08yannch Posted November 24, 2008 Share Posted November 24, 2008 hi i have a RB25DET and it is stock really. and i was thinking about replacing the turbo with a supercharger like the ones that they use in the holden LS supercharger upgrades that u can get. and it would be nice to know if any body else has put a supercharger on, if it will work, what i will need, and what do i expect to get out of it. im looking a supercharging it because as i understand it a turbo restricts the exhaust and has two turbines one to power the other which will lower the efficiency of the turbo especially in low rpm were as supercharger will be powered by a belt and is most likely to be more efficient. if i am way of track then plz tell me and yes i have seen http://www.skylinesaustralia.com/forums/Su...er+turbocharger i am looking a the performance between a turbocharger and a supercharger and also the price difference and what is needed for a upgrade Link to comment https://www.sau.com.au/forums/topic/246180-supercharger/ Share on other sites More sharing options...
joeyjoejoejuniorshabadoo Posted November 24, 2008 Share Posted November 24, 2008 a supercharger is basically a boring version of a turbocharger. its good for low down power but the top end is no where near as fun. it takes power from the crank and uses that to suck in air and force it in a turbo uses exhaust gasses that are already there. get in a car with a real turbo and see what you think Link to comment https://www.sau.com.au/forums/topic/246180-supercharger/#findComment-4280062 Share on other sites More sharing options...
joeyjoejoejuniorshabadoo Posted November 24, 2008 Share Posted November 24, 2008 not to mention the rest of your enine is setup for a turbo... it would be a boring and pointless conversion Link to comment https://www.sau.com.au/forums/topic/246180-supercharger/#findComment-4280072 Share on other sites More sharing options...
TiTAN Posted November 24, 2008 Share Posted November 24, 2008 + expensive. there is a reason more people aren't doing it. Link to comment https://www.sau.com.au/forums/topic/246180-supercharger/#findComment-4280118 Share on other sites More sharing options...
joeyjoejoejuniorshabadoo Posted November 24, 2008 Share Posted November 24, 2008 if you really wanna make it worthwhile it from the ground up with a 3lt bottom end stroker kit, twin turbo and a centrifugal supercharger running into a positive displacement supercharger hope you brought your wallet Link to comment https://www.sau.com.au/forums/topic/246180-supercharger/#findComment-4280156 Share on other sites More sharing options...
bubba Posted November 24, 2008 Share Posted November 24, 2008 HP is cheaper with turbos you will also find a lot of people have "been there and done all that", why be the guinea pig? unless you're a lotto winner Link to comment https://www.sau.com.au/forums/topic/246180-supercharger/#findComment-4280193 Share on other sites More sharing options...
08yannch Posted November 24, 2008 Author Share Posted November 24, 2008 thanks for ur input every body so every body is basically saying why try and re invent the wheel right? Link to comment https://www.sau.com.au/forums/topic/246180-supercharger/#findComment-4280220 Share on other sites More sharing options...
08yannch Posted November 24, 2008 Author Share Posted November 24, 2008 if any body has any thing else to add it will be grate Link to comment https://www.sau.com.au/forums/topic/246180-supercharger/#findComment-4280231 Share on other sites More sharing options...
joeyjoejoejuniorshabadoo Posted November 24, 2008 Share Posted November 24, 2008 if you drop an anvil and an orange off a building they will hit the ground at the same time... but if you want to kill a motherf**ker.... its teh anvil every time Link to comment https://www.sau.com.au/forums/topic/246180-supercharger/#findComment-4280251 Share on other sites More sharing options...
bubba Posted November 24, 2008 Share Posted November 24, 2008 lol. nice analogy. Link to comment https://www.sau.com.au/forums/topic/246180-supercharger/#findComment-4280264 Share on other sites More sharing options...
joeyjoejoejuniorshabadoo Posted November 24, 2008 Share Posted November 24, 2008 d00d wtf is with peadobear in your sig? ; Link to comment https://www.sau.com.au/forums/topic/246180-supercharger/#findComment-4280288 Share on other sites More sharing options...
bubba Posted November 24, 2008 Share Posted November 24, 2008 One of the WA mods being a smartass Link to comment https://www.sau.com.au/forums/topic/246180-supercharger/#findComment-4280337 Share on other sites More sharing options...
seraphyn_r33 Posted November 24, 2008 Share Posted November 24, 2008 a friend of mine had a supercharged rb25/30 in his vl commy. The amount of time and money it cost was really not worth it. Basically everything needed to be custom made and fabricated, even down to the supercharger. Dont get me wrong, the car went really well, but its a lot cheaper and easier to upgrade the turbo on an rb25 Depends on how much your willing to spend to be different Link to comment https://www.sau.com.au/forums/topic/246180-supercharger/#findComment-4280459 Share on other sites More sharing options...
PM-R33 Posted November 24, 2008 Share Posted November 24, 2008 (edited) im looking a supercharging it because as i understand it a turbo restricts the exhaust and has two turbines one to power the other which will lower the efficiency of the turbo especially in low rpm were as supercharger will be powered by a belt and is most likely to be more efficient.if i am way of track then plz tell me Incorrect, a turbocharger is more efficient because it is using something from the engine to make power which is not being used for anything else ie. exhaust gases. Edited November 24, 2008 by PM-R33 Link to comment https://www.sau.com.au/forums/topic/246180-supercharger/#findComment-4280886 Share on other sites More sharing options...
bozodos Posted November 24, 2008 Share Posted November 24, 2008 Some people were all into doing this on their N/A VL's 3 or 4 years ago, basically isn't worth it for the cost, especially on a small displacement motor. Their usefulness on V8s is even being brought into question with the proliferation of reletively cheap off the shelf turbo kits floating around these days. Link to comment https://www.sau.com.au/forums/topic/246180-supercharger/#findComment-4281074 Share on other sites More sharing options...
R34GTFOUR Posted November 24, 2008 Share Posted November 24, 2008 to be different, run both... Link to comment https://www.sau.com.au/forums/topic/246180-supercharger/#findComment-4281325 Share on other sites More sharing options...
Marco-R34GTT Posted November 24, 2008 Share Posted November 24, 2008 Twin-scroll supercharger + HKS 3037 turbo = FTWbaby!!! YYEEEEOOOWWW Link to comment https://www.sau.com.au/forums/topic/246180-supercharger/#findComment-4281350 Share on other sites More sharing options...
Phobic Posted November 25, 2008 Share Posted November 25, 2008 the cost to get everything custom made is huge, like someone said before. just go turbo the method is tried and true Link to comment https://www.sau.com.au/forums/topic/246180-supercharger/#findComment-4281940 Share on other sites More sharing options...
mid life crisis Posted November 25, 2008 Share Posted November 25, 2008 i ran a torana at speedway many yrs ago that run a gm 471 blower with a ait split pulse t4 turbo blowing into the top of the blower . it was awseome to drive the blower got it of the line like a cat with deep heat on it;s balls and the turbo kept enough air into it down the straights . it was a old 186 block with a 221 falcon crank with a alloy phill irvin head and mechanical endlee methanol injection . got 3 seasons out of that set up b4 it dropped the crank out of the block every thing was custom made and cost a mint back then but you could not buy anything off the shelf . won many a race beating 350 powered cars i loved it lol Link to comment https://www.sau.com.au/forums/topic/246180-supercharger/#findComment-4281971 Share on other sites More sharing options...
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