I'll update this one pretty regular, Clay don't worry.
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I'll update this one pretty regular, Clay don't worry.
Jeesuss, just driving the thing sometimes is scary! Dont get to sleep much behind the wheel, I assure you. Love it though.Quote:
Originally Posted by Falc'man
I must be seeing things. Bloody hell mate what an effort. Well done!
One thing I have learned from having a Centri S/C installed and running it for a couple of years and that is this; If you have a Centrifugal Supercharger installed on your vehicle, install a Catch Can right away. It’s not that blow-by is a concern, the concern is the vapours and the miniscule amounts of liquids which end up in the system. These liquids and vapours need to go through a catch can which has in the body of the can a decent amount of material like swarf, (stainless steel pot scourers from the supermarket being perfect). This material allows the vapours and liquids to stick and remain captured within the body of the catch can.
This gunk would other wise travel on in the system and find itself attached to the centri parts of the supercharger, seriously reducing the power output of the supercharger. The manufacturer of my Raptor has also warned that continued use without a catch can, will damage the ceramic bearings in the system ultimately causing failure.
Good to know.
As pointed out in the build thread, the Raptor came off again and went up to Mackay for service. The belt driving the gear box was replaced with a better item and a new billet impeller installed. See the build thread for results with this item.
During the last 12 months I've been testing a better cooling system for the Raptor gear box along with Raptor in Mackay. We found that a couple of computer fans available from Jaycar are a good option. My lad knocked up a trumpet for the fans output changing the shape of the output from a box like shape to a round shape to suit the flexible pipe I was using for the job. Well we set it up making one fan force feed the other having researched the idea and discovered that in this arrangement increases the output by some 80% over one unit. The flexible hose in use now passes through under the headlight and into the car beside the Raptors air cleaner where it connects to the lower input on the gear box. this means the hose is always in cool air as it travels to its task.
This has been a very effective cooling method.
The next item to be discussed is a 'sprag clutch' to take the load offf the drive and crank snout when backing off the throttle.
Good to see it coming along Simon. Any pictures of the beast from the past couple of months. Certainly one of the best RTV's out there by a mile?
Not recently Mate.
Been busy with other stuff. Got plans though. Had to replace the headlining last week, the other was collapsing all over. Another feature of modern motoring.
This year I've got W2A coming and going to toss a 'shipload' of dynomat into the cabin, just for fun.
How is it like to drive compared to say turbo? It works in a similar way right building boost as revs rise, except its driven by a belt rather than exhaust gases?
Yeah, about right, it builds as you build revs, it does get very interesting over 3k revs though; and over 5k its diabolical, and that’s just the screaming noise. I've got a 6k red line and the thing just keeps cookin' all the way up to red line. Disconcerting if you are used to your favourite beast running out of breath somewhere in the rev range. It's an interesting way to get shoved in the back.
Backing off is interesting too - anything over 3k causes some sort of reverse torque steer through the steering wheel........especially if you take your foot off completely. Next time I service the thing, I'm gunna get a Sprag Clutch fitted.
That will take some load off the snout of the crank shaft : < https://en.wikipedia.org/wiki/Sprag_clutch >.