was A15 engine fit in 140J 4 doors?

Yes, it'll fit, but it is probably not designed to go in it.

"140J" is a local region marketing name. It doesn't tell us which engine you have, let alone which car it is.

Most 140J's are Nissan 710 chassis models, with L14 Overhead Cam engine. The A14 & A15 are regular cam engines, and fitted to the smaller Nissan chassis like B210, B310 and N10.

so the standard engine is L14. any suggestion for tuning up this type?

put an L16 , L18 or L20 in it.

what about the carburator. coz mine still using the standard one. but its still not run smooth eventhough its going a lot of service. any idea?

rebuild your L14 and have a small OE turbocharger fitted to it.

L14 are THE ducks nuts when it comes to revs. RPM (L14) X torque (turbo) = horsepower

god i wish i could get a hold of an L14 over here.

and what is meant by

Quote:

regular cam? you mean antiquated camshaft technology? all new cars worth talking about have OHC, so wouldn;t that be a "regular" cam?

Quote: Ummmm, NO.
The current Gen III & Gen 4 Chevalay engines still use "regular" cam placement, ie, in the block. This is the same place as the very first Chev OHV V8 engine had it in 1917. I suppose that this would make it "current" technology,... or even "apropriate" technology.
Hell, the very first OHV Chev 4 cyl had it there in 1912 & Buicks since at least 1907
With close to 100 years of continuous production of regular cam placement from just one major Automaker, i guess that it qualifies as "regular"

DOHC & multivalve designs are very nice,... i suppose, but are both expensive to make & un-necessary when producing a perfectly good automobile.

Remember, it was an antiquated technology engine that brought the Holden Monaro home first in the 24hr race at Bathurst,....twice, while competing against all the exotica that the competition could muster. Even the Ferrari had to pit twice,.... for an engine change.

Call me antiquated too if you like, but show me a pushrod engine & i'll show you a proven design.

Hey omiekagawa, where are you from? Fill in your profile with your location so we can help you better.

Quote:

no, it was a completely different set of rules with far more freedoms than any other car in the series that brought the Monaro home first...

every other Nations Cup car has to use the production engine for that model. They have to apply to Procar if their maintenance includes plans to fit oversize pistons. Monaro got to use a much larger capacity, motorsport only block, from the a different country. Meanwhile the production exotics all have inlet restrictors fitted by Procar too...

other Nations cup cars are not even allowed to remove the plastic mouldings in the whell araches. Monaro was allowed to fabricate completely new inner wheel arches to accomodate much larger tyres.

other cars brought into the country for Nations Cup had to remove roll cage members which went outside the cabin at not inconsiderable expense. Monaro has 8 roll cage members in the engine bay.

every other Nations Cup car has to run a ride height such that if both tyres on one side of the car are flat, the underbody inclyding exhaust does not bottom-out. Only the Monaro was allowed to modify the floorpan to recess the entire exhaust system to allow it to be low enough.

every other NC car has to use production hub assemblies and suspension with freedoms to springs and shocks. Only Monaro was allowed to run complete V8 Supercar suspension and brakes.

Other NC cars are only allowed to move suspension pivot points up to 25mm, but the Monaro gets to change it's entire rear end layout from the production IRS to V8 Supercar spec Ford 9" live axle with full spool.

The Ferrari 360 Modena was a late starter in the 24hr race, brought in at the 11th (23rd?) hour to make up numbers. It was not properly prepped for an enduro race. Besides, it is a production Ferrari 3.5l engine with inlet restrictors fitted. The end result is that the VW Golf consistently outdragged the Ferrari 360 Modena on the front straight at Sandown. unfknblvbl!

sorry, but people going around saying how good Monaros are, or in this case how good its old technology was, basedo n the NC/Bathurst 24hr performance is a bit of a sore-point for me. btw, that is the abridged version of the story - there are even more major freedoms that were only available to one car in that feild.

bottom line - Holden marketing greased Procar's pockets and pulled off the marketing coup of the century.

Monaro, the game's up

I read this thread with amusement. A pushrod engine is antiquated? Good one! Someone needs to tell the Buick Grand National guys, Here that they're running antiquated motors. I don't want to be the one though. Let's see, they're pushing low 7's in the quarter with a 3500# car, (and a Buick V6 pushrod block), what do you have? On another note, maybe you're old enough to remember in 1975 when Smokey Yunick ran a 207 cube small block Chevrolet at Indy. 3.4L at 1200 horsepower. Indy changed the rules so he couldn't run the next year. Maybe you also remember Gale Banks, in the early 80's drove a twin turbo 350 Chevrolet small block in a Pontiac Firebird to the Utah Salt Flats to set a land speed record in a doorslammer. 240 mph with 1300 hp as I recall. Then he drove it home. What did you say you had? OHC, what's that? Let's not forget NASCAR, those guys are running ~6 liters at about 770 horsepower, all day long. 130 horsepower/liter NA isn't too bad on a restricted motor, wouldn't you say? If you want to see what a street pushrod motor will do, visit Lingenfelter's site. And hey, remember, his cars are street cars and very refined (read driveable for the mucky mucks). I remember reading about the new Ford V8 when it came out several years ago. Being a small block Chevrolet nut for the past 26 or 27 years, I recall that the Ford SOHC and DOHC's weigh more than a small Chevy. And they are WIDE.

Even though you may not like pushrod motors, there is a design aspect of them that makes them desirable in certain applications. They make for a small, lightweight and rigid package. With the sloping hoodlines of some cars, (Corvette), an overhead cam isn't an option when you mount the engine longitudinally. When Chevrolet redesigned the small block several years ago, they found that there wasn't a benefit to going with OHC's on a production car. This is the exact same conclusion Smokey came to in the late 60's when Chevrolet started playing with multivalves and cams atop the heads. (remember the Moser heads? arrgh!) Smokey advocated port refinement. That's the direction the small block has gone. You will find some of the best flowing intake/exhaust port configurations in the world on the latest small block heads. In case you haven't noticed, I am a small block Chevrolet man. I like my Datsun, but there's just something about the music of a V8 winding up through the gears, no need for a radio or cd player. And yes Dodgeman, one of these days I will be building a "Reynolds Wrap Hemi trap" and I will go Hemi hunting. A good retirement project. Have a good day.