yes, and you would want your powerband to be in the highest possible RPM range.

What does forced induction do? Oh yea, forces the engine to flow(DISPLACE) more air. Same thing as getting a larger engine.

And who cares about all these classes and pro races, doesn't anyone just build a car to go out and have some fun at night?:dunno:

Apperently not, it's all about the 9 seconds now, not about the fun, it's like saying a shifttronic tranny is better because it shifts faster and smoother, but there's no fun involved, cars are supposed to be about fun.

not nessecarily........

by changing cams you can change the powerband to your desired needs. Displacement is the biggest factor I've seen on how the torque curve is placed, you really can't compare a 2 liter to a 6 liter. The 6 liter will have more torque down low no matter what you do to it, and you can still tune it to run high RPM's and good horsepower up there...

Thats why I like the LT-1, a good iron block torque monster that has GREAT top end pull......... you just haven't enjoyed yourself until you take an Impala SS up to 160mph down the south florida interstates...and that baby has GREAT top end....it waistes many a cars on the top end that would beat it in the 1/4.....

The 3S-GTE was the old GT500 class motor. its now in the GT300 cars

horsepower = rpm x torque / 5252

there are otherways to get torque to the ground than a bigger stroke. take the Honda guys, they dont have much to start with but they know if they get the engine to start making power at 8000RPM and then put a 5.6 Gear in, they'll get more than enough torque in first gear for a Sub ten second run. with the top end to pull harder though the traps. Also its not just your beloved roots that a "displacement increase" its any forced induction system.

The Reliability part is ture though - less energy through each bore = less stress on all parts involved


Whatever, I could argue with you about torque versus Horsepower all day but in reality it comes down to a matter of opinion. personally I think all those 450ft.lbs @ 2000RPM cars are useless for anything other than showing people how quick you can pass without shifting and the feeling for waiting for spool and then having the power grow exponentially is awsome... but thats just me.

i think the character of the engine is dependent on HP/Liter. thats where american cars suck ASS. yes you have torque yes you have good 60 ft. times but your trap speed will be 101 mph and the last half of the run you arent doing shit. it feels fast to drive, but fuck, its not that cool. shit like M3's (something like 115 hp/liter) S2k's (120hp/L on the F20), rx-8's (over 120 i think) gives it that high-revving excitement. thats what says sports car to me, not grunting your way through all 4000 rpm and banging out a shift into your second out of three total gears. i want to rev the fuck out of it and hear that shit scream. again, its just personal opinion though. but cmon even the new corvettes are only like 90 hp/L. do SOMETHING BETTER WITH YOUR DAMN 6-7 LITER ENGINES.

BOON FACE (sorry for stealing your expression chuki)

lol like that one do ya? I dont care if you steal it, you used it at an apropriate time. That kid obvioulsy just watched formula d and caught on to the 240 scene.

me like my sr...me like revvvy motor....

what r we talking about now? V8's?

sorry!

Funny how our engiens last well into 300k turbocharged and making power when most V8s need rebuilds around 100k.lol I'll give them 200k nowadays. CAn you say naturally balanced are the inline engine?

personally I think all those 450ft.lbs @ 2000RPM cars are useless for anything other than showing people how quick you can pass without shifting and the feeling for waiting for spool and then having the power grow exponentially is awsome... but thats just me.


you've never had a high torque down low v8 then. When I've raced lighter cars with less power but still almost as fast, the down low torque on the launch just kills them.... Launching with 320lbs of torque against 215 lbs of torque is just a whole different ball game. And whoever launches the fastest has the jump on the race under most circumstances. This is a fact that is undisputable. Torque is whats going to push you off that line, and you can wait for your spool and have an exponential burst of power, but in the end if the V8 has the same horsepower(which a lot of them around here have more then 85% of Sr20's in america) numbers to match your are just going to plainly lose.

Having the traction to take a 400+lbs of torque launch is a beatiful thing.

want to talk about top end pull? My neighoor just dyno'd 530rwhp on a daily driver LS1 Firebird, and he has a 200shot of N2O on top of that working perfectly.... I just haven't really seen any Sr20's that can F with that........sure some are really fast, but if your trying to keep up with the Jones' you need a bigger motor.

well build up the SR20DET and that v8 will have a hard time with it. SR20 with HKS T28R will make mad hp for a light car like the 240. a good tunning session and it will fly!

