I was just curious to see if anyone on the board is running a naturally aspirated CA or SR set-up.
Man…And i thought I asked stupid questions :roll:
how is that a stupid question noob?
do your reseach, many NA sr’s produce nice power and there are a few companies that make supercharger kits for the NA SR. so dont be a wise ass and next time keep yer yap shut.
:slap:
wtf invited this noob?
I suggest you fly your ignorant ass over to Japan, and see the what the NA society has to show for.
On topic;
On a personal note, Ive spent a lot of time thinking about building an NA S13 for Canadian show purposes.
Ive always been a fan of NA, and it would just be nice to see if there any others on this forum in my same shoes.
F*CK! That’s what I hate about son! there’s always these assholes that try to be smartasses!!! ughh
F*CK! That’s what I hate about son! there’s always these assholes that try to be smartasses!!! ughh[/quote]
hes been spoken to.
dont bring it up again.
GT
heres some toda sr20 NA hawtness
and tomei
does that toda piece have dry sump lubrication?
^^^^
Yes, yes it does.
And for more than $10Gs it better have some dude that climbs out of the velociy stacks, gives your opponent the finger, then jumps back in.
Would be cool to see one built properly. Unfortunately a lot of people have had to learn the hard way that throwing ITBs or carbs at an NA motor doesn’t make it any faster.
Until the dyno drag queens stop reaching for 1,000hp, it’ll be hard to sell people on 200whp builds that cost about as much.
Honestly though,
a real NA race powerplant > people here.
I love NA, and Japan does too.
I’ve looked into a few, but Nissan doesn’t offer much help. You could build a screaming NA SR sure, but it needs a lot of help. The CAs have no displacement. KAs make big tourque but choke themselves at 5,000.
The CA seems to plateau at 160 without really getting into it. The SR I’d have to peg even lower with its stock valvetrain.
Hardly inspiring.
Then again, most are rocking 140 flywheel horsepower and think they are steering Apollo’s chariot around.
And they hear of stuff like the FJ24 with 240hp stock and think it’s slow.
Because high compression is bad, big lift cams are “only worth 10hp”
Who cars about throttle response, or driver input, or power curves?
Can you make it go “psshhhhht”
and
rev out to 10,000?
You’d make a million.
well as far as the SR, I believe there are solid lifter conversions available. I don’t think that helps solve the quasi-rocker arm problem tho.
4 cam lobes for 8 valves… wtf were they thinking
uhmmm im no specialist but what about a rb???anyone???not worth it???to even mention it,as far as i have leanred that is one hell of a strong motor,ive seen it take a beating like no other and still not give in…im sure no one would make a rb…na but still its one hell of a strong motor,feel free to correct me if i am wrong.
AWD gtir SR has solid lifters… so i assume those could be used as the conversion parts.
Moved to Technical for obvious reasons.
oh man…
and i was ABOUT to say how nice it would be to build a high-comp NA SR w/ ITBs!!!
Why on earth would anyone swap in a lower displacement motor and still run NA?? It’s almost the exact same amount of work to have a turbo CA or SR. Look at how heavy our cars are, they’re FAR from a civic hatch.
Honestly +Adam+ is right.
to the guy that mentiond na RB’s there are actually quite a few people who have built na’s , mayeb not here but it’s a popular idea. Autech Made a a factory tuner NA RB26 R32…
Here’s a basic set-up one of the local shops did on a 93 GTS. They pulled the RB20DET out and swapped in an RB25DET. This car sounds so bad-ass with the internals its running.
^^^
RB25DE I think you mean.
I was actually wondering about that.
From back in the day, the Nissan L series straight sixes (in race trim) were turning out some serious numbers. You can’t beat the torque of a straight 6 … well, unless you have a straight 8 or V12.
You just can’t beat an NA car with a turbo car.
Turbo cars … they make big power, but it can be very hard to control, especially in a race situation in a light car. They always have a restriction (no matter how efficient your turbo is, it is always in the way of your exhaust)
Granted no S13 or S14 could ever be considered “light”
But I’ve seen some crazy NA 10,000rpm VQ35DEs in 350Zs. So what if it only makes 300-ish hp.
Stuff that in an S13 and murder everything around.
It’s a bit of a hard concept to grasp, which is why people always seem to overlook NA engines.
With NA, the power delivery is never violent, always linear. You don’t need nearly as much “bulletproofing”.
See, forged goodies are strong, but they suck at the same time. Because of expansion, you have to run forged pistons loose in the bores. As well they are very heavy. For every horsepower you generate, you’re losing a certain percentage of that power just to move the engine parts.
With NA you can take advantage of lightwieght internals, like hypereutectic pistons.
I’ve seen a 440 (7.2L displacement if you need the metric) built with the rotating weight lower than a stock 340 (5.6L). The lighter your components, the less power is lost through parasitic drag. In the end, the much larger engine wound up more freely than the rev happy small block.
Think KA that winds up like a 4aGze or some random Vtec honda, but still has displacement.
Heavy parts take more power to turn.
Then with all these light weight parts, the motor is much better balanced. Especially if you have it professionally balanced as well. This will keep the motor from shaking itself to pieces at high RPMs. Which translates into reliability and less money spent on parts.
Ridiculous compression, cams with circular duration …
NA machines will perform like nothing else.
They may never generate the same peak power numbers as turbo monsters, but that doesn’t mean they’re slow.