Hello All,

Im looking to get a feel for what #'s people have before they decided to upgrade the gears, do a 5Spd Swap, or the 6Spd straight up went to crap on them. Im pretty much just interested in #'s and how long you were able to run those # before you decided to change things up or it quit on you. We all know that the MR 6SP has many discussions and yes i have searched. But just trying to get a consolidated thread of straight #'s and what not.

I picked an IX MR that the previous owner said that it was making close to 360whp, not sure about trq. When i get back to the states i will be working with English Racing on my 60k Maintenance and a Full tune. Im trying to do research now of what else i might need to look into. Upgrading gears, new clutch (stock clutch 54k).

Thanks for the help hope i don't get flamed and tell me to search. I really want to get a consolidated thread on what #'s people have.


Thanks

Steve

 

2006 IX MR (6 speed)

445hp 455tq @ 27psi on 93oct - AMS Mustang dyno

Only been running for about 2 months and already changing parts to make more power. Still on stock trans and t-case.

 

Great #'s hope it holds up for you!

 

515/462 on VDR..
still on stock 6 speed..

 

Dang those are some sweet #'s. I didn't have high hopes for my 6sp until now

 

if your planning to make some serious power, just swap the 5spd in before you destroy a 6spd...

 

390whp/380wtq for dj, 347whp/333wtq for mustang. dynoed in 3rd gear

 

I have a 05 VIII MR same thing DD 67XXX 281.7 tq 329.3 whp Dyno Dynamics 0% Correction factor and no issues.

 

i wouldnt be worried about the trans with those power numbers since that is pretty close to stock, atleast on the DD near me

 

Im not yet but im in the process of a FP red 84mm ported with all suporting nods so im going to be at roughly 350-375 tq

 

440whp/ 415tq on a dynojet.... Exedy HD twin disc clutch, Stock 6-speed, Transfercase, and Rear Diff.

I drag race, autocross and Time Attack. Tranny is a little notchy now but still holding up. Ive been at these numbers for an entire season of racing (6 drag events, 15 autocrosses, 2 Time Attacks) About 40+ launches at 6500rpms and plenty of WOT pulls in 1-5th gears...

Ive punished this tranny, and its held up

 

340 whp, 300 wtq on a dyno dynamics, trap speed is 115 mph in the 1/4 banging the limiter at 8000 rpm in 4th. Bought the car with 12,000 miles on it, I'm now at 54,000 and have had all the same power mods since then along with the same tune. Still on the stock 6 speed, clutch, and t-case. The transmission has that infamous 6th gear difficulty from the bent shifter slides(my fault). The stock 6 speed may not be as strong as the 5 speed, but it's taken everything I've thrown at it and it's still holding up. I dd my car as well, I went from 12,000 miles to 54,000 in 2 and a half years.

Good luck with your new purchase

 

Thanks, after reading TRE's so called max power I have gotten worried. I will be on a ACT HDSS and all mods supporting the Red Upgrade so I just want to live through the winter and allow me to gather the funds to built it with shep if I can.

 

I just don't understand why unless you did drag. The 6-speed may not be as strong as a 5-speed, but it is NOT weak. Mine is holding up great with 450hp/tq and it will be over 500 soon. I have seen others who run over 500 and still have stock trans/tcase with no problems.

Sheperd does make a 6-speed built trans for those who do need to upgrade from stock.

Even if you do end up blowing the trans, you just get a built trans when it happens. Spending that money now is a waste. Either way you will spend it when you get the high power levels.

 

Around 390whp and 330 wtq. Input shaft is starting to go. Swapping to the 5spd. It's proven.