Jump to content
SAU Community

Recommended Posts

Fill cylinder with fuel - cam tries to open valve - bent valve stem ........ would be the logic, however with enough fuel to do that, you would instead bend a rod first.

on the money!

and yet, I am order 2x new 1200cc grinded down, drilled out JECS injectors from Five O Motorsport (being a shit box R33 GTS-t I cannot justify a new plenum, top feeds, external reg etc..)

Well I fitted a brand new set of 1000cc to my mate's S15 and road tuned them for him.. works well enough, however just can't get them to idle at stoich. The best I could do was 14.2, but with electrical load the AFRs would drop to 12.5.

I understand they have rubbish control at min. pulsewidth however with E85 that problem "should" disappear as you require 30% more fuel to hit stoich.

Lesson learnt, don't buy used & high flowed/milled/shaven/drilled injectors.. new is ok.

Just out of interest could anyone give me a rough idea of the weight of an SS2? I bought one a while back and it's at the post office for pickup but I'm working. My step dad said he'd get it but he has a VERY bad back and I don't want to risk any damage.

He thinks it should be fine but I though I'd get an estimate first

Just out of interest could anyone give me a rough idea of the weight of an SS2? I bought one a while back and it's at the post office for pickup but I'm working. My step dad said he'd get it but he has a VERY bad back and I don't want to risk any damage.

He thinks it should be fine but I though I'd get an estimate first

  • 2 weeks later...

Been quite busy lately, posting up some dates.

This is an other result from an ATR28SS2, Customer reported initial run of 279rwkws @ 22psi, out of a factory SR20det motor with Tomei step 1 drop in cams.

Final result is 261rwkws @ 21psi and 273rwkws @ 23psi retarded 3 degrees for the longevity of the motor.

Dynoed on pump 98 fuel, 20psi was reached @ 3900RPMs.

atr28ss2power.jpg

atr28ss2boost.jpg

Hey stao,

My SS2 was internal gate, now going external gate. Am i best to buy a blanking backing plate from you or should i buy an actual external gate rear housing? I remember someone saying the other day the the cut out for the IWG flapper would affect rear housing flow or something similar? As im running it on an RB30DET flow is already going to be an issue so trying to make the best of this situation :)

Cheers mate.

Mainly its out of the same jig as mine and it worked ok on my car. Can be modified with no problems.

Water is in m18x1.5

Oil is in m10x1.25

Do NOT use oil restrictor on the normal versions of the ss turbos.

Merry xmas every one.

Also is this still correct? As i am going highmount i need to get a new oil feed line made.

so a -4 AN oil feed hose with no restrictor in it will be fine for the SS2?

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

    • GTSBoy on your suggestion on another thread I had a look at those injectors and ended up getting them because of the quality.  Got the expensive ones.  
    • Hey guys been looking everywhere to try and find the correct gtr hood latch support part number but only found the first half and when I search with that number it sends me to an r34. The first part I found was 62515. If anyone could help me with the rest then I’d really appreciate it. Or if there’s some alternative hood latch support that would work even better cause I can’t find any for sale. (Searched on upgarage, partsouq,buyee,rhdjapan) 
    • If you've only done the upper control arms on the rear, AND you have changed their length (by more than about 1mm) to set the camber you want, then you will definitely need/want to install traction arms also. Adjusting the camber arms on their own WILL introduce bump steer and make the car unpleasant to drive. Most owners have no idea that their car could behave infinitely better than what they put up with. I'm not entirely sure what the Stageas need, but I am thinking that unless you have massive front spring rates and pretty soft rear springs, you have waaaay too much rear bar. Oversteer city, in my estimation. Combined with possible excessive bump steer from maladjusted arms, that could be a recipe for nastiness. ATR43SS2 is not a highflow. It is an outright replacement turbo. It's a little bit bigger than the largest highflow profile that Tao does. Probably a solid 300rwkW turbo where the bigger highflows will be about 30-40rwkW less. Nevertheless, we're only talking about ~300 rwkW, which is well within the abilities of the stock ECu to run with a Nistune on board. I would do so without hesitation - and I will be doing so when I get my finger out and actually get the injectors and AFM installed. But, if you would prefer to drop a whole lot more money on the ECU side, then I suspect you're looking at Haltech. The Haltech fanbois here will all spout on about all the available engine protection you can have, that you can't have with the Nistune option. And they're right. But it doesn't really come for free either. You will spend more money on extra sensors and the like, plus the work to install them. If the engine was built and therefore represented a big investment to protect, then I'd say definitely do it. If you view the current (and forever into the future) shortage of replacement engines as something to prompt similar protection, then also, do it. If you see a destroyed RB25 as an opportunity to put in a Mercedes or other V12 (like I kinda do)... then your perception of the risk/reward might differ. These are good injectors. You can also get a "better" set of the same with more flow matching, for more $$. 1000cc is where you will want to be. You will need an R35 AFM and adapter tube if you want to stay with Nistuned stock ECU. Otherwise, if going Haltech, you can ignore. As for intercooler. Just about anything will do. You're only talking about ~300rwkW. Just put a big core in there. Be aware that return flows do add significant pressure drop and will cost power and will make the turbo work harder to achieve the same goals. If you can manage a proper crossflow, do it. I'm keeping my very good return flow because I'm only expecting to be in the ~250rwkW range, and will live with whatever outcome I get.
    • I have a heap that i have collected if you want some authentic ones still. Pm me if your interested!
×
×
  • Create New...