FD3SR1

any video????? please!

FD3SR1

top end car with 4.33 gears? weird. i would think you would want th 4.10s at least if not the 3.90s.

LT1RX7

Except most cars dont have that increase at 5000rpm.

Also you need to stop living in the past where V8's only spun to 6000rpm. A stock LS1 with only springs and a cam can easily spin to 7200rpm and my motor I just built "redlines" at over 8200rpm. In fact Judson Massengil from the School of Automotive Machinists is spinning his LS1 to over 9200rpm...... Humm my motor redlines right around where a rotarty redlines, wonder what rotary fans are gonna start coming up with the swing stuff in their favor now............?

That makes your 4500rpm difference realistically like 2700rpm for the cam only motor, 3700rpm for my motor and 4700 rpm for Judson motor. I would be there curves are MUCH better on the V8's, cant replace displacement.

Finally I would have to say the touching the gas with 700ft/lbs is much better for driving on the street in the rain than nothing until 5000rpm. At least the V8 isnt waiting and holding on hoping when he hits boost at 5000rpm that the tires dont break free and send him into the guard rail at 70mph. Have you ever driven a 2 stroke dirt bike??

dubulup

we could careless what your motor does in this thread. Let the man have his 15 minutes.

KNONFS

iTrader: (14)

I guess those V8 have a balance assembly, Crispeed doesn't mention that this 13B has been balanced....

dubulup

it's pretty smart to balance an engine when aiming for this hp output...and it's not all that expensive for rotary engines...2 rotors, 2 counter weights.

KNONFS

iTrader: (14)

So you are saying that the engine has been balanced?

13btnos

iTrader: (1)

Put up or shut up! Why don't you guys with V8 powered RX7's run this guy. Your soo confindent in your motors put your money where your mouth is. So many times a rotary powered car puts some good numbers down and the V8 guys are quick to down and frown on it. Oh and makes me laugh how many of you state "Well if you put a turbo on a V8 you can make XXXX amount of horsepower." Simply put you haven't done it so don't comment on it. I like V8's and rotary's each one has it's place. Doesn't matter what your car is powered with all that matters is what it runs. The thing that I love about a rotary is it's size just can't get over the power these little engines can put out. And yes I know all about V8's my brother inlaw is a die hard Mopar guy and has a 1970 440 4speed 'Cuda in my garage but yet he still respects what a rotary can do in the right car, and I'm not talking about rx7's. I personnally don't like rx7's but I love rotary engine's. Give credit where credit is due. Good job on the numbers Crispeed!

crispeed

He meant that the ecu I'm using is capable of direct fire!
It was the first E-11 I did so I kept it simple in the ignition setup.

turboR1

Funny thing is the V8 pwd rx7's would never run against a car like this.. They would complain saying wait until I get more mods or a turbo. If you cant replace displacement why such fear over the little 1.3 liter..

adictd2b00st

i don't see why v8 rx7 guys would even try to start stuff in this thread anyways. they dont' own a rotary anymore, so why should they care

VERY impressive numbers. keep up the good work !

ghostrx7

Heres the deal, a moderately modded v8 swap is decently reliable, but once you get around the 450-600whp, those motors have just as many problems as rotaries, Ive seen plenty of bolt on lt1s and ls1s eat oil like noones business and have other problems associated, LT1s ignition system etc etc, the list goes on. No v8 is as reliable as its owner makes it seem. Just like the supra guys replacing motors because they are making over 500whp, they just dont run to the forums and post they lost another motor, trust me, every motor has their problems.
I am all for different motor swaps, and experimenting with differing set ups, but dont come on here preaching that its not reliable, since a 600whp v8 will have its fair share of problems. If you think I have no idea what im talking about you can visit my site where 3-4 of my friends have v8 powered cars running 9s-10s. All around 500-800whp. My partner has a 1,000 hp SBC going in his GTO, so I have a small insight as to the true nature of a built v8.

adictd2b00st

well put

13btnos

iTrader: (1)

Watch how you throw that 1.3liter number around these V8 guys they get all worked up about that figure. Your gonna get "Oh it's really a 2.6liter" or "In all actuality it's a 3.9liter so it's really not that impressive." Even if it was 3.9liters, which is it's total volume for all 6 faces to cycle, it's still smaller than your 5.7 say liters. All in all impressive for such a small engine.

ghostrx7

**** that3.9L bs, # of rotations bla bla, my motor is the only motor of any of my friends that I can pick up and carry around my garage floor, lol. 1.3L sounds about right to me.

