Differential Options - 3.14 or 3.38

 

Had some debate about different differentials fitted to the Hayabusa and the difference between a 3.14 & 3.38, used a sheet from online to calculate maximum speeds in gear. The calcs are based on a 11,000 rpm rev limit and 195/50/15 wheels and tyres.

By changing the settings on the sheet I calculated that in 6th gear, 70mph on the 3.14 is 5,500rpm and on the 3.38 it's 6,000rpm.

3.14 Differential

3.38 Differential

Stuff for Sale - All Sold

Bought a job lot of SBD parts that were fitted to an OMS Hayabusa race car. Wanted the SBD throttle bodies and throttle blipper kit for clutchless downshifts. Will fit these after IVA is out of the way. I had a few spare items for sale:

MBE 992 ECU and loom for a Gen 1 Hayabusa, loaded with a stock Hayabusa map. 

Standard Hayabusa 24-1 trigger wheel from 2002-2007 engine. Needed if you are running an earlier engine with a newer ECU

MBE 985 Can Bus USB Interface including ADP3 cable. 

MBE 995 CAN Bus Display with cables. 

MBE Flat shifter m5 thread. 

ALL ITEMS NOW SOLD

Waiting for IVA

All done now, waiting for a date for the IVA test, MNR will collect the car to set up the geometry and then the car will be off to Damian at Daytuner for a rolling road tune. Will be interested to see what power the RPE engine makes.

MNR will check out the car and then take it for IVA, just waiting for a date now....

 

Gel Coat Repair

The damaged part of the tub is the bottom front corner and is hardly noticeable, measured out a little gel coat and then mixed with a few drops of hardener. I cleaned out the damaged area and cleaned with acetone, then I applied the gel coat to the repair and left over night. 

The gel coat set hard over night,I then shaped with different grade wet and dry paper, starting with 400 grade and then 800 and finally finishing with 1200. Once all of the scratches were removed with the wet and dry, I polished the gel coat with a blue pad and some 3M ultrafina polish. Will finish with a little wax later.

Ride Height

Lifted the car off the axle stands and put it on it's wheels for the first time. Front end was extremely low and had a slight mishap when removing the jack, chipped the front bottom corner of the tub. Bought a gel coat repair kit some time ago so will give it a try later.

Removed the nose cone to allow easy jacking from the front via the crossmember.

Gave Leon a call for the ride height details and he told me that it is 110mm front and 130mm rear, measured near the front bottom wishbone and near the rear arch. Adjusted the front shock absorber spring tension by hand until the collar became difficult to turn. Then adjusted the push rods until the ride height is 110mm and also that the bottom wishbones are about level with the floor.

Jacked up the rear end and adjusted the rear shock absorbers by hand until the spring was being held by the collars. This gave a rear ride height of 130mm, re checked the front and adjusted the push rods to give 110mm.

Seats and Harnesses

Drilled the rear mounts on the chassis and bolted through, fixed in place with 7/16 nuts. Re fitted boh seats and bolted with m10 nylocks.

Boot Lid Panel #2

Thought a little about how to fit the boot lid and rear panel. As I wanted a clean fit without screws and also the ability to remove the panels later, I decided to use Velcro to fix the panels in to place over tiger seal. 

Bought some Velcro from eBay and fitted to he chassis, then fixed the hook side in place and removed the backing and fitted the panels. 

Padded Wheel Centre

In getting ready for IVA I needed to fit a padded centre for the steering wheel. Managed to get some foam when I dropped in to Europaspares, I got a sheet of fabric from eBay and used superglue gel to fix in to place. 

Removed the dash push buttons for the time being and cut the foam shapes and fabric using a template made from the Momo wheel. Wrapped the foam layers with the fabric and fixed around the wheel, glued the fabric in to place.

Back Together

All back together now, just need to fit the harnesses, seats and the rear view mirror.