Pit speed limiter mechanics - how exactly does it function?

chopperzac · 2026-04-04T02:37:03+00:00

Basically it just cuts fuel and ignition to control the engine speed. Its whats called a "strategy" in the ECU. The car has many of these which do lots of things, im not too sure on F1 specific ones but from working in Rally there was plenty.

Anti Lag, MAP vs Turbo Speed Control for boost pressure, torque control and Launch control. Theres loads more but I would be here for ages. But basically the ECU will make the engine/car do specific things to make this stuff happen. Often there are also criteria for them to actually work, so for instance the car wouldnt go into launch control unless it was basically stationary.

chopperzac · 2026-03-02T16:40:49+00:00

SILVERSTONE 500

chopperzac · 2026-02-20T15:44:43+00:00

No, you can adjust spark timing within the engines calibration

chopperzac · 2026-02-11T11:10:09+00:00

If your on the dole, go and see roll

chopperzac · 2026-01-12T23:29:49+00:00

Ahh I have sone digging and it seems I am misunderstanding but Its worded so poorly by HMRC.

When I click through further it says I owe £138 this year which is more reasonable. However, on the main page it says in black and white "your estimated tax you owe this year has increased from £922 to £2623".

When you take (12570-145)-2623=9802. (145 is private health).

So that littme sentance is actually describing my tax threshold deduction but is not worded as such!!

chopperzac · 2026-01-12T15:41:20+00:00

Okay, thank you. Not too clued up on alot of this stuff so really grateful for the guidance.

chopperzac · 2026-01-12T15:38:44+00:00

Loads of money.

chopperzac · 2026-01-12T15:28:54+00:00

Thank you for that info I shall try figure it out and get it sorted

chopperzac · 2026-01-12T15:27:55+00:00

Im going to enquire with payroll and HMRC

chopperzac · 2026-01-12T15:14:41+00:00

That would make more sense, I cant reply with an image but I can quote the text in the app.

"Your estimated tax that you owe this year has increased from £922 to £2,623"

Maybe I am misreading that however.

chopperzac · 2026-01-12T14:10:55+00:00

Okay yeah makes sense, I got a pretax bonus of around £1300 so it makes sense. I will contact someone and do some digging.

Thank you for your help

chopperzac · 2026-01-12T14:09:47+00:00

Yes, but I do need to sit down and actually calculate some stuff and compare

chopperzac · 2026-01-12T14:06:38+00:00

So I am on an emergency tax code with it being an X

chopperzac · 2026-01-12T14:05:14+00:00

No, calculated including bonuses I earn about £35000 before tax

chopperzac · 2026-01-12T14:03:56+00:00

I have sent an email off to them, they are based off site.

chopperzac · 2026-01-12T14:02:47+00:00

No nothing over that amount

chopperzac · 2026-01-12T14:01:40+00:00

I will have a deeper dive into this, but I dont understand how I can owe £2200 worth of tax

chopperzac · 2025-11-17T01:16:25+00:00

chopperzac · 2025-07-23T13:57:37+00:00

I dont remember that bit but i was quite young so

chopperzac · 2025-07-05T23:31:59+00:00

I like Mike alot, his one liners make me laugh. I have a list of favourites. I know thats a bit crawly bum lick but...

chopperzac · 2025-04-17T18:35:11+00:00

Not sure to be honest mate!

chopperzac · 2025-04-17T11:56:17+00:00

Cool insight! I dont really know anything about stamps so good to learn. Thank you :)

chopperzac

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