Speeddoctor-Quiz- on Nissan Knowledge

[Ace2cool]

Haha, I haven't the slightest clue on this one... These are hard this time, Doc.

1. I don't know if this is even a 240Z-280Z type question... Not even gonna guess...2. I think it was the Leapord. Not entirely sure though, cuz I think that's what the J30 was called...3. I DO know this one, though. 1 lb unsprung is equal to from anywhere from 4-10 lbs, depending on where you remove it from. The further out from the spring/strut, the more impact.

Oops... Just realized the question asked how much it was equivalent to.... that's 40-100 lbs, depending on where it was removed from.
Modified by Ace2cool at 6:04 PM 1/14/2010

[Tech_In_Training]

wow, this one's difficult... Uhh *BUMP*

[seang]

SPEEDOCTOR QUIZ #4:

1. The side draft Hitachi is modeled after what carbie

2. The Infiniti M30 in Japan is known as what?

3. A reduction of 10 pounds in rotational weight is equivalent to how many pounds of static weight?

1. Skinners Union

2.

3. 100lbs

[hannibal]

1. I think Mikuni and Hitachi are the two styles of side draft carbs. That is all I know about this question...

2. Leopard!

3. Sprung or unsprung?!?I think its 4 times, so 40lbs. But Ace has a point. The further the weight from its axis of rotation, the greater is equivalent static weight.

[gmac708]

SPEEDOCTOR QUIZ #4:

1. The side draft Hitachi is modeled after what carbie

2. The Infiniti M30 in Japan is known as what?

3. A reduction of 10 pounds in rotational weight is equivalent to how many pounds of static weight?

tough questions1. Weber 2. Nissan Slug 3. 20 lbs

[Speeddoctor]

Ah, this is a good brain teaser......A little mix of some different things. Its fun to see you guys working on this......SD

[Speeddoctor]

You know, 1. Hitachi side drafts came on the roadsters, early Z cars.......do we not have any owners of these cars?????? 2. Is the M30 a forgotten relic? 3. Doesn't anyone drag race?..........the end is coming.......prepare ye the way.......

[Koshin]

the doctor is in the house!

M30's are baller...

I drag race (but prefer circuit racing)...

and yes, the end is near

[Ace2cool]

Haha, there's always 1 question in these things that I have no clue about.... I'm gonna know all of them one of these days!

[Koshin]

jdm m30 = Leopard

[Speeddoctor]

Ha ha good job guys!!!! Thata way!!!!!! I'll have to do a point system and give yall a point for each correct answer.....a little more work....but worth it! That was awesome! Y'all have a great day! SD

[MinisterofDOOM]

2. Is the M30 a forgotten relic?

Heck no. Lots of M30 love around here.

zerothread?id=132564

[Speeddoctor]

lots of reverands and ministers....but that avatar gave me chill bumps.....no offense, but doom....do they look at you oddly in the Q?

[hannibal]

tough questions1. Weber

Doh! Good call on Weber!

[Speeddoctor]

Hannibal: are u saying weber is the right answer?

Comon guys just a day left!

[hannibal]

Yeah, I'll go with his answer.

[Speeddoctor]

good nite.......answers in AM

[gmac708]

g-night doc

[Speeddoctor]

aweeeee I loke the little squirrel avatar he's cute and persistant! I hope he gets his acorn soon. Gmac 708? How r things in Columbus? Is Papa Joes still on High Street? Ahh beer in a five gallon mop bucket.....pickles on the forehead...
Modified by Speeddoctor at 9:56 AM 1/17/2010

[Speeddoctor]

Now the answers you have all been waiting for...BTW did Greg try? We r looking into doing the quiz in audio for Torre since the Georgia-boy struggles a little with the written word

Answer 1. The side draft carbie that Hitachi bought rights from and greatley improved, was the British SU which was on cars like the MG (Morris Garage) Triumph, Austins, Jaguar and basically anything Britsh..even some motorcylces. Seang was correct in that SU=Skinners Union. (wow) (BTW Skinners union was not a union of pedopshiles) The side draft Hitachi came on cars like the Datsun Roadster, and 240Z just to name a few of the models from Datsun that were Weber equiped. It is still a great carb up-grade for small displacement old school Datsuns like the 320 trucks and 411 wagons...u can get the manifolds from down under. The Weber is Italian and use different and much more complicated and troublesome technology. Carb experts are still divided as to whether they would run Webers or Hitachis on a small-displacement race car.

