DCharger68
DCharger68 Reader
7/6/14 10:53 p.m.

I found out the transaxle for my 74 Stupor Beetle is an AH code IRS trans. Any idea how much power these are good for? Can it hold around 300 horses?

icaneat50eggs
icaneat50eggs HalfDork
7/7/14 7:10 a.m.

Torque kills trans not hp. That being said,unless you drive like my grandma I can't fathom this thing lasting with the 6" ring gear

DCharger68
DCharger68 Reader
7/7/14 8:27 a.m.

I've been trying for a week to get an answer on The Samba. First reply on here answers it. GRM FTW

noddaz
noddaz Dork
7/7/14 10:15 a.m.

Being that transaxle was designed for something like 60hp, I really don't think it could handle anything near 300hp stock...

icaneat50eggs
icaneat50eggs HalfDork
7/7/14 10:31 a.m.

Now, type 2 trans can be built to handle that type of power, but that's real money.

DCharger68
DCharger68 Reader
7/7/14 6:56 p.m.

Well I've found axles rated for 500 for somewhere in the neighborhood of $900. But could I make the stock transaxle live until then if I drove like your grandma?

noddaz
noddaz Dork
7/7/14 7:28 p.m.
DCharger68 wrote: Well I've found axles rated for 500 for somewhere in the neighborhood of $900. But could I make the stock transaxle live until then if I drove like your grandma?

Sure... Anything will work if you let it...

Kenny_McCormic
Kenny_McCormic PowerDork
7/7/14 8:13 p.m.

You'd want a bus trans or reversed Subaru box(http://www.subarugears.com/Pricing/Pricing.html) for that kind of power.

Wally
Wally MegaDork
7/7/14 8:20 p.m.

In reply to DCharger68:

Not like my Grandma, but she never liked anything with less than 427 ci.

DCharger68
DCharger68 Reader
7/7/14 9:25 p.m.
Wally wrote: In reply to DCharger68: Not like my Grandma, but she never liked anything with less than 427 ci.

Reminds me of the 67 Nova in our group. Runs a 496 with a big hit of nitrous. The owner calls it "grandma's grocery getter"

icaneat50eggs
icaneat50eggs HalfDork
7/8/14 6:12 a.m.

I'm highly skeptical of a $900 trans for that power. What engine are you running? Another option is a porsche 915 which gets you an extra gear

mad_machine
mad_machine MegaDork
7/8/14 7:46 a.m.

I would be more inclined to run the Porsche trans... but I do need to see how compatible the Subaru one is

DCharger68
DCharger68 Reader
7/8/14 8:32 a.m.
icaneat50eggs wrote: I'm highly skeptical of a $900 trans for that power. What engine are you running? Another option is a porsche 915 which gets you an extra gear

I've got a single port 1600cc now but I'm building a 2100cc stroker engine to put in it

iceracer
iceracer PowerDork
7/8/14 9:49 a.m.

You will be lucky to get 200 HP.

icaneat50eggs
icaneat50eggs HalfDork
7/8/14 12:28 p.m.

Does the new engine in life a turbo? Otherwise 300hp seems really optimistic. Hell it's optimistic with a turbo

DCharger68
DCharger68 Reader
7/8/14 12:37 p.m.

It'll have a turbo. But the new engine is a dual port also

TeamEvil
TeamEvil HalfDork
7/8/14 1:29 p.m.

"Can it hold around 300 horses?"

Not even close, the R&P will come apart along with everything else.

You need a custom built Pro-Street style transaxle minimum. With the torque accompanying that horsepower, you'll more than likely need a proprietary built race-only trans. Of course a 300 HP VW based engine will only last a moment or two anyway unless built by an EXCEPTIONAL professional using ALL after-market parts and pieces, so maybe you could stick with the stock trans after all.

Speed, especially with VW components, cost money. Then a lot more money after that.

Hit here: http://www.thesamba.com/vw/forum/viewforum.php?f=12

Ask all of your questions and they'll be answered. Guaranteed ! ! !

Seriously, you NEED to correspond with some professionals on this or you'll toss all of your time and money into a big wide pit.

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