Take one magna add one Rotrex Super Charger

[john boy]

I can confirm this however they only had 1 fabricator... luckily it was just after my mates x5 had been completed enough and just requires fine tuninig...

will be good to see a comparison once the raptor kit is up and running..

I was talking to Tom who owns bullet last week before i went to Mackay, i think there will
still be a kit for the magna, He told me that they just were not going to do any Rotrex
installs at the moment, because of there fabricator starting a new job, but he is still
going to be working for them in the afternoons, Because i was told he will be doing a new bracket on my pulley set up this week when they have my car.

[john boy]

Seriously thou:

I'd REALLY like to see some pics of the belt arrangement and idler/tensioner. If you're not keen to post them could you PM me so I can make other discrete arrangements with you. Thanks.

Here are a few pics of the pulley set up a little hard to see all the pulleys,i did a quick
drawing but the angles are not perfect.

[EZ Boy]

Thank you for the pics and diagram. This is one of 2 serious belting options I am considering. What shortcomings are in the current bracket? Is the tensioner spring-laden or threaded rod type?

Again; well done JB and Bullet for putting your neck out and having a go - and a pretty good go at it too.

Which Rotrex SC did you settle on. Did Bullet select or did you go thru the maps with them?

[john boy]

Thank you for the pics and diagram. This is one of 2 serious belting options I am considering. What shortcomings are in the current bracket? Is the tensioner spring-laden or threaded rod type?

Again; well done JB and Bullet for putting your neck out and having a go - and a pretty good go at it too.

Which Rotrex SC did you settle on. Did Bullet select or did you go thru the maps with them?

Not a problem, the tensioner in the car at the moment is a threaded rod type, but i want them to change it to the spring loaded tensioner so it stops losing tension, and they are
also adding a new bracket to change the way the belt wraps around the alternator.
I let Bullet pick which Rotrex was installed, they went for the C30-94, i think one reason was the HP it makes, and the physical size of the Super Charger, they had to consider how much room they had to mount the Super Charger and set up all the pulleys, hope this helps you out, i will take a few new pics when i get the car back so you can see the way the new set up looks. Here is a chart on the Rotrex
Characteristic
Symbol
C30-64
C30-74
C30-84
C30-94
Power range
]range
100-280 Hp
150-300 Hp
200-320 Hp
250-400 Hp
Max mass flow rate
]flow
0.26 kg/s
0.28 kg/s
0.30 kg/s
0.37 kg/s
Drive unit-ratio
N
1:9.49
Drive efficiency
96%
Pulley diameters availablepulley
70, 75, 80, 85, 90, 95, 100, 105, 110 mm
8 rib steel - PK profile
Unit weight
M
5.1 Kg (11.2 lbs)
Rotational direction
Rindirection
Clockwise rotation, as seen from pulley side
Peak input shaft speed
max
12,600 rpm
10,500 rpm
Peak impeller speed
max
120,000 rpm
100,000 rpm
Min inlet oil temperature
Toil,in
-40
Max inlet oil temperature
Toil,inma
+80
Mounting torque Pulley bolt
M10
50Nm (37 ft-lb)
Mounting torque Bracket bolts
M6x78
9Nm (6.6 ft-lb)
Mounting torque Oil banjo bolts
M10x1
21Nm (15.5 ft-lb)
Power output is dependent on engine type, cooling, cam-timing etc.