longativity of 200+rwkw

[mullett]

No offence, but I think you've read way too many magazines. That's a stupid amount of power, and very hard to get out such a small motor. If you want to make figures, you'll need a bigger engine. An Aerial Atom with 300hp and 500kg runs 3.1seconds 0-100, so you're talking about twice that power in an old chassis with very basic suspention. The ONLY thing it will be good for is drag racing, and if that's your aim, then it doesn't matter what engine you've got. OldRollas gave you some basic stats...think about them, it's not too far off what you'll need.

Not having a go at you...RM.

its a rwd datsun 1000 wagon. wieght is listed at the rta at 660kg. so under the new legislation 660*2.5 (for forced induction)=1650cc.
this is the reason it'll be a 4agte.
cheers

[go_the_datt]

i didnt mean to start a argument. engine builders said ill be needing nos ect.
it was more a in theory discussion. if said motor can produce 350kw and lasts 5km could the same motor derrated to 200kw last 10 000km?

[oldcorollas]

Oldcorollas : Backyarder gets >300kw with ~40psi.
I think your math is a little off.

at 11000rpm. how many turbo 4A's go to that rpm?. and it is using methanol AND nitrous...

i am talking a safer 9000rpm or so
i spose if you run 40psi with meth, and than a 200-300hp shot of giggle gas, it might do it, but.....

anyway

[RONA]

lol time to weld the block to the head, where'd my pic of the hart 1.5L engine go hehe

[oldcorollas]

i didnt mean to start a argument. engine builders said ill be needing nos ect.
it was more a in theory discussion. if said motor can produce 350kw and lasts 5km could the same motor derrated to 200kw last 10 000km?

big numbers make people go funny me too

so, if you run big boost AND gas, you will need to lower compression a fair way..

so then when it is not on boost and not on gas.. apart from being a dig to drive, it will last a lot longer than at it's max rated power

such a big turbo will not make boost on the street (in normal driving)

what rpm stall are you thinking of?

hmm, or run a set of petrol injectors for street...and a coupel of sets for meth for strip... so then the higher compression you have with the alcohol will make the street + petrol more bearable

[go_the_datt]

im planning on running a 3 speed auto and the talk was 5-5.5 k.
like i said it'd be nice to beable to drive it on a cruise once or twice a year but if it cant be done then it doesnt bother me either way.

[takai]

at 11000rpm. how many turbo 4A's go to that rpm?. and it is using methanol AND nitrous...

i am talking a safer 9000rpm or so
i spose if you run 40psi with meth, and than a 200-300hp shot of giggle gas, it might do it, but.....

anyway

9,000rpm is actually reasonably safe. At least under NA conditions, FI on the other hand....

[oldcorollas]

and for posterity... it's longevity

and the recipient car is? hmm... if 1.6 turbo is near limit.... KE10????

[takai]

its a rwd datsun 1000 wagon.

Not quite a KE10, just another smelly datsun.

[Joshstix]

For the kind of money that will have to be poured into a 4A to make those power outputs reliably I wouldn't think about using it on the street. I'd never use it for anything other than racing so that you get maximum "performance" for your dollars.

I really don't think you'll see a lot of change from 25-30K in building a reliable 4A to make 350rwkw. Sure you might get away with doing it a lot cheaper if you don't mind the engine breaking every run but that doesn't seem like very good value to me.

[AE86slut]

For the kind of money that will have to be poured into a 4A to make those power outputs reliably I wouldn't think about using it on the street. I'd never use it for anything other than racing so that you get maximum "performance" for your dollars.

I really don't think you'll see a lot of change from 25-30K in building a reliable 4A to make 350rwkw. Sure you might get away with doing it a lot cheaper if you don't mind the engine breaking every run but that doesn't seem like very good value to me.

Josh, check y0 freakin' email mang.

[Schmitt]

at 11000rpm. how many turbo 4A's go to that rpm?. and it is using methanol AND nitrous...

i am talking a safer 9000rpm or so
i spose if you run 40psi with meth, and than a 200-300hp shot of giggle gas, it might do it, but.....

anyway

Actually oldcorollas he makes 540hp on 40psi using meth but no gas.

But as everyone else has said a motor like this would cost a fortune and would not be able to be driven on the street at all.

Thanks
Ben

[oldcorollas]

Actually oldcorollas he makes 540hp on 40psi using meth but no gas.

ahh, so he said....

Howdy the engine make on 30 psi 420hp at the wheels no gas
on 40 psi 540 hp at the wheels no gas
on 30 psi 490 hp at the wheels with gas
It makes power all the way to 10,000rpm and then starts dropping off at about 11,000 rpm.

so 400rwkw at between 10000 and 11000rpm

Backyarder, have you found those dyno sheets yet?

[LeeRoy]

I'm sure no one is trying to dishearten you in building a datsun drag car but i think that what you are asking is quite something. IMO you'd be better off just buying a bigger datsun or an old corolla with which you could put a larger motor in ie something like a 3s-gte. and for something like that you would only have to get a car weighing another say 200kg more. Should you go heavier than that then you could go a 1j or 2j as mentioned and not only will the motor cost you less to build, it will make more power, and also be more reliable. Another point is think about the spare change youll have compared to the 4a your thinking of building, this money could be spent actually getting such deisred power to the ground as thats gunna be half your battle.

Anyways good luck with your build
- LeeRoy

[Joshstix]

The other perspective is that if you're building an engine to make that much power it's not going to be a streetable thing so why bother having rego.

If you don't care about rego then there is no need to worry about what the RTA has to say about capacity limits.