Other Engine Conversions - non V-8 Discussion of non-rotary engines, exc V-8's, in a car originally powered by a Rotary Engine.

13b-t vs LS1 vs SR20 swap!?

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Old 02-10-08, 11:28 PM
  #51  
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Originally Posted by Unseen24-7
I won't deny that they are quick. I have looked under the hood of a few C5, C6 and Z06 vetts, and the engines just dont have that wow factor when you look at them...maybe it's those lame plastic engine covers.
Yes, and an engine the size of a salt shaker definatly puts the W's in WOW. Popping the hood and finding a rotary does nothing for me, or most. Now popping the hood of a MAZDA and seeing the huge engine is pretty bad-***. Kind of like a 5'0 skinny little white kid pulling out a 13" *****---she never woulda saw that one coming.
Old 02-11-08, 12:06 AM
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Originally Posted by Snyper
Yes, and an engine the size of a salt shaker definatly puts the W's in WOW. Popping the hood and finding a rotary does nothing for me, or most. Now popping the hood of a MAZDA and seeing the huge engine is pretty bad-***. Kind of like a 5'0 skinny little white kid pulling out a 13" *****---she never woulda saw that one coming.
Old 02-11-08, 12:33 AM
  #53  
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Hi, I'm here to hijack your thread.

Ever consider the cost? Because I have...and looking back, I think I would have rather waited, saved money, and done a ls1 swap.

Go to the single turbo forum and see how much $ it costs to make 400hp out of a 13bt...reliably. The ls1 swap isn't much more, and thats with ALL new parts!

Although one thing I do love about the rotary is the way it revs and the way it sounds, and other things, but the ls1 is just...TORQUE! ****, RELIABLE! Oh, and parts are cheaper and easy to find. I still love my fc...I'm about to rebuild/streetport/turbo upgrade, but pricing it out, I wish I would've done the ls1 swap instead. Eventually...I'll have a v8rx7
Old 02-11-08, 11:31 AM
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HMM, what was that car that just beat all those porsches and ferraris on a track, oh yeah, the RX-8.

http://mazdamotorsports.com/pages/ne..._win_2008.html

Definately should have put an LS1 in it, because the 13b obviously isnt good enough.

Oh wait, if you look, they've had 22 wins with rotary powered cars, oh ****, who knew rotarys had a heritage of winning races and being reliable in endurance racing.

Maybe if any of you knew **** about your car you would, or if you werent some half bred redneck(yes, just because i'm from kentucky, im allow to say that) that only drag races their car because going in a straight line is all the excitement they need.
Old 02-11-08, 11:39 AM
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On top of that fact, there are people on this board making over 700whp on a bridgeported, but otherwise stock internally 13b.

If it doesn't run lean, it wont blow, if it runs cool it wont blow, it's just more sensitive than other engines.

I guess people are just too cheap these days to get a wideband and an egt gauge and put the ******* thing on a dyno.
Old 02-11-08, 12:30 PM
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^^^^ LOL at another idiot. Please explain your theory about LS1 swapped cars only being able to drag race? Lemme guess " the LS1 is too heavy and throws off the balancing" right?? wrong. And onto the high HP rotary motors. PLEASE SHOW ME ONE 700HP ROTARY THATS DAILY DRIVEN AND LASTS. I can show you a hand full of high HP LS1s that still get awsome gas mileage and last forever. And no, its not about being cheap, its about consistancy. Who wants a high HP motor that has to constantly be tinkered with and rebuilt when you can have one(around the same weight)that makes double the power with half the maintenance.
Old 02-11-08, 12:41 PM
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EDIT: I don't want to get involved, scratch that

Last edited by thetech; 02-11-08 at 12:50 PM.
Old 02-11-08, 01:06 PM
  #58  
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Originally Posted by thetech
EDIT: I don't want to get involved, scratch that
good idea.
Old 02-11-08, 01:15 PM
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The LS1 doesn't throw off the weight balance. I never said that "LOL" I've been around long enough to see quite a few of these debates.


