friend got an rx-7. *sigh*

The powerband might not have anything down low but broad being its distributed thoughout its RPM range and makes peak at the end. And turbos will allow it to get more torque and bottom end performance but their is a reason why its used in so many endurence races back int he day. Revs are good for road racing...maybe a bit hard but atleast there is a advantage. I remember watching Ferrari 360s take on the corvette at Rolex 24 hrs at Daytons. coming out of turn 3 the Corvete would have to shift while the ferrari just kept on going. I'll take a 9000 rpm red line and less wheel spining torque over...im just a sucker for high reving engines.:

-- Return of the rotary engine to American Le Mans competition highlights weekend --

IRVINE, Calif. -- MAZDASPEED Motorsports Development today kicked off its return to top-level professional sportscar racing with a second place finish in the LMP-2 class at the Sportsbook.com Grand Prix of Atlanta, at the famed Road Atlanta circuit. The three-rotor RENESIS-based rotary engine was jointly developed by MAZDASPEED and SpeedSource, Inc., and was chosen by B-K Motorsports to power their Courage chassis because of its compact size and broad power-band.

Representing Mazda in the Sports Car Club of Americas SPEED World Challenge Touring Car race on Saturday, Jeff Altenburg drove his MAZDASPEED/Tri-Point Motorsports MAZDA6 to second place. Starting seventh on the grid, Altenburg took advantage of a strong start and consistently competitive lap times to tear through the field. Finishing fourth was Charles Espenlaubs Mazda Proteg, with Altenburgs teammate Randy Pobst bringing his MAZDA6 home in seventh.

Another great weekend in the books, said Steve Sanders, manager, MAZDASPEED Motorsports Development and the man responsible for Mazdas North American motorsport operations. There really is nothing in the world of motorsports quite like the sound of that Mazda rotary engine at 9,000 rpm, and its a real thrill to know well hear that sound at every American Le Mans race this year. This weekend saw two very different Mazdas competing in very different classes, but they both had one thing in common: the soul of a sportscar that exists in every one of our vehicles.
The next weekend out for both B-K Motorsports ALMS LMP-2 Mazda RENESIS-powered Courage and the full complement of MAZDA6 and Protg SCCA SPEED World Challenge teams is the American Le Mans at Mid-Ohio on May 20-22.

Not a bad result for its debut back in road racing. I think FIA still have rotary engines band...dont know why.

Cool articles on rotary engines:

http://www.answers.com/topic/mazda-wankel-engine

Im not a huge fan of pushrod engines and leaf springs...sounds like the 1960s all over again. No variability in intake/exhaust timming...I would almost take a DOHC Ford V8 over a pushrod. I like the C6 but the engine kills it. Thus for performance I would take the ZR1...DOHC lotus/GM breed race car. Saleen S7 is a sexy car but the eingine kills it for me. I tried but never will be a fan of pushrods.

Im a Formula 1 900 hp DOHC V10/V8 fan and not a NASCAR 700 hp pushrod V8 fan.

I will admit one thing...Pushrod engines are cheaper to make because DOHC engines when designed right are very pricey. Thus why the Corvette and Viper can be priced so low. And why the ZR1 package was the most expensive factory add on to date. Not that the basic concept of the rotary is a huge technological leap but the Renisis is actually really advance...The intake dsign is pretty spectacular.
 
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My F body addicted friend is putting a twin turbo LT1/LS1 into his FC.. It's totally gutted and should be pretty sweet. My other friend has an FD that he is putting an RB25DETT into right now.
 
