Jump to content
SAU Community

Recommended Posts

So the 2.6 is actually over cammed for its capacity?

Steve that IS 390 rwkw (and on stock injectors). Lol first posts states rwhp.

I am in Canberra but the car was tuned at Insight Motorsport. The Superlap Tilton Evo was there while my car was getting tuned. Thing is a weapon (obviously) and beautifully put together.

Scott is tuning the car eh...good stuff. When were you there? I was in there Friday...did you see the Rotorbishi?

Edited by DiRTgarage
  • Replies 48
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Posted Images

Scott is tuning the car eh...good stuff. When were you there? I was in there Friday...did you see the Rotorbishi?

Scott, his Dad, and Greg are great. Very professional outfit. They were all sharp despite having pulled incredible hours to get the Evo ready. Scott told me today that they were on the Evo until 6am on Saturday too but you can tell they live for it.

I was there on Wednesday and Thursday.

Did see the Rotorbishi, amazing peice of engineering. Couldn't stop crawling over / under it .

Im sorry 390rwkw with r34 n1's amd stock injectors, something isn't adding up here

thats because its hp

so you saw the Rotorbishi...but did you hear it?

Edited by DiRTgarage
thats because its hp

so you saw the Rotorbishi...but did you hear it?

OK for the record;

The car runs 600cc nismo inj and produced 390 rwhp as per the first post and as Paul has indentified.

As for my statement ...'Steve that IS 390 rwkw (and on stock injectors). Lol...' please note the Lol as it clearly can't be the case.

Didn't hear it but saw the size of the frigging exhaust. Got to push the thing in and out of the workshop a couple of times, was fun with that set up, never had a flyweight car feel like 1700 kg before. Unfortunately that was the extent of its rotorvation.

OK for the record;

The car runs 600cc nismo inj and produced 390 rwhp as per the first post and as Paul has indentified.

As for my statement ...'Steve that IS 390 rwkw (and on stock injectors). Lol...' please note the Lol as it clearly can't be the case.

Didn't hear it but saw the size of the frigging exhaust. Got to push the thing in and out of the workshop a couple of times, was fun with that set up, never had a flyweight car feel like 1700 kg before. Unfortunately that was the extent of its rotorvation.

so it only needed 3 rebuilds instead of 6 :cheers:

I'm still putting money on the turbos are getting to their efficiency...

The N1s are good on a stock RB26 at around 24PSi...

Now you're pushing 17PSi through...

So an absolute pressure of 31.7PSi...

Now add in the fact you're ingesting an extra 15% of that air, rather then it being a restriction...

So you're really pushing ~37PSi...

Take back off the 1 atmosphere...

You're pushing around 22/23PSi "comparison" wise...

But you have to think, at the same time, when you push 15% more air in, you're pushing MORE then 15% more air out... (Heat, expansion, yada yada yada) you're just pushing those poor turbos WAY past their efficiency range...

Get the maps out, and do the maths... Those turbos are out of their league!

A friend pushes his at 24PSi on a stock capacity 26... Makes 320AWKW... And it makes it up near 6500RPM...

You may "only" be making 300AWKW in yours... But you have to think, you're making it at a LOT lower RPM if you're running outta power at 6250... Which means, you're making more torque... So you're using more fuel, and air (Less restriction, same boost level, more air flow... :( ), at a lower RPM...

TURBOS ARE OUT OF EFFICIENCY... Logic says it...

i haven't tried to look at the maps yet.

the way i sse it is that boost pressure is broadly related to what speed the turbos are being turned at - whether it's an RB26 or RB30 sized pump moving the exhaust gas. so i think i should be able to get 23 or so psi out of them either way before seeing a big hike in inlet temps. the fact that the 30 will push 15% more air just means that it should get to the 23 psi level at lower engine rpm.

i don't expect / want them to make more than 430rwhp, but while not wishing to compare dynos i'm a fair bit shy of that with 370rwhp at 15psi, remembering that he didn't want to run it at 17 psi due to inlet temps. injectors are 660cc so i think they should cover my needs pretty well. the head has some minor porting.

there has got to be some inefficiency raising the air temps. i reinstalled the heat shields over the stock exh manifolds as the amount of heat rising onto the twin turbo pipe is fairly substantial. might be worthless but we'll see. i'll try and post a dyno chart and also temp data.

you will not be loosing power if the temps are below 50 degrees.... ulness you arnt running a intercooler????? 20 odd psi and 300kw is the norm.. so thats not bad power from 1.2bar..

asked for the inlet temp data but didn't get it. def running an intercooler. still drops off at 6250 ish though, would like to retain legs through the gears so cams are prob a must anyway.

scott is still adamant that it's cams.

lined up to check pressure drop and temps on a local dyno.

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...