400 whp on a 240, u will fly!!!

want to talk about top end pull? My neighoor just dyno'd 530rwhp on a daily driver LS1 Firebird, and he has a 200shot of N2O on top of that working perfectly.... I just haven't really seen any Sr20's that can F with that........sure some are really fast, but if your trying to keep up with the Jones' you need a bigger motor.

530 is not too much to overcome. and you cant expect to win these arguments by saying O ya it has N20 too. so yeah theres plenty of SR's that can PULL on that not just pull on it. come back with a better example.

horsepower = rpm x torque / 5252




basically tuning N/A increases the RPM at which max torque occurs, thus adding hp.
increasing displacement/using forced induction increases torque at an rpm according to the characteristics of the turbo/SC/CI increase and the engine. a turbo or SC perfectly matched to the engine will in theory increase the powerband equally over the entire rpm range, from the moment it hits full boost to redline.

this is a very general spec statement full of technical holes but it is a basic guidline for nuubs to go by until they learn more

You basically tune for the highest possible RPM range period because that is the point at which you are flowing the most mass of air. Increase VE there so you can flow the most amount of air. AKA cam it for there. But camming an eigne like that def decreses idle-mid RPM range. FI just increases flow without changine cam profiles. duh.

Like this SR20DETpower?
http://nissaninfiniticlub.net/photopost/data/500/19378Right_rear_cama.jpg

How's this for traction? narrowed Ford 9", spooled, and 13.5" slicks
http://nissaninfiniticlub.net/photopost/data/500/19378slicks.jpg

V8 pwr. 388cid SBC.
http://nissaninfiniticlub.net/photopost/data/500/19378Engine_pic_cama.jpg

Car layed down 470whp and 399 ft/lbs of torque. For some reason, I can't ever get these dyno graphs to upload. Hit me up on AIM and I'll send them to you. nissanfanatic240

I dunno I just don't see many 500+hp Sr20dets around in the states, especially daily drivers...

and i also don't understand the math as to how a 500hp sr20det is faster then a 700hp LS1.

you can take your weight advantage of 2600lbs to 3300lbs roughly so give or take 700 pounds, that will in no way whatsoever make up for 200hp...especially if the camaro is lightened as this one has a few weight reductions.


both from a standstill and a roll the SR would get smoked terribly I would have to say..

this is why for ultimate power and something that I want to actually be fast I would only consider a v8, because your 4 cylinder will top out at a maximum power output way before my 350 will, and the 350 can still add on more power. You are showing up to a gunfight with a knife. I will shutup before someone with a big block smokes my ass LOL

Even if it kills the SR, the SR will be fast as hell and be a hell of a lot of fun and get more props, id be very happy with that kind of power with an SR, even if 1 out of 100 cars can beat me, you can't win'em all.

ok well first of all im not talking 500 hp SR's. and yes, i concede, i doubt they are daily drivers. but the thing is an 800hp SR will NOT have nitrous because thats just not how they tune them. bottles are for babies, the car is fast without nitrous, it doesnt really need it except to compensate for a little somethin......

of course, more displacement with equal mods will be more power. all im saying is there are plenty of SR's in japan that your neighbor friend would get beat by. and none of them have N20.

why do you think SR's max out at 500hp? and we are long long long past the realm of daily drivers here.

Anyone remember phatka-t? 638whp IIRC? 599ft/lbs of torque? I bet that 4 cylinder will put a hurting on the LS1. Power to weight Ownz.

im thinking of an HPI S15 Silvia i saw in a modified that was like high 500's to the wheels and like 500TQ. with far superior aero and far superior weight reduction. they were on like 21 psi, and if they were making it a drag car im sure it could go much higher.

hell yeah, i saw the vidio too... man that car is nuts!

Thats why kids like me have dreams like...building a 800-900HP KA24DE to put a LS1 in its place with its 200 Shot. Man driving around in a 800-900HP KA would be crazy. I can only dream and hope i get a gooood job.

until you run into the guy running 1000+rwhp on his quad turbo drag car powered LS1.........

that would just ruin your whole year! LOL


if you haven't seen that one I can search around for you, its a real work of art.......


face it there is a LT-1 or a LS-1 out there that is faster then any SR20det or KA24det, the engines just make more power in the end.... sorry

this guy drives this firebird everyday all around town putting atleast 20 miles a day on it in city traffic. And there are not that many Sr's in japan pushing more then 700hp... one or two? There are probably 100 Camaros making more then that just in my county.......I'll give it that 80% of them if not more are drag cars but they still exist.


there are camaros with full frames and bodies that are faster then the HKS 180sx 7.104 second 1/4 mile blast....... so just chew on that homeys

the SR's can't even compete with that car and it will still get smoked by american v8's with less engineering on the chassis.........