spacemonkey said:
The powerband might not have anything down low but broad being its distributed thoughout its RPM range and makes peak at the end. And turbos will allow it to get more torque and bottom end performance but their is a reason why its used in so many endurence races back int he day.
No. It might be splitting hairs, but turbos allow you to get more power from a given displacement over NA. It was the sequential set-up which allowed that power to arrive earlier, at lower revs, for a streetable car.
spacemonkey said:
Revs are good for road racing...maybe a bit hard but atleast there is a advantage. I remember watching Ferrari 360s take on the corvette at Rolex 24 hrs at Daytons. coming out of turn 3 the Corvete would have to shift while the ferrari just kept on going. I'll take a 9000 rpm red line and less wheel spining torque over...im just a sucker for high reving engines.:
I guess I don't understand. Not saying this is wrong, but if power output is the same and the car is geared accordingly, how are having more 'revs' , by themselves, advantageous to road racing? Regarding the Ferrari vs. Corvette, I thought we were comparing an LS1 against a rotary, and the qualities of two comparably priced engines. But irregardless... I'm not familiar enough with the Daytona course to comment for sure, but (respectfully) my first reaction is...so? It's the entrance and exit speed and acceleration out that counts, not revs or having to change gears. I do think it's significant that the C5-R probably cost a fraction of what that Ferrari cost but was obviously still competitive.
But yeah, I love to hear my FD under boost, especially in 3rd gear and 4th gear, where it lasts the longest. (2thumbs)
spacemonkey said:
Im not a huge fan of pushrod engines and leaf springs...sounds like the 1960s all over again. No variability in intake/exhaust timming...I would almost take a DOHC Ford V8 over a pushrod. I like the C6 but the engine kills it. Thus for performance I would take the ZR1...DOHC lotus/GM breed race car. Saleen S7 is a sexy car but the eingine kills it for me. I tried but never will be a fan of pushrods.
Im a Formula 1 900 hp DOHC V10/V8 fan and not a NASCAR 700 hp pushrod V8 fan.
I don't have stock in GM and the only V8 in my garage currently is a NORTHSTAR. But don't dismiss the ability of the pushrod just to NASCAR. Besides, why would you want the ZR1 over a ZO6, which was lighter and faster?

spacemonkey said:
I will admit one thing...Pushrod engines are cheaper to make because DOHC engines when designed right are very pricey. Thus why the Corvette and Viper can be priced so low. And why the ZR1 package was the most expensive factory add on to date.
A car doesn't have to cost more than the average house for me to be impressed. ;)
 
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BAH@!?>!@ **** THAT LS1 GARBAGE

On a FC, youre pushing it, but in an FD, WHAT are you THINKING :mad:
 
Im with Dextar :D Keep the rotary, thats what makes an RX-7 and RX-7. Put the LS1 in a miata, they need to be ungirlified anyways. :D (joke dont no one get mad at me) :D
 
boostisgood said:
Im with Dextar :D Keep the rotary, thats what makes an RX-7 and RX-7. Put the LS1 in a miata, they need to be ungirlified anyways. :D (joke dont no one get mad at me) :D

They actually have a miata with a ls1 in it.. that thing is bad ass.. but the miata with a 302 v8 is more common and alot of people have done that..
 
how much and how hard would it be to get a 20B? do they need to have more upkeep? screw the LS1, get the 20B
 
hinsonsupercars.com make the subframe and motor mounts for the 20b for a direct bolt in into the car for 1700 no cutting and welding required.. then u add 3000 for the 20b and about 2kto 4 k to get it running with new stuff..
 
shaneMazda2000P said:
63k, time for a new engine and turbos soon..

Not necessarily. Depends on how it was driven, number and types of mods and how well it was maintained.
I've got 71k on mine, with all reliability mods plus what's in sig. I take care of it and don't beat it like a rented mule. Pulls 18 hg/in vac @ idle and boosts 10-8-10. :)
 
Signal 2 said:
Not necessarily. Depends on how it was driven, number and types of mods and how well it was maintained.
I've got 71k on mine, with all reliability mods plus what's in sig. I take care of it and don't beat it like a rented mule. Pulls 18 hg/in vac @ idle and boosts 10-8-10. :)

thats kool, i was just sayin in genral terms, most people use and abuse them hence killin the motor and turbos..
 
I have a local friend with a LS1 3rd gen. He got tired of blowing up rotary's with his single turbo setup. It dynoed at 425hp to the wheels. He did a lot of track days at VIR and drove the car to and from the track so reliablilty was a key concern. After rebuilding 2 rotarys he had to make a decision to give up the car, give up the power, or give up the rotary. Now he has a 400+ hp 3rd gen that is dead reliable and technically speaking...no heavier that the original car considering the bigger turbo/front mount IC setup that was removed. He still has A/C and he doesn't have to worry about high boost, apex seals, and overheating. I rode in it and having that much torque in a 2700lbs streetcar is absolutely insane. It also sounds really good breathing through his HKS exhaust...who would have thought? I love the uniqueness of the rotary and applaud Mazda for taking the road less traveled, but as stated before...rotarys are great motors when kept within their power limits, but when you start pushing limits with them they don't last long and your wallet is sure to suffer. The 20b is a great replacement and can make 400+ hp without a sweat, but the cost of getting one into a 3rd gen is still much higher than a fairly modified LS1 would be and you would still make less power/$ no matter how you slice it.
 

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