Jump to content
SAU Community

Recommended Posts

Hi

my current power F.C. map is for a basic setup including a hks2530 on a rb25 neo. Was mapped to 1.3 bar with usual supporting mods, intercooler, r35 injectors, stock afm etc etc. with a conservative road map

the car is away at my mechanics getting a new setup fitted, gtx3076 gen2, 6 boost top mount, turbosmart external gate, stock plenum remains in place. 

I will plug the standard afm back in, would this be ok to limp back to my home with keeping below 2500rpm and no heavy throttle?

i will map it from home with a friend and change to a z32 afm then

Next part of my topic

its a unopened neo run on 98 ron. Not after lots of power, about 1.4 bar max would be my intended boost, would that be safe enough? I don’t want to risk the engine to much

 

few pics of the fabricators work, I know i expect to hear should have ditched the plenum and throttle body and stuff, but at the lower power goal at this stage it will be fine, next year I may add a head gasket and studs etc, at that point I’ll privably change the plenum 

2567AD75-D1B8-4DF1-BBA0-93AADD446169.thumb.jpeg.3e285a2a1b22ea785b177497013a9de0.jpeg

 

72A096C2-CD48-40E5-A2B2-9CE72C5FC98B.thumb.jpeg.d8717cad3c0fdde3ec36b906cef9acad.jpeg

 

 

thanks all

Lovely fab work :)

Boost doesn't kill motors, just keep the timing pretty sedate near peak torque and you could run close to 2 bar without it going bang on a NEO.

FWIW, I did 1.8bar into a non-NEO motor and abused it on the track for ages till it lunched itself, however it had barely any timing in it in the mid range.

Lastly, I would ditch the Z32 and run a HPX N1 card AFM as it doesn't suffer from reversion like the Z32 does.

Cool boys, thanks for that

its a road car so reliability is the thing I’m after not every last horse from the engine.

first thing when home is to check base timing is correct, it’s me and a friend tuning it, he’s quite clued in but the z32 will be easiest for us as it’s directly supported by the power F.C.  

I’m not familiar and I did try do some research about a r35afm before but it was not as straight forward as I would have liked. 

  • 2 weeks later...

Ok chaps the car is home, super

 

can anyone tell me, if I swap the z32 in (and what wires I need to join) and reselect z32 in the power F.C. hand commander, will the car still drive again or will it certainly need mapped again even for light car moving ? 

Should drive fine.  That's the whole point of having the curves for the different AFMs ready to go.  but it will need to be tuned before you put any significant load on it, because it will not be right enough.

As to the wires.....google is your friend.  There would have to be thousands of posts on the topic just on this forum alone.

  • Thanks 1

You need to look at stronger valve springs at those boost levels.  That's about the only hardware that really needs attention assuming the tune is right.   

 

As for driving before tune.  If you have the same injectors and AFM then it should run fine under vacuum and very low boost (1 or 2psi) .  

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

    • Here's the chart for fuel pressure vs. current draw, assuming your base fuel pressure is 3 bar and you run like 0.5bar boost on WOT, you should only momentarily hit 9amps here and there. (Ignore my prev post, I cannot read a chart these days it seems)
    • Those comp test results are not hideous. Whether they are accurate or not (ie, when that comp tester says 140 psi, is the real pressure120, 140 or 160?) is unknown to us. The state of the battery used to crank it over is unknown, etc etc. Many people around here would say that the absolute values and the spread are perfectly fine to just add boost and keep going. I personally would be happier with a narrower spread than that, but even the diff between 125 and 145 is not terrible. That one cylinder at 125 though, has probably copped some damage relative to the others. You should inspect the valves seeing as you've got it open. Do you know how to measure installed ring gaps? That, and an inspection of the rings themselves, is how you will determine whether they need to be replaced. If you're not good to do these things, take the block and the pistons and rings to a shop that is, and ask them for the go/no-go on them. Do the bores need a hone at all? If so, you might well be justified in getting some different pistons in order to get away from the ring supply problem. Whether you're happy to spend a lot more money right now, on more gear, rather than less money, but an amount that looks stupid given that you will only get a handful of rings in exchange for that money, is for you to decide.
    • also possibly backed up to my filler and shat down it! 🤣
    • Ok so i would love some advice here please, i purchased an R33 a few months back and its had a few mods done to the engine, its an RB25det running a Master ECU, 1200cc injectors, bigger turbo, oil cooler, oil filter relocation kit, Spool H-beam rods, acl/ross pistons. When i removed the motor from the vehicle (as its getting a respray) i thought i would compression test it and these are the following results. Cylinder 1-145psi, Cylinder 2-143psi, Cylinder 3-125psi, Cylinder 4-145psi, Cylinder 5-140psi, Cylinder 6-135psi this test was done with the motor on the ground and powering up the starter motor. I dropped the sump and found broken oil squirters on cylinder 3,5 and 6. I was told my rings are probably worn so i stripped the motor completely to get a new set of rings for it. The trouble is no one has these rings anywhere and they have to be custom made by Ross over in the states and will cost about $600+$200 delivery. My question is how can i tell if my rings are at fault and if they are still ok and is this price ok for a set of rings?
    • What sold me on Trailer Park Boys is this scene: Great stuff, just stay clear from the new Netflix production.
×
×
  • Create New...