Show me a stock, other, than upgrading the cam LS1, with N20,Turbo, or supercharger, that will make 750whp, and do it again, and again, without cracking the block, or throwing a rod etc.

As long as the rotary doesnt detonate, it wont blow up, it's common sense for the smart people out there, who have the high HP rotary engines, but for slow inbred people, it just doesnt add up for some reason.

I honestly dont care what you do with your car, but the rotary engine is race proven in reliability. Most problems with the car lie behind the steering wheel afterall, if youre an incompetent owner your car will break, simple as that.
Old 02-11-08, 01:17 PM
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This is getting ridiculous. Honestly, if you guys hate engine conversion swaps, stay the hell out of this section. You guys are a bunch of ******** whos only purpose is to come in this section and start a fight. None of you offer or possess any useful knowledge about any swap, nor do you have any ******* clue what your talking about. Until youve done it yourself you have absolutely no right to bash what others are doing...stop starting useless fights that only make you sound like a bench ricer.
Old 02-11-08, 01:44 PM
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Personally, I've always liked the feel of riding in a rotary powered car vs. a LS1 powered car. I prefer to finesse it and keep the revs in the powerband as opposed to stomp on the accelerator and get that insta-torque that the V8 guys love so much. I guess it's assurance that I'm not losing my touch with the pedals.

I'm biased towards rotaries. That being said, if you want a daily driver that gives you a fun ride, makes good torque and horsepower and don't have that much cash? LS1 Swap.

EDIT: And saves gas.

The only way to make the 13B compete with the LS1 is to front loads of money to use some of the new parts that the aftermarket has come out with. Lots of custom work, etc. But since the piston engines have that much more money invested in them then rotary engines, I think, if you're rich enough, it's only fair, and there should be no griping from the V8 community if such a thing were to occur.
Old 02-11-08, 04:35 PM
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Originally Posted by TehMonkay
HMM, what was that car that just beat all those porsches and ferraris on a track, oh yeah, the RX-8.

http://mazdamotorsports.com/pages/ne..._win_2008.html

Definately should have put an LS1 in it, because the 13b obviously isnt good enough.

Oh wait, if you look, they've had 22 wins with rotary powered cars, oh ****, who knew rotarys had a heritage of winning races and being reliable in endurance racing.

Maybe if any of you knew **** about your car you would, or if you werent some half bred redneck(yes, just because i'm from kentucky, im allow to say that) that only drag races their car because going in a straight line is all the excitement they need.
That rx8 does not have a 13b making your rant null and void.

Last edited by turbogarrett; 02-11-08 at 04:58 PM.
Old 02-11-08, 04:37 PM
  #63  
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Originally Posted by TehMonkay
The LS1 doesn't throw off the weight balance. I never said that "LOL" I've been around long enough to see quite a few of these debates.


Show me a stock, other, than upgrading the cam LS1, with N20,Turbo, or supercharger, that will make 750whp, and do it again, and again, without cracking the block, or throwing a rod etc.

The member 1 Bad Z on LS1tech.com ran a 9.69 on a stock shortblock pushing a 300 shot, no dyno numbers, and that was with 70k miles on it. Robert56 also made over 200 passes with a 200 shot on his Z06 when he was still stock. I know he started pushing more but I don't know if he did anything to the engine to do so. But I don't know what your point is? That's like saying show me a stock ported 13B that can do the same. Too bad I haven't seen any.

As long as the rotary doesnt detonate, it wont blow up, it's common sense for the smart people out there, who have the high HP rotary engines, but for slow inbred people, it just doesnt add up for some reason.

Have you looked in the 3rd gen section lately? How many members have been here for years? Now how many of those members are still on their original engine? None.

I honestly dont care what you do with your car, but the rotary engine is race proven in reliability. Most problems with the car lie behind the steering wheel afterall, if youre an incompetent owner your car will break, simple as that.
It's just not true. Even with the greatest tune in the world, you can still have TONS of problems crop up that will leave you stranded on the side of the road. Saying that the rotary requires a little bit more maintenance is putting it lightly.
Old 02-11-08, 05:11 PM
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Originally Posted by TehMonkay
The LS1 doesn't throw off the weight balance. I never said that "LOL" I've been around long enough to see quite a few of these debates.


