330hp N/A Street Engine?

[michaelmount123]

Check out this thread on another forum...
330hp NA street engine - Rennlist Discussion Forums

[Dan Himan]

Now i know what i want for Christmas.

[smokin_944]

I'm guessing that for the cost of that build you could purchase a full house Corvette engine (500 HP). It's a thing of beauty but what did it cost to build?

[HondaDustR]

Any chance someone could post the pics here. I'm not a member of the "other place".

[idontknow]

Very very nice. Thanks for sharing

[ernie9944]

Originally Posted by HondaDustR

Any chance someone could post the pics here. I'm not a member of the "other place".

Not posting much lately ,started 3 weeks ago on a very large (Wind Mill project) with a company out of Tennesse ,darn cold up here & the wind is not always in our favor ,those are very heavy lift witch as to go over 300 ft up, so no room for error when rigging them.Coming back to topic here are your pics HD

[Dan Himan]

Its so beautiful.

[CKniht90]

so this is what love feels like

[nzporsche944s2]

Who said money can't buy love?

[sasquatch]

So if he can get 330 out of that, I should be able to get 200 out of my 87 8 valve.


(mind going into overdrive)

[flash968]

somebody told me he wants $20k for that engine

[Jrboulder]

Uh, Santa, I want that for Christmas!

[flash968]

while it's an impressive endeavor, i wonder where one would use it?

you couldn't use it in a race car, as it would take you out of any class in which the car would be competitive, and put you into a class where that would be nowhere near enough power

you couldn't use it in a street car, as in most states it would not pass the emissions testing, and it would be pretty temperamental in any extreme temperatures anyway (the nature of the beast when you go that far)

for about half the price you could rebuild the engine, do a centrifugal supercharger, and end up with the same amount of power, and it would be a whole lot more reliable

again, quite impressive, and credit goes to the guy for sure, but i fear that will be a one-off that is more of a vanity project than anything else - i've done a few of those too, lol - i'm doing one now, and for likely the same reasons (i just wanted to see if i could) - they are fun, but not really practical

[sasquatch]

Flash, I agree with you. But he might have places in local racing that it would be fun. Or for an occasional driven street car.

I have been trying to decide what to do with my 87 na for years now. The car is truly immaculate and has won concours events. Tons of $$ into the suspension, wheels, tires. Already has an S2 transmission to handle more power.

Chebby engine swap (LS of some sort)... While the power and simplicity is nice, I just do not want to put Chebby power in my Porsche. I am a bit of a purist that way. No problems with others if they want to do it, but if I want a v8 Chebby, I will buy a Corvette or something else.

So, that leaves me with Porsche power. I know a 968 motor can drop in pretty easily, same with an S2 motor or a Turbo.

Something that has always kept me awake at nights is to know what the potential of the stock motor is if it could be brought into this decade in technology. A modern, semi-high performance motor built in this decade with the same displacement would probably be around 250 hp, reliably, all day long.

Redesigning the intake and exhaust, that is easy. Use a mega squirt or other basis for updated ignition and fueling control. Head....now that is a tough one. Either take the 8v head to as far as it can go with flowing, larger valves and combustion chamber design, or maybe swap for a 16v head. Have a set of pistons made by JE that are much lighter, and up the compression. Lighten the rotating mass in the lower end. Build a better cam (Web Cam?), polish all the internals and use the newest coating technologies.... What would be the result?

I dont know the answer to that. The quest of it is really intriguing to me. I have a machine shop and have access to better engine shops. I am an accomplished mechanic and engineer. But if I end up still dropping $10k into a motor that only pulls 200hp, I have not gained much.

In the end, I will probably just wait until I stumble on a worn out turbo car for sale, rob all the parts from it I need, build a killer turbo motor and do that swap.

[flash968]

i'm absolutely certain that it would be fun - no question about it - that's a LOT of power, and normally aspirated it would be a blast, and free from all the annoying issues of a turbo

obviously he followed the tried and true method of starting with more cubes - bumping up to 3.2 adds 16hp all by itself - i imagine he raised the rev limit to about 8k or better - bump the compression up to about 12:1 and bingo, you're already up to 270 - done right, the ITBs will add another 30 or so - so, it's not hard to imagine getting to the numbers, with careful building and tweaking, but you really have to do everything to get there, and it isn't cheap, and not likely long lasting - it's really quite an accomplishment though, and very commendable

but, as you say, reliability is a big factor for almost everybody - if you own a shop, and can rebuild that thing every season or better, then great - been there, done that - it was fine for me, but it's just not practical for anybody else

but WOW, that's really something, and there is no taking away from that

no chance i'd want that in a street car though - the first cold morning or hot afternoon, and i'd be so frustrated i'd stick a sign in the car and walk away - i'm just too old to deal with that kind of thing anymore - when i was a kid, i'd hop up anything i had, and not worry about the fickle behavior - not anymore - it's one thing for a toy, but not for something i wanted to drive on the street

as for local racing, i'm talking about racing, and not DE stuff - you could go out for a DE with just about anything, but i don't know of any sanctioning body where that engine would be allowed in a division where you would be competitive - it's too modified and would stick you way up in class, against cars with a lot more power to weight - if there is a class, i'd love to know what it is and where, because i'm in the same boat

i am in no way saying anything negative about this build, and i can't stress enough how impressive it is to get that kind of power out of that engine - i just wonder what the intended use is

maybe he'll chime in and let us know

[333pg333]

I have my doubts on 330hp. A couple points increase in c/r and capacity doesn't get 100hp+ IMHO

[techartisan]

Originally Posted by 333pg333

I have my doubts on 330hp. A couple points increase in c/r and capacity doesn't get 100hp+ IMHO

Doubt what you will...his dyno sheet speaks for itself:

[flash968]

it can be done, but there is a lot involved - every port has to be right - the combustion chambers have to be reworked - the cams will be pretty big - solid lifters to accommodate the higher revs - i am sure the list is long

330 is way up there, and likely could only be done on an engine dyno, and not in a car where you would have to add the losses due to things like an alternator and such, but it is reachable

i would be more interested to see what it does at the wheels, and particularly the torque curve - peak hp numbers are for kids and braggarts in parking lots - torque is what makes a car move, and a broad curve is what makes it drive fast

[Joel8005]

Flash, Why do you not post these same question and concerns on 968Forums regarding 300HP NA motor thread? It is in poor taste to come over here and work this thread over and not do the same on the site you own. Oh, it might be because the guy developing that motor is your partner on that website. Maybe just a little bias?

[flash968]

i have no bias at all - i also do not have anything negative to say about this engine - in fact, if you read carefully, i did nothing but praise the work - i have not in any way criticized it or the builder- in fact, if you knew the history of both engines, you would find that to be ridiculous in concept

my entire issue was merely the curiosity as to the intended use of this engine

as for the other engine, i know the intended use for that other motor, and it is not for racing or street, so i have no issues or questions about it - would i do it? no - do i think there is a better way to get that kind of power? sure - do i think that somebody shouldn't do it? heck no - it's their money and they can do whatever they want to - as i said, i've done some vanity projects too - none of them made any real sense either - heck - the fact that i'm messing with one of these cars at all is completely illogical - i could go out and grab a 360 and be way better off in all respects - but that isn't the point of my project, rs barn's project, or the engine in this thread

so, before you go flaming me, maybe you should stop to think about what i have said, and read more carefully and without your own bias