HiBoost car at 1/4 mile

[b_real45]

I, for one, am sorry for teh hijacking... ;-(

(k)

 

[perfworks]

damn i just came home from dinner and see how long thing this is to read.
i would like to start you guys all over again so i can join in too.!! looks like fun!!
keep the discussion civil guys and we could get alot of s*** handled

 

[Kooldino]

WRONG. Taken from Westech page:
Many people believe BSFC indicates a rich/lean condition, but that is incorrect. The brake specific rule of thumb says that a typical engine will burn one half pound of fuel per horsepower per hour, or .5 BSFC. This is based on the efficiency of a relatively good combustion chamber and reasonably well matched intake and exhaust components capable of maintaining good dynamic energy across the engine. Most rough fuel requirement calculations are based on a .5 brake number, but this is only an estimated number indicating relatively good efficiency.

Ok, then answer me this. If a car runs a 10:1 A/F will it burn more or less than "one half pound of fuel per HP per hour"? Answer? MORE. Cuz it's RICH. It will be less efficient. So while lean/rich might not be the detirminate, it's absolutely a variable. If a car runs rich, it's making LESS power, and making LESS power per gallon of gas, which WILL change it's BSFC.

I did this because you didn't reply.. It was intentional.. you are pretty slow to pick that up.

I picked it up, Mr Superior Sir. I just think it was funny of you to do being that you didn't even wait ten minutes for me to respond to it. I was probably busy arguing another one of your points. LOL.

1.) I've read from other posts (even one written by Perfworks) that the base fp is around 43ish.

That may be true, but I've read it to be as low as 38 myself. I'm sure there is some varience between cars, etc, but ballpark is 40psi in the fuel rail. But if it IS 43 instead of 40, you DO know that you're helping MY argument, right?

2.) Terry supplies his kits with 12:1 FMU now... now why would you think that is?

So people don't run lean and blow their engine. But you know what? mine was far too rich. My plugs were black in a day, and i was blowing out black smoke. So i dropped it to 10:1. Anyway, what's your point?

BTW, thanks for bringing that up, because you again helped me prove my point. By plugging in #'s for a 12:1 FMU (instead of a 10:1) and calculating w/ the exact same numbers, it brings the BSFC to a .61 with a 12:1 FMU. OH NO! AND HOLY CRAP! THAT JUST PROVED MY ABOVE POINT, that a RICHER car will have a HIGHER BSFC! Who'dve thunk it? HAHAHAHAHA. You're better at proving my points than i am, bro.

3.) what you did doesn't really mean a thing because you can use a larger turbo which will make more hp at that given psi and still be safe with a 12:1 fmu which will yield a lower BSFC.

What I did was use a known boosted protege to prove my point. Yeah, if I changed out the turbo, it would yeild diff results, I agree. So let me calculate it w/ an N/A MP3...here we go...

chp=140
4 injectors
26.7 Lb/Hr
I'll even use your # of 43 psi (which is fine w/ me)
and 80% duty cycle

I came up w/ a .61. Pretty inefficient if you ask me.

Ok, let's do the same thing, for a p5...all is the same except HP...
.65. Even LESS efficient. yay for math.

 

[Kooldino]

Remember this is a NATURALLY ASPIRATED CAR. The ECU will perform as so... just because you add a FMU doesn't change how the engine will burn it.

Sure it does. I've already shown you why.

 

[b_real45]

Get off this post dumbass. You're posting bulls*** to try to make yourself look better. We've hijacked this thread so get the hell off it. Go to the other one.


- sorry HiBoost... this thread is back to ya-

 

[Kooldino]

(bowdown) I'm sorry...Oh...great...one. I tremble in your presence and beg for your mercy.

 

[DooMer_MP3]

So Kooldino, b_real45. After 6 pages of threadjackingly useless bulls***, I ask. Who's dick is bigger?

Chris

 

[igdrasil]

Just a stupid confussion and they both got my ass(owned)
(smash). Thats why I stopped my questions.

 

[Kooldino]

So Kooldino, b_real45. After 6 pages of threadjackingly useless bulls***, I ask. Who's dick is bigger?

Chris

What? We're having a realistic debate here...God forbid people argue over a point. It's not a "cock contest" or anything, it's two firm minded people going back and forth on an issue trying to come to an agreement.

The fact that you're calling the argument "useless bulls***" is silly...since we're arguing over things that will help the community better understand our engines.