Jump to content
SAU Community

Recommended Posts

Fitting the std 33 turbo will be cheaper, high flowing your 20 turbo will cost lots, i called turbo tech a while back when i screwed my turbo and they wanted a kidney.... at least....

As far as performance, most people get at least 250 hp at the rears on a std 33 turbo as long as you have some for of fuel controlling device ie SAFC or something... as for high flowed 20 you would probably have to dig about for the results.

Reliability, the 33 turbo is still standard and can (im not saying they all do) shart a rear turbine wheel off... The high flow would be steel wheels and capable of longer life and higher boost. std 33 turbos dont really like 15 pounds of boobs. I do.

Ive personally gone from a std 20 turbo, to a std 33 turbo and now a high flowed 33 turbo, the high flow 33 turbo is un-goddam-believeable, the power up the top end is awesome, but at the same time ,smooth.

At a guess i'd say the high flowed 20 would be better for midrange?

Hope this helps.

Good luck with it all.

Be prepared to have a few bolts snap, or gasket replacement, or, and this is my personal favourite, "you have snapped manifold bolts, 4 to be precise".... or generally some form of pain in the ass. 32's are known for the "EXTRA WORK NEEDED" line from your mechanic.... *looks at my wallet* >_<

Still there is nothing quite like it when all of a sudden at 3500 rpm it pushes you back into the seat.

ENJOY!

33 turbo for cheap horsepower (get a series 1 item, mine has been going hard on my RB20 and now RB30). ~250rwhp out of an untuned RB20, just make sure you have a new fuel pump as the old stocker probably won't keep up.

VG30 turbo is the same size as an RB25 Neo turbo.

I have a neo hiflow on my Stag, it's stupidly large, takes ages to spool but makes 320awhp @ 12psi.

Nissan went with the nylon wheel to get it to spool faster. I really don't think they had people running them at 12-14psi in mind.

Ask around and see how many people have blown series2 turbo's when winding a bit of boost into them.. my series1 turbo has been running 12psi on my RB20 for over a year and now on my RB30 for 1.5years, still going strong.

I have seen countless topics on max boost for the rb25 turbo, to be honest i havent notcied any larger number in s2 failures then s1 but that doesnt mean your not wrong. I have seen lots of results comparing 10psi to 14psi and the max power figure didnt change, however the midrange was improved on the higher psi runs. So then in theory if the S2 turbo spools up quicker as you say, then that would be an improvement in the midrange without needing to up the boost anyways. But thats just my opinion at the end of the day i cant say for sure but thats just what i reckon. Sauwa wouldnt be the same if i didnt get to disagree with you Bubba. :(

HOW DARE YOU DISAGREE WITH ME?! :(

Nah, a couple of members had their s2 turbos shit themselves not longer after they got the cars and wound some boost in.

The main thing that goes in RB20/25 turbos is the exhaust turbine (due to it being ceramic and seeing excessive heat when leant on). I have seen failures of the compressor wheel in s2 turbos but not in s1 (probably due to the fact that it is a steel wheel).

Lastly, if mine can survive the hammering it took on my RB20 AND survive the hammering on the RB30 (where it is actually a restriction, I'm sure the thing must glow when I spend much time around 6000rpm!) it must be a good thing :D

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Hi...so a "development" here aswell The swap is "done" and car went "test drive" BUT it seems the clutch(maybe gearbox?) is a little bit sad? I bought this clutch kit https://justjap.com/products/xtreme-heavy-duty-organic-clutch-flywheel-kit-nissan-skyline-r31-r32-r33-push-type "Problem" is that the first gear is hard to put into and it seems that the clutch is not disengaged. It was not the problem with the old clutch...(or like sometime the first gear would not get as easy specialy when the fluid was cold) So? Can it be like...bad "install" or is the clutch wrong ((it should not have been) i done research to get the right one) Or is this "normal" with new clutch and needs to be break in? 
    • @Duncan I can try  and thanks i did not thought about VIN and part numbers for 33/34. @GTSBoy yeah it looks like iam gonna do that  
    • Forgot to include this but this is the mid section of my steering rack that looks like it has a thread/can be turned with that notch mentioned in the post:
    • Hey everyone, Wanted to pick some brains about this issue I'm having with rebuilding my 33 rack (PN is 49001-19U05). All of the tutorials/videos I've seen online are either R34 or S Chassis racks which seem to be pretty straightforward to disassemble but this process doesnt carry over to my rack. Few of the key differences that I've noted The pinion shaft on the other racks bolt on with 3 torx bolts: Whereas my rack bolts on with 2 allen head bolts: These changes are pretty inconsequential but the main difference is how you pull the actual rack out of the housing. The other skyline/s chassis racks can be taken out by tapping the rack out of the body with a socket and it just slides right out. I'm unable to do that with my rack because there's a hard stop at the end that doesn't let the seal/shaft be tapped out. Can also see a difference in the other end of the rack where mine has a notch that looks like you're able to use a big wrench to unthread 2 halves of the rack whereas the other racks are just kinda set in with a punch. My rack: Other racks: TLDR; Wanted to know if anyone has rebuilt this specific model of steering rack for the R33 and if there were any steps to getting it done easier or if I should just give this to a professional to get done. Sorry if this post is a bit messy, first one I've done.
    • I would just put EBC back on the "I would not use their stuff" pile and move on.
×
×
  • Create New...