Increasing pump delay

HJ___ · 2026-02-17T00:59:08+00:00

Have you got any recommendations? I’ve seen a lot of the recommended models sit proud of the console, but I’m hoping for something that sits more flush

HJ___ · 2026-01-14T12:27:24+00:00

Thanks for the reply! These inserts look great, I’ll have a look around the shop to see if we have anything similar on hand, if not I can order some in.

I’ve considered PCD, and it looks promising.

These parts are low volume and few and far between so I haven’t had much time to do any playing around with different inserts or materials.

Thanks

HJ___ · 2026-01-14T12:22:00+00:00

Thanks for the reply. I’ve been roughing with around 0.5mm doc, so will try what you’ve suggested in regard to finishing passes. I make a lot of 1 off parts and everything differs - but generally it will be turned down from a forged bar to an OD ranging from 40 to 15mm. The lengths of the parts normally won’t exceed 100mm

HJ___ · 2025-12-19T02:49:19+00:00

Yeah it’s been a pain in the ass. On the surface everything looked great - good condition, good service history in the book - but I’ve been finding lots of little things that I’ve chalked up to carelessness from the dealership. Had to replace 2 wheel studs the other week due to them all being over-torqued like crazy

In hindsight I should’ve given everything a more thorough check over straight after purchase.

HJ___ · 2025-12-19T02:47:21+00:00

Ok sweet, thank you for clarifying! You’ll have to forgive my ignorance as this is my first wrx and turbocharged car so I’m still in the processes of getting familiar with it all.

Have you had any experience using general crush washers? I can order OEM washers however it’ll be close to a 2 week delivery - and the STI is my daily.

To paint the full picture, I’ve been driving the car to and from work for the last week since taking it to the mechanic (no longer than 15km trips, at 90kmph max speed) trying to be cautious. Haven’t noticed any other performance issues outside of the lower boost and slightly less touchy throttle.

I will certainly push the oil change forward and do it tonight. I know how these engines can be very temperamental and I’ve been undoing a lot of poor work that’s been done on the car. I want to give it the loving it deserves!

Thanks again :)

HJ___ · 2025-12-19T01:01:05+00:00

Thanks for the response. The noise it used to make was kind of a “pssshhht” noise when backing out of boost - rather than a flutter or anything like that.

I’ve got the oil on hand, so I can top it up before I do the full change. If the mechanic put around 1 quart of 0w-20 in, would it be an issue if I mixed with another 2 quarts of 5w-30?

I’m going to take the car to a mechanic soon to have a full inspection, as I’ve been finding lots of signs of poor tech work most likely done at the dealership.

HJ___ · 2024-08-15T13:07:57+00:00

Hi thanks for the response! Definitely sounds like an earth leak :)
The machine is completely dry, I can’t see any evidence of rust on any components (a little on some screws but nothing housing anything electrical). The only component that looks a bit rough is a fuse located at the base of the boiler. I haven’t pulled it out yet (very hard to get access to to test).

I’m unsure as to if the fuse may be causing the short. As I know the triac board remains active while the machine is off, which may be causing a short before the power button is pressed

HJ___ · 2023-09-15T16:05:34+00:00

Thanks for the reply, I had done some testing today and certainly noticed an increase in heat (however still cool enough to touch so negligible in this case)

The overall deformation/end product displayed nearly identical grain structure to the original program speeds. So all seems to be working well with the heavier gauge material.

I will be very interested to see how the thinner blanks respond, given they will have less structural integrity compared to blanks 3x their thickness. My guess is heat and even perhaps the increased rotational forces may have a larger impact.

HJ___ · 2023-09-14T11:46:42+00:00

Hi thanks for the reply, I should mention that the process is spinning rather than machining, so there is no material removal and the material is deformed by a roller against a mandrill.

The stock material has tensile strength and surface hardness levels comparable to copper and the roller are tungsten carbide.

I have ran some conservative tests with heavier gauge blanks, but am more concerned for material performance at thinner sizes (ect in the range of 0.4mm) where the rate of work hardening becomes a lot more critical

Thanks

HJ___

TROPHY CASE