yoshiii335 Posted August 25, 2016 Share Posted August 25, 2016 The rb20 and rb25 Hello, I found some info from testing done on the r32 gtst and the r33 gtst. Its often said seemingly on websites that the rb20 is a motor lacking torque under 3000 rpm and that the rb25 is better, stock vs stock. I know that the rb25 is a more powerful motor and has more torque stock vs stock rb20. But in these test I found, it seems that the rb20 in a r32 gtst stock compared to a rb25 in a stock r33 gtst is not that bad. Link to comment https://www.sau.com.au/forums/topic/466486-the-rb20-and-rb25/ Share on other sites More sharing options...
KiwiRS4T Posted August 25, 2016 Share Posted August 25, 2016 You never give up do you? Those graphs are not "tests" or dyno charts - they are computer models invented by some one. The harsh facts are that the RB20DET makes 265Nm The RB25DET makes 294Nm and the RB25 Neo DET which everyone is telling you to get makes 343Nm which is significantly more than the RB20 1 Link to comment https://www.sau.com.au/forums/topic/466486-the-rb20-and-rb25/#findComment-7769993 Share on other sites More sharing options...
WMDC35 Posted August 25, 2016 Share Posted August 25, 2016 An extra 500cc, a better head with vct, who leaves them stock? Put a 350kw turbo on both & see what What is the point of this thread & why are we replying ffs Link to comment https://www.sau.com.au/forums/topic/466486-the-rb20-and-rb25/#findComment-7770007 Share on other sites More sharing options...
admS15 Posted August 25, 2016 Share Posted August 25, 2016 Ls1 may be a better option 2 Link to comment https://www.sau.com.au/forums/topic/466486-the-rb20-and-rb25/#findComment-7770010 Share on other sites More sharing options...
R_34 Posted August 25, 2016 Share Posted August 25, 2016 A guy in france put his r32 gtst bone stock on a dyno, here is the sheet : f**king small turbo an still max torque beyond 5000 rpm. Stock wise the gap might not be that big but who here is still stock anyway. I have a 20, a mate of mine have a 25 and the 25 is much nicer to drive despite having a taller diff ratio and bigger wheels. So yes the 20 is a bitch down low, at high rpm i prefer the feeling of my shitty 20 (mostly thanks to the 4.36 diff I have) but below 4000 this is a no brainer. Link to comment https://www.sau.com.au/forums/topic/466486-the-rb20-and-rb25/#findComment-7770012 Share on other sites More sharing options...
hardsteppa Posted August 25, 2016 Share Posted August 25, 2016 Yoshii you need to realise theyre both internal combustion engines which are dinosaur technology now, same basic design for over 100 years. You need to be progressive and look towards the hybrid technology Porsche, Fiat and Rocklasser are using or possibly something nuclear-fission powered if you're serious about this car of yours being half decent...otherwise i'd have to assume that this thread is just a troll...? 1 Link to comment https://www.sau.com.au/forums/topic/466486-the-rb20-and-rb25/#findComment-7770013 Share on other sites More sharing options...
tridentt150v Posted August 25, 2016 Share Posted August 25, 2016 You want torque did you say???? 1 Link to comment https://www.sau.com.au/forums/topic/466486-the-rb20-and-rb25/#findComment-7770016 Share on other sites More sharing options...
Dose Pipe Sutututu Posted August 25, 2016 Share Posted August 25, 2016 M156 Link to comment https://www.sau.com.au/forums/topic/466486-the-rb20-and-rb25/#findComment-7770034 Share on other sites More sharing options...
WMDC35 Posted August 25, 2016 Share Posted August 25, 2016 Novarossi Link to comment https://www.sau.com.au/forums/topic/466486-the-rb20-and-rb25/#findComment-7770043 Share on other sites More sharing options...
Dose Pipe Sutututu Posted August 25, 2016 Share Posted August 25, 2016 M157 with basic mods Link to comment https://www.sau.com.au/forums/topic/466486-the-rb20-and-rb25/#findComment-7770049 Share on other sites More sharing options...
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