Jump to content
SAU Community

Recommended Posts

24 minutes ago, SimonR32 said:

Direct back to back change... Same boost, 30psi

6870 made even more power with extra boost while the 9180 was all out

Yeah not too surprised that the EFR9180 was out, I would 100% expect the 6870 to outflow it - and by a bit of a margin.   The boost threshold however is a definite surprise.   Interesting how some results can vary!   Hard to know what to make of it.

On 4/25/2019 at 2:27 PM, SimonR32 said:

The precision is the ones that comes on way earlier and makes more power...

I'd like to see the transient response make up for that deficit 

Which rear housing was on the efr?

  • 3 weeks later...

Hey all, 

Bit of an update from late last year. 

Precision 6062, built s1 rb25det, e85 etc

Got it tuned last year and it made 431kw @26psi apparently the turbo was maxed out. Dyno dynamics roller dyno. 

I decided to change the wastegate springs from 14psi to 21psi, fixed a boost leak i found underneath the intake manifold ( idle control- cold start valve area ), hpi evolve radiator and decided to run a viscious fan again.  Might have been a few other minor changes. 

We stopped at 29psi as we were a little worried about the arp 2000 headstuds not handling much more. Turbo seemed to be still going and I think we could have gotten a bit more out of it if the headstuds weren't a limiting factor. 

This is on a mainline hub dyno so it is 710hp at the hubs. Still quite happy with the result and I'm sure the 6062 could keep pumping. I attached a video of the run, hopefully it works. 

We used Real Dyno hub dyno and Brad Sheriff from Boost Automotive Tasmania tuned the car. 

20190515_163330.jpg

  • Like 2
  • 2 months later...
38 minutes ago, reaper said:

Nope haven't seen anything. I'm trying a 7275 this week and will compare to my old 6870.

What was the 6870 like? I know I could search this post but who the hell knows how far back I may need to go to find a post....

I have a 6766 with a 1.0 rear and I don't know if the lack of driving but its started blowing blue smoke the other day. highly unlikely to be the  engine so it might be time to up the turbo a little

4 hours ago, feedmyfast said:

Hi Guys,

sorry it has been so long. here are the results from my 6466 @40psi. The car is a different animal now, had to get some drag radials to put down the power.

Loca Dyno - 873.jpg

What's the rest of your engine setup?
I also have a 6466 to go on mine.

24 minutes ago, iTzTMG said:

What's the rest of your engine setup?
I also have a 6466 to go on mine.

S1 RB25, Kelford 270 cams, supertech valve train (stock sized), CP pistons (stock bore and compression), Manley rods, balanced crank/ block. Otaku manifold, ID2000s

  • Like 2
6 hours ago, feedmyfast said:

Hi Guys,

sorry it has been so long. here are the results from my 6466 @40psi. The car is a different animal now, had to get some drag radials to put down the power.

Loca Dyno - 873.jpg

Have you raced it? what mph did it run if you have?

Edited by ido09s
6 hours ago, feedmyfast said:

Hi Guys,

sorry it has been so long. here are the results from my 6466 @40psi. The car is a different animal now, had to get some drag radials to put down the power.

 

Ha! That is ridiculous, nice work!  That's gotta be one of the more stout RB25 setups out there, being SAU people will probably make dyno comments but realistically - an RB25 with 270deg cams and 40psi pumped through it on E85 is going to make some serious power :)

What is the spool like?  There is no rpm scale on the dyno plot (NFI why people print plots like that), so a bit hard to tell.   Be very interesting to see how it goes at the strip, hope you have a decent trans! :D

 

4 hours ago, Lithium said:

Ha! That is ridiculous, nice work!  That's gotta be one of the more stout RB25 setups out there, being SAU people will probably make dyno comments but realistically - an RB25 with 270deg cams and 40psi pumped through it on E85 is going to make some serious power :)

What is the spool like?  There is no rpm scale on the dyno plot (NFI why people print plots like that), so a bit hard to tell.   Be very interesting to see how it goes at the strip, hope you have a decent trans! :D

 

Also very curious to know what the spool is like! Looks like it would be an absolute weapon, good job!

9 hours ago, feedmyfast said:

S1 RB25, Kelford 270 cams, supertech valve train (stock sized), CP pistons (stock bore and compression), Manley rods, balanced crank/ block. Otaku manifold, ID2000s

What turbine housing size - also single/split pulse + gate setup?

Perhaps drop something into the RB25 dyno results page

Strong result.

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...