin
Active member
Yup, Sunday for sure, and probably Saturday as well.
jabber800
New member
Give me a call when you know what your doing..
harness racer
New member
riding , fri, sat , sun, mon, 4 days off , let me know , i would like to go too!!!!!! no cheating for the trail ride !!!!!!!!lol...lol....
jabber800
New member
Pure stock, you can tech me Vince!!! I'll be running my Apex... May run 102 mph on a good day with a tail wind!!! I'm betting I get to that speed pretty quick though. LOL
valin
Active member
100% stock big bore srx.
harness racer
New member
we just bought a 4 stroke frontier , Dan i dont think it will do , 60 , i cant stop laughing when i get on it , it has a bucket seat and alll...loll...........
note ; Dan I dont know if this is even possible , but what if you figured out a way to use a sx mag ***. . with sx harness and cdi , i think the curve is indefininate , or somthing like that , just a thought
note ; Dan I dont know if this is even possible , but what if you figured out a way to use a sx mag ***. . with sx harness and cdi , i think the curve is indefininate , or somthing like that , just a thought
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jabber800
New member
Already have it figured out if the fuel pump doesn't work.. Sx curve is great just how do you control the power valves?? HUMMMM Think we can make these work Valin!!!
cumminsdsl
New member
i'm workn on building an improver srx and was told on an other forum that an sx cdi has good timing but the powervalve have to be locked open??? although i was never explained to how to do so, if so it would save me a whole lot of headaches than trying to locate a race box for a 99'
harness racer
New member
Like I Said ...just A Thought ... Not A Very Good One I Guess ...
jamie
Member
run Ski-Doo,Polaris power valves
jamie
Member
what year of box do you need ? I might a couple
jabber800
New member
Getting the power valves to work with the SX ignition is no big deal Vince.. I was going to run an MSD window switch to drive the servo motor.. Locking the valves open will work well for someone like me doing a 2000 ft radar run but I'd sure like them to be working if I was running 500ft on grass.. JMO might actually be faster with valves locked open.. Have yet to try this.. I'm running a 1999 600 SRX Jamie.. Have pretty much decided to replace the complete ignition system at this point..
on grass if you are leaving at such a high rpm anyways why not have them open?
jabber800
New member
It might work OK on the grass but as I said JMO.. Would really have to test both ways on a good set of timers.. You get that cat rocking this season Josh?? You should get it up here in the next couple weeks, we will have ideal conditions for speed runs..
stock gear on the cat, a little voodoo and it runs out of gear in the mid 120's in very short order. No spray, yet..It can definately pull another 10 mph for gear but 5 more would be ideal for trail/lake and would put me into the 130's w\o a problem.