Jump to content
SAU Community

Review On the Bolt-On MaXspeedingRods rb25 turbo.

r33tensh

By r33tensh,
in General Automotive Discussion

 Share

Recommended Posts

r33tensh Rookie

r33tensh

Posted
Posted

This is a review of the MaXspeedingRods Rb25 Bolt on turbo.

The Specs for this turbo are on there website and here is the link: https://www.maxpeedingrods.com/product/nissan-skyline-r32-r33-r34-rb25-rb20-max-21.75psi-turbo-turbocharger.html

As per any aftermarket turbo, it has its limits and it should be setup in a way that its following the manufacturer rating to get its maximum efficiency and power gains. Do not expect to push it to ridiculous psi and to its absolute limit as it probably wont end well. That goes for any Brand name turbos. These turbos are rated for 16-18 Psi. A youtube channel Leprechaun Laboratory tested these turbos with their dyno and looking at the results it starts falling of its efficiency at about 18 psi which is surprisingly good. This turbo is a little bit bigger compare to the stock turbos so from my experience it its a few hundred rpms laggier compare to stock but it is able to boost higher and harder compare to the stock turbo. Im running 15 Psi on my setup at the moment and it performs really well and the spools sound is definitely better compare to stock.

I think these turbos are great specially for the price. You get rid of the ceramic turbine blades on the stock turbo which means can boost higher with these turbos. The overall quality is surprisingly really good. bot compressor and exhaust side are balanced and every nuts and bolts have markings on it which states that its checked and tighten to specs. I know that these turbos might get a bit of hate as its a budget turbo but comparing it to the stock rb25, rb20 or neo turbos on the market and their price, these turbos are perfectly good and great for bolt ons.

Now for the negative. These turbos came with a really small wastegate hole as shown on the photo. YOU HAVE TO port the wastegate hole to avoid boostcreep! once ported works perfectly fine and performs well. If you are still running the stock hard lines for the oil and coolant lines, you have to slight work around and slightly bend the lines when installing it to the turbos. If you already have braided lines then that shouldn't be a problem.

Other than that these turbos are great as a bolt on replacement turbo as long as you treat it well and do not max it out to its limits.

IMG-7210.jpg

Ben C34 Grand Master

Ben C34

Posted
Posted
46 minutes ago, r33tensh said:

This is a review of the MaXspeedingRods Rb25 Bolt on turbo.

The Specs for this turbo are on there website and here is the link: https://www.maxpeedingrods.com/product/nissan-skyline-r32-r33-r34-rb25-rb20-max-21.75psi-turbo-turbocharger.html

As per any aftermarket turbo, it has its limits and it should be setup in a way that its following the manufacturer rating to get its maximum efficiency and power gains. Do not expect to push it to ridiculous psi and to its absolute limit as it probably wont end well. That goes for any Brand name turbos. These turbos are rated for 16-18 Psi. A youtube channel Leprechaun Laboratory tested these turbos with their dyno and looking at the results it starts falling of its efficiency at about 18 psi which is surprisingly good. This turbo is a little bit bigger compare to the stock turbos so from my experience it its a few hundred rpms laggier compare to stock but it is able to boost higher and harder compare to the stock turbo. Im running 15 Psi on my setup at the moment and it performs really well and the spools sound is definitely better compare to stock.

I think these turbos are great specially for the price. You get rid of the ceramic turbine blades on the stock turbo which means can boost higher with these turbos. The overall quality is surprisingly really good. bot compressor and exhaust side are balanced and every nuts and bolts have markings on it which states that its checked and tighten to specs. I know that these turbos might get a bit of hate as its a budget turbo but comparing it to the stock rb25, rb20 or neo turbos on the market and their price, these turbos are perfectly good and great for bolt ons.

Now for the negative. These turbos came with a really small wastegate hole as shown on the photo. YOU HAVE TO port the wastegate hole to avoid boostcreep! once ported works perfectly fine and performs well. If you are still running the stock hard lines for the oil and coolant lines, you have to slight work around and slightly bend the lines when installing it to the turbos. If you already have braided lines then that shouldn't be a problem.

Other than that these turbos are great as a bolt on replacement turbo as long as you treat it well and do not max it out to its limits.

IMG-7210.jpg

Post dyno graph

Ben C34 Grand Master

Ben C34

Posted
Posted
9 hours ago, r33tensh said:

i do not own the dyno graphs. here are leprechaun laboratory videos with proven dyno graphs 

 

Wow. So it still overboosts and behaves like sshit with the ported waste gate. Why would you bother?

hardsteppa Grand Master

hardsteppa

Posted
Posted

Cos " know that these turbos might get a bit of hate as its a budget turbo but comparing it to the stock rb25, rb20 or neo turbos on the market and their price, these turbos are perfectly good and great for bolt ons"

if you want a serious turbo then dont spend 200 bucks lol, but for the price, i did find mine to be great. 

r33tensh Rookie

r33tensh

Posted
  • Author
Posted

id imagine the stock turbos would do something similar. These turbos are good as a replacement rather than finding a 25 year old used oem turbo and installing it. Its not made to make huge power as its clearly not well sized to make big power but are great when u blow ur stock oem turbo and wanted a quick bugdet replacement.

