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SEMA and Sevenstock, Re-amemiya signing the car, going on hoonigan
Great adventure. Great meeting rotary guys. Blew the trans finally, it broke coming out of corner exit on Autoclub speedway with boost at around 1100hp. Time to look at sequential.
Good to meet you Dave (Another Dave here) I was hoping to see more of it on the track but c'est la vie. I'm the dude that was chatting with Logan about the 4 rotor he brought/built that I'll be implementing/tuning for a client. As always I'll keep tabs and might ping you one of these days if that's cool.
Brand New Quaife 6-Speed QBE69G Extra HD Sequential
2.75
2.025
1.54
1.25
1.0
0.87
RPM drop will be around 2,000, meaning when shifting at 9k, each up shift will return to 7k. No more falling out of powerband between 2nd and 3rd gear,
Doing hall-effect gear position sensor to the haltech and a strain gauge for closed loop flatshifting, and then I'll ramp the timing back in after the ignition cut, gradually so there's less tire shock and we can stay WOT full boost from 1st gear to 6th.
Rear brakes 4 piston, working on my own brembo kit to make it fit, and a remote bias line. Ditching the useless e-brake
upgrading spring rates yet again
driveshaft, driff girdle and PPF delete brace, DSS axles, and then time for break records
Man I’m excited about this lol. I think it’s safe to say u have the hottest car on the internet right now. The hoonigans video already has over 1.1M views in a week! Compare that number to other cars that’s been there. Did You know that Rob Dahm’s video of your car is his most viewed video with over 10M views😂 I tried to defend you against some of the Rob Dahm fans in the comments on the hoonigans video and my comment got deleted immediately smh. The truth hurts lol. I been following this thread since day 1, I’m always checking for updates. Your car has my complete attention. Did you make any videos at sema or seven stock?
Man I’m excited about this lol. I think it’s safe to say u have the hottest car on the internet right now. The hoonigans video already has over 1.1M views in a week! Compare that number to other cars that’s been there. Did You know that Rob Dahm’s video of your car is his most viewed video with over 10M views😂 I tried to defend you against some of the Rob Dahm fans in the comments on the hoonigans video and my comment got deleted immediately smh. The truth hurts lol. I been following this thread since day 1, I’m always checking for updates. Your car has my complete attention. Did you make any videos at sema or seven stock?
thanks man, yep I get it all the time. Show up to a car show running and driving "bro you should have done AWD, theres one with 2000hp on youtube" lol
I have alot of footage, but focusing on getting alot of cool changes made to the car, then I'll start uploading content! Thanks for keeping up
I’ll be surprised if the Quaife will hold up with your power levels, hope it does for you
Good luck and great car, passion and drive though 👍🏼
I got it for a steal, and its brand new, too good of a deal to buy anything different. It should hold power fine, car is high rpm horsepower, not alot of shockload/torque. There's a Quaife QBE69G 427ci Turbo LS engine, with over 900ftlbs+ drifting for Monster Energy in UK no issues
Trying to decide if it's worth doing paddle and pneumatics or do closed loop with strain gauge on a lever. Leaning towards keeping the lever because it seems like it would be more "mechanically satisfying" for driver and "visually stimulating" for videos
I don't think I'd ever do pneumatic in a streety car (I know this isn't really a standard vehicle) I'd check out XAP or Manelli with their electromagnetic sequential actuators, I believe Ficosa is an OEM supplier as well. I was going to go that route with this 4 rotor build though now the driver would like an H pattern so Hewland it is.
I got it for a steal, and its brand new, too good of a deal to buy anything different. It should hold power fine, car is high rpm horsepower, not alot of shockload/torque. There's a Quaife QBE69G 427ci Turbo LS engine, with over 900ftlbs+ drifting for Monster Energy in UK no issues
All of these boxes are rated quite low compared to the power we've seen them handle
fair play for getting such a good deal and hope it does hold up for you.
I’m pretty sure the blue dream Rx7 runs a quaife and had just twisted the input shaft recently at Tsukuba but not sure on power or Tourque that makes.
make sure you post plenty of pics of the install
fair play for getting such a good deal and hope it does hold up for you.
I’m pretty sure the blue dream Rx7 runs a quaife and had just twisted the input shaft recently at Tsukuba but not sure on power or Tourque that makes.
make sure you post plenty of pics of the install
I heard it blew an engine and just recently got back up and running. Where did you hear/see info on transmission input shaft twisting? They're making 600whp.That would really be unfortunate, and far under the rating of the transmission.
