2.35L Torque Questions

Heads, valves, pistons, rods, crankshaft, etc...

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smh0101
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2.35L Torque Questions

Post by smh0101 »

So I was wondering how many here have stroked their motor to 2.35s

I'm worrying that its gonna have so much torque that it'll kill my tranny really quick.

What do you guys think?

Think it'll be enough to kill a stock legacy turbo 5mt with 157k miles on it?

I'm starting to think about assembling my 22t block (the stock one thats not messed up) with 25d heads and a vf12 with 440s and a perfect power.

I dunno, what do you guys think?
~Spencer
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555BCTurbo
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Post by 555BCTurbo »

The transmission will live as long as you treat it nice...
Nick

1987 Audi 4000CS quattro...soon to be 20VT
1994 Dodge Ram 2500 4x4 CTD, #11 plate, 30 psi, Scotty II intake, 4" exhaust
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Post by smh0101 »

Because my first 5mt died because I hammered it. :roll:
~Spencer
94 Legacy Turbo (550 Robtune/ej20h v2 Sti RA drivetrain)
94 Legacy Ti Wagon (5mt ej22e)
91 rhd Legacy GT Wagon (factory 5mt, ej20g)
93 rhd Legacy GT type S2 Sedan (4eat, ej20g)
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Post by 555BCTurbo »

smh0101 wrote:Because my first 5mt died because I hammered it. :roll:

Well...I doubt it was power that killed it...since your car is stock
Nick

1987 Audi 4000CS quattro...soon to be 20VT
1994 Dodge Ram 2500 4x4 CTD, #11 plate, 30 psi, Scotty II intake, 4" exhaust
douglas vincent
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Post by douglas vincent »

Treat it nice, my 1990 NA tranny held way more power than your making..... ;)
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Post by smh0101 »

555BCTurbo wrote:
smh0101 wrote:Because my first 5mt died because I hammered it. :roll:

Well...I doubt it was power that killed it...since your car is stock
I think it was high miles.

And doug... your using an NA tranny?
~Spencer
94 Legacy Turbo (550 Robtune/ej20h v2 Sti RA drivetrain)
94 Legacy Ti Wagon (5mt ej22e)
91 rhd Legacy GT Wagon (factory 5mt, ej20g)
93 rhd Legacy GT type S2 Sedan (4eat, ej20g)
91 rhd Legacy Ti Type S 1.8
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Post by 555BCTurbo »

smh0101 wrote:
I think it was high miles.

ding ding ding ding!





And yes...Doug uses NA trannies
Nick

1987 Audi 4000CS quattro...soon to be 20VT
1994 Dodge Ram 2500 4x4 CTD, #11 plate, 30 psi, Scotty II intake, 4" exhaust
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Post by smh0101 »

Well, thats my concern. I wouldnt call 157k low miles.
~Spencer
94 Legacy Turbo (550 Robtune/ej20h v2 Sti RA drivetrain)
94 Legacy Ti Wagon (5mt ej22e)
91 rhd Legacy GT Wagon (factory 5mt, ej20g)
93 rhd Legacy GT type S2 Sedan (4eat, ej20g)
91 rhd Legacy Ti Type S 1.8
03 Lincoln LS V8 Sport
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Post by 555BCTurbo »

smh0101 wrote:Well, thats my concern. I wouldnt call 157k low miles.

Just drive it nice man...


Shift slow, no clutch dumping, etc


You don't break gears with power, you break gears with crappy shifting
Nick

1987 Audi 4000CS quattro...soon to be 20VT
1994 Dodge Ram 2500 4x4 CTD, #11 plate, 30 psi, Scotty II intake, 4" exhaust
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Post by smh0101 »

555BCTurbo wrote: You don't break gears with power, you break gears with crappy shifting
Good point.



