05rex8

iTrader: (7)

^you also have not driven a 300rwhp turbo rx8 on the track so I don't think you can say it's not competitive

I'm sure chickenwafer, or Jeff for that matter knows about this topic

Kane

iTrader: (1)

Don't worry about cluttering the thread - I love the peak vs street power debates... I usually learn a lot.

WhiteSnowflake8

iTrader: (5)

As i have seen plenty of videos and timed events. You could see the diff. I have seen MM's car on some of the tracks, i don't want to quote what power he has since i don't know. nor i know his times but he would be one to give some good input. Though i have estimated some times at PIR, i still don't want to say anything until he himself posts his time. Like i said, im sure its competitive, if you stick to a slower class. Though at the end, i guess the driver does a lot of the work.

Alright, just didn't want to take up space since im not boosted.
for now.

I feel you guys should read this.
http://www.rx7club.com/showthread.php?t=833684

Kane

iTrader: (1)

I have built and tuned a 425HP FD; and IMO - that it the limit for a daily driven rotary. The diff was the car broke 200 HP at 3500 RPM - so very wide powerband.

I am sure others will agree - but the NVH level, fuel, maintenence et al above 425 would have put the car outside of the fun realm; and without a smooth dry road you could never tromp on it anyway.... so IMO - that would be a limit I would be comfortable with in any 2 - rotor rotary... it would be nice in the 8 fer sure.

WhiteSnowflake8

iTrader: (5)

That would be fun on a track though. I agree that high hp cars shouldn't be on the street. Well if you plan to do anything besides driving it calmly. For most of the time fun on street = illegal. lol

Kane

iTrader: (1)

Yeah good point... silly speed limits.

WhiteSnowflake8

iTrader: (5)

oh kane btw, let me ask you this. Since you have the best of both worlds. The FD and the Rx8.. which do you like best?? lol it might be a hard question to ask but its worth a try.

05rex8

iTrader: (7)

So stick to a lower class, its all about having fun I thought. That's just me though, everyone is different. Anyways can't wait to see your new plans for your car man.

Kane

iTrader: (1)

That is easy.... I don't have the FD anymore - I gave it to my dive buddy after we built it.

If I had a track - maybe.... but there is no comparison to the 8 and the FD; comfort, street performance etc - the 8 wins hands down.

WhiteSnowflake8

iTrader: (5)

It is about having fun, that is if you don't mind spending 400 in entry + plus accommodations and not wanting anything in return. Then sure have as much fun as you want. And even in the lowest class for Redline there is gonna be a lot of high hp cars. seeing as in the rules they allow 1 major engine modification being a swap or a turbo kit.

So rx8 wins in normal life conditions? ill have to go swap cars for a day with a friend to see the differences.

Kane

iTrader: (1)

Seriously, go try it out man - no comparison...

MazdaManiac

iTrader: (3)

I'm not sure what you mean by class - its all pretty much "heads-up" for street cars on the road courses. There are usually just two TA classes by power to weight and the RX-8 would be in the "high-power" class with only 250 HP.

My times at PIR are within 8 seconds of the fastest times on the track for a street car. At Firebird west, the margin drops to just 4 seconds.
The TA I did last at Firebird main (at 9PSI) put me within 6 seconds of the fastest car in my class - a 400 HP STi.

WhiteSnowflake8

iTrader: (5)

Well where you racing under nasa? Redline? I mean if your actually racing in a event instead of a open track day then there will be more than 2 classes. Atleast in MW events thats how it is. You got street, modified, and unlimited. then each with street or track tire..

But thanks for the input. since your closer to ca, you ever gonna try streets of willow?? id like to see a 300hp rx8 on that track.

MazdaManiac

iTrader: (3)

Already have a couple of times.
http://www.youtube.com/watch?v=WEf47o_tOrs
Turned a 1:27 on street tires.

