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Twincharging.
(131 posts, started )
Quote from sam93 :I didn't say you can just cut things off then weld new parts on. I was actually asking how you would convert a car from FWD to RWD.

It is almost impossible to convert a unitary construction vehicle to rear wheel drive. It is much simpler to build an entirely new car and then cover it with the original bodyshell (or a representation of). There have been some attempts (and in some cases commercially available kits) that use the standard shell as a structural component (reinforced of course) with the original engine mid-transverse mounted.
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(Shotglass) DELETED by Shotglass
Quote from Shotglass :are you sure you typed that right? id guesstimate the whole thing to be well into the fives by the time the car has a new suspension ie after your step one

I think Tristan meant four figures for the number of list items
stop faking quotes will ya
Shotglass was pwned
Twin charging is costly, heavy and the results arent great.
Quote from sam93 :So say I got a Z20LET (200bhp stock) and done either one of these two to it.

1. Smaller turbo and a bigger turbo. What would be the final amount of bhp achieved?

2. Supercharger and a turbo. Again, what would be the final amount of bhp achieved?

lol i see these quotes all the time on car forums and the awenser is allways the same

the HP limit comes down to how much you want to spend that simple

im sure with enough money you could get a 1.6 4cly with 2000 HP but would only last a few runs and would cost in excess of 200,000$
1.6l 4 pot would not churn out 2000hp. Never ever ever ever ever, quad turbos + nos + supercharge = Still not 2000hp
Quote from S14 DRIFT :1.6l 4 pot would not churn out 2000hp. Never ever ever ever ever, quad turbos + nos + supercharge = Still not 2000hp

If it was able to rev to 40,000RPM then it may be able to spool a turbocharger that is large enough to provide like 80psi of boost. I suspect the stroke would have to be incredibly small. I think it would cost at least 50 million US dollars to develop.
20 years ago 1.5 litre turbos were putting out 1200hp for a short amount of time. Since then we've had 3.0 V10s giving over 900hp. I don't see why you couldn't get 2000hp out of a 1.6l if you had the money, the time, and the inclination.
Well, I guess anything is possible depending on how much money you have. As W4H said it'd have to rev to stupidly high amounts of revs, and since we need as much power from a 1600cc engine as possible, I'd toy around with the idea of a 2stroke. You can supercharge/turbocharge them, somewhere I recall reading some large ships have Turbocharged 2stroke engines, and some "detroit diesels" had them as well.

Then again, what do I know.

Reason I suggest that is that two strokes (as we know) produce alot of power for their capacity. Adding forced induction to one, although technically possible, is quite difficult and obviously, because of the way most 2 stroke engines work with exhaust gases, especially in turbocharged format, would be quite..how can you say.. a large pain what you sit on. Besides, there's no worrying about valves, pistons going through said valves, etc etc, and it's much more mechanically simple.

Running on some sort of nitrofuel, I guess after millions (into tens and hundreds of £/$), it could be possible, but it'd probbably blow up within a few seconds of full power use.
What rpms were the 1200hp 1.5l F1 qualifying engines running at?

Bearing in mind you said it was impossible, and now you say it's possible, I suggest you don't know what you're talking about. Knowing how to program diagnostic software does not mean you have in intimate understanding of the inner goings-on of an engine.
Well, I changed my viewpoint?

Again, I won't make myself out to sound like someone who knows about engines, but I have an understanding about engine internals that exceeds the average, although not anything special, I was told/shown how to rebuild engines, mainly two strokes, as said above, they are much more mechanically simple, valve adjustments, camchains on four strokes etc.

Most of which I can't remember now without doing it again, mind

</off topic mutter>

Maybe it can be done, honestly, I don't think it can. I was just following a trail of thought as to the possibilty.

Or, rather, let me rephrase.

Possible? Yes.
Doable/going to happen? No.

Quote from tristancliffe :What rpms were the 1200hp 1.5l F1 qualifying engines running at?

Bearing in mind you said it was impossible, and now you say it's possible, I suggest you don't know what you're talking about. Knowing how to program diagnostic software does not mean you have in intimate understanding of the inner goings-on of an engine.

Well he did say that 2000bhp out of a 1.6l 4 cylinder was not possible. What were the 1200bhp turbo F1 engines V8? V10? V12?
A quick wiki say's they were V6 turbo's still awesome
They were either inline-4s or V6s I believe.
the BMW's turbo engine which are said to made 1500hp in qualifying trims is actually an inline 4. renault and ferrari had V6s and Alfa Romeo had a V8.
Quote from JJ72 :the BMW's turbo engine which are said to made 1500hp in qualifying trims is actually an inline 4. renault and ferrari had V6s and Alfa Romeo had a V8.

