Is it throttle body or what? Will it be easy to cheat or harder?
Is it throttle body or what? Will it be easy to cheat or harder?
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Looks like port injection.
http://editorial.autos.msn.com/blogs...b-94c306baf5ff
Wish the pictures were larger in the article.
It's a Hoosier thing, you wouldn't understand...
It's a Holey TB, with a McLaren ECU.
It's very limited, and only time will tell if it's easily cheatable.
I think you'll probably see a bunch of "Rules Clearifications" this year, and probably 2 or 3 at Daytona.
"IRL" ... what IS that anyway?
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They call it "electronic fuel injection" but isn't throttle body fuel injection just a step more advanced than a carburetor?
Holley makes the throttle body, Bosch makes the O2 sensors, it is sequential multi-port injection just like production cars and McLaren supplies a spec ECU with a "tuning range" in it.
"I kill for the code to disarm this mess..."
TBI= Toilet Bowl Injection.Originally Posted by uh_clem
NASCAR has finally made it to 1980's technology
D-R, It's not "cheating" it's creative rule interpertation.
"If there are no dogs in Heaven, when I die I want to go where they go" Mark Twain
Sorry milliesdad, it is NOT Throttle Body Injection....it is port fuel injection.
new sig pending
WTF, O?
I stand corrected.I'm really not much of a NASCAR fan.
They are finally up to the late 80's, early 90's.
AKA, Glacial Swiftness...I stand corrected.
They are finally up to the late 80's, early 90's.
How many sensors in this system? Back in the Stone Age - 1991 - Polaris introduced EFI on their snowmobiles which had 5 sensors to vary the map. I believe they are up to 18 variables now.
Here's what they should have done:
Article from Gordon Kirby on the development:
http://www.gordonkirby.com/categorie..._is_no324.html
Yesterday's Cup race at PIR had some interesting fuel injection issues...
McMurray's car blew up after running out of fuel on track and a pit stop. Same thing happened to another driver, don't remember who. Judging from all of the white smoke produced via the exhaust the cause appeared to be a holed piston after the car leaned out as a result of fuel starvation.
Tony Stewart shut off the engine to save fuel and the car would not restart. It looked like a power off reset cleared the ECU problem but the announcers didn't confirm this.
I think there will be some painful lessons learned as the season goes on.
I could see the injectors failing by starving them of fuel, but I don't know about "blowing" an engine because of it. Was there more of an explanation? I suppose if one was running lean, that could lead to a hot spot on the piston, detonation and then a holed piston or damaged rings.
That's exactly what I am saying. And I guess the definition of "blown" can be subjective...when it's pumping out white smoke and the car isn't going fast anymore I'm calling it done.
I guess we agree...it just took a couple of sentences to get there.That's exactly what I am saying. And I guess the definition of "blown" can be subjective...when it's pumping out white smoke and the car isn't going fast anymore I'm calling it done.
Article from Motor Age.
http://motorage.search-autoparts.com....jsp?id=762855
"It is a besetting vice of democracies to substitute public opinion for law. This is the usual form in which masses of men exhibit their tyranny." - James Fenimore Cooper
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