Supercharger

[2strokespirit]

Old alpine supercharger with the BIGGER pulley, around 0.38 bar... The chip was never connected here to optimize for the charger... This was with 31" mud terrain tyres, my speedo is spot on the gps with the bigger tyres... I only put my foot down from just before 2 sec in this vid... It will easily do a 8s if you launch hard, but I don't want to put to much stress on my drive train/diff or clutch....

http://www.youtube.com/watch?v=dyctFtNQhXg

[Robbomaz]

LOL.... Seriously? When did you move and why?

We were in SA from 68 to 77, lived in Maseru in Lesotho & went to school in Ladybrand in OFS, then later moved to Ladybrand. Before that we were in Pretoria. 63-68 in Lusaka, Zambia and then Salisbury, Rhodesia (Harare Zimbabwe as it is now)
We moved to Au in the mid 70's....my fathers contracts with the SA Police and Lesotho Mounted Police were ending, plus looked like all hell was about to break loose in SA, Not quite 'Casspir school bus' stage when we left but heading that way..

[Robbomaz]

Hi guys...
Been following this thread for years...

We ran 0.48 bar (7psi) on 95 with stock injectors with no problems on the old alpine chargers... (201 rwhp) I have the graph somewhere... (122rwhp before charger)
My friend runs a vortech charger at 8.7 psi with stock injectors and piggyback with HUGE inter cooler... producing 240 RWHP!!!! Its been running for that for about 140 000km with NO issues whatsoever... It runs stock compression as well....
The inter cooler makes a HUGE difference to get the temps down...
I prefer the roots charger as the centrifugal ones has a turbo like lag...

This is my build....
Hope to crank it in the next 2 months...

http://4x4community.co.za/forum/show...rcharging+6vd1

We have done one for a guy who tows a big caravan, used stock ECU & injectors, added a 7th injector and controller, boost 7.5psi and 245hp on our dyno on 33" rubber. Intake temps were up, an intercooler would make a big difference and probably some more hp as well. It goes hard with no load!