Well i'v allready lost one rear end to wheel hop, and if i dont get it fixed soon i'm going to lose another. I found solid diff mounts at RX7.com for 125 do these work well? Also who all makes a diff brace and how much are they?

Use the brace first, that should solve your problems, the stiffer bushings will not be of any additional help.

Dragon and KGparts make them. I've had both. Dragon's is by far the lightest. I had fitment issues with the KGparts diff brace. I had to cut a section out so it would fit without rubbing my exhaust hanger. I switched to a high flow cat and the hanger was even higher so I switched to Dragon's brace. If I remember right they were between 135-150 but don't quote me on that...

Yeah, try the braces.



boostedFD3S has tranny and diff braces and that damn driveline is SOLID. No hop.. just spin, grab, squat and launch!

I don't see trailing and toe links in your sig.





Rotary Extreme links

your right cause i dont have em yet. My bushings arnt bad and dont really need replaced but its on my list of things to do this summer. So far here's what i want done by tthe end of summer.





Diff brace

Coilovers

Toe links

Trailing arms

New rad

Fuel system

Dyno tuning



that's about the order it will happen in too. inless i find a really good deal for something.

If tire hop is your problem, do the links first. Cars run in the 10's without all these braces.

the ones that do are lucky. i was not i had pettit trailing arms, diff brace and trans brace and a t2 lsd and i finally stopped blowing up rear end parts

toe links and trailing arms will not eliminate wheel hop, i've done the research https://www.nopistons.com/forums/pub...IR#>/smile.png



diff brace however is almost a guarantee that you wont hop again

right that's also what i have been told, you need a diff brace. links and arms only help a little they dont take it all away.

**** that...I had NONE of that **** and learned the fix for no wheel hop.....





Launch Higher!

well i just got new tires and since i put these on the back i havent had any wheel hop. Kumho supra 712's 280 tread wear AA traction A temp ( 245/40/ZR17 ). so far they are the best hooking tire i have had on this thing. They dont handle as good as the S-03 but they hook way better.



And i think the key to not getting wheel hop is sliping the clutch not launching higher. I'm starting to learn how to slip on the launch really well. And i'm doing a new kind of shifting during the run. I no longer lift my foot off the gas for every shift i keep it to the floor my engine bounces off rev limiter for a real short period of time, then i drop the clutch once i'm in the next gear. It makes the car jump forward after every shift. I think some one called it floor shifitng.

slipping the clutch wont solve your problem as your car gets faster etc. still get the suspension parts. if you do it right, theres nothing better than an 8k launch without spinning or hopping.



i've got a question of the sorts though, what can i do to the rear end to handle 700whp reliably?

it's called powershifting. i can't recall why, but i've heard it's something you should not do on a turbo car.

no power shifting is when you shift at full rpm just like that but without using a clutch. You just slam or "power" it into the next gear. And you want to shift like i do on a turbo because it keeps the turbo spooled between shifts. I did it all tonight at the street races and i'v never pulled so hard in second.

diff/tranny brace, TII or aftermarket LSD, upgraded axles.

thats a pretty cheap solution considering the amount of power

lol you are powershifting...



it would be dumb to just shift into second with no clutch...and pointless...

then tell me why F1 drivers dont use a clutch, because it's pointless right.

HA! Their trannys are designed for that! Ours are not...

umm. Okay. Then how about I forgot to add clutch!

you have much to learn grasshopper. Tranny's that are designed to do that are called Guru tranny's...aka...dogmissions

Heh yeah, I would love to see him shift at full throttle with no clutch a few times

a few? Try once! No more synchro's = good luck getting in gear

www.rx-7store.net has a dif brace for about $160. I just ordered mine when I recieve it in the mail and install it on my girl i'll post to let whoever wants to know how the installation was and how it feels.

Jay

well we're only talkin about rear end https://www.nopistons.com/forums/pub...DIR#>/wink.png



im sure when you start to look at transmission, it adds up pretty fast

so dog missions are made to shift with no clucth? How does that work cause you can by dog missions for 7's. How does that work?

dogmission for FD = $7000+

how much power can the stock tranny handle anyways..

Ray at PFS(ForceFed7 on the other board) was making 700 ~ rwhp(2.25 kilos boost on a T-51R kai) with the STOCK tranny. Made SEVERAL runs on that same tranny. He ended up breaking axles before anything else...

i'v heard the stock tranny can handle right around 650 RWHP. But that's just what i heard.

Yeah, I think the key to keeping the stock drivetrain is eliminating all movement/slop/wheelhop.

so will powershifting an fd (keeping ur foot floored while shifting, using the clutch of course) decrease tranny life?? i was told this also and i didnt wanna try it.

hell if it does, then it just counter acts the supposed 22% more tranny life i get from haveing a 9.5lbs flywheel. And since i only do it when i'm racing it's not really a big deal. But i'll tell you what it works, and it works good.