HP limit of the M5?

[veesix]

Does anyone know what the hp limit is of the M5?

[John D.]

Probably higher than you will ever have to worry about with a 3.8. I would worry more about what your clutch can handle versus the tranny.

[Liquid Silver]

Hmm... I am not 100% sure seeing as I have an A4 3.4... so hopefully someone will back this up better... BUT this topic came up before and from what I can remember... it's somewhere around 270 at the motor. I am pretty sure that the torque limit is a little over 300ft lbs.
Ricecooker installed the supersix GM 3800 powerpack and he's pushing around 270 I think (with the tuning and whatnot) and has over 300ft lbs of torque- his clutch was slipping so right around that area is when you'll need a stronger transmission. Just something to think about- an LT1 makes 275-285 horsepower (depending on the year) and they have the T56 six speed transmission.

[ January 02, 2002: Message edited by: Liquid Silver ]</p>

[pgriffith]

Im running a 75 shot of juice with the other mods in my sig so I would assume I am well over the 275 HP. My 75 shot of juice is rear wheel horse power rated too. So Im maybee 290 hp? I really dont know any numbers I would assume that I am around that 270hp range though. I have had no problems. I am on a stock clutch, trans, rear end, even stock 2 piece driveshaft.

[veesix]

<blockquote>quote:</font><hr>Originally posted by John D.:
Probably higher than you will ever have to worry about with a 3.8. I would worry more about what your clutch can handle versus the tranny.<hr></blockquote>

Ya I need to get a new clutch soon. The reason that I am asking is I plan on buying the GM 3800 power pak and adding a 4-6 lb S/C and seeing what kinda power I can get :D

[Tiago]

its not the hp you need to worry about but the torque. the old BW T5s were rated at alittle above 300 ftlbs I heard but now they are being made by tremmec and they are only rated at 250 ftlbs [img]graemlins/omg.gif[/img] there are hundreds of us pushing more then that.

Im wondering how long mine is gonna last, according to dd2k Im making about 440 ftlbs of tq at 3k when I hit the juice LOL!

[veesix]

man those are some nice torque numbers. Does anyone know if their is a kit to beef up the tranny? will a 6sp bolt up to the 3800?

[Tiago]

6spd wont bolt up, I don~t know if there is a kit to beef it up either.

[Jason McCallister]

<blockquote>quote:</font><hr>Originally posted by veesix:
will a 6sp bolt up to the 3800?<hr></blockquote>

Not directly but there might be options! Here's one...

http://www.spohn.net/index.cfm?fusea...t&productid=57

Pay close attention to this one detail on this page... <blockquote>quote:</font><hr>Also includes a special adapter plate that bolts the transmission to the stock T-5 bellhousing. <hr></blockquote>

However, it does state that this kit is for the 1982-1992 F-Body. If someone could investigate the bellhousings on the 3rd gen V8 vs 4th gen V6, then it's possible this kit will work! ;)

It's not a very cheap option... <blockquote>quote:</font><hr>This in turn requires correspondingly shortening the rear differential torque arm by 1.9 inches... &lt;snip&gt; ...Retain the stock 27-spline slip-yoke, but shorten the driveshaft by 2 inches...<hr></blockquote>

I dunno... it might work, it might not work. Someone whose more mechanically inclined or knowledgable about the 3rd & 4th gen T5 bellhousings could tell you.

Good luck! :D