This carbie is a real example of Nissan's great wisdom in that keeping it simple was the answer for both production cars and race cars.....in a race, there's nothing like blowing past ( in a Datsun) the European based rase cars sitting on the side of track...after the spitting and sputtering ceases and they are dead in the water....10 bucks says its a Weber.
Modified by Speeddoctor at 9:58 AM 1/17/2010

[Speeddoctor]

Answer # 2: In Infiniti's (Nissan's "luxury line") birth, they had some new originals like the Q45....but they drew on some older Japanese platforms to fill in the gap. One was the Nissan Leopard. This car began its life in Japan in the mid-eighties, and did so here in 1990-1991. Many have always thought it was a very appealing car...it had a very reliable VG30E...and it starred in a movie.
Modified by Speeddoctor at 10:00 AM 1/17/2010

[Speeddoctor]

Answer #3:

The reduction of 10 pounds of rotating mass=the reduction of 100 pounds of static mass. Items that fit in this category are wheels and tires, differential components, driveshaft, transmission components, clutch, pressure-plate, flywheel, crank, rods and pistons......Wheels are a great way to start:get rid of those 24s....they look stupid anyway on your 510!

Stay Tuned for next weeks Quiz! Good Job everyone!

[raremotive]

Hmm.



Actually the rods and pistons are considered reciprocating mass, because they go under complete reverse direction of motion and have greater inertia effect against power production.

The 10x guide doesn't make sense to apply to a piston, like it could on a rim when they don't share the same motion characteristics down the strip.
Modified by Rare_f8 at 2:22 PM 1/17/2010

[speeddocsson]

Rare: I anticipated a well educated debate on this......I made some generalizations...the point being that the 10X rule is a rough/relative mathematical relation to static mass....The real issue is the energy involved in overcoming zero or static inertia to achieve rotating high speed inertia involved in moving these parts. Since the pistons and rods are connected to the crankshaft, their weight is also a factor in the start-up energy required for rotation, or energy required to accelerate the mass to higher rotational speeds. It isn't all 10X necessarily, but the piston/rod assembly is still a strong factor that affects the rotating mass of the crank-rod-piston assembly.

The point in including all these parts is for the reader to understand that once he or she has gotten rid of all the static weight he or she can, there is still a lot to be gained by focusing on rotaing mass.

Very appropriate Avatar for this post!

Thanks for your thoughtful input...ah there is hope....

[Speeddoctor]

Speeddoctor Quiz #5 BTW that last post was me...I automatically logged in as Speedocson again....Good kid but.......OK Quiz#5:

1. What rear engined car did Ralph Nader can with a vengeance?

2. The first corvette had how many cylinders?

3. The 16 cylinder Bugatti has its 16 cylinders in what configuration? W...V...X...Y....Z?

Why no Nissan questions? Because a NICO member should be able to hold an intelligent conversation with a none-Nissan freak say Jay Leno.....and make his/her mom proud and NICO proud!!!!

Good Luck!

[Beancooker]

1. What rear engined car did Ralph Nader can with a vengeance?Chevy Monza

2. The first corvette had how many cylinders?6 cylinders

3. The 16 cylinder Bugatti has its 16 cylinders in what configuration? W...V...X...Y....Z?W16

[Gold Digger]

#2If you are talking about the first production model Corvette, the 1953 had an inline 6 cylinder, also known as the Blue Flame. Can't remember the displacement, but was near 250CI.

#3The Veyron is a W16 Quad turbo engine.

[Ace2cool]

Speeddoctor Quiz #5 BTW that last post was me...I automatically logged in as Speedocson again....Good kid but.......OK Quiz#5:

1. What rear engined car did Ralph Nader can with a vengeance?

2. The first corvette had how many cylinders?

3. The 16 cylinder Bugatti has its 16 cylinders in what configuration? W...V...X...Y....Z?

Why no Nissan questions? Because a NICO member should be able to hold an intelligent conversation with a none-Nissan freak say Jay Leno.....and make his/her mom proud and NICO proud!!!!

Good Luck!

Haha, mixing it up a little, huh?

1. Only thing I can think of would be the book he wrote, Unsafe at Any Speed, which targeted the Corvair. Not sure if that was the one he "killed", but it was rear engine.2. First 2 years only came in a 6 cylinder.3. Pretty sure it's a W16.

[Speeddoctor]

Oh my word!!!!!!!!!!!!!!!!! What!!!!!!!!!!!!!!!!!!!!!!! a flurry already !!!!!!!!!!!!!! and good answers!!!!!!!!! what WHAT I say does this mean????

NICOlings, ( I coined this) you are more excited about non-Nissan information? and you know more too????

Di da ah wa ma ....my circuits in my brain!!!!...quick hit the cognitive coolant button!!!! heat heat heat building....can't can't conceive....Greg? Torre? help!

In all seriousness....thats awesome...because I love everything about cars and bikes!!!!

[Gold Digger]

So, what's the next series of questions, Dr. B?