Quote:
Originally Posted by Lapkritis
I would ask that you please don't encourage and reinforce thoughts that are not fully formed. How can you say this is correct: You need bigger brakes to stop a v8 because it produces more torque????
No. Absolutely incorrect. The output of the engine for HP/torque does not translate directly to brake requirements. Brake selection is better when considering the total mass you are attempting to slow (entire weight of the vehicle)and also the frequency of brake operation. Engine output is not primary in considerations.
You need brakes to match your driving style regardless of the engine swap. It's a popular modification to put smaller diameter rotor brakes on quarter mile cars so you can run a smaller wheel and thicker sidewall tires. If you are overrunning stock 944 brakes on the street then you need to slow down.
I'm aghast at the misinformation here. Absolutely ridiculous.
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More tq might just be a number on a page but I believe what he's saying is that if you have it at your feet, you'll use it more readily. So if you have the low down tq of an n/a V8 you might be prone to be travelling faster at the next stop light (wherever) than if you had to reach your peak (and lesser) tq at 5000 rpm. You may not be so inclined to rev the rings out of the motor to make it reach 100 mph with a smaller n/a motor. Just hypothesising here. Nobody is saying you need bigger brakes to slow down the same mass..but if the mass is travelling faster then perhaps you might. Same as adding stickier tyres. How would this necessitate bigger brakes? You go around the corners faster therefore reach your next corner at a higher speed. You brake at a certain point to pull you up in time to make the next corner or come to a complete halt. The brakes don't care about what motor you have up front, but they are used proportionally to the speed you're travelling at. With higher earlier tq you may just be going faster, sooner.
As for justifying a V8 swap on the basis that it produces 300bhp...puhleez...what would be the point? That would be just another ****box you see advertised on Craiglist...and I'm not even from the US. If you are going to do the swap, you want at the very least 400bhp and then, yes, you should factor in for the better suspension, brakes blah blah blah....