Show me a stock, other, than upgrading the cam LS1, with N20,Turbo, or supercharger, that will make 750whp, and do it again, and again, without cracking the block, or throwing a rod etc.

As long as the rotary doesnt detonate, it wont blow up, it's common sense for the smart people out there, who have the high HP rotary engines, but for slow inbred people, it just doesnt add up for some reason.

I honestly dont care what you do with your car, but the rotary engine is race proven in reliability. Most problems with the car lie behind the steering wheel afterall, if youre an incompetent owner your car will break, simple as that.
Where is your 750whp rotary if it is so easy? GTFO.
Old 02-11-08, 06:14 PM
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Originally Posted by TehMonkay
HMM, what was that car that just beat all those porsches and ferraris on a track, oh yeah, the RX-8.

http://mazdamotorsports.com/pages/ne..._win_2008.html

Definately should have put an LS1 in it, because the 13b obviously isnt good enough.

Oh wait, if you look, they've had 22 wins with rotary powered cars, oh ****, who knew rotarys had a heritage of winning races and being reliable in endurance racing.
You're right, and a V8 has never won a race. And that RX8 doesn't have a 13B, brainy-ach.

Not only that, but we're talking about cars that you might own, not tube chassis, million dollar purpose built race cars.

Originally Posted by TehMonkay
Maybe if any of you knew **** about your car you would, or if you werent some half bred redneck(yes, just because i'm from kentucky, im allow to say that)
No, your geological location doesn't excuse you from insults and slurs.

Originally Posted by TehMonkay
that only drag races their car because going in a straight line is all the excitement they need.
You're right again. These guys only like straight lines.

Auto-x, best time of the day
http://media.putfile.com/FD-Grand-Prix-6

Giants stadium
1st place in class
http://www.ponycars.net/ax080307.htm

Poconos Road course, fastest street car of the day
lost FTD by .5 secs to a 2200lb race prepped Porsche on R comps
http://209.177.55.37/video/poceastoct2007.wmv

Evo center time trials
http://media.putfile.com/June-30th-2...in-the-LS6-RX7

SBF in FB @ Carolina Motor Park, kickin come ***, I might add.
http://www.youtube.com/watch?v=hJrpMaZSKz0

LS6 FD @ CMP
http://www.youtube.com/watch?v=NmJT6mfTBhU&feature=user
http://www.youtube.com/watch?v=qo0f4bn6cYc&feature=user

Kickin *** at VIR, Porsche? bye, Vette? See ya. M3? you're joking, right?
http://videos.streetfire.net/video/f...a3015f8b5c.htm

Dyno, autocross, weight comparison w/ R1, comments from R1 owner, "It's amazing. Very well balanced"
http://209.177.55.37/video/AX.wmv

Stick that in your 13mpg tail pipe and smoke it.
Old 02-11-08, 06:20 PM
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Originally Posted by TehMonkay
The LS1 doesn't throw off the weight balance. I never said that "LOL" I've been around long enough to see quite a few of these debates.
Apparantly not.

Originally Posted by TehMonkay
Show me a stock, other, than upgrading the cam LS1, with N20,Turbo, or supercharger, that will make 750whp, and do it again, and again, without cracking the block, or throwing a rod etc.
Show me a NA 13b that will do that. ****, show me an stock block/internals 13bt that can do that.

Your arguements are weak.

Originally Posted by TehMonkay
As long as the rotary doesnt detonate, it wont blow up, it's common sense for the smart people out there, who have the high HP rotary engines, but for slow inbred people, it just doesnt add up for some reason.

I honestly dont care what you do with your car, but the rotary engine is race proven in reliability. Most problems with the car lie behind the steering wheel afterall, if youre an incompetent owner your car will break, simple as that.
Of course, user error. Machines never break after stressed beyond their breaking point.

