Took the rotorbug down the strip this weekend

[dubber91]

well aero will play a part, but its a squared relationship and only has major effect above 70mph

Aero drag = roe x v(squared) x Coef (drag) x Area

the bug is full weight, i\'d guess at around 1000kg. theres a weigh bridge up the road though so may give em a fiver to see what it weighs
gearing wise its a stock box.
1:4.37 Final drive, 3.78 1st, 2.06 2nd, 1.26 third, 0.89 4th. with 165/80 tyres!!!!
 
it certainly is interesting. the reduced weight leads to quicker acceleration (what you want) but it looses its legs up top due to gearing. I reckon with a decent gearbox i\'d be in the 13s, theres a crap rev drop first to second....

Steveo

[monkey-fd3s]

Congrats on the time - how was Big Bang?

Once you start getting a big faster with the big wheels it\'ll be the ring and pinion that goes, esp the 4.37

[dubber91]

yeah i reckon a built box is next on the list!

[FLAT4MATT]

ah a man after my own heart...

Although I\'m keeping the rotary in the FD and the flat 4 in the bug





and the FD...

[dubber91]

and why on earth would ya want to do that?

[monkey-fd3s]

hehe

You can\'t beat a nice 2276 on 48 IDA\'s - or a blown methanol autocraft engine

Hey Flat4Matt - I assume the yellow bug is an old VWDRC car from when they used to have the super street class  Those were the days... Cold Sweat, JMR\'s race car, Moody... ah the list goes on....

[FLAT4MATT]

Yeah mate the yellow car was a regular in the 90\'s best time of 11.09 at 139mph running a 2276 on DRLAs with a squirt of the old laughing gas all fully street legal etc...

I bought it about 18 months ago with a view to rebuilding it and racing it myself but I STILL aint done anything with it so it looks like i\'ll be selling it on some time in te near future to fund the blue one.

[dubber91]

just an update for some of you.....although some of this project is top secret......

Basically some parts collection. Ive found a built gearbox:




mmmmmmmmm greasy!

needs a clean! Heres the spec

1st - 3.80
2nd - 2.06
3rd - 1.48
4th - 1.04
Diff - 4.125

Cheap mans uprated diff (heavy shimming sideplates etc etc) steel shift forks....early case.

Let me know what ya reckon to those ratios....

then i splashed out on some nice seats :Talking1



bloody uncomfortable but they should save me about 15kg!

then its a **** load more work for me (and some others ) over the winter to get her ready for spring and the dragstrip..... Hoping for 12s!

[travellinbob]

Cool seats steve! not too comfy for long jouneys but for around 12seconds at a time they should be spot on!!!

[dubber91]

yeah! theyre tig welded aluminium...just wish i could afford the intermediate oval seats rather than the economies.......im sure im going to get piles on long journeys!

Steve

[FLAT4MATT]

Nice very nice

[dubber91]

right well it seems i have inadvertently bitten off more than i expected.....im sure i can still chew down on it but its a right mouthfull!

Seems whilst im there were talking about a short axle conversion (using shorter driveshafts which are somehow stronger than longer axles) which also means more clearance for wider tyres at the back.


ontop of that ive started making up my own rear disc brake conversion. Im using some rover Vittesse calipers coupled with a home made caliper mount.

Ive then got to figure out how to make up some \'hubs\' upon which to mount some rotors (discs without centres). Thaughts at the moment are based around stock beetle rear drums turned down to remove all of the braking area. They then will need further turbing to fit inside some porsche 914 (same stud pattern) disc rotors.

Just ideas at the moment but we\'ll see how it goes!

Steve