So how much more torque will a 2.35 have?
~Spencer
94 Legacy Turbo (550 Robtune/ej20h v2 Sti RA drivetrain)
94 Legacy Ti Wagon (5mt ej22e)
91 rhd Legacy GT Wagon (factory 5mt, ej20g)
93 rhd Legacy GT type S2 Sedan (4eat, ej20g)
91 rhd Legacy Ti Type S 1.8
03 Lincoln LS V8 Sport
08 300 SRT8
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Post by 555BCTurbo »

smh0101 wrote:
555BCTurbo wrote: You don't break gears with power, you break gears with crappy shifting
Good point.



So how much more torque will a 2.35 have?

As much as it makes...


You can't really assign a specific torque value, especially with a turbocharged engine that is affected by so many factors...


Come to OTR this weekend and talk to Dave Hintz in car #207...he runs a 2.35 in it
Nick

1987 Audi 4000CS quattro...soon to be 20VT
1994 Dodge Ram 2500 4x4 CTD, #11 plate, 30 psi, Scotty II intake, 4" exhaust
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Post by smh0101 »

Done!

Well, with ej25d heads, a vf12 on 15lbs of boost?

And of course a 3in tbe and ic.

Oh and 440s and a perfect power.
~Spencer
94 Legacy Turbo (550 Robtune/ej20h v2 Sti RA drivetrain)
94 Legacy Ti Wagon (5mt ej22e)
91 rhd Legacy GT Wagon (factory 5mt, ej20g)
93 rhd Legacy GT type S2 Sedan (4eat, ej20g)
91 rhd Legacy Ti Type S 1.8
03 Lincoln LS V8 Sport
08 300 SRT8
ciper
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Post by ciper »

Quite a few people are running 2.5l STI DBW engines in cars with stock RS transmissions which are essentially identical to the NA Legacy trans (gear ratios of course are different).

There has to be some weak link in the system and many choose the clutch. You get a clutch that is just only able to hold the power you've got so that it can slip when you mess up instead of snapping teeth off gears.
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Post by smh0101 »

And I have a stage 2 clutch.
~Spencer
94 Legacy Turbo (550 Robtune/ej20h v2 Sti RA drivetrain)
94 Legacy Ti Wagon (5mt ej22e)
91 rhd Legacy GT Wagon (factory 5mt, ej20g)
93 rhd Legacy GT type S2 Sedan (4eat, ej20g)
91 rhd Legacy Ti Type S 1.8
03 Lincoln LS V8 Sport
08 300 SRT8
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Post by douglas vincent »

Don't drive like an asshat, and all "should" be fine.
Reddevil, Awaiting new heart, will it ever happen?
1990 wagon, EJ25 12.3 @ 116.5 FAST Family wagon getting new motor soon
1992 wagon, wifes daily, high compression
1992 Touring wagon, should I keep it?
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Post by BAC5.2 »

555BCTurbo wrote:You don't break gears with power, you break gears with crappy shifting
I think I've seen enough blown transmissions to know that this isn't true.

Gear ratios play a HUGE factor. If your worried, find a 4.44 Forester trans or something. It'll spin like CRAZY on the highway, but the added final drive will reduce gear breakage. It won't eliminate the possibility, but it will help

Of course not launching and not shifting really aggressively will help, but power alone is capable of removing teeth from the gears. You would be shocked at the number of "I was just rolling along and punching it in 3rd" stories I've heard over the years. Even exclusively open-track-raced cars blow transmissions and they are generally easy-shifting for the most part.

There are two schools of trans failure in high output, stock transmission cars. Those who HAVE blown a transmission, and those who WILL. Mark my words, it is only a matter of time. And it's such an inconvenient occurance. It ruins your day, makes you late for something undoubtedly important, and ultimately causes a lot of heartache.

What's the point of having the power if you can't lay it down? What an American Muscle problem to have. "How about let's go from a roll..." Half the fun of having a lot of power and AWD is to be able to come out of the hole and cross 60' in 1.4 seconds.

If you want to be safe, find a 4.44 Forester tranny or do a 6-speed swap. Not to say you won't blow up a Forester trans, but the high final drive does help prevent it.
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Post by 555BCTurbo »

I've had good luck with my 4.11 box taking a fair beating.