WhiteSnowflake8

iTrader: (5)

Thats pretty good, would do good on a redline event. prob top 5

halimsteven

it's an interesting talking here, but everything is depending on the tune, that's why most of 8 blow their engine because of poor tune, or they can't wait for the tune, orwith the base map, they pushed the car. i have mazsport type 1 (knock the wood) i have run turbo for 10,000 miles, and it's running 9 - 10 psi all the times.
sorry to join the thread, but i like to join the pool. i pushed 300 whp at 7 - 8 psi, but i have upgraded everything, from injectors to cooling system, everything that you ever think for rx8. it's nice to have that speed in RX8, plu lighter flywheel by exedy.....it's pulling crazy....in otherwords, it's not only slapping the turbo in, but you have to upgrade that support the engine to keep it cool.
steven

Kane

iTrader: (1)

My Rotary Book by Mark Warner was just delivered.... excellent.

chickenwafer

iTrader: (9)

I don't want to rehash anything (I haven't been on the forums recently) but I think you misunderstood when I said "stock block". Obviously, you aren't swapping for aftermarket rotor housing (since there are none) and aftermarket plates from Turbosmart and Racing Beat aren't really for power.

I meant stock ports. I HIGHLY doubt any 13B anything has hit over 400-rwhp on pump gas on stock ports. Most people rebuild their motors and port them to hell anyways, but stock ports on an FD are pretty restrictive. The point I am making is the Renesis is already potent from the factory with oversized ports.


And like Kane was saying with his old FD, there is always a point of diminishing return with power upgrades. I want my 8 to have xxx power but I don't want to have a Paris Dakar Rally Support Team effort to follow me (you get my drift). Those cars are just handfuls to take care of.

I'm not saying you can't handle a car with that much power, but a lot of people just get caught up in power figures. It reminds of a story my friend with a 550-rwhp Cobra told me- this punk kid goes to this Cobra shop here in Phoenix with a new Cobra and wanting 4-digit power. The owner of the shop decides to take the kid for a ride in their 750-some rwhp shop car. The kid ***** his pants.

I'm hoping after my move I can get to Miller Park in Utah, I've heard that's a nice track.

05rex8

iTrader: (7)

-insert evil hamster pic-

WhiteSnowflake8

iTrader: (5)

Again http://www.rx7club.com/showthread.php?t=833684

Do read the other comments. Better ill quote a few here.

yes yes i know that is on e85, but even on pump gas it would be above your number. Not trying to argue but its kind of hard when there is data right there to prove that.

Also i know what your talking when you bring up the power thing. I know most people have never driven a car over 350hp, let alone anything above that. All im saying is that Im one that has, and knows what it feels like. Probably the most i have touched was 450hp, but it was on a 2.5k lb vehicle. Not street legal, or so they say. It was a monster compare to a 350hp charger. And i could see how that 750hp cobra would be crazy, but if you got it on a track where you can actually unleash it right i bet you its not as bad. Remember city traffic and conditions add this so call "scare" to people with high hp cars...
Right now my project is a stripped FD with 400hp. then will c if i need to bump up the power or not.

olddragger

iTrader: (3)

i track a fair amount with approx 300 to the wheels via the Pettit kit. It totally changed the car.
More power on a road course does not automatically mean faster times. I routinally past much higher hp cars. Lots of variables on a road course and I am probably preaching to the choir .
The renasis is still developing due to the side ports and to me it seems that it is going through the same kind of trial and error phase that the earier rotaries did in discovering what works. 2 yrs ago look what was happening. Now look.
Reliability all rests in the tune, control of the heat and lubrication + how you drive and mantain it. AND I agree the water meth system is a must for any fi renasis engine. Cool charge temps, insuring octane and help with carbon buildup are all required.
olddragger

chickenwafer

iTrader: (9)

I stand corrected if that is indeed a stock ported motor, It's REALLY hard to believe tho but also REALLY cool if it is true! It just can't picture how the stock ports can move that much air....

No one can deny that the Renny has more port area than a stock FD 13b. Cool shyt tho.

WhiteSnowflake8

iTrader: (5)

That was what i was building on my car. Right now i have Bhr rad, mazmart water pump and ss braided lines. Also a massive single oil cooler. I just think i rather spend money on a car that is already developed and has more potential then one that its still underwater. Some day there will be more R&D on the rx8. But it looks like with the release of the "rx9" the rx8 will just stay out of the scene.

there is a few other people that reached high hp with stock ports, just i can't seem to find their build. Will post them up when i find them again.

WhiteSnowflake8

iTrader: (5)

quick question, im on idle stock it revs fine and all but once i let go of pedal it dies on me. Im guessing its a vac problem maybe? just which. gonna take off tb and put hoses on tighter see if that works.

Kane

iTrader: (1)

Sounds like it.... you can try starting fluid to see if you can find it.