Jump to content
SAU Community

Recommended Posts

Hi all,

I'm very tempted to buy a 3071R in my quest for 240rwkw+ out of my rb20. I already have a GCG ball bearing high flow but thought with the 3071R i'd prob have the same lag but more power.

I have searched and searched but cant find anyone real results or info on fitting this turbo. Most of the threads on here talk about results they might get or comparing sizes to other turbos.

I know I'll need a new dump pipe which is fine but if there is any known issues with installation then I'm not going to bother, I know a mate from work had problems with his 3076 on his 25, had to use a spacer to clear and the standard lines were impossible to fit.

Apparently some people have also had problems with boost control, cant get it under 22psi.

Any info much appreciated.

Cheers.

Link to comment
https://www.sau.com.au/forums/topic/367200-garrett-3071r-on-rb20/
Share on other sites

I have searched and searched but cant find anyone real results or info on fitting this turbo.

Apparently some people have also had problems with boost control, cant get it under 22psi.

Any boost control issues have been related to the 0.63 turbine - but only when installed on a RB25 engine. You're going to need to stick some decent boost into a 20 if you want to head up/over the 250kW mark.

It's a fairly straightforward process bolting a GT30 snail onto the manifold and doing water/oil lines. Smaller comp housing might not even require a spacer for clearances. Dump pipe to suit should be readily available, or even a secondhand one if you look around.

It seems that the Kando units are getting good results on RB20s too, check a couple of posts and youtube links that Roy has posted up.

Edited by Dale FZ1

Unless you plan for 260rwkw+

IMO stick with the GCG item. At least it'll not be "too bad" in the response stakes and still deliver 240rwkw on around 20psi

Lot of cost to go 3071 for not much extra top end and more lag

For that sort of boost to ony be making 220rwkws either there is a blockage in the exhaust (cat or collapsed muffler), inlet is sucking shut, or you simply have no ignition in the tune. Think that a std R33 turbo makes around 190rwkws on 14-15psi. So with another 506psi up it would be makign similar power...and a hi flow with its bigger wheels should be flowing more then a std turbo or a 2530.

Its a rb20 highflow from what i was told, not to sure how much smaller it is compared to a rb25 highflow. Might be similar to a HKS2510?

I really have no idea what its making to be honest. And for 20psi I would expect more then 220 which is why I think the tune is rubbish.

Saying that russman made 230 odd with a hks 2530 on 20psi and I think this turbo is of a similar size.

Edited by eightsixboy

Thats not bad on a 20 lag wise.

Honestly more then likely not bothering anymore, the one i was looking at is apparently a cropped version so not really that good a turbo, plus after a re tune i might make 230+ so for an extra 10rwkw it might be a waste of time and money.

I'm running a 2540 on my rb20. Running 16psi and making 220rwkw. Tried running 18psi but it was pinging. Even though im using a ems computer my tuner told me he wasn't able to tune out the pinging. It comes all in at about 4100rpm but i think that feels pretty laggy. Anyways nearly got the s1 rb25 ready to drop in. Will be trying the 2540 on the rb25.

GT2540s are rubbish along with GT2510s . They are examples of the earliest HKS spec Garrett ball bearing turbos that didn't have "Power with Response" . They have thankfully been discontined and replaced by later things like the four and twin six cylinder versions of the GTSS and the GTRS turbos .

In this day and age you'd call a GT2540 a GT2876R because it uses a GT28 NS111 turbine and a non GT era T04E 76mm 46T compressor wheel .

These would be laggy for a GT28 based turbo even on an RB25 I think . Two ways to look at it - either too much compressor for the turbine or not enough turbine for the compressor .

A GT2510 is literally a GT2530 with a short changed turbine .

A .

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

    • Seat of the pants assessment of the new intake: The car is way less "doughy" when hitting the loud pedal, especially off idle when stopped or in traffic, I did use a cheapo lazer thermal thingo to measure the temp around where the pod filter got its air, it was between 55 - 60°C, in saying this the car was shut off and not moving, so the OEM intake pipe was not supplying any fresh air to where the pod was when the car was at least moving A weird bonus was induction noise on the throttle in the cabin increased a bit,  I was worried that I was actually going to lose some of that induction noise I love so much, outside though, when I got the daughter to do a WOT drive by pass for me, the induction noise has increased alot when on the throttle, not quite ITB doort, but well up there I'm extremely happy with the results and have been exploring the country roads in the region  As for house mods: 1.New front fence is up and is awesome, it really upgraded how the joint looks from the street, and the added security is nice 2. Electricians have replace some interior lights, and with more lighting in the garage, a few new motion detecting lights out the front above the garage, front room, and at the front door, which I have already found heaps helpful coming and going, also now has fancy pants CCTV all round the house The only hold point for power though is the solar and batteries due to supply issues, although this will happen over the next few weeks 3. I have done a heap of landscaping out the front and I'm almost ready to do a new small retaining wall with some nice blocks to replace the brick and cemented in rocks around the raised garden beds cemented in river stone "was the fashion at the time" the house was built. I currently have a pallet of retaining wall blocks and 2 bulka bags of 20mm blue metal to replace the wood chip that is in the raised garden beds around the house 4. I now have 3 big raised garden beds for out the back to grow some vegetables, about 70cm high, 200cm long and 100cm wide 5. My 2 compost bins are already pretty full with brown, green and kitchen waste from the landscaping I'vedone so far, but they will probably take a few months to break down, so anything else that gets chopped, trimmed, and kitchen waste will just start filling the base of the raised garden beds to about 30cm before I start throwing 40cm of good compost, and stuff, for the vegetables to grow in, I'll need a few ton of compost and soil, but the local supplier can sent me bulka bags of the stuff Basically the logs, wood chips and a few strategically placed rocks for drainage, will give the beds some good organic materials down low to break down over time, and they will hold moisture during the warmer months to save the water in my big arse water tank if we don't get alot of rain So, all in all, the car and house mods are going well, and I'm really enjoying being retired, I sleep in too 0700 and slowly plod around inside until I feel like actually doing anything, and only work in the yard for as long as want, which has actually been alot over the last few weeks,  although when you look at it, it seems that not a huge amount of work has been done,  until I look at the before I started the work pics Happy days and good times indeed 
    • hahaha yeah. Plan is to get side skirts and probably just rear pods. But going to do them one-by-one. I've got a set that I really like from RHDJapen, but that one isn't shipped to AU. So need to find someone who can get it for me
    • Here's an idea, answer the questions I asked you as they are trying to work out WHY the LSD will be binding up in a straight line.
    • You haven't driven many modern cars then have you? Most of them have sfa steering feel with their stupid electric bullshit steering systems.
×
×
  • Create New...