• We are no longer supporting TapaTalk as a mobile app for our sites. The TapaTalk App has many issues with speed on our server as well as security holes that leave us vulnerable to attacks and spammers.

Search results

  1. H

    Twin charging make sense

    I am running 7.6:1 on my twinscrew and the trottle respons is way above anyhing else I been riding. Don't worry about the comp...
  2. H

    hurricane blocks

    Thanks Gunnerthesnowman! Yes you are right, it's all about tuning and thanks to some other guys, this sled is working :-). 2 years a go this engine did run on E85 and at 30 lbs of boost it produce 512 hp(if I remember correctly). The block and headmod by Hurricane was not done yet but I now...
  3. H

    hurricane blocks

    Yes with GT plus 109.
  4. H

    hurricane blocks

    Well, it's working for us and with no issues so far! They remaped the hole system in dyno for 3 days and the motor run so nice I could almost use it in the mountains! I have the dynosheets here but I don't no how to post it! I have a pictures of the fuelbarrel were the datainfo is! Someone...
  5. H

    hurricane blocks

    The timing is 32 degrees at wot! Motek ignition! I don't remember how many seconds the dyno session became, but that I can find out Take care you to!
  6. H

    hurricane blocks

    I don't no if you are missing something:-). We race 660' and with no methinjection! The race fuel is Sunoco GT Pluss 109 RON. [/img]
  7. H

    hurricane blocks

    We have an Apex where block and headporting is done by Hurricane. This is a dragsled running on snow! Dynoed in Norway 28 # boost 480hp. Fuel 109 oct. Turbonetics turbo. Motor still running perfectly!
  8. H

    Twin Screw Supercharger on RX1, Apex, RS.

    Hammer! We have not tryed this laminova system yet, but Tikka tould mee they have been calkulating theoreticaly the system at 8 pounds of boost, with outside airtemp at 68F the temp after SC is 280F and after laminova elements the temp goes down to 86F. That means at wintertime when the outside...
  9. H

    Twin Screw Supercharger on RX1, Apex, RS.

    We are using 3 c-43 laminova-elements infront of the trottles. If this has some interest, my sled is a 06 Attak. First season I ran this sled stock, so that Tikka could prepere the idea about the twin screw. This year we installed low comp piston, carillo rods and headshims. The comp is 7,8:1...
  10. H

    Twin Screw Supercharger on RX1, Apex, RS.

    Hopefully the Apex prototype, witch is mine, will be ready before the season starts. Mats Tikka has been working on this project for at least 2 years. The twin scruw, the belt system and the laminova aftercooler are in place. Now he is working on the extra injectors.
  11. H

    Attak RPM

    I got my first Yamaha since 88, and I am imprest the way it performs. I only got two rides on it so far (40 MILES) My concern is that in powder conitions it only hits 9000 rpm. Down the lake on hard pack snow it starts at 9500 and walks up to 9700 rpm. I know this engine shifts at 10700 rpm. Is...


Back
Top