eXc Posted October 31, 2006 Share Posted October 31, 2006 (edited) Hey Guys, I've spent the last 2 hours searching and can't find it. Can anyone link me or; 1) tell me the differences between the R33 turbos. 2) Which one is best suited to the RB20. 3) I know you need to make sure you get "the elbow" for the conversion...but what is it? What does it look like? 4) Any other things I should do first? Fuel pump perhaps? Will I need a SAFC or similar aswell? Cheers Chris Edited October 31, 2006 by eXc Link to comment https://www.sau.com.au/forums/topic/141208-rb25-turbo-differences-between-models/ Share on other sites More sharing options...
r32matt Posted October 31, 2006 Share Posted October 31, 2006 (edited) Hey, Get the R34 Turbo! I have a R34 Turbo on my RB20 and it runs really well! Bolted straight on and used the RB20 Actuator to get the stock 10psi. Boost starts just before 3000revs and Full boost comes on just before 4000revs. Edited October 31, 2006 by r32matt Link to comment https://www.sau.com.au/forums/topic/141208-rb25-turbo-differences-between-models/#findComment-2630059 Share on other sites More sharing options...
salad Posted October 31, 2006 Share Posted October 31, 2006 1. i dunno but i would like to find out. i recently just too my S1 turbo off and replaced it with an S2 (because the S1 was rooted) and noticed that the design of the compressor wheel was a little different. the smaller blades did not protrude past the tip of the bigger blades. and the S1 has a steel compressor where as the S2 has a nylon compressor 2. the S2 is supposed to spool faster due to the lower rotational mass, and seeing as rb20s cant spool turbos well, this would be better. 3. the elbow is the compressor outlet. go have a look at your turbo, it is the first pipe that comes off of your turbo, and goes into your intercooler piping 4. fuel pump is definitely a good idea, and you really should do it, just in case. another good bang for buck mod is to get your ECU remapped. cheap and just as effective as stand alone ECUs. and come with all the stock knock sensors, cold start crap etc Link to comment https://www.sau.com.au/forums/topic/141208-rb25-turbo-differences-between-models/#findComment-2630150 Share on other sites More sharing options...
andylaurel Posted October 31, 2006 Share Posted October 31, 2006 and the S1 has a steel compressor where as the S2 has a nylon compressor alloy compressor... not steel Link to comment https://www.sau.com.au/forums/topic/141208-rb25-turbo-differences-between-models/#findComment-2630230 Share on other sites More sharing options...
salad Posted October 31, 2006 Share Posted October 31, 2006 ah, my bad, well some sort of metal that is heavier than nylon i was just going off what i had read on these forums Link to comment https://www.sau.com.au/forums/topic/141208-rb25-turbo-differences-between-models/#findComment-2630242 Share on other sites More sharing options...
WazR32GTSt Posted October 31, 2006 Share Posted October 31, 2006 the newer the better... Link to comment https://www.sau.com.au/forums/topic/141208-rb25-turbo-differences-between-models/#findComment-2630810 Share on other sites More sharing options...
oops Posted October 31, 2006 Share Posted October 31, 2006 anyone done/seen a highflowed r33 turbo on a rb20? would this be much laggier? would the highflow be different if it was a series 1 or series2 33? Link to comment https://www.sau.com.au/forums/topic/141208-rb25-turbo-differences-between-models/#findComment-2631401 Share on other sites More sharing options...
eXc Posted October 31, 2006 Author Share Posted October 31, 2006 i have seen some people (including SydneyKid??) say there was a ball bearing R33 turbo? Is that correct? Which series is it? Link to comment https://www.sau.com.au/forums/topic/141208-rb25-turbo-differences-between-models/#findComment-2631902 Share on other sites More sharing options...
mid life crisis Posted October 31, 2006 Share Posted October 31, 2006 i have seen some people (including SydneyKid??) say there was a ball bearing R33 turbo? Is that correct? Which series is it? they all are ball bearing Link to comment https://www.sau.com.au/forums/topic/141208-rb25-turbo-differences-between-models/#findComment-2631915 Share on other sites More sharing options...
salad Posted November 1, 2006 Share Posted November 1, 2006 (edited) all rb turbos except hr31 were ball bearing, and possibly cefiros werent aswell. but r32, r33 and r34 (not gtrs) were all ball bearing Edited November 1, 2006 by salad Link to comment https://www.sau.com.au/forums/topic/141208-rb25-turbo-differences-between-models/#findComment-2632638 Share on other sites More sharing options...