13btnos

iTrader: (1)

LOL! Ha I thought I was the only idiot that carried his engines around the garage. I need to stop doing that and put my cherry picker to use. I'm getting to old to be carrying motors around. I'm gonna hurt myself one of these times.

MARTIN

The reason it is 2.6 is because it does 2 compression cycles in the same degrees as piston engine does one.... I suck at explaining, but either way the engine is only 12"long and if I was a rocker, I could prolly fit it into a pocket of one of those baggy jeans...

1.3, or 2.6 the engine is extremely remarkable considering you can get to 500hp in stock form. No cams, no porting, no mods what so ever with an engine this size.

I have laid out a couple(2 for those of you that mix the term "couple") of 03 cobras, one at 455 and another at 520.. Im still stock motor, havent seen a dyno with this setup and its on a heavy *** vert... So all you v8 nut hangers can keep on talking ****. When you or anyone you know is in Miami or maybe you are, you can hit me up on pm and Ill be happy to make an example... No money, just for fun. You can take a look at my setup and if you want I could give you a couple pulls in it... But this **** has got to stop... Rotary motor is a certain engine and v8 is on another class. But we can dominate yall with no prob...

I am not talking out of my ***, since I know a few street driven v8's that hit 8 secs with no prob. And I know that a street 2 rotor needs an amazing motor to be that fast. But its not impossible. Im just tired of all this bullshit that goes on with 2rotors and v8's... its just rediculous. I saw a vid of a v8 rx7 get slapped up by a car that came with an lt1 and would most likely get torn apart by a mildly modded TII... So wtf is the point??

ghostrx7

LOL- Im just strong for my size, its all those days of doing roofing, lifting 70-100lb bundles of shingles, by the pallet fuls, good endurance work out. I gained 15 lbs working there all muscle.
Was also, insane money, was making 1500-2k a week supervising. Definately helps when your motor needs moved 15 ft across the garage and no cherry picker!!...had to give it back to my friend, lol.

MARTIN

I think anyone can move the fukin motor around.. I doubt it even gets to 150 bareblock...

patman

iTrader: (3)

i carry mine around until i put the flywheel on...that extra 30# is ****** heavy.

by the way, great job crispeed, and **** all those v8 people, theyre just jealous.

nopistons94

just imagine if the blocks were alum, we could bench press a motor on each side of the bar then

RICE RACING

I will give you all a little tip, this is a SINGLE TURBO FORUM FOR ROTARY ENGINES, stay on topic and dont post any more BS about what you think is better or why a 12.7lt Cummin Diesle with twin stage turbo's would be better or more reliable than a 2 rotor !

Just be happy for the bloke with what he has and how he has kept the faith by sticking to a mazda rotary rather than selling out and putting in a another easy option engine.

You have your opinions, GREAT! save them for a discussion where its relevant, BTW (for those with difficulty appreciating what others have achieved) that is NOT IN THIS THREAD ! Thank you

KNONFS

iTrader: (14)

So if you are counting twice as much full cycles on it, should you apply the same rules to 4 cycles engines?

KNONFS

iTrader: (14)

This is a 9 sec car right here people, Sporty's car did 9 sec passes on a FD with less hp

RICE RACING

All of this has been covered extensively by myself and others (you can search Ausrotary.com) to get the real answer on rotary engine capacity as applicable to other engine types or as an absolute !.

Compared to a 4 cycle piston engine the 13B = a 2.616lt, end of story