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

[robbo_rb180]

Got the car done mechanically and on to the dyno today for run in. 
A few small oil leaks but that was only issues. Happy with result, took it for a quick test drive around the block and its comes on hard.

Got a long list of stuff to do between now and next Sunday before heading down south. Got to be at MCA on the 16th for new Red Series coilovers & cornerweight/alignment then off to Morgan Park for a test day on the 18th. 
Biggest jobs will be new ducting from front bar and pulling motor to fix the leaks. Will make a start on it all tomorrow with a few small things.

[Dose Pipe Sutututu]

Great start!

Typical SR torque/power flies straight up, nearly perpendicular to the X axis lol.

Running an intake cam gear? Advance it a bit to get more low down and make that torque ramp a bit more linear.

[robbo_rb180]

On 2/3/2022 at 9:03 PM, Dose Pipe Sutututu said:

Great start!

Typical SR torque/power flies straight up, nearly perpendicular to the X axis lol.

Running an intake cam gear? Advance it a bit to get more low down and make that torque ramp a bit more linear.

No, standard cams & gears atm. See how I go on e85, it was making 10kw every degree of timing but wait til after track day to turn it up on e85

 

[robbo_rb180]

So noticed didn't have that much oil pressure at load 35-45psi and was getting low when oil was hot (5-6psi). Pulled pump off cleaned it and shimmed it, only a small change in pressure 😪
Got a plan to sort it as need it ready for Japnats at QR  23rd April.

Finished up the ducting and a few small bits today, its not perfect but will do.

Loaded up and ready to start the move to Ipswich tomorrow

[Dose Pipe Sutututu]

Saw on IG, here's hoping it's a faulty gauge!

[robbo_rb180]

On 2/13/2022 at 8:48 PM, Dose Pipe Sutututu said:

Saw on IG, here's hoping it's a faulty gauge!

Thought that too but its not.

[MBS206]

Uninstall gauge, low oil pressure worries be gone...

 

Is it possibly something simple like the pickup is partly sucking air?

[robbo_rb180]

No definitely pump as only thing I didn't replace and shimming helped a bit.

Engines out again and new oil pump ordered. Will check mains while apart for any damage.

I've had my entry for Mt Morgan Hill climb accepted so need this sorted and do testing with new suspension before it.

[MBS206]

And then?

[robbo_rb180]

Engine in with new oil pump was a little bit better but still below factory specs. Don't want to risk stuffing a block and crank for the sake of it.
Currently got EOI on the car as I have a new chassis that is already caged and suspension setup that I am starting assembly once shed is up.

Also had a massive accident saturday at Lakeside Raceway and had my Getz written off so no racing for a while.

[Duncan]

well, I hope you are OK (other than the wallet)....nothing puts racing on hold like repair bills

[robbo_rb180]

On 6/14/2022 at 8:15 AM, Duncan said:

well, I hope you are OK (other than the wallet)....nothing puts racing on hold like repair bills

yeah mate all good just a bit of neck pain but safety gear did its job. 
Unfortunately no repair for the car as its bent and twisted both rails, kinked firewall and motor is gone.

[robbo_rb180]

Back into this car now to get ready for a rescheduled Mt Morgan Goldrush Hill climb.


First hit of the key and started straight up. oil pressure around 36-40 psi 😅

Engine coming out again since rebuild, this is the third time...


Found the low oil pressure issue. 2 spun rod bearings.... this did run in on dyno and a few street runs, did not even knock
I reckon I stuffed up when assembling. I'm sticking to wiring & ecu setup from now on 😅

Bought this to go into a new car but I want to go racing so will be swapping all the manifolds and bits over, hoping to have it in by Friday night. Going to redo a few oil lines while there too. 

Run down on the new motor:
sr20
CP piston 86.5mm
spool rods
balanced & grub screwed crank
ported head
kelford cams 188a and Valve springs
ross balancer 
5-0 ignite trigger kit

Pretty much copy of old engine plus cams and built by a shop. Need to build a tool to pressurize oil system to 70psi so can have warranty. Got an old nitrogen bottle, fittings & reg that I'll mcgyver together.

Also got a new set of MCA reds to go in so should have all the good gear to be a reliable all rounder again.

Was also going to have a go at dirt rally navigating. Spent a few weeks sorting the car out but the Rally Queensland got rained out so will have to wait and see what event will be able to do next. Took the cars for a run through town for a bit of fun.

Edited July 28, 2022 by robbo_rb180

[robbo_rb180]

Back into this today as had some motivation.
Spent the day swapping intake & exhaust stuff over. Previous owner of the new motor must have used a rattle gun everything as took a bit of effort to remove water inlet/outlet and fittings in the block.
As usual with old nissan stuff one of the last intake manifold threads decided to not exist anymore so add that to the list to fix in a week when working on it again.

Bought a electric pump to prime the new system and need a few fittings to finish new oil lines.

And as we were disassembling the old motor my mate was looking at the intake ports and found a nice crack in cyl 3 port 😪
Can just see the crack in the top so I've either gone to aggressive with the port or the new guide was sent a bit too hard 



So that head is toast and need a new plan for my s15 as this motor was going to be rebuilt to go in that.

Mates back from shift next wednesday and plan is to have it in and started friday hopefully.

[No Crust Racing]

Bummer about the head

How's the shed progress? 

[robbo_rb180]

On 9/13/2022 at 7:27 AM, ActionDan said:

Bummer about the head

How's the shed progress? 

yep but lesson learned.

Shed progress has small things happening but looking like its not going exactly where we planned, still no date as catching up on back log. At least have a concreter now

 

[No Crust Racing]

Yeah a concreter will help hey!

[MBS206]

You down in the Swich now Rob?

Wanna send your shed builder my way, I need to expand the garage a bit bigger now... Running out of room... Ha ha

[robbo_rb180]

8 hours ago, MBS206 said:

You down in the Swich now Rob?

Wanna send your shed builder my way, I need to expand the garage a bit bigger now... Running out of room... Ha ha

Yep.

Sure can will have that extension sorted by 2030😂

New motor is in the car.

Need 2 fittings to finish oil cooler lines and still waiting on the priming pump to arrive.

[robbo_rb180]

I didn't like how I had run the oil lines for the remote filter and cooler was in a bit of rush when i did it so while it's been apart fabbed a plate to move the filter and cut through the wheel tub. Came up nice and lots less hose was able to cut down the old line.

New motor is running, had a small issue with the trigger setup but got it sorted and fired up with really good oil pressure. 

 

With motivation high decided to fit the new MCA Reds I bought back in February. These are nice, sets of different camber washers, new hardware and heights set. I had been swapping the coilovers between the 2 180sx for years. Looking forward to testing them out.

Now that its all back together will hopefully have dyno booked next week for run in and tune. May finally get on track with it this year 😅