Judge Ito

Yes 3250lbs with me in the car. I tip the scales at 250lbs.

Judge Ito

I personally know of one person with a 3 rotor in his Rx8. He is using the factory transmission to get the car up and running. I talked to him today and told him about my second tranny breaking with factory horsepower and no mods. He will have to upgrade his tranny with the 3 rotor turbo he has in the car. Rx8 is a fun car to drive but It does not have a bullet proof drivetrain like other cars that we have seen and tested. FD for example.

Judge Ito

Your average rule does not apply to the rotary engine. I have seen a 13B destroy a G-Force transmission that is used most commonly with NHRA Pro Stock racers. The pro stock racers are making well over 850rwhp and could race a complete event without any damage on a full racing transmission. In the other hand a high reving nitrous 13B engine making 430rwhp will crunch and break the same tranny a pro stock driver uses with no problem. G-force highly recommends the extra option when you buy a tranny from them. That is the TORSION BAR to absorb the high rpm impact to the tranny that a rotary gives.
You talk about 162 ft/lbs of torque? I dynoed less then that and I have to trannys broken already.

PoLaK

iTrader: (1)

That is mighty impressive ITO, next time you guys go to the strip mind taking me i've always wanted to go just never had anyone with the experience to teach me to do it properly. Anyone can drop a clutch at 8k not many can do it perfectly. I also wanna see the difference canzoomers mod makes in my car as a before and after + Borla.

Hey looks like we all got a well desevered Christmas present, slience of the trolls.

P.S. Im in Lawrenceville NJ near Trenton, just incase you don't remember or look below my avatar.

Judge Ito

If you haven't raced by the spring time, I'll let you know next time I go to the drag strip. I'm not racing the car until March. In the meantime I'll be looking to see what my options are to re-inforce the cars drivetrain.

Ike

Other than clutch and flywheel aren't drivetrain parts some of the last aftermarket parts to be made available?

racerdave

To me, if first gear fails, then it's a design problem, isn't it?

For example, 3rd gear in CR80 (Honda MX) transmissions are notoriously weak in shifter kart applications. So, aftermarket third gears were made, problem solved.

So maybe more people should do 8K launches to force Mazda to strentghen them?

PS -- It *is* good to hear that the carbon-fibre driveshaft is holding up fine for drag use.

Omicron

Judge Ito -

You see to be DA MAN when it comes to drag racing the RX-8. Have you been following this whole thing with "Limp mode" being triggered on the car if one spins the back tires for more than about 3 seconds? If not, I think you might find it very interesting, as it could (potentially) have a real affect on your times.

Check out these threads:
https://www.rx8club.com/showthread.p...threadid=16738
https://www.rx8club.com/showthread.p...threadid=16760

I thought it might be worth mentioning this to you in case you were interested in slaving the front and rear ABS sensors together to see if it improves your times.

Judge Ito

I read the thread, But I could tell you that I have not experienced any power loss do to the DSC or ABS kicking in. I make sure my DSC is totally off and follow up with my long burnout and wicked launches. If my car was loosing power because the DSC I would have not landed my 14 second runs and 1.9 60 ft times.

syntrix

Could have to do with if the front wheels are moving very much at all. Dyno, front wheel is not moving.

Snow, front wheel is probably not moving very much.

Burnouts, front wheel is most likely moving faster than in snow.

Just my 2 cents.

Judge Ito

You lost me there a minute. Explaine again...

syntrix

Front wheel speed in comparision to spinning rear wheels.

Judge Ito

Not sure if there is a problem if the DSC is turned fully off. I see your point but I'm not sure if the front wheels spinning less then the back has an effect of the DSC not giving any problem.

syntrix

Let me rephrase that.

Variable front wheel motion.

Constant spinning of the rears.


As speed of the fronts increases, maybe limp is less likely.

When you are in snow and the fronts are not moving at all, maybe limp is more likely.

It's all just a guess anyway.

Omicron

Good thought Syntrix, that might just explain the Judge's EXCELLENT times.

Judge, I see your point too, and you're probably right. But please my reply to you in this thread: https://www.rx8club.com/showthread.p...5&pagenumber=5

r0tor

iTrader: (1)

maybe the 3rd tranny you will finally leave it break-in fully before beating the bejesus out of it

.... nice times though

neit_jnf

Will synthetic tranny oil make it stronger?

Judge Ito

There is no way around me not breaking the tranny. I broke the 2nd tranny after I drove the car for 2000 miles after I got the new one in. Since I still want to improve in the cars ET I'll be working on a bullet proof gearbox. For who ever is intrested in my new gearbox Ill write a thread as I start the building stages.

slavearm

Right on. I could use a reinforced drivetrain. I am shooting for 350 at the wheels by next december, and could use the power.

Ike

It really will only reduce wear, but it won't prevent something like what happened to Ito from happening.

Ike

syntrix

There is a cross brace that runs front to back with the tranny.

Judge's weak link is the gears... maybe the tranny needs to flex a bit more?

Or maybe it's flexing too much!

Too bad there's no cheap tests for this one!

PoLaK

iTrader: (1)

Any Luck with Riping that video? ...... If Not drive down here and ill rip that thing for you.

Judge Ito

Ill be calling my friend today and asking him to give me a hand.

SDFLY

Can't wait to see the video Judge, and those stock times are like a breath of fresh air ...Hey Ike, I'm very impressed with your "positive" tone displayed here....Happy New Year!

Dissolved

where is the timeslip and or video of the 14.3 run?

EDIT: Rather see a video. Joe $hit the ragman can post a timeslip of anything. Not being an a$$. Just MHO