4 ms·

I'd never would have thought to use a worm ring geared motor hidden in the frame. Reminds me of how nitrous bottles are hidden inside roll cages and cooling sys

by bliti 11y ago

I'd never would have thought to use a worm ring geared motor hidden in the frame. Reminds me of how nitrous bottles are hidden inside roll cages and cooling systems in racing cars. Cheating is an art of itself.

LanceH 11y ago
The favorite nitrous story I heard was the guy that had it hidden in the hood of his car. The first thing they would do during inspection after he was accused would be to remove the hood.
- bliti 11y ago
  A scooped hood I assume? I've seen it in so many places, including inside the fuel tank. I've wired a small amount of such systems into whatever switch is available on the dashboard. Hiding the solenoids is the real issue on wet systems...Life as a street racer was fun (but stupid). :)
arprocter 11y ago
https://en.wikipedia.org/wiki/Toyota_Celica_GT-Four#ST205_.281994-1999.29 https://en.wikipedia.org/wiki/Toyota_Celica_GT-Four#ST205_.2... "During the 1995 World Rally Championship season, Toyota was caught using illegal turbo restrictors at the Rally Catalunya and were given a one-year ban by the FIA. FIA president Max Mosley called the illegal turbo restrictor "the most sophisticated device I've ever seen in 30 years of motor sports.""
- bliti 11y ago
  More details on the illegal modification: http://homepage.virgin.net/shalco.com/tte_ban.htm http://homepage.virgin.net/shalco.com/tte_ban.htm It is quite brilliant. Think of it as a software backdoor. :)
  - arprocter 11y ago
    The wording is a bit confusing - IIRC it was a way to bypass the restrictor (which all cars were fitted with) to sneak more air into the engine.
    - bliti 11y ago
      Yes, it was a mechanical valve built into the area. If you've never had a turbocharger in your hand it might be tricky to picture it in your head.
      - arprocter 11y ago
        I have; although I was under the impression that pressure is normally regulated by the wastegate opening to allow exhaust to bypass the turbine - no restrictor required
        bliti 11y ago
        You can use the wastegate, a blow-off valve, or a restrictor to limit the amount of boost (backpressure in the air intake side of the engine). The wastegate controls how much the turbo spins and thus how much air it moves. The blow-off valve leaks the pressurized air (think of letting pressure off of a tire) into the atmosphere. The conventional use for a blow off is to relieve the compressed air during engine vacuum. The restrictor works by limiting how much air can enter the turbo. This means that the wastegate will be unaffected because it will depend on how much boost exists in the intake manifold. A retricted turbo will need to work harder for the same amount of boost (or be more efficient).
- semi-extrinsic 11y ago
  See also the "McLaren Snorkel"[1] in Formula 1. Not actually cheating, but it was also a brilliant piee of engineering, and it was banned pretty quickly. TLDR: in F1 you're not allowed to have a variable rear spoiler (i.e. high downforce in corners but low drag on straights). But the rules only specified hydraulic or mechanical devices were banned. McLaren engineers came up with the idea to stall the rear spoiler on the straights using a flexible tube which led air from the front spoiler to the rear. The driver would use his knee inside the cockpit to block or open the flow in the hose, so no mechanical or hydraulic mechanism was used. [1] https://scarbsf1.wordpress.com/2010/03/11/235/ https://scarbsf1.wordpress.com/2010/03/11/235/
  - taneq 11y ago
    And this is my primary problem with Formula 1. Any time anyone actually innovates, it's banned in short order. The whole thing is about dealing with the arbitrary restrictions imposed rather than about making the best possible vehicle.
alistairSH 11y ago
Some of the old NASCAR stories are great (even though some are likely embellished). For those that don't know NASCAR, look up Smokey Yunick. "If you don't cheat, you look like an idiot. If you do it and you don't get caught, you look like a hero. If you do it and get caught, you look like a dope. Put me in the category where I belong," -- Darrel Waltrip, 1976

by bliti 11y ago

LanceH 11y ago

The favorite nitrous story I heard was the guy that had it hidden in the hood of his car. The first thing they would do during inspection after he was accused would be to remove the hood.

bliti 11y ago
A scooped hood I assume? I've seen it in so many places, including inside the fuel tank. I've wired a small amount of such systems into whatever switch is available on the dashboard. Hiding the solenoids is the real issue on wet systems...Life as a street racer was fun (but stupid). :)

arprocter 11y ago

https://en.wikipedia.org/wiki/Toyota_Celica_GT-Four#ST205_.281994-1999.29 https://en.wikipedia.org/wiki/Toyota_Celica_GT-Four#ST205_.2... "During the 1995 World Rally Championship season, Toyota was caught using illegal turbo restrictors at the Rally Catalunya and were given a one-year ban by the FIA. FIA president Max Mosley called the illegal turbo restrictor "the most sophisticated device I've ever seen in 30 years of motor sports.""

bliti 11y ago
More details on the illegal modification: http://homepage.virgin.net/shalco.com/tte_ban.htm http://homepage.virgin.net/shalco.com/tte_ban.htm It is quite brilliant. Think of it as a software backdoor. :)
- arprocter 11y ago
  The wording is a bit confusing - IIRC it was a way to bypass the restrictor (which all cars were fitted with) to sneak more air into the engine.
  - bliti 11y ago
    Yes, it was a mechanical valve built into the area. If you've never had a turbocharger in your hand it might be tricky to picture it in your head.
    - arprocter 11y ago
      I have; although I was under the impression that pressure is normally regulated by the wastegate opening to allow exhaust to bypass the turbine - no restrictor required
      - bliti 11y ago
        You can use the wastegate, a blow-off valve, or a restrictor to limit the amount of boost (backpressure in the air intake side of the engine). The wastegate controls how much the turbo spins and thus how much air it moves. The blow-off valve leaks the pressurized air (think of letting pressure off of a tire) into the atmosphere. The conventional use for a blow off is to relieve the compressed air during engine vacuum. The restrictor works by limiting how much air can enter the turbo. This means that the wastegate will be unaffected because it will depend on how much boost exists in the intake manifold. A retricted turbo will need to work harder for the same amount of boost (or be more efficient).
semi-extrinsic 11y ago
See also the "McLaren Snorkel"[1] in Formula 1. Not actually cheating, but it was also a brilliant piee of engineering, and it was banned pretty quickly. TLDR: in F1 you're not allowed to have a variable rear spoiler (i.e. high downforce in corners but low drag on straights). But the rules only specified hydraulic or mechanical devices were banned. McLaren engineers came up with the idea to stall the rear spoiler on the straights using a flexible tube which led air from the front spoiler to the rear. The driver would use his knee inside the cockpit to block or open the flow in the hose, so no mechanical or hydraulic mechanism was used. [1] https://scarbsf1.wordpress.com/2010/03/11/235/ https://scarbsf1.wordpress.com/2010/03/11/235/
- taneq 11y ago
  And this is my primary problem with Formula 1. Any time anyone actually innovates, it's banned in short order. The whole thing is about dealing with the arbitrary restrictions imposed rather than about making the best possible vehicle.

alistairSH 11y ago

Some of the old NASCAR stories are great (even though some are likely embellished). For those that don't know NASCAR, look up Smokey Yunick. "If you don't cheat, you look like an idiot. If you do it and you don't get caught, you look like a hero. If you do it and get caught, you look like a dope. Put me in the category where I belong," -- Darrel Waltrip, 1976