R32Abuser Posted November 1, 2006 Share Posted November 1, 2006 i thought 32's were journal bearings??? anyone care to clear this up? Link to comment https://www.sau.com.au/forums/topic/141208-rb25-turbo-differences-between-models/#findComment-2632657 Share on other sites More sharing options...
123456 Posted November 1, 2006 Share Posted November 1, 2006 The r34 turbo, is pretty laggy i think (has the same sized exhaust wheel as the vg30). In first it doesnt start spooling to about 3-3.5k so it makes taking off sort of hard, it does kick in hard at about 4.5k though. The performance increase wasn't all that great for me, i got a remap at the same time and achieved only 164 rwkw (on the same dyno, that i had had it measured, close to stock, at 133rwkw) i will upgrade to cgc hi flowed series 2 r33 turbo soonish Unless i get off my P's before then, and can get a GTR Link to comment https://www.sau.com.au/forums/topic/141208-rb25-turbo-differences-between-models/#findComment-2632919 Share on other sites More sharing options...
fr0st Posted November 1, 2006 Share Posted November 1, 2006 Does the R34 turbo have the same size rear housing as the VG30DET? I've got a series 1 R33 turbo to go on in the next few weeks, can't wait Link to comment https://www.sau.com.au/forums/topic/141208-rb25-turbo-differences-between-models/#findComment-2634225 Share on other sites More sharing options...
salad Posted November 1, 2006 Share Posted November 1, 2006 R34 and VG30 have same size rear housings most people would say its too big for rb20s Link to comment https://www.sau.com.au/forums/topic/141208-rb25-turbo-differences-between-models/#findComment-2634251 Share on other sites More sharing options...
Cubes Posted November 1, 2006 Share Posted November 1, 2006 S2 R33 Turbo is the best bet for spool & power on the rb20. Link to comment https://www.sau.com.au/forums/topic/141208-rb25-turbo-differences-between-models/#findComment-2634276 Share on other sites More sharing options...
Col-GTSX Posted November 1, 2006 Share Posted November 1, 2006 S2 R33 Turbo is the best bet for spool & power on the rb20. Second that... Been there done that... Was the best upgrade i ever did on my silver top RB20. Well that and a electronic boost controller. Link to comment https://www.sau.com.au/forums/topic/141208-rb25-turbo-differences-between-models/#findComment-2634540 Share on other sites More sharing options...
eXc Posted November 1, 2006 Author Share Posted November 1, 2006 Anyone know if the Series 1 is still worth putting on? Or should I wait to find a series 2? Are there any identification on them to prove what series it is? Cheers Chris Link to comment https://www.sau.com.au/forums/topic/141208-rb25-turbo-differences-between-models/#findComment-2635135 Share on other sites More sharing options...
salad Posted November 1, 2006 Share Posted November 1, 2006 (edited) S1 is definitely still worth it easy to tell the different compressors, one is aluminium and the other is nylon. they feel much different and the number on the comp cover is different i think the S2 has 45v4 and S1 has 45v3 may need someone to confirm, thats just going by my crappy memory Edited November 1, 2006 by salad Link to comment https://www.sau.com.au/forums/topic/141208-rb25-turbo-differences-between-models/#findComment-2635375 Share on other sites More sharing options...
tiesto Posted November 2, 2006 Share Posted November 2, 2006 what is 45v2 then? cause i got it off a stagea.. s2? Link to comment https://www.sau.com.au/forums/topic/141208-rb25-turbo-differences-between-models/#findComment-2635762 Share on other sites More sharing options...
salad Posted November 2, 2006 Share Posted November 2, 2006 (edited) well i searched around a little and came up with the numbers on the turbos are kinda random... this thread in particular Edited November 2, 2006 by salad Link to comment https://www.sau.com.au/forums/topic/141208-rb25-turbo-differences-between-models/#findComment-2636209 Share on other sites More sharing options...
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