The M10 block went on to Formula 1, winning the 1983 championship for Nelson Piquet and Brabham — something which very few 20 year old road car engine designs accomplish. The same applies for the rise in power: twenty-fold from 75 hp to about 1500 hp

Just wow.
Quote from S14 DRIFT :1.6l 4 pot would not churn out 2000hp. Never ever ever ever ever, quad turbos + nos + supercharge = Still not 2000hp

Why not? All you've got to do is put enough of your chosen fuel and air in and igniting it as quickly as necessary. There is no limit to how powerful a particular capacity or layout of engine can be.

Quote from andybarsblade :Well he did say that 2000bhp out of a 1.6l 4 cylinder was not possible. What were the 1200bhp turbo F1 engines V8? V10? V12?

The most powerful ones were straight 4 BMW engines derived from a production block design (and if you believe the rumours they were used production blocks).
Quote from ajp71 :
The most powerful ones were straight 4 BMW engines derived from a production block design (and if you believe the rumours they were used production blocks).

i might be wrong but im sure i was told that they sorced high mileage motors from taxis
Quote from S14 DRIFT :Well, I changed my viewpoint?

Again, I won't make myself out to sound like someone who knows about engines, but I have an understanding about engine internals that exceeds the average, although not anything special, I was told/shown how to rebuild engines, mainly two strokes, as said above, they are much more mechanically simple, valve adjustments, camchains on four strokes etc.

Most of which I can't remember now without doing it again, mind

</off topic mutter>

Maybe it can be done, honestly, I don't think it can. I was just following a trail of thought as to the possibilty.

Or, rather, let me rephrase.

Possible? Yes.
Doable/going to happen? No.


To thee I say "Nerrrrrrrrrrrrrrrrrrrrrr"
Agreed, there is no limit, technically speaking, at least. Practically speaking, there are all sorts of issues, getting enough fuel in, burning it in time, not to mention the construction of the thing would have to be something crazy. Definatly something would need some very radical thinking indeed.

Taken from a Yahoo! answer thing:

Quote :Highest specific output of a piston engine goes to Renault's 1.5 litre Turbo used in the 1986 F1 season. In qualifying trim, power could be boosted all the way to 1,500bhp, giving amagical 1,000bhp/litre, although in the races, they ran at around 800bhp (a "mere" 533bhp/litre).

Qualifying trim means that, presumably, it could only be ran at full power for short periods of time before exploding(?), or failing in a very large fireball

The forces are too much, it would just spontaneously combust if much more was to be used to propel any sort of car.

I guess, for it just to work once, be bench tested, then never used again and either locked away as a museum piece (or collected off the floor with a broom from where it left bits of the crankcase all over the floor.. ), using a layout simular to Renaults 1986 GP engine, but with modern technology and modern materials, perhaps, just, it could be possible.

Idk, it's a good and interesting proposition, actually. Maybe we can get that dude who riced up that Eclipse to sort it, with his grinding on the ports for "better airflow" or something.
Quote from JJ72 :the BMW's turbo engine which are said to made 1500hp in qualifying trims is actually an inline 4.

from 1.5l... which is just plain silly
Quote from tristancliffe :What rpms were the 1200hp 1.5l F1 qualifying engines running at?

According to what I just read, 10500RPM. So, maybe I was exaggerating how high an engine would have to rev to flow enough air to spool a turbocharger big enough or at a high enough RPM to produce enough boost for the engine to make 2000HP. But it still would cost more money then any individual would probably be able to spend.
Quote from S14 DRIFT :
Qualifying trim means that, presumably, it could only be ran at full power for short periods of time before exploding(?), or failing in a very large fireball

In qualifying trim it will last several laps, so a lot longer sustained heat and stress than a drag racing engine. Producing huge outputs from engines for relatively short periods of time is possible but not terribly desirable due to the enormous costs associated with it and relatively small list of applications for such engines. Turbo and supercharging are inefficient methods of forced induction, if you want maximum output and no lag at all then using constant pressure forced induction is the way to go. There have been very few serious attempts at this, Nick Mann has a hillclimb special powered by a 1700 BDA with a Wessex (helicopter) providing forced induction, the power output is somewhere over 400bhp and with no lag and four wheel drive this car is incredible to watch off the line, I've never seen (or heard) anything like it. Now in the nicest possible way this engine was designed on a beer mat and built in a shed, probably without any real science being applied at any point with a very good, but old engine that wasn't intended for constant pressure forced induction and a 'turbo' which wasn't intended for this purpose. With proper investment and ground up design there must be huge potential in a system like this.

Twincharging.
(131 posts, started )
FGED GREDG RDFGDR GSFDG