Why A V8?
#26
#27
C5's are amazingly good handling cars once you get in and change the settings
and put in some better suspension compenents.
apparently you're not understanding the point I'm making about advantages of said M3
with a lot of work ....see later post you didn't bother to read where i mention that
I'm an idiot adult......I suspect jimlab actually be the original poster of this thread
#28
ok so my question for JimLab is about the 454....and how it fits because I am apparently even more woefully ignorant on the subject than i thought
Is the 454 you were talking about the old GM bug block from the 70 muscle cars or some sort of stroker version of an LS series motor?
I have a good friend with a LS-1 in his FC and it does fit in there very nicely but I just have a hard time envisioning something even just a little bit longer fitting in the engine bay as nicely without moving the rad infront of the first cross member or cutting some metal somwhere.
Is the 454 you were talking about the old GM bug block from the 70 muscle cars or some sort of stroker version of an LS series motor?
I have a good friend with a LS-1 in his FC and it does fit in there very nicely but I just have a hard time envisioning something even just a little bit longer fitting in the engine bay as nicely without moving the rad infront of the first cross member or cutting some metal somwhere.
#30
I just have to make 2 quick points in reference to both type motors, if your worried about gas mileage DONT get a sports car!!!!! Another is once you start to mod your engine they both will become more unreliable.
I've been working on pistons engines for 8yrs now and now I'm into Rotary's. I love them regardless of what others may say, I frankly dont care, it's my car, my money. If you still want to prove something its done on the STRIP ect. Not on a stupid pointless thread like this one.
I've been working on pistons engines for 8yrs now and now I'm into Rotary's. I love them regardless of what others may say, I frankly dont care, it's my car, my money. If you still want to prove something its done on the STRIP ect. Not on a stupid pointless thread like this one.
#31
i'm pretty sure the reason we all have rx7s is that we want something thats completly different, camaros and mustangs with v8s out there are a dime a dozen, most of us here just want something else to drive, which is not to say v8s suck or anything, they're beastly, everybody knows that, but the rotary calls to us in a different way, oh well
#34
True but rotary's dont completey shoot broken parts out of the block like pistons (aluminum blocks) do when something breaks. Ask yourself when was the last time you were able to rebuild that kind of damage yourself without having to send the piston block out to be professionaly repaired? With the rotary, some used housings, rotors, and new seals will have you back on the road with basic DIY tools at home.
Last edited by t-von; 10-12-07 at 03:55 PM.
#35
Just the same with any rotary. Lets compare rebuild cost and ease of rebuilding when something like this happens. There's no comparison that the rotary is cheaper.
Last edited by t-von; 10-12-07 at 03:57 PM.
#37
NA vs NA they are not GAS GUZZLERS. On the highway, you can easily take advantage of the v8's low end torque to keep your rpm's in a managable fuel economy range with it's super tall 6th gear. In comparison a 4.0L V8 in a BMW 540i sport can barely manage 20 hwy mpg cause of the more rev happy gear ratios. It's all about the gearing.
Oh yea, my NA 91 vert managed nearly 28 mpg recently on the highway with stock gearing and A/C. With a 16gallon capacity tank, I was able to travel 400 miles ( 100 of which was city driving ). I can only imagine my range if I was able to do all the driving on the highway. So much for your mileage claims.
Last edited by t-von; 10-12-07 at 04:20 PM.
#38
Ask yourself when was the last time you were able to rebuild that kind of damage yourself without having to send the piston block out to be professionaly repaired?
No matter what goes wrong inside a rotary, you have to pull the engine, pull off all the supporting equipment and accessories, wiring harness, fuel rails, etc. You can repair anything but catastrophic damage on a piston engine without having to remove the block from the car.
With the rotary, some used housings, rotors, and new seals will have you back on the road with basic DIY tools at home.
Lets compare rebuild cost and ease of rebuilding
#39
They are, which is why governing bodies in racing rate them at higher than their "factory" displacement.
Rotary engine displacements were purposely underrated (and it was allowed, because the design differs from a conventional 4-stroke engine) to avoid higher taxation on 2.0+ liter engines in Japan.
So now you want to create a new formula for calculating output per liter that takes into account the number of combustion events?
The majority of your posts are, I've found.
Last edited by Narfle; 10-12-07 at 09:51 PM.
#40
How much more would you have to pay for a TBI setup and peripherals? I'd venture it would double the cost of your build. That combined with the necessary modifications to horn it in any 7 and youre budget is now representative of a decent single turbo 13b build making "the same" power.
#41
I know what you were "referencing".
Wrong. The rotary is a 4-cycle engine, just like a piston engine. Intake, compression, combustion, exhaust.
No conspiracy, historical fact. Look it up.