V8 owns the dragstrip, which means its faster.......

hands down there is no other way around it. Thats why I like the V8 to race with, I don't get mad if I get beat, I would never mind losing to a 300zx TT or a Supra TT...because I know they can also pack a punch if modified right. You guys are acting like the SR and KA are the fastest motors in the world..... you need to drive other cars besides the 240sx, I know it was your first car and you love it and all, but you should experieince 100 other cars before you start trashing anything else. I'd feel confident that I've driven more different types of cars then anyone here regulariy on the 240sx forums. While 240sx's are damn nice to drive, I've driven cars that would blow them the fuck away lol.

Quad Turbo... you mean he's not using a roots for maximum power????

SRs over 900WHP you can't count on one hand. 700WHP is a DIYers horsepower now.

BTW the HKS 180 was RB powered and that made that pass way back in what 99'?... and fuck 7.10 from a 2.8L some dudes 7.0L Blown Camaro cut a 6.8...

Dude the Point he was making was that it would be fun to have a 2.4L that cloud own a good 80% of modified 5.7s out there. We're acting like the KA is the Fastest in the world? ok I'll accept that as a valid opinion when you get off the LT-1 sack. But I geuss Im still the loser here since I haven't lived by daudling up to 160 in a Impala.

:gay:

ok well why dont i just get my Hennessey Twin Turbo kit for the 430 Modena and then we can race. or get this guy from colorado's 1100 HP N/A Lambo engine and swap it in a 280Z and then we can race.

but seroiusly i do hope its clear to everyone that bigger engines will be faster. now that thats cleared up SR20DET can stop talking.

anyways the point we are making is just because its a V8 doesnt automatically mean it cant be beaten by a 4 banger. there can be faster cars. oh and the second you step off the track, the little japanese and euro cars try to race you on a road with turns, or down a hill, LOL ITS OVER. so if we can get to 1/2's of seconds close to you in a drag race, but weight 1000 lbs. less, have 4 wheel disc brakes, capable steering, and maneuverability, i think thats a good enough compromise. probably better gas mileage too.

Ever talk to the majority of F body owners? Its not a whole lot different than here.... FormulaLT1 is one of the few that I can talk to normally. We aren't acting like anything. We are just trying to enjoy our car without having a bunch of V8 freaks standing around bashing...

Yea, I though roots blowers were the only way to go..:rolleyes:

Quad turbo???? What a waste of money.

I have a question for SR20DET i dont know much about LT1s or Trans Ams or whatever. If LT1s cant have 700rwhp daily driver then whats prob the most they could put out being a daily driver? Something i would find out on the street? I dont talk about having High HP unless you can use on the street. Thats kinda like saying well i got a 3000+ HP Funny car thatll run 3.3 all day...can you run it on the street and have fun? Nope.

Diablo begegnet Viper und Supra (http://www.speedheads.de/index.php?area=links&category=283&;)

Hows that for sticking up for turboed small displacement engines? Considering that car has less than half the displacement of both of those cars. And costs less than both even with all the mods it has. So uh how do you like those wheaty thins?

or how about the fastest NHRA pro stock drag car right now is a twin turbo nsx powered civic coupe? how about that for small displacement engines? 3.3L TT v6

one how did this thread turn to this, it started with some guy asking about a s/c for his 240sx

V8's don't mean fast all the time, my uncle's civic is a turbo 4banger running 7s

my old 240sx sr20det dyno'd at like 200torque and i ate mustang gt's for breakfast and i took out a z28


this is another reason that i don't like drag racing anymore, What it all comes down to in the end isn't skill, isn't what car you started off with, or who the driver is, The biggest factor in drag racing is MONEY, THE ALL MIGHTY DOLLAR

the best driver in the world in a 2002 honda civic HX, vs some kid with 2billion dollars to invest in a car and the ablity to hold the car in a staight line with the power, who wins the rich b!tch

and i like the restrictions in racing nowadays to an extent as it puts more onto the driver being better as all the cars are similar, I prefer rally now because that takes alot of skill