New answers tagged

0

It sounds more like a transmission issue than a engine issue. It sounds like it not going to first gear but when you rev the engine it upshifts into second and drive normally. I could be a slipping clutch. In automatics there are pairs of clutches for each gear. When changing gears one clutch applies and other partially applies until it moves fast enough to ...


2

I have had alloy wheels in extreme cold time of winter, and the ice build up causes the wheels to become unbalanced. I don't know if this is because of the type of metal the wheel is, or the light weight of alloy. I now have steel wheels for my winter tires and alloy for summer. I suspect the unbalance comes from the light weight of alloy, but maybe alloy ...


6

Mow much money do you have? :D In all seriousness: Swap in a later 13B engine and give it a fresh rebuild. Install a Racing Beat header and exhaust system. The Racing Beat intake is also pretty good. Mind you, this is setup for the upper rev range. Put a good carburetor on it, like a Holley 600 (mechanical secondaries). Do not remove the belt driven fan! ...


8

Just like with any other internal combustion engine, there are two ways to increase power output: add more cubic inches of displacement; make the motor think it has a larger displacement. More Displacement The rotary engine (Wankel) is a different breed. You cannot just bore/stroke the engine like with other piston based engines, so you have to go a ...


17

I agree with your praise for this car, I had one back in the day and I have never loved a car as much since. To get more from this Wankel powered beauty, it's all about two things: Getting it to breath better Replacing parts that won't take the higher RPM The good news is that the only part that needs to be replaced, is the RPM gauge sender on the face ...


7

One thing which hasn't been mentioned here about why a lightweight flywheel may not necessarily be a good thing for the street is, just like brakes, the rotational mass of a regular weight flywheel will allow for better heat control which is caused by engaging/disengaging the clutch during normal operation. The mass of a regular flywheel will be more ...


23

cdunn's answer is spot on. To add a bit (especially for cars), in a race car you often want to be dropping from something like 7000 rpm to maybe 5500 rpm (or an even higher band, depending on the engine) in a split second to make an upshift. Especially at higher engine speed, that's a lot of energy to bleed (and goes as a function of the weight of the ...


11

Physics dictates that rotational inertia impedes acceleration... which is why a lighter flywheel is considered to be a performance mod Less rotating mass = more acceleration, if all else is equal But rotational inertia helps an engine idle stably which explains why manufacturers don't go for lighter flywheels from the get-go If they opt for a lighter ...


11

The flywheel keeps your engine spinning The inertia of a flywheel is in direct proportion to the mass of the flywheel. Newton's first law of motion states, "An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force" With that in mind, motorcycle engines ...


41

The main advantage to a lower flywheel mass on race cars is that the reduced mass allows the engine to rev more freely. The overall weight loss to the car is really not the key thing, it's letting the engine vary RPM really quickly. Being able to change RPM quickly can mean faster shifts, getting to a power band more quickly, etc, etc. It also makes the ...


-2

No.. Max torque is not the max force you will have available to accelerate your vehicle at any vehicle speed. that point happens at max HP. Efficiency means how much you got out for how much you put in.. For most high performance engines, that points to the high HP levels, again, not max torque. At the point of max HP you are burning the most amount of air ...


4

Your sample may just be non-representative. All the ones I know (I'm mostly into Japanese performance cars) have oil temps. Even many non-performance cars have an indicator that goes out once the engine is up to temperature (such as my wife's Honda Jazz) I think cars like the M135i have some cost based design decisions in order to meet their price point - ...


2

Dual mass flywheels are susceptible to high energy loads, heavy acceleration and deceleration , towing does not help either, smooth driving and avoid towing where possible , this driving style will add considerably to life of the dual mass. The real reason for dual mass is simply to add additional revenue to manufacturer supported workshops, since the ...



Top 50 recent answers are included