last time I checked, 372whp wasnt 400…and it takes a good amount of motor work to get there? No?
It is what it is. LS1s are making more power with displacement and dividing that stress over larger bearing areas and cylinder bores. The STI or any small displacement turbo motor is built for the added cylinder pressure it takes to make less than half the displacement make as much or more HP. Unfortunately that is still alot of stress. My LS1 could easilly make 550hp on 10 psi but at 20-30 psi it would never stand a chance with stock pistons and rods like turbo motors. The LSX engines are advanced in OHV technology and flow but obviously the DOHC engines with 4-5 valves per cylinder will always flow better than 2 valves per cylinder.
There are a couple K series honda builds over 400whp. Streetability however… :runaway
And than there is the whole other point that the vehicles that the LSx family of engines are in are usually a good thousand pounds heavier than the lightweight Honda econboxes. It really is apples to oranges =/
1000lb’s? I think not. My LS6 weighs less then my iron block 3.8 weighed…are you forgetting that LS stands for Aluminum series??
linky linky…
“Weight of an LS1 block is 95 lbs”
A complete long block LS1 weighs 430lbs…
And how much does your car weigh? According to this random site http://www.carfolio.com/specifications/models/car/?car=20801 a 98 camaro weighed in at 3400lbs. Now how much is a mid 90s CRX? According to that same site, 2300 lbs. Granted there are lighter muscle cars and there are heavier Hondas but thats an 1100lb diference which is larger than the figure I used.
you were talking about motor weight?..now your talking about car weight? which is it man. I can fit 2 crx’s in the length of my car. Its a boat. No wounder it weighs 1000lbs more, but not even 1/4 of that 1000lbs is because of motor weight which is 3 times the size of the motor in the crx…its all body weight.
Reading comprehension owns you? Read my first post “…vehicles that the LSx family of engines are in…”
5 valve per cylinder is laughable. the VW 16v head flows nearly double of what a 20v head can. i wish i had a 16 valve head on my car right now. its been done, but it takes lots of work and a stand alone system to run it… even a big port 20v head, ported with cams flows equal to or marginally more than a STOCK GSR HEAD
DING DING DING
:ahh
Really weird logic. Are you saying that NA cars are more streetable? That makes 0 sense to me. I guess it matters what your term of street is but in terms of HP, the FI typically is more streetable as it can be controlled and it generally isn’t made directly off throttle.
Not sure what big cubes have to do with streetability?
Let’s be clear and say this isn’t an import issue but a STI issue if anything. Plenty of import blocks (domestics too I assume?) can support 600-1000WHP on bone stock internals. But, as you eluded, there is more risk when you are cramming boost and timing down a smaller displacement to make the power.
That sucks. I can name a few imports that can easily. 
I wasnt saying that n/a cars are more streetable im saying the bigger the cubes, the more power you can run while still maintaining streetable, even moreso with an f/i car, hence why you dont see little hondas running around with 400whp cars, because it just isnt streetable, not sure how else i can explain it
Huh? Throw a LS1 in a honda with 400WHP and there isn’t much difference. The determining factor in that is the car is FWD and weighs like 2500LBs. Not the engine size, course a large turbo hitting like a ton of bricks when it spools wouldn’t be to fun if your trying to get to McDonalds with your grandma in the car so I guess that argument holds some water if you floor it everywhere ya go =D
what the fuck? Are you smoking crack? What the hell does anything you just said have anything to do with displacement whatsoever?
How does the bigger cubes make it streetable? I can go to and from the store making over 500AWHP on pump gas and drive to NYC/Albany back without an issue. I know several other cars like that. I can see the argument for NA vs FI because the FI car can adjust its output.
Honda is a really bad example as it has some of the smallest displacement motors, needs a swap typically to make power, needs FI/spray to make power, and is FWD.
How about I use the almight 17XFWD Mustang GT of the 90s as the icon of the domestics?
i could go 500rwhp on pump gas and less psi than you without an issue,because i have more cubic inches, i have a lot more room for air to travel and detonate. i dont think your understanding me, we are agreeing i just think we are on different pages, f/i eats up bad street manners, for example if im running a big cam on my car, it would suck but if i had a procharger it would help out with the cam on the streets. ANother example if im running a 427 lsx i can run a huge cam in it, if i took that same cam and put it in my 346 it probably would barely drive, the cubes eat up the streetable of the cam. There is an old saying “theres no replacement for displacement”
Thats what I was saying genius. no matter what displacement engine is put into a honda it still won’t be very streetable at 400WHP. But because of the car its self, not because of the size of the engine. So it does have nothing to do with displacement.
You can run 500 WHP in your car and remain streetable cuz your in a 3500LB RWD sports car. That is a whole world of difference from a 2500LB FWD econo-box. Does this make sense to you or is it to simple of a concept to make it through the large displacement of your skull.
i knew a guy that had a 90 rx-7 he nuked the rotary and put a tuned port 383 small block in it with the t-5 tranny it felt better wit the 350 hrs small block in it than it did wit the rotary in it and a hell of a lot faster
If we both make 500RWHP on pump then what would less boost have to do with streetability? You are correct. You should make more power with more displacement but I don’t see how the bigger displacement affects/helps streetability?
The majority of imports that make 500WHP or so seems to be much more streetable than their domestic counter parts that typically need the engine modifications to do it. I think this debate can alter depending on what power level you talk about but I just don’t see how the size of the motor is part of the debate?
Neo brings up good points too.
Laugh. I think even BobbyT would agree with this.