I should have qualified my statement Phil...I don't think at the kind of power Spencer will be making that the gears will just sheer from getting on it.
Nick

1987 Audi 4000CS quattro...soon to be 20VT
1994 Dodge Ram 2500 4x4 CTD, #11 plate, 30 psi, Scotty II intake, 4" exhaust
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Post by BAC5.2 »

Anything beyond 260 to 275lb-ft and the 3.90 box is really going to start hurting. Mine went with little more than 270lb-ft.
2009 Outback 2.5XT. 5MT. Satin White Pearl.
2009 Impreza 2.5i Premium. Blue.

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Post by 555BCTurbo »

BAC5.2 wrote:Anything beyond 260 to 275lb-ft and the 3.90 box is really going to start hurting. Mine went with little more than 270lb-ft.

Yikes!



btw: If I keep my SS, we are going to be chatting about PPG for it in a lil while
Nick

1987 Audi 4000CS quattro...soon to be 20VT
1994 Dodge Ram 2500 4x4 CTD, #11 plate, 30 psi, Scotty II intake, 4" exhaust
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Post by smh0101 »

And I'm shooting for around 300lb-ft.

And, yeah, I have 3.90.
~Spencer
94 Legacy Turbo (550 Robtune/ej20h v2 Sti RA drivetrain)
94 Legacy Ti Wagon (5mt ej22e)
91 rhd Legacy GT Wagon (factory 5mt, ej20g)
93 rhd Legacy GT type S2 Sedan (4eat, ej20g)
91 rhd Legacy Ti Type S 1.8
03 Lincoln LS V8 Sport
08 300 SRT8
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Post by 92ss satinsvoice »

555BCTurbo wrote:I don't think at the kind of power Spencer will be making that the gears will just sheer from getting on it.

LOL. shoot. give me the keys and ill break a tranny with the stock power.
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Post by 555BCTurbo »

92ss satinsvoice wrote:

LOL. shoot. give me the keys and ill break a tranny with the stock power.

The sign of a crappy driver
Nick

1987 Audi 4000CS quattro...soon to be 20VT
1994 Dodge Ram 2500 4x4 CTD, #11 plate, 30 psi, Scotty II intake, 4" exhaust
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Post by smh0101 »

Okay Mr. My Transmission is making wierd noises so I have to leave the drive early.

Geez, enough with the holier than thou I can drive better than you, your car is a POS stuff Nick.
~Spencer
94 Legacy Turbo (550 Robtune/ej20h v2 Sti RA drivetrain)
94 Legacy Ti Wagon (5mt ej22e)
91 rhd Legacy GT Wagon (factory 5mt, ej20g)
93 rhd Legacy GT type S2 Sedan (4eat, ej20g)
91 rhd Legacy Ti Type S 1.8
03 Lincoln LS V8 Sport
08 300 SRT8
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Post by 555BCTurbo »

smh0101 wrote:Okay Mr. My Transmission is making wierd noises so I have to leave the drive early.

Geez, enough with the holier than thou I can drive better than you, your car is a POS stuff Nick.

I think it just had some ice stuck places...


Man...you can't handle my drunk humor?!?! What's the deal?
Nick

1987 Audi 4000CS quattro...soon to be 20VT
1994 Dodge Ram 2500 4x4 CTD, #11 plate, 30 psi, Scotty II intake, 4" exhaust
smh0101
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Post by smh0101 »

Okay, well that makes sense on the tranny.

You constantly say that.

And then crack jokes at peoples car when they cant here you. (You know what I'm talking about). Then directing something that had no appearance as a joke towards someone... 'nuf said.

Thats not cool man.
~Spencer
94 Legacy Turbo (550 Robtune/ej20h v2 Sti RA drivetrain)
94 Legacy Ti Wagon (5mt ej22e)
91 rhd Legacy GT Wagon (factory 5mt, ej20g)
93 rhd Legacy GT type S2 Sedan (4eat, ej20g)
91 rhd Legacy Ti Type S 1.8
03 Lincoln LS V8 Sport
08 300 SRT8
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