Unfortunately, some people don't have the time to tinker and tune their car daily. They have to do things like go to work.
Old 02-11-08, 06:45 PM
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https://www.rx7club.com/showthread.p...ighlight=ernie
https://www.rx7club.com/showpost.php...7&postcount=20

Now what?
Old 02-11-08, 06:49 PM
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On top of that, i've had a friend, switch from his FD in mid auto cross, into an LS1 powered FD at auto cross, same heat and everything. He said the LS1 FD wasn't anywhere near as easy to drive. On top of that, the 13b FD only had minor exhaust mods, azenis on stock wheels, stock boost, and koni shocks. Where as the LS1 FD, had 100 more HP, coilovers, and staggered 225/255 azenis. And the LS1 FD was only 1second faster.
Old 02-11-08, 06:59 PM
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Regardless if the speedsource RX-8 is 3 rotor, or 2 rotor, it still won, and fromt he track record listed, rotaries have already proven their reliability in racing, with 22 victories standing behind them.

On top of that, the only difference in the series, between the turbo and non turbo engines, is the compression ratio. The FD has larger dowel landings than the 2nd gen and 1st gen 13b engines do. This is the only thing holding back the earlier models from being able to make that much power.

Also, to say, it's not fair, because the LS1 is NA, and high powered 2 rotors are turbo, is pretty whiny, considering the LS1 has 4.35 times the displacement of the rotary engine.

I cant wait to see the new 16x, better emissions, light, stronger, better fuel economy. Mazda was set back 60 years or so with development, and now they're catching up. Hopefull piston engines will be eliminated all together in the next century.
Old 02-11-08, 07:01 PM
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Originally Posted by rosey
Where is your 750whp rotary if it is so easy? GTFO.
Are you just mad because no one liked your thread about why your FC wont shoot flames?
Old 02-11-08, 07:08 PM
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You said NA, that's turbo. Try again.

32psi?? street car? stock internals? that'll last one more dyno pull.

I can show you a dozen turbo LS motors over 700hp.

4x displacement? Please. You know rotaries are measured by different displacement standards.

22 races huh?

Want me to show you 10,000 races where a V8 won?

Might I remind you that the OP wants oppinions from those who have performed an engine swap. Unless you can oblidge, you should reconsider posting and save your hateraid for somewhere else.

Last edited by Eat-Pez; 02-11-08 at 07:14 PM.
Old 02-11-08, 07:15 PM
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I said they made 700+ hp on an internally stock 13b. Since when, ever, has that meant, it has to be an NA. The 13B is an entire series of engines, S3 to S9, FB to FE.
13B-EGI 13B-REW 13B-RE 13b-RESI

Theyre all 13bs.

None the less, show me a cammed LS1, turbo or SC or n20 that makes 750whp, on stock internals, and you can have that arguement.

Oh, and yes, it's ONE POINT THREE LITRES. I know you dont want to believe an RX-8 with a 2L engine beat porsches and ferraris, but it's true.
Old 02-11-08, 07:16 PM
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On top of that, rotary engines have won so many different races, they have been either banned or HIGHLY restricted in a large portion of them now. There are no other engines out there that can say the same thing.

EDIT: Thats only since 1975 as well, thats a win 2/3rds of the time.

Last edited by TehMonkay; 02-11-08 at 07:24 PM.
Old 02-11-08, 07:21 PM
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I see you edited, nice.

The 13B will last until the seals wear out, there is nothing more to it, obviously him and his tuner know what they are doing, that is the only thing important when building a rotary.

When will the seals wear out? I don't know, but I dont think there are any LS1s making the same HP/l as this engine is that will last any longer.

Yeah, please show me a 3297WHP LS1.

Also, show me LS1s, with 750 HP, street driven, that have no mods done, other than upgraded cams, valvetrain components, and porting. Completely stock bottom end. Please, do, I REALLY want to see one.
Old 02-11-08, 08:13 PM
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Stock lower end ls1's can make over 500 to the tires on a perfectly streetable setup. I really don't get what you're asking for? You want to compare what a heavily boosted 20b vs. a mildly modded, stock shortblock N/A Ls1?

What do you drive, n/a 2nd gen?


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