Jump to content
SAU Community

Recommended Posts

Stao can you make a VNT housing for the SS1PU? SR20 bolt on spec?

Internal or external gate? I will be happy to retune before I start tracking the car and can test it fully.

I'm building one now for the R33. Probably be ready by the end of next week then just have to wait for Trent to come back from UK again for tuning. But if that works out well then the same concept can be used in all T2x turbine housings.

Been driving the VNT SS3 every day for almost weeks now. Unlike other turbos at certain rev ranges stepping the paddle on the floor result in a blank spot. The SS3 VNT has no blank spots, G force comes in straight way with a touch of acceleration.

It doesn't have a "hard forced in seat pull" feel after 4500rpms like most turbos do in this range, it has a very smooth acceleration sensation, that pulls harder and harder from the start revving towards limiter. Also because the smoothness in acceleration there isn't a sudden peak of torque, which helped those tyres to grip a lot better. It makes a very fast car and should definitely pull some serious lap times on tracks.

Might get Sxxricho into sponsor ship with this turbocharger, Pretty sure he will break his previous records with it.

Been driving the VNT SS3 every day for almost weeks now. Unlike other turbos at certain rev ranges stepping the paddle on the floor result in a blank spot. The SS3 VNT has no blank spots, G force comes in straight way with a touch of acceleration.

It doesn't have a "hard forced in seat pull" feel after 4500rpms like most turbos do in this range, it has a very smooth acceleration sensation, that pulls harder and harder from the start revving towards limiter. Also because the smoothness in acceleration there isn't a sudden peak of torque, which helped those tyres to grip a lot better. It makes a very fast car and should definitely pull some serious lap times on tracks.

Might get Sxxricho into sponsor ship with this turbocharger, Pretty sure he will break his previous records with it.

:3some:

High-mount, ex gate here I come.

Dude if this thing can survive Richo's punishment then a VNT can totally handle pootling around town with me as a road car...  :)

Agreed largely, though carbon buildup over time is one of the big issues VNT systems often have

Do you think carbon build up would be as much of a problem on E-Flex though Lithium? It seems to me now that it's not as much of an issue for my copper plugs, the same should be true for the entire system post-combustion. Have seen a few internet threads of engine tear downs (not failure related) of e85-fed cars which seemed remarkably "clean" compared to a petrol counterpart.

Probably not. At the end of the day the best way of knowing is Stao getting some of these things on cars and seeing how they perform in general, and over time - if they are an overall success then a win for everyone :)

There won't be any carbon build up there. Original VNT won't work in a high performance application, It is not a traditional VNT system, but based on its principle and has the same effects. I'm not worried about the reliability of this housing at all. But more interested in how to have them produced with better affordability. The aim to to retail them at around $1500.

Its interesting of how much water content E85 has. My exhaust manifold and turbine housing is always filled up with water when I remove them.

Photo of the high flowed Evo 10 turbocharger using reversed SLSS2 CHRA.

comp.jpg

turbine.jpg

Yep, its because your car sits around a lot and the remnants of the fuel soak up moisture.


I am doubtful that the fuel itself is leaving water in the exhaust post burn, but its probably an indicator that the fuel system has the potential to suck up water. Danger danger!

Yep, its because your car sits around a lot and the remnants of the fuel soak up moisture.

I am doubtful that the fuel itself is leaving water in the exhaust post burn, but its probably an indicator that the fuel system has the potential to suck up water. Danger danger!

My screamer etc is crusty and rusty and you can see water droplets in it (When plumbed back it drips from the join)

Nothing major and certainly nothing wrong with the fuel system ;)

No. No. The high water content in the exhaust is from fuel that burnt to produce water. There will be MUCH MUCH more water from that origin than there would be from absorbed water. The water vapour that sits in there when you shut it down is what is condensing out. The same thing happens with normal petrol, it's just that there is quite a lot more of it in the exhaust products of ethanol.

As I said in post above, but with actual numbers this time, the ratio of H2O to CO2 in petrol exhaust is 1.125:1. In ethanol exhaust that ratio increases to 1.5:1. It's a big jump. Makes the flue gas very "wet".

--edit-- corrected CO to CO2.

Edited by GTSBoy
  • Like 2

No. No. The high water content in the exhaust is from fuel that burnt to produce water. There will be MUCH MUCH more water from that origin than there would be from absorbed water. The water vapour that sits in there when you shut it down is what is condensing out. The same thing happens with normal petrol, it's just that there is quite a lot more of it in the exhaust products of ethanol.

As I said in post above. but with actual numbers this time, the ratio of H2O to CO in petrol exhaust is 1.125:1. In ethanol exhaust that ratio increases to 1.5:1. It's a big jump. Makes the flue gas very "wet".

:3some:

You want to see the steam coming out my car's exhaust on these cold 2 degree mornings, it looks like a steam train, completely blocking my vision out the back window. I should get a pic for the lulz.

Stao, I would like you to keep one of those reverse rotation Evo wheels aside for me, do you want me to pay a deposit or something? I need to find an evo 8mr rear housing I think, as my standard evo 7 rear isn't the 10cm version as far as I know. Perhaps it could still be a good thing? Anyone know what the ar of the 7's is?

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...