Backpressure debate

[Leadfoot]

This is pointless to argue, but here goes.

Just because NASCAR does it, does not mean it is optimal. Racing bodies are generally governed by rules that make the cars more competitive, not that which makes them faster. (Indy and tire restrictions, NASCAR with restrictor plates, Circle track cars with Vortec head restrictions, just for a few examples of rules that don't produce faster cars)

NASCAR teams don't run restrictor plates because they want to, but because they have to. It doesn't make them faster.

I would be willing to bet money that NASCAR has restrictions on exhaust, and that every team out there is running as close to that limit as possible. Not by choice, but because they HAVE to by NASCAR rules.

I would also ASSume it would have to do with noise restrictions as well. Most tracks are located in populated communities and I'm sure noise pollution is a factor. I know that some of the fairs that we pull at have noise restrictions and there are times where we have to stop pulling by a certain time due to the local noise restrictions.

I'm not saying this is the reason, but it might be a contributing factor. Also, I'm assuming some sort of exhaust is needed if only to route exhaust and exhaust heat away from driver and critical components, not for power enhancements.

 

[dirtwarrior17]

lol. ok my turn. you just said with that reasoning restrictor plates should make power then told me the plates make them more competitive and they have to run them. Dude common my mom knows this. RESTRICTOR PLATE doesn't sound like a part thats gonna make anything go any faster. I watch all the races and i know what it does and looks like. i never said whatever nascar is doing is the best because i don't have to. Naturally aspirated 357 cid motor making 800+ hp. These guys spend millions and millions of dollars to research all the power possibilities in a stock car motor. spend hours and hours on the dyno tuning motors week after week. WHAT NASCAR DOES IS THE BEST FOR RACING AND HP but for everyday driving you would run a lot more pressure and a lot less rpms. LIke i said in last post.

 

[dyeager535]

i never said whatever nascar is doing is the best because i don't have to.

If the best way to run a motor was withouth backpressure nascar would have been runnin straight headers instead of dual exhaust.

 

[dirtwarrior17]

i never said whatever nascar is doing is the best because i don't have to. Naturally aspirated 357 cid motor making 800+ hp. These guys spend millions and millions of dollars to research all the power possibilities in a stock car motor. spend hours and hours on the dyno tuning motors week after week. WHAT NASCAR DOES IS THE BEST FOR RACING AND HP but for everyday driving you would run a lot more pressure and a lot less rpms. LIke i said in last post.

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