Supercharger?

[HolyEvil]

hey there guy.. just wondering if any of the 'line owners here have a supercharger instead of a turbo?

cheers

[sinistaGTR]

there was a thread ages ago on this im pretty sure

[SECURITY]

check out the naturally aspirated performance section

someones dropped a v6 and supercharged it.

[fEkuaR]

check out the naturally aspirated performance section

someones dropped a v6 and supercharged it.

i think you mean a v8 and supercharged it . unless there are two guys one with a v6 and one with a v8

[StockyMcStock]

i have a supercharged 25/30 but it also has a turbo, so i'm not really sure if it fits the bill?

[cameron]

Isnt it a bad idea because somthing on the crank/harmonic balancer breaks?

[stolen_s15]

There was a bloke in Victoria who had a 33 that was supercharged, he would come to cruises occasionally. From what i understood his setup was quite limited in terms of the power it could make, possibly stock NA internals im not really sure. Thats about all I know apart from the fact it was black with some terrible Fast and Furious/Transformer graphics all over the side.

[HolyEvil]

check out the naturally aspirated performance section

someones dropped a v6 and supercharged it.

I actually am looking for info about supercharging a RB engine..

not sure if I'll go that route.. but just looking for more info =)

cheers

[SECURITY]

yeah, my bad. it was a v8.

http://www.skylinesaustralia.com/forums/in...showtopic=35764

[StockyMcStock]

my twincharge is basically a supercharged RB25/30 with a turbo added, so all the principles are very similar to running just a supercharger - except this is vastly better:

there's more info here:

http://www.calaisturbo.com.au/showthread.php?t=79101

http://www.calaisturbo.com.au/showthread.p...ight=dyno+today

http://www.performanceforums.com/forums/sh...ight=twincharge

cheers

Edited December 20, 2006 by StockyMcStock

[HolyEvil]

it looks interesting mate..

how much did you have to spend to get a supercharger on it?

and how the 2 run together?

cheers

my twincharge is basically a supercharged RB25/30 with a turbo added, so all the principles are very similar to running just a supercharger - except this is vastly better:

there's more info here:

http://www.calaisturbo.com.au/showthread.php?t=79101

http://www.calaisturbo.com.au/showthread.p...ight=dyno+today

http://www.performanceforums.com/forums/sh...ight=twincharge

cheers

[Adriano]

If you are able to make brackets yourself, you could do one very cheap, use a second hand commodore v6 blower(about $500 on ebay)beware, it will be a lot of fabrication, but should be good for 180rwkw with heaps of low down torque.

[StockyMcStock]

i bought the blower from USA ebay for $300 AUD delivered, they came standard on a heap of cars over there and are hence much cheaper than here in australia. the later model ones also have improved internal design which is nice.

after purchase price, i had to have the drive snout shortened by a machinist which was $200. i bought some steel for 20 bucks and made the brackets myself. tensioner bearing was maybe another 30 bucks.

the other main cost is in the billet pulleys you can see in the drive system. i used a pair of cam gears and had a toolmaker lathe up some billet pieces for them to bolt to. there is a cam gear bolted to the crank, and another on the end of the power steering pump shaft. this is then bolted to the billet 8PK drive pulley, and the whole lot has a single retaining nut on the power steering pump shaft. it's a very neat system and allows for clearance to the radiator and other things which i won't go into. this was $500 for all the machining work.

you could certainly do it cheaper, but i wanted this setup to be very reliable and well balanced, which it is.

running the blower only is great, until you get the revs up. the lack of top end power will only be disappointing to your average punter. it drives a whole heap better on the street though, with bulk low-end power.

fitting the turbo only was the opposite, massive top-end power but nothing below 4000rpm.

with the two combined, and the multiplying effect of the two compressors, you have a very nice end result - as seen in the power delivery on the dyno. an almost ideal power curve of that shape, with that peak power on that boost level is just not able to be replicated on any 25/30 i've ever seen. the torque delivery is flat as a tack, so no matter what RPM you're doing you have the same torque at the wheels. this makes the car much easier to drive, and stay on the edge of wheelspin by controlling the throttle.