Theres also two similar 6 speeds, qbe60 and qbe69, major difference in ratings for power.
on a video option video posted on your tube a day ago 2019-2020. The dream RX7 is on the video with a red civic
can’t seem to post the link at the moment
ah yes i just saw the video,
doesn't seem to big a deal. The shaft can be swapped pretty easy, I see it broke at the engine side, not inside the trans, which could be from just years of use. Looks like they've been running that box since 2014 hard. He also is lifting when shifting and getting back on the accel really hard. Which is what i Think contributed to failure of my box, the shock on the input shaft. Running a flatshift with ignition cut and a timing ramp would make the shifts much smoother so you're not on/off the bearing/shaft loading from output shaft decel to input shaft accel every shift under power
THe one for this rx7 actually has a Viper input shaft 26 spline, and I've ordered a mazda 23 as a backup with the adapter plate. So if we ever have issue we can just swap clutch disc splines and shafts pretty easily. I unfortunately don't see much way around this on any transmission if the input is snapping at the engine block. Maybe other transmission companies have superior shafts? Just doubtful that it can be any stronger given the limitation of diameter.
You’ve done your research and know your stuff so will probably be fine.
if they have been beating on that trans since 2014 i’d be happy with how long it lasted to be fair
thanks to Marky above for the concern and sharing that, I've been trying to get as much info as possible ,every bit helps
I spoke with Quaife earlier about these concerns
They say that they've never seen a single input shaft snap, except for this video. And that the customer has not called or replaced it yet. The tech believes from watching the footage, that by slamming the clutch in/out between shifts (as seen in footage) is constantly loading / unloading the shaft with massive shock from the pressure plate, especially while maintaining full throttle. Its suggested that lifting off throttle to shift, and/or using an ECU torque management flatshift will keep shock down substantially versus the method the driver is demonstrating.
I also asked about a torque rating. They say that they do not give a specific rating on the transmission, because there's so many different tires, suspensions, uses, all they can give is feedback from current customers. They have a 1200hp drift car in UK, a few 900+ hp drift cars in japan, and 1000hp coyote time attack car in USA with no issue besides regular dog ring wear.
Glad I went with this box now, the customer service is absolute ON POINT. These guys car and answer every little question with enthusiasm and detail. Number 1 priority to me!
Can't wait for the adapter plate and the new shaft. It's going to be about 8 to 10 weeks. In the meantime I'm doing:
axles, new ring and pinion ratio, diff brace, tubular pinion support from the roll bar, rear brembos, new halo-seats, 2k+ higher springs, and then proceeding to wire up the extra inputs and outputs to ECU with the I/O expansion box
Plan is to turn it up to 18-20psi, get her to make around 1200-1300rwhp in top gear;
swap the rear so the ratio's are real tight, with the final gear (6th) being right at exactly 200mph on 27 inch road race tires
Retune for boost by gear, likely spring pressure 7 psi in 1st/2nd gear, 10psi 3rd, 12 psi 4th, 15 psi 5th, 18psi 6th etc etc, and then wire in g-meter, so we can do traction control based on wheel slip % F/R and use fuel cut traction logic from the elite 2500. The G-meter will allow variation in wheel slip % based on forward motion vs turning. Then wire up clutch switch so we can do launch control.
If we can get the car setup with flat-shifting, launch control, boost by gear, and traction control it should finally be able to go for 1/2 mile , 1/4 mile, and time trial. I'd like to see it do all 3x next year, pending that all of this stuff works out. SO MUCH DAMN WORK TO DO!
No problem at all and glad i can have a little input to help out where I can.
At the end of the day it’s all about helping each other out constructively where we can as we all share the same passion.
can’t wait for the install pics.
my car is tucked away for the winter now due to the crap weather here in the U.K.
Just curious, why are you still running the OEM Mazda diff? At least in the V8 community, most abandon the Mazda 8" diffs at pretty low power numbers compared to what you're making. The 8.8" has a ton of ratio options and a few turbo V8 guys are making similar torque numbers to you without issues. I have the Ronin FC 8.8" kit and it is pretty comprehensive and cost effective. You might even be able to make your DSS axles work with the 8.8" with new stub shafts.
Just curious, why are you still running the OEM Mazda diff? At least in the V8 community, most abandon the Mazda 8" diffs at pretty low power numbers compared to what you're making. The 8.8" has a ton of ratio options and a few turbo V8 guys are making similar torque numbers to you without issues. I have the Ronin FC 8.8" kit and it is pretty comprehensive and cost effective. You might even be able to make your DSS axles work with the 8.8" with new stub shafts.
Hey thanks so I have the carbonetic 1.5 way in the car right now and it's been doing phenomenal for the past 3 years. I'm just kind of stubborn on the principle of "if it's not broken dont fix it." An 8.8 would be nice but I'm just curious to find the limit first. There have been many drag guys who have run low 9s high 8s in the stock IRS case. If that's possible, I do not see the differential being an issue in road racing, half mile, intended use.
the perfect gear ratio for the new transmission with 27 inch slicks is a 4.44 over the oem 4.1. I've found one from an rx7 for under $80, that I'll be swapping in this week. Also will be running an HPP cradle, and a Sikky Ppf delete brace, and then likely tying the roll cage into the brace, to take the stress off of the floor of the car and the subframe.
I just picked up a set of DSS axles for the rear last. Should be pretty solid!
11-18-19, 11:38 AM
