Fuujin Gets 7.5 second spec cage in preparation for 2008. We've just finished the work to make our Drag GTR ( and current European 4WD record holder ) even more compliant and safe to meet the rules for 7.5 second doorslammer cars. The car was previously spec'd to 8.5 second rules however late last year we started to dip into the lowe 8's with a best of 8.27 @164mph which was the milestone for the next phase of our cars development. Since the inception, the cars purpose is to run quicker than 7.67 and with each stage we upgrade it further towards that.
You can see in the pictures the extra tubing installed around where I sit as well as the extensive tubing under the car.
Note that the car still retains its full floor and arches as any 'normal' GTR would, making it the first true doorslammer spec GTR in the world now that we've upgraded. We could cut a lot more out of the car including the floor now but that wouldn’t make it a real GTR to me so we've left it in place and the extra weight we've added for the spec upgrade will just result in us using more boost to compensate!
Right now the car is awaiting a new prototype turbine from HKS Japan, we currently use a T51R SPL which is rated to 1000bhp however HKS are finalising their new 35th anniversary turbine which is the T62R and will be capable of running 1200bhp and we'll be the first car to run it. This turbine should give us the power required to run a a high 7 second pass!
Also recently upgraded is the ignition system as seen here, we are now using a combination of the Do-Luck Power Kit ( which moves the coils to the outside of the head instead of having them sat inside the rockers ) and the brand new and not yet available TM Works coil packs which are noticable by their red casings in the picture. Both things were upgraded to give us a better ignition system as we will run even more turbo boost in future, so far we've only used 2.2bar and we plan to use a lot more in future so the upgrade was essential at this point.
Until HKS deliver the new turbo we wont be running the car just yet as there are little more gains to be had in its current setup that is worth running again for ( every time we run the engine it takes life from it ). I think we could push a 8.1 as we are and a little more boost on the current T51 but its a lot of effort to achieve it and more a minor gain so we've decided to wait and bolt on more power. Our previous 60'ft times indicate we are on course for 7 second passes if we had more power but we'll see, we expect that with more power we may have to rethink the 60fts as we may not get the same consistency from the outset, we'll have to wait and see how that will change, hopefully it wont but until we don’t it we don’t know.
Considering already running 1.2 60'fts and 164mph terminals feels insane, I cant wait to see what the extra 200-300 bhp feels like !!
-Andy Barnes
www.sumopower.com
www.do-luck.co.uk