  • Like 1
r33tensh Rookie

r33tensh

Posted
  • Author
Posted
1 hour ago, hardsteppa said:

Cos " know that these turbos might get a bit of hate as its a budget turbo but comparing it to the stock rb25, rb20 or neo turbos on the market and their price, these turbos are perfectly good and great for bolt ons"

if you want a serious turbo then dont spend 200 bucks lol, but for the price, i did find mine to be great. 

ofcourse these are no where near the competition compare to big name turbos like garrett but again are great for a quick replacement to the oem turbos

GTSBoy Grand Master

GTSBoy

Posted
Posted

No. Just no. Your statements are ludicrous. You would be better off not wasting the time and effort to put the bloody thing on when you blow up your stock turbo and just buy a $1000 Corolla to drive around in for 3 weeks while you send your blown up stock turbo off to be highflowed at Hypergear. Then sell Corolla for $1000 after the dirty Datto is fixed and back on the road. With the advantage that you don't have to f**k around with any of this "fix up the dumb fuuck shit that the Chinebay knock off who flung dung brand turbo has wrong from the factory" bullshit.

We do not need to be told how to f**k spiders around here. We have been doing it for 25 years. You cannot come on here and spout absolute bullshit that is demonstrably wrong without being called out.

  • Like 4
hardsteppa Grand Master

hardsteppa

Posted
Posted

i understand some people are scared of cheaper chinese made/branded stuff, but seriously, gotta say....25 psi and 8000rpm on the max rods, shitty P98 is far more of a concern for me than the rods are.

option A - buy a max turbo from ebay for $179 delivered, at your doorstep in 4 days, put it on in about an hour, drive happy-fun times while your other turbo is away being rebuilt for a few weeks. Have said turbo to then keep as a spare in the event it's needed again. Don't buy a $200 turbo if you're wanting to build a performance machine or make serious HP.

option B - drive around looking at cars for $1000 - while you're without a car, mind you - find a sh1tbox that's unlikely to pass roadworthy at that price, fix up, $$, and get said roadworthy/pay rego/transfer fees of $500+, get insurance, more $$ - then fk around for weeks trying to resell alleged vehicle once you're done with it...losing $500+ and lot of time/effort in the process rather than $179.  Wow...no not a great choice. I actually looked at that option in the same situation and did the math and thought, u fkn kidding me, no way. 

And, there's nothing i hate more than people posting saying " WE this, WE that" . It's an assumption that people speak for me, or anyone for that matter, as we all make up the 'we" on here, but I make up my own mind, i don't need anyone to speak for me. Once again, and time and time again, each to their own choice, more than 1 way to skin a cat, everyone's circumstances and opinions warranting different choices. Blah blah blah

  • Thanks 1

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • GTSBoy
      WTB noltec r32 front upper (camber) arms

      By GTSBoy · Posted

      I swear at my GKTech ones every time I have to take them apart and replace a spherical. But I wouldn't swap them for anything else. They absolutely slay every other option, at least in terms of how they actually work. You sure you don't want to live with bearings? I mean, they don't have "ball bearings". They are rod ends and sphericals throughout. Tough as nuts, even though I have found more than one way to wear them out.
    • The Bogan
      🚨 Need Advice! Overcharged for Engineering Report 🚨

      By The Bogan · Posted

      From when I was looking at getting the 86 engineered for the turbo, the joint said to put in a few euro 5 or 6 cats, then tune the car on a nice clean E85 tune When I was looking at a turbo for the MX5, it was basically the same thing, a couple of cats and a nice clean tune Although, it will depend on the year of the Jeep IRT emmisions standards required, and what mods are done, especially if it has a newer engine installed that requires a higher Euro
    • GTSBoy
      🚨 Need Advice! Overcharged for Engineering Report 🚨

      By GTSBoy · Posted

      Yeah - but it's not actually that easy. There are limits for HC, CO, NOx and particulates. Particulates shouldn't be a concern in any petrol engine unless trying to comply to the very latest Euro standard. But getting a tune right so that all the others stay within limits AT THE SAME TIME is not a trivial exercise. You couldn't possibly get it right by just guessing at the tuner's dyno, unless he had a 4 gas analyser up the pipe, which is not often the case these days. It used to be. Every decent shop that did "tune ups" (as opposed to tuning) would have a 4 gas analsyer. Perhaps there's still quite a few of them around these days. But most "tuners" are only watching O2 and power readings.
    • Shoota_77
      🚨 Need Advice! Overcharged for Engineering Report 🚨

      By Shoota_77 · Posted

      Slight segway but the most expensive part of the whole thing which I would have thought would only be required for an engine size/type swap, not a VIV test, is emissions testing.  That's when you get into the big bucks.  I can't remember the exact price now but I got quotes for the GT-R based on swapping to RB30 (not that anyone bothers doing it legally anymore...) and it was around $4500 just for that alone.  The guy that does them manipulates the tune on the vehicle to make sure it passes.  The cheaper option is to book into Kangan Batman Tafe (I think that's where it was) and hire their tester.  Allegedly you're not allowed in there with the car though so not in a position to tweak anything to make sure the vehicle passes.  I'm sure in this day and age of ultra tuneable ECU's you could get the tuner to program a special efficiency (clean) tune that emits the lowest amount of particulates possible that would pass the test.  It might only make 50kW's but as long as it passed who cares!
    • The Bogan
      Neil's R33 Gts-t Build

      By The Bogan · Posted

      I'm sure he has left signs, or, he is looking down, laughing That's my cunning plan for when I leave, lots of half finished projects, with no rhyme or reason of where I was actually up to, just to keep everyone on their toes
×
×
  • Create New...