Is it at all possible to get 300 whp while staying naturally aspirated? I'm dreaming...but hey sometimes dreams come true...

 

ummm... stage I turbos are making like 300 hp...

so i dont see how you would do it N/A

unless you did a crazy motor swap

 

bah I knew I was dreaming!

Would it be possible with a Stage 0 turbo and around 10 PSI of boost? Or is 10 too much for a Stage 0

 

Leslie's drag car makes more than that on meth.

 

Who's Leslie? What's meth(methanol perhaps?)?

 

Actually I remember reading about a NA K20A that was making 300hp, but it was a full blown race engine. It barely idled on it's own, when you were coming off the clutch it was either clutch down or full throttle so the engine wont stall, and the cams were super aggressive so there was basically no way to ever street it.

I'll look around and see if I can find it.

 

haha don't worry about it...this would have to be a daily driver


So a more realistic question would then be...what's the highest one could achieve n/a without doing an engine swap or anything of that nature

 

Leslie Durst has a drag Scion that has right at 300HP n/a
It took her alot of engine work. but she made it happen. I have seen her run at a few events.

 

bore the block
12.5:1 pistons
all lightweight internals
stroker crankshaft
p&p head
complete upgraded valvetrain
lightweight pulleys, and flywheel
standalone ecu (to raise redline to 9k)
custom intake mani, with induvidual throtle bodies
headers, and full exaust
larger fuelpump and injectors, with return style setup

...i think it would make 300whp. it would take alot more money than a turbo, but you would deffinetly be the only one.

 

Just get boosted. Go turbo or S/C if you wanna keep your warrenty. From what everyone says, it would cost a ton more going N/A and it would be a ton more work. You can always go boosted and do some engine work but F/I is your best bet if you want power.

 

200-225 might be possible n/a but 300 isn't gonna happen

 

Since engine swap wont, how about a car swap? I'm sure there are plenty of affordable alternatives that'll make 300 hp N/A.

 

It can happen, few parts modify and you all done. There is drag car without turbo or S/C running 9seconds 1/4miles so guess what that is more than 300whp.

port polish, better header, better exhurst, crak shift and pully, cam gear, Intake, intake mainfold weight loss too many many more, once you spend the money 300whp? easy. go to NHRA website to see more how all motor class running.

 

not a bad way to spend 10,000 dollars

 

It would definitely be fun putting all that together though

 

 

with that much? he's closer to 20k

 

gosh i wish i could just pimp slap people over the interent.. (shaking my head in disgust)

 

Say he gets 300whp N/A

Then add the turbo or S/C on it....
Wouldn't be a waste anymore would it?

450whp F/I with that kind of prep work??

 

sounds good in theory, but unfortunetly it doesnt work like that. to get 300hp n/a you you would have to raise compresion by way of high compression pistons. if you then went to try boost the engine the overall compression would be so high that it would raise the air fuel temp so high, that it would cause pre-ignition. you have to go one route or the other.