Rob's S Chassis track cars. Now with more s15 and less 180sx

[MBS206]

I find building an exhaust a really satisfying job!

Looks nice!

 

Did you consider using an oval pipe to get the same cross sectional area but keep it above the chassis rail?

[MBS206]

@robbo_rb180 do you tune your cars yourself or do you send them to someone?

If you do it yourself, do you hire a dyno, or tune it after logging it at the track?

Meaning like touch ups when you tweak or modify something a bit

[robbo_rb180]

7 hours ago, MBS206 said:

@robbo_rb180 do you tune your cars yourself or do you send them to someone?

If you do it yourself, do you hire a dyno, or tune it after logging it at the track?

Meaning like touch ups when you tweak or modify something a bit

I've looked at some oval stuff but still deciding what material to use for the back half to the muffler.

 

Yeah I do all my own stuff with ecu setup and have it sorted before generally paying someone (my old work) to do base runs and a few power runs then I'll do anything else myself at track or after review data. It's hard to find  a dyno owner these days that will hire out to random.

[MBS206]

On 7/6/2024 at 5:41 AM, robbo_rb180 said:

I've looked at some oval stuff but still deciding what material to use for the back half to the muffler.

 

Yeah I do all my own stuff with ecu setup and have it sorted before generally paying someone (my old work) to do base runs and a few power runs then I'll do anything else myself at track or after review data. It's hard to find  a dyno owner these days that will hire out to random.

I didn't realise you used to work at a place that does tuning!

I know while I'm putting the Subaru back together it'll need a remap, but I'm pondering how easy it'd be to do logging at a track day.

I've got an Innovative LM-1, and am pondering if I get a new O2 for it, or what a decent Wideband (standalone) sensor and controller is worth that I can log (And either ECUFlash or ECUEdit might support).

I was searching for hiring a dyno for DIY tuning but looks like only 2WD dynos can be hired at the moment and I need 4WD

[MBS206]

Rob,
Updates on build mate?
Do I need to drive round your way and prod you with a stick, or is work just too busy at the moment? I'm happy to write you a resignation letter if work is getting in the way of building your own car

[robbo_rb180]

1 hour ago, MBS206 said:

Rob,
Updates on build mate?
Do I need to drive round your way and prod you with a stick, or is work just too busy at the moment? I'm happy to write you a resignation letter if work is getting in the way of building your own car

I got shiny stuff (radiator and intercooler) from pwr about 5 weeks ago. Did all new bolts and orings on inlet manifold, bolted it on and started planning engine bay fuel lines.

Test fitted 350z dbw pedal, need to make a bracket to sit better with pedals.

Ordered a nismo diff through streeter and waiting on it arrive.

Hardly have any time to work on it as work is crazy busy and needs a fair bit of commitment to do well and its  proved with past few rounds with a few 10 tops and a win in Tasmania. 

I have also stopped and reassessed what I want to do with the car too. I was trying to get it to fit wtac clubsprint rules as only needs a few bits changed that are bolt on but not worth the effort so just having a good think about it. Working with some very experienced race car builders and engineers has definitely changed the way I want to put it together as well.

Some pics of test fitting rad and cooler

Work things

And also fresh turf to finish my backyard

 

[robbo_rb180]

Diff arrived from Japan last week. 

Nismo gt pro 1.5way for gtr. Still deciding whether to use 4.11 or 3.9 gears before installing. 

Spent some time yesterday going over what's needed to finish engine bay fuel lines. Got a list so will order soon. Played with radiator placement and decided on stock location with bottom spaced a bit for a small amount of angle. So ordered standard mounts and rubbers. Reason for this is the 180sx was a pain to work on any of the coolers and was also going to take longer to fabricate mounts.

Today made a bracket to mount the dbw throttle pedal. Factory location wasn't great to work with the pedal box. Luckily there's a rail that pedal box mounts too so did some measuring, drew up a design and got stuck in. 

It's made of 3mm aluminium and has a lot of strength just need some bolts, washers and nuts to finish up.

 

If I get time tomorrow I'll pull the front bar and lights to start intercooler mounting, it will be flipped under the rad support which will require some trimming. 

[robbo_rb180]

Been over 2 months since I have done anything on the S15 and had a day off today so got stuck into mounting the radiator and intercooler. I ended up using factory bottom mounts as bolted in and I did order some gktech top brackets but didn't work with the PWR radiator so made up some with aluminium flat bar. Spent way to long on them but pretty happy how they are.

Next job was the intercooler. Used some more aluminium flat bar and did the bottom mounts first. Top was easy as just one long piece and 2 90 degree coming off rad support and welded them on. The bumper support required some notching to let the outlets sit where I want so will add some reinforcement later to strengthen it.

I have also bought ecu and waiting for it to arrive. Went with a Link g4x Xtreme but will be adding a ptmotorsport expander to add a few extra inputs over CAN. Went through a few different configurations on pclink to get what I want to allow future expansion for sensors and gearbox upgrades.

Ordered gktech rear arms but looking at the hardrace lower control arms to have some extra adjustment too will see how the alignment looks after first setup.

Got 2 more weeks of work before shut down and will have almost 4 weeks to work on this so planning on hopefully firing up mid January.

 

Also bought a 2015 brz with a heap of good gear, did noosa hill climb a month back. Owned it for 3 days changed alignment and sent it. Finished the weekend 2nd in class and only .3 off the 180sx best time last year.

MCA Red coilovers, gktech rear lca, bolt on lock kit and tie rods, whiteline toe arms, cusco 1.5way diff and 4.5 ratio, endless brake pads, headers, exhaust, perrin intake and e85 tune. Electronic steering adjustment, nankang crs with koya wheels 17x9 +35.

Have bought rear traction arm and relocation kit, extended studs and v3 tie rod kit. Planning on also getting flex tune as lucky to get 300km a tank with e85 and short ratio. Car is a heap of fun to drive and super easy to work on. AC in the line up at Noosa was mint in 35degree weather.