Cubes Posted June 28, 2003 Share Posted June 28, 2003 btw.. I made 164rwkw which is 221hp on 1 bar of boost. Its not just about peak power its the mid range that gets you there so the RB25DET will be quicker in accelerating to the peak power. Considering though the RB20DET does do extremly extremly well in the power department. Especially considering the RB25DET has VCT, bigger turbo, higher static comp ratio etc.. Link to comment https://www.sau.com.au/forums/topic/9984-rb20t-vs-rb25t-power-output/page/3/#findComment-406421 Share on other sites More sharing options...
Jay95R33 Posted June 28, 2003 Share Posted June 28, 2003 Remember guys that it's about greater average power, not just greater outright power. But it's amazing what the RB20 can do for a 2lt motor, there's no doughting that. J Link to comment https://www.sau.com.au/forums/topic/9984-rb20t-vs-rb25t-power-output/page/3/#findComment-406443 Share on other sites More sharing options...
rbs13 Posted June 29, 2003 Share Posted June 29, 2003 i just bought a rb20et silvia. has fuel pump. adjustable reg, exhaust, boost controller and some tuning by sub zero (dunno if i should be worried or not ) and made 220.5rwhp. with a upgraded clutch and 4.8 diff gears its heaps of fun!!!! Link to comment https://www.sau.com.au/forums/topic/9984-rb20t-vs-rb25t-power-output/page/3/#findComment-407114 Share on other sites More sharing options...
Cool Hand Luke Posted June 29, 2003 Share Posted June 29, 2003 what is your number plate and what color is your car? I dragged a s13 silvia with a 6 and beat it tonight . Link to comment https://www.sau.com.au/forums/topic/9984-rb20t-vs-rb25t-power-output/page/3/#findComment-407620 Share on other sites More sharing options...
BOOSTD Posted June 29, 2003 Share Posted June 29, 2003 works auto: you can drag me! Link to comment https://www.sau.com.au/forums/topic/9984-rb20t-vs-rb25t-power-output/page/3/#findComment-407697 Share on other sites More sharing options...
RB20LagWagon Posted June 29, 2003 Share Posted June 29, 2003 Err he is doing 12.8s now boosted, and he knows what turbo he has. Link to comment https://www.sau.com.au/forums/topic/9984-rb20t-vs-rb25t-power-output/page/3/#findComment-407722 Share on other sites More sharing options...
BOOSTD Posted June 29, 2003 Share Posted June 29, 2003 12.8 stock turbo 32, no chance. what turbo does works auto have?? Link to comment https://www.sau.com.au/forums/topic/9984-rb20t-vs-rb25t-power-output/page/3/#findComment-407730 Share on other sites More sharing options...
Cubes Posted June 30, 2003 Share Posted June 30, 2003 Depends if he is running slicks BOOSTD. Link to comment https://www.sau.com.au/forums/topic/9984-rb20t-vs-rb25t-power-output/page/3/#findComment-408885 Share on other sites More sharing options...
BOOSTD Posted June 30, 2003 Share Posted June 30, 2003 hehe ,yeah traction helps :burnout: Link to comment https://www.sau.com.au/forums/topic/9984-rb20t-vs-rb25t-power-output/page/3/#findComment-409288 Share on other sites More sharing options...
funkymonkey Posted June 30, 2003 Share Posted June 30, 2003 Just to throw some spice into the conversation, my CA18DET did 214rwhp fully tuned with an SAFC etc, and my RB20DE does 120rwhp with no tuning, no oilchange running 95RON fuel its not about displacement sometimes... Link to comment https://www.sau.com.au/forums/topic/9984-rb20t-vs-rb25t-power-output/page/3/#findComment-409691 Share on other sites More sharing options...
gjb977 Posted July 1, 2003 Share Posted July 1, 2003 Go the RB25's !!! Link to comment https://www.sau.com.au/forums/topic/9984-rb20t-vs-rb25t-power-output/page/3/#findComment-410747 Share on other sites More sharing options...
Cubes Posted July 1, 2003 Share Posted July 1, 2003 bah RB25.. Go the RB30DET.. Link to comment https://www.sau.com.au/forums/topic/9984-rb20t-vs-rb25t-power-output/page/3/#findComment-410778 Share on other sites More sharing options...
gjb977 Posted July 1, 2003 Share Posted July 1, 2003 What's higher than a 30 ? Then go that !!! Link to comment https://www.sau.com.au/forums/topic/9984-rb20t-vs-rb25t-power-output/page/3/#findComment-410781 Share on other sites More sharing options...
rev210 Posted July 1, 2003 Share Posted July 1, 2003 Originally posted by RB20LagWagon Err he is doing 12.8s now boosted, and he knows what turbo he has. Boostd's got a confirmed RB25DET stocker turbo and 12.9 seconds. Whale's win !!! YAYYYYY! Link to comment https://www.sau.com.au/forums/topic/9984-rb20t-vs-rb25t-power-output/page/3/#findComment-410816 Share on other sites More sharing options...
Cubes Posted July 1, 2003 Share Posted July 1, 2003 Didn't he say the turbo's front cover was different? AND.. how long did it last running 1.1bar? Link to comment https://www.sau.com.au/forums/topic/9984-rb20t-vs-rb25t-power-output/page/3/#findComment-411289 Share on other sites More sharing options...
Mase Posted July 1, 2003 Share Posted July 1, 2003 Snoop, are you doing the conversion yourself? If you are then i'd honestly put about $2500 aside for things such as timing belt, fuel pump, filter, oil, sparkies etc. Second of all, you will need to do something about the sump hitting on the sway bar and the clearance of the engine ie hitting the roof. Are you good with wiring? If not then put aside about 300 at least for getting someone to do the wiring and adjusting. If you already have a sr20det then stick with it. I promise you you'll be better off. Link to comment https://www.sau.com.au/forums/topic/9984-rb20t-vs-rb25t-power-output/page/3/#findComment-411343 Share on other sites More sharing options...
BOOSTD Posted July 2, 2003 Share Posted July 2, 2003 The front cover turned out to be stock aswell, I originally thought it was a VG30 item but that would mean it would be smaller than the RB25. The turbo is still running fine after two and a half years( with a greddy cooler which I think increases its life) I am having it rebuilt because a friend of mine was helping me pull it to bits and snapped my turbine off the shaft with a badly aimed hammer....=( Rebuild specs b4 u ask are compressor- T04B V trim top 52mm major 72mm VG30 .7 A/R exhaust housing and turbine Link to comment https://www.sau.com.au/forums/topic/9984-rb20t-vs-rb25t-power-output/page/3/#findComment-411379 Share on other sites More sharing options...
Cubes Posted July 2, 2003 Share Posted July 2, 2003 Ahh.. I thought you pulled it off because you said it was making noises...?!?!? Link to comment https://www.sau.com.au/forums/topic/9984-rb20t-vs-rb25t-power-output/page/3/#findComment-411400 Share on other sites More sharing options...
Mase Posted July 2, 2003 Share Posted July 2, 2003 oh yeah, the $2500 was including the rb20 front cut. Link to comment https://www.sau.com.au/forums/topic/9984-rb20t-vs-rb25t-power-output/page/3/#findComment-411403 Share on other sites More sharing options...
BOOSTD Posted July 2, 2003 Share Posted July 2, 2003 Joel: thats correct, the noise was found to be coming from the Exhaust to head gasket because of four broken studs. Link to comment https://www.sau.com.au/forums/topic/9984-rb20t-vs-rb25t-power-output/page/3/#findComment-411447 Share on other sites More sharing options...
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