Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  • Users: Silverbullet86
  • Order by date
  1. Silverbullet86

    Engine Running without thermostat

    without a thermostat, your engine would run cooler than it should. This may or may not be a good thing. Adapt this to your application.
  2. Silverbullet86

    Combustion efficiency with E85

    blackcobra: Qin/(mf*Qhv) is indicated fuel conversion efficiency Would finding the adiabatic flame temp of gasoline VS ethanol at stoich combustion help you?
  3. Silverbullet86

    suspension adaptation

    The 5 lugs pattern is the same with the newer Mustangs (2000ish), however if your referring to the 4 lug pattern, they are 4x113.4 on the S13 and S14 240sx. It is slightly different from the 1990ish foxbody Mustang bolt pattern if that is what you are basing it off of.
  4. Silverbullet86

    Why so many wheel studs?

    the rotating hub has a torque force. The wheels in contact with the road bolted to the hub are exposed to a bearing stress where there is a shear force present on the wheel studs and the face of the wheel. The more studs there are, the less shear force on each of the studs. It is just an...
  5. Silverbullet86

    BOV Question

    I'm not sure if i understand that statement. Define low flow. Isn't the point of boosting an N/A motor to make it flow more: ie it had low flow, and now flows higher.
  6. Silverbullet86

    BOV Question

    Also wanted to add, that many turbo chargers on the market today are build much much stronger than before and it may not even be necessary to use a BOV in attempt to gain throttle response. Some manufactures sell anti surge compressor housings.
  7. Silverbullet86

    BOV Question

    There are different designs of BOVs. A "pull type" BOV will not leak due to the fact that having + pressure in the charge pipe keeps the BOV closed, while a traditional "push type" BOV will have the + pressure from the charge pipe pushing against the piston towards the direction is opens. i...
  8. Silverbullet86

    Thermal Eff. of engine question

    in addition ... in my little Thermal Eff equation, the work increased with the higher Qin'; (11-6) VS (10-6); which makes no sense in real life. There wouldn't be more power with hotter intake air. Someone who has worked with heat engine engineering wanna clear up this mess?
  9. Silverbullet86

    Thermal Eff. of engine question

    i actively read several car forums and i came across a thread that linked to this thread http://www.gassavers.org/showthread.php?t=244 where this guy raised his intake temp and got better MPG with success, along with others who have tried. That got me thinking. In i recall from Thermal Apps...
  10. Silverbullet86

    Diesel Wankels?

    in case this needs to be cleared up from my last post: k =(cP/cV) assuming constant specific heats. EtaTH = Thermal Efficiency
  11. Silverbullet86

    Diesel Wankels?

    i have a question that might sound a little stupid. Wankel engines fall under the Otto cycle correct? If thats the case, surface to volume ratio was mentioned a couple times and it affects thermal eff. apparently. I recall in Thermal Apps class that 1-(1/comp.Ratio^k-1)=EtaTh, so the higher the...
  12. Silverbullet86

    Turbine Engine: No Pistons, no lube, 30% better on gas!

    http://gas2.org/2008/06/09/turbine-engine-no-pistons-no-lube-30-better-fuel-economy/ I think my Thermodynamics text book needs to be rewritten now.
  13. Silverbullet86

    What motors used in these electric cars?

    I'm sure many of you guys have heard of the Tesla Roadster ( http://www.teslamotors.com/ ), the electric sports car. There is also this other company that is making Shelby Cobras and new Mustangs with full electric motors. I can't seem to find any information on who manufactures these motors...
  14. Silverbullet86

    Anyone seen this type of turbo system?

    i see a problem with that. Parallel twin turbos work like that, but not sequential. The purpose is to have a larger turbo and a smaller turbo. The amount of exhaust flow to spool the larger turbo in its efficiency range to make big HP numbers would DESTROY the smaller turbo if it had to go...
  15. Silverbullet86

    Anyone seen this type of turbo system?

    damn it. And i thought i was a genius lol. I guess it was too simple of a concept to have been not thought of. I think this system is superior over the sequential setups RX-7s and Supras have from the factory because it can be an easy bolt on product for aftermarket performance. OEM cars with...
  16. Silverbullet86

    Anyone seen this type of turbo system?

    I've been reading up on different twin turbo setups, specifically sequential turbos where there is an electronic valve that controls exhaust flow from one turbo to the other. I was wondering if anyone has seen a setup where the dumped exhaust flow from the waste gate of the first turbo (smaller...
  17. Silverbullet86

    F1 going hybrid

    wow, i shouldn't read things after midnight lol. I wonder what would be considered wasted energy. I've never looked into hybrid cars.
  18. Silverbullet86

    F1 going hybrid

    http://gas2.org/2008/04/22/formula-1-racing-to-go-hybrid-from-2009-2013/ i thought this was interesting. Who doesn't like higher performance of a system =) What would be wasted energy from a flywheel? I can only think of when the clutch is disengaged the flywheel slows down, but I believe F1...
  19. Silverbullet86

    How much time do spend at work ... you know ... working?

    i believe it depends on management. I'm currently in school as an undergrad, but last year, i ran the drafting department at a company. For maybe 80% of my time there, the company had a very screwed up chain of management. There was the CEO, then the 20 empolyees he has in the company...
  20. Silverbullet86

    How to work in Formula1?

    participating in FSAE isn't your key into Formula 1, however it opens doors to many automotive engineering career paths. Getting a job at Formula 1 is like getting a job at NASA. Its huge, and is considered one of the world's most technically advanced machines.

Part and Inventory Search