Yes. Horsepower is a measure of work performed over time, regardless of the number of combustion events in that period of time. If it weren't, you couldn't compare a 4-cylinder engine to a V8 to a V12 without a "conversion factor".
Leave it to you to try to invent some new way of making the rotary superior instead of just admitting that it's a novel but inefficient means of producing power.
The reason their displacement is doubled is due to the fact that they are a 1 cycle engine competing against 4 cycle engines; which is exactly what I was pointing out, sir.
How did a conspiracy theory find its way into your objective and unclouded logic?
It was intended to conject (my new favourite word[note classy spelling]) that any increase in power production for any given combustion event would be multiplied by 3/2 for a 2 rotor package, or 9/4 for a 3 rotor engine when compared to a 4 stroke v8. Can you deny that?
Leave it to you to try to invent some new way of making the rotary superior instead of just admitting that it's a novel but inefficient means of producing power.
#42
Leave it to you to put stone-age, iron-block, pushrod v8's on a pedestal; cross your arms, and hold your breath like a small child when confronted with new ideas.
instead of just admitting that it's a novel but inefficient means of producing power.
I enjoy our foodfights, but you have your loyalties and I have mine. Hence the spaghetti I threw.
#43
Leave it to you to put [modern], [aluminum block], pushrod v8's on a pedestal; cross your arms, and hold your breath like a small child when confronted with new ideas.
I enjoy our foodfights, but you have your loyalties and I have mine. Hence the spaghetti I threw.
#46
Simple flooded engines from excessive rain. Weve had numerious engines through our dealer have piston rods shoot out the aluminum blocks of engines from flooding. Rotary's, the water just passes though.
That depends on if it's blown or not.
Very true! Personaly I find it much easier to work on engines with them out of the car anyways. Some of us hate bending over the hood to work on stuff.
Surely you can find tools more difficult for someone to find Jim? Hoist can be borrowed. Breaker bar = tubular steel. 2 1/8" socket bought at sears. My whole point about the ease of rebuilding was to prove that eveything could be done at home without having to use a machine shop like you would for a piston. For this reason and the interchangabilty of used parts from a wide range of model years makes rotary's far cheaper to rebuild.
Fine lets compare the longevity of a boosted piston vs a rotary. And NA vs NA in a sports cars. Personally I would feel more comfortable beatig on a rotary with over 100k on the engine than American V8. People blowing engines prematurely due to ignorance truely doesn't show an engines true durabilty.
When was the last time you were able to repair a rotary engine without pulling the engine out of the car and replacing at least one rotor and housing, and potentially a turbo?
No matter what goes wrong inside a rotary, you have to pull the engine, pull off all the supporting equipment and accessories, wiring harness, fuel rails, etc. You can repair anything but catastrophic damage on a piston engine without having to remove the block from the car.
Yeah, some basic DIY tools like an engine hoist, a 6-foot breaker bar to get the eccentric shaft nut off, and...
Let's compare frequency of rebuilding.
Last edited by t-von; 10-13-07 at 01:10 PM.
#47
Dear RX7club, I am amazed that your emotional attachment to those beer-keg shaped rotary explosive devices still remains to the year 2007! You clearly lack the abilities to see a troll with the name "ProBlasphemer" with ONE POST IN HIS POST COUNT for what he is, and continue to argue with Jimlab, who even I admit is right!
You also apparently wouldn't know the math he is talking about if it crawled up your *** and brought you to orgasm through prostate stimulation.
You also apparently wouldn't know the math he is talking about if it crawled up your *** and brought you to orgasm through prostate stimulation.
#48
Rotary's, the water just passes though.
Surely you can find tools more difficult for someone to find Jim?
In fact, find me a piston engine car forum where one of the first things they have you learn are all the "reliability mods" required to even be able to expect average engine life.
My whole point about the ease of rebuilding was to prove that eveything could be done at home without having to use a machine shop like you would for a piston.
For this reason and the interchangabilty of used parts from a wide range of model years makes rotary's far cheaper to rebuild.
Personally I would feel more comfortable beatig on a rotary with over 100k on the engine than American V8.
#49
You clearly lack the abilities to see a troll with the name "ProBlasphemer" with ONE POST IN HIS POST COUNT for what he is
and continue to argue with Jimlab, who even I admit is right!
You also apparently wouldn't know the math he is talking about if it crawled up your *** and brought you to orgasm through prostate stimulation.
Please go drink bleach,
Barban
#50
It takes 3 rotations of the eccentric shaft to fire all 6 chambers of a 2-rotor engine. It takes 2 rotations of the crankshaft to fire all 8 chambers in a V8.
13B = 2 combustion events per rotation
V8 = 4 combustion events per rotation
There's your math.