estegeme

is it possiable to get 1000 hp out of a v8, with NO power adder, all motor.

i think it can be done. if they can get 300 hp outta a 3.0 v6, and 500 out of a 7.0 v8. i think this could be done.

and if what do you think it would take?

how long would it last?

or just plain not gonna happen?

FlashLCD33

iTrader: (8)

It can definatly happen.. but it's not economical.

Why spend $thousands$ when you could spend $10,000 and throw on a twin turbo and 300 shot

JustAnIlluzion

iTrader: (60)

anything can be done with the right amount of money

~JOSHUA

iTrader: (92)

It would be a complete waste of money when a forced induction set-up is really the only way to make it possible.

StoleIt

iTrader: (3)

Plenty of N/A Big Blocks and Small Blocks running around. You probably wont see many smaller than 408 CI, but they are around. I am pretty sure there are some worked C5Rs around with 900rwhp, and that is only 427 ci, there are 454 ci LsX's too.

mattkimsey

It has been done.

http://www.popularhotrodding.com/eve..._sema_13_mods/

HeapaShifter

iTrader: (2)

Scoggin Dickey sells a 632 crate engine that has 1160 hp. Not exactly a street engine though. http://www.sdpc2000.com/catalog/2788...-NHRA-IHRA.htm

staringback05

iTrader: (8)

what was the point again?

yak

iTrader: (15)

yes you can. titanium rods, and super light rotating parts, with super light valvetrain. A huge cam, real good heads, a big *** intake. the only problem is you will be spinning it to about 8500-9000 rpm. = not reliable or cost efficient.

BLKWS.6

My friend, Howard Moore (www.raymooreracing.com) has a 850fwhp Jay Dickens all aluminum 392, carb, all motor. Heard that bitch run/rev....SICK!!!!

BLKWS.6

Oh, its a dirt track motor and can run at high rpm for 30 minutes at a time, not a dyno queen. Goes in his 2150# car!!!

estegeme

no point really, jsut me and some people were talking, they say it couldnt happen. they say most twin turob v8's have problems hitting 800 hp or 700 hp. i say maybe that was what they wanted from there car. i just wanted some one else point of view on this. i see it possiable. i know its easyer with no2 or turbo or anything else. but it possiable.

StoleIt

iTrader: (3)

Get new friends

Just look at the boosted list, you can see that FI V8's really don't have problems breaking 1000rwhp.

But it will be rare to run into 1000rwhp N/A car's, just because of the extreme $$ of it. Also you would probably lose all streetability of it.

estegeme

it was just people talking, nothing thats someone is gonna go out and try to do. they just say its not possiable. i just wanted someone that knew more than me to either tell me it is, or isnt possiable. i know that its gonna be an all out car at that point.

myself, id rather have a 700hp turbo car than a 1000hp NA car. i think itd be a lil more streetable.

Carver

15.4:1 compression is not so bad... i knew a guy running 16:1...

would be tuff to get her to turn over if you get any higher... but going higher and more rpm and you can do it...

HD1911

iTrader: (13)

staringback05

iTrader: (8)

^^

terr1bleone

iTrader: (1)

start retard from MSD . i dont know about ls1s, but i see BBC's all motor with 1000hp all the time.

unit213

1,000hp N/A is commonplace in the racing world. Big cube motors (700+cid)
make around 1500-1600hp in pro stock cars.

To make big power N/A, you'll need big cubes.

300bhp/ton

It's possible, but there's more too it than that.

Number of cylinders doesn't dictate power potentail. I mean in your view which is the bigger engine:

1. 4.0 V6
2. 3.5 V8

Anyhow, specific output is where it counts. And modern DOHC engines can achieve very impressive bhp/litre specific outputs.

Old school OHV push rod engines simply are not as capable of making the same spcific output. Partly due to a thing called curtain area and also down to valve train limitations.

A few examples:

OHV stock production engines.

1. LS6 5.7 with 405bhp = 71bhp/litre
2. LS7 7.0 with 505bhp = 72bhp/litre
3. Viper 8.3 with 500bhp = 60bhp/litre
4. Hemi 6.1 with 425bhp = 69bhp/litre

In terms of spcific output none are particulary startling. It's just shear displacement that allows such hugh amounts of HP.

Even modded OHV's don't usually make great specifc output, a LS1 is capable of about 500 maybe 550 genuine SAE Net bhp. However such a setup is pretty wild, not particulary street friendly and generally requires more maintance, worse mpg and won't pass noise or emissoins standards for a produciton engine, or even strictly a street engine.

So even at 550bhp a 5.7 Ls1 is only capable of 96bhp/litre. At present there are not really any OHV engines which superseed the LS1, although the Dodge Hemi has in theory a lot of potential.

Now DOHC engines are much more efficent in terms of specific output. This for some reason is a difficult concept for many American's to grasp. I guess it's because they feel it deminishes they beloved OHV V8's. This is pretty stupid as at the end of the day it is just physics, plain and simple.

(BTW - My own personal preference is a push rod OHV engine. I currently own 5 different tpyes of OHV engine.)

The downside to DOHC technology, is it can be more expensive to manufacture (although I'm not certain by how much, I seriously doubt it is a major factor as almost EVERY new petrol engine in the world is DOHC. If it was so expensive they simply would not use it). And packaging, generally speaking a DOHC engine will require more room than a OHV. This is not always the case, as often DOHC engines are mearly a different shape, but they do have higher centre of gravities.

Sadly many assume the Ford modular engine to be the ultimate DOHC. It's NOT! While it certainly isn't a bad engine, there are far better DOHC V8's out there. The Jaguar V8 weighs the same as a LS1 and is no bigger either, plus it has the potential to outperform the Ford 4.6 unit.

Back to specific output. As you can see, even a heavily modified OHV engine has not managed 100bhp/litre. And in this state they are fair from meeting any form of emmisions or noise regulation.

A DOHC cam engine will typcially be quite happy making 100bhp/litre STOCK in full factory trim while meeting the the legal noise/emissions requirements of a new engine.

1. Honda V-Tec 2.0 with 240bhp = 120bhp/litre
2. Nissan (Nismo) 3.6 V6 with 287bhp = 82bhp/litre
3. TVR 4.0 S6 with 406bhp = 101.5bhp/litre
4. Caterham 2.3 Ford s4 with 260bhp = 130bhp/litre
5. Ferrari 4.3 V8 with 493bhp = 115bhp/litre

As you can see generallt speaking DOHC engines can make much more power per litre of displacement.

However this is usally dimissed as "ricer bs". It however isn't!

Sadly the market is lacking in any large displacement DOHC engines tuned to this level. There are some:

1. Aston Martin 6.0 V12 with 525bhp = 87.5bhp/litre
2. Feerari Enzo 6.0 V12 with 650bhp = 108bhp/litre

But generally speaking, these engines are not required to be tuned to any extreme.

Occasionally one does get thru however. The TVR Speed 12 V12 is probably most notiable.

7.7 litre V12 with 880bhp = 114bhp/litre

There where several reports from TVR engineers of some V12's actually maxing out a 1000bhp engine dyno.

So you can see its a combination of displacement and specific output.

If you can find an engine that has enough of both then 1000bhp is certainly possible.

Last years Formula 1 engines where 3.0 V10's they where capable of about 900bhp. But they didn't last long and require over 18,000rpm to achieve the number.

So yes it's possible, but probably pretty pointless. As FI can get you there so much easier.