difference effects in hp on all motor and turbo, why?
 

if i had a 93 hatchback with gsr with some upgraded parts and it had 200 whp
compare to a
93 hatchback with a gsr with turbo and it had 200 whp

should i have around the same time with same driver/clutch? if not, how come its different even tho the hp are around the same? I know it mite be a stupid question but yea i dont realli understand...people say all motor cars with equal amount of hp and tq as turbo cars are faster..can someone clarify :)

Re:difference effects in hp on all motor and turbo, why?
 

Simple.

Your FI cars are "all motor" until the boost kicks in. During that short RPM range they are suffering with their base spec of 140 HP (or whatever), and even some restriction on that from the turbocharger exhaust setup.

All motor usually has that bottom end advantage that the turbo lacks. Does this make sense?

Yeah, well VTEC messes up my entire theory either way.. hope I gave you a little bit of insight.

Re:difference effects in hp on all motor and turbo, why?
 

HP numbers are only PEAK numbers. Just because you make 200 HP doesn't mean as soon as you touch that gas you are putting out 200, all that means is that some point in your powerband you make it up to 200. So, you could be making a PEAK of 200 WHP at 6500 RPM, but have an ass bag of a laggy car that can be pulled by pinto's before boost.

Re:difference effects in hp on all motor and turbo, why?
 

ooo, but most of the time all motor cars are faster with equal amount of hp?

Re:difference effects in hp on all motor and turbo, why?
 

Damn, I should have gone something along those lines.. what the hell is my theory based on again?

Re:difference effects in hp on all motor and turbo, why?
 

Numbers don't really mean ----. Look at the dyno graph, more importantly the torque curve. Usually with a tubo, you get a sudden jump in the tq. curve when it kicks. On most all motor apps i've seen, the tq. curve is friggin pancake flat, which is what you want. The key is having the most tq. you can have for as long as you can in the powerband, not just gobs of power for the last 1000 RPM. If you run at a constant 10 MPH, and some other guy walks at 1 MPH, then sprints at 15 MPH for 2 seconds, who's gonna make the quarter mile first?

Re:difference effects in hp on all motor and turbo, why?
 

alright, my theory has been rejuvinated.

Re:difference effects in hp on all motor and turbo, why?
 

hahaha

Re:difference effects in hp on all motor and turbo, why?
 

Actually in most cases a properly setup 200hp turbo car is far quicker than the equivalent 200hp NA. Reason being that the turbo car should have more torque available.

An extreme example. 320bhp rally car with restrictor plate. Makes 540ft/lb of torque. But it's only 320bhp right? Well it's about 300hp at 3000 rpm. 320hp at 5000 RPM as well.

-Michael

Re:difference effects in hp on all motor and turbo, why?
 

Torque? What's that? I drive a honda :-X

Re:difference effects in hp on all motor and turbo, why?
 

true because turbos tend to build torque, thats why you can see a few turbo cars pushing more torque than hp

Re:difference effects in hp on all motor and turbo, why?
 

The main discussion in this thread is traction. In a NA car that has 200HP the HP is available much earlier which in turn creates more wheel spin and loss of power up top. A turbocharged car is a lot more adept to racing because of its lack of torque at low rpm which cuts out wheel spin and makes more usable power in the actual race. Damn this is going to be a long reply. In a NA car the HP and TQ curve are more linear than in a forced induction car. In a turbocharged car the real power kicks in usually around 3500 (give or take some depending on car and turbo). When racing most of the time the car is in the turbos most efficient range (3500 and up) so its in its top power level. In a NA car it may be a better daily driver because of its torque at lower rpms but torque means very little when racing. Unless of course you drive an older domestic that needs the torque to take of with its heavier wheight. Damn this topic could write a novel :-\.