I am using a Stage 1 Hahn Kit with the port fueler on a 05 Busa. The only issue I have is that I have to drop the turbo to swap the Oil Filter. I called to Hahn and the suggested a "shorter filter" this suggest less oil volume and is a place I am not sure I want to go. Has anyone else solved this problem? Is anyone aware of a oil filter relocation Kit?
Hahn Stage 1 Kit and Oil FIlters
- Thread starter nhgunnut
- Start date
If you use a K & N filter (KN-138) you will not have to drop your turbo . . .
Thanks for the tip it works perfectly
I have had the Hahn set up for 2 years. I am not a racer so my opinions reflect that.. I like it a lot. I use my busa as my primary commuter . It is well mannered and easy to use in traffic. I have never had any heat problems and for a "1 box setup" I have no complaints. That said if I were doing it again I think I might look for a setup that used an external waste gate. I have to confess , I Went Turbo because at the time I weighed 360 lbs and wanted the same acceleration ass the 150 lbs guys that designed the bike. I have since lost 130 lbs so it is a hole other machine to me.
I am new to the bikes, but in my car days we would weld the flapper valve on the internal wastegate and install an after market waste gate for better control. Those here would know better than I if this works as well on the bikes, but I imagine it would. Good job on the 130, I aint small myself and the weight is so much more noticeable on the bikes.
You cannot weld the flapper valve on internal gates (at least not on any of the Mitsubishi turbos like the Super 16, or Super 20). This is because the passage that the flapper covers (when it is closed) is the path through the turbine housing in which exhaust must flow in order to "gate" the turbo. Instead, the flapper is removed and piping is added into the body of the housing; this piping goes to the outside of the turbo where the external gate is added. I had this modification done to my Hahn several years ago by Powerhouse motorcycles in New York. After this, I added a gear based boost controller.
www.powerhousemc.com
www.powerhousemc.com
P.U. for a lot of reasons (like proper gating and header cracking), BUT YOU GOT ME THERE!
I found it much easier to take a dremmel tool and cut the flapper out. While i was working in there i removed material on the exhaust deck to improve flow.We machined out the 'plugged 'area on the turbo and welded in the mount for the wastegate. I am on my second Hahn header and i dont understand the oil filter issue. I have always used the oem filter.
View attachment 1249797
View attachment 1249797
Yes, thats me, but it obviously was not with the Hahn kit I had with the external gate mod - that setup was only pushing 375 RWMP @ 18# boost with a Super 20 shootout turbo, ported head, stock cams, Stage II fuel rail, and larger intake and exhaust valves . . . also a super-streetable every-day back and forth to work bike -Ron was that you on anotherpost saying you were pushing 600 hp? In that case a non sarcasticis owed to you!
My new 600 HP setup is a modified RCC Ultra kit - and although I can run it around all day on pump gas (93 octane) with NO TIMING PULLED at 20# boost, thats only worth a little over 400 RWHP. . . if I want to go above 20# boost, I have to use C16, still with no timing removed . . . 30# boost puts the RWHP over 500, and 40# will net me 600, which is just silly on the street . . . yes, props go to RCC
As I said in a prior post, I've been riding turbo street bikes since 1978- why? - because I love the fact that every time I ride it fast it still scares the sh*t out of me -everything else is pretty dull in comparison
), but would want a lot more seat time to sharpen my riding skills before trying something like this. I geuss for now I am a LURKER....might be a good project for next winter though.....Is it smaller? I just found out I have the same problem
Is it smaller? I just found out I have the same problem
Why does hahn not say in the directions use KN oil filter?
turbobusa2000
Registered
Because they dont care!
