[C MY 4D]

So today I got alot of the small details on the car fixed..... Got the n20 controller mounted with a custom cover were the radio went, welds polished up, new race seat installed and a few other small things. All in all I was pretty happy with the car.

So during the cruise between hangouts I decide to race myself to test out the new carb setup. I get into it in 3rd and powershifted into 4th. 4th hit hard as hell then it just fell on its face. Motor is still running... I don't hear any carnage. is going on? I start feeling around for gears in the Tremec 3550 , all the shift forks are still attached. So then I roll to a complete stop a mile and a half down the road and start looking to see if any of the gears are still together...... Nothing

I believe I just sheared my first hardened input shaft.
I will find out for sure tomorrow. I was planning on pulling everything anyways to do a little maintenance to the bottom end. I'll post pics of the carnage tomorrow.

[neverfastenough1]

Man thats gotta suck. Like to see those pics. When you started, I was putting 351+t5=duh, but didn't know it was a 3550. It was a built tranny? If it was a standard 3550 it wasn't built for too much more power than the t5. I think 350 ft lbs for a standrard one. TKO 3550 would be somewhere in the 400's.

[C MY 4D]

Originally Posted by neverfastenough1 Man thats gotta suck. Like to see those pics. When you started, I was putting 351+t5=duh, but didn't know it was a 3550. It was a built tranny? If it was a standard 3550 it wasn't built for too much more power than the t5. I think 350 ft lbs for a standrard one. TKO 3550 would be somewhere in the 400's.

the 3550, TKO I and TKO II are exactly the same except for the input and output shafts.... As for the TKO 500 and 600 those are the same as the older TKO's except for a different case and different gear material. Tremec recently acquired the rights to a patented material or forging process that made those gears capable of holding much more power......

Currently the input shaft is a 10 spline and if everything works out I will be going to 26 spline with a new spec 3 clutch. If not i'll just throw another 10 spline in it from an tranny.

[neverfastenough1]

Hope that shaft works for you. You been talking to D&D or someone? At least it sounds like you got some power coming from the motor.

[C MY 4D]

Nah I haven't called D&D yet.... I have just done a good amount of research on them in the last few years.

[C MY 4D]

yep found the problem.....

[Iownastang]

Man that sucks,how much are you sprayin

[C MY 4D]

nothing..... that was the motor. I haven't even sprayed this one yet.

[Iownastang]

I would of hated to have seen what it would have done on spray

[Black Five 0h]

that looks like you brought it up to 5000rpms and dumped the clutch, i feel remorse for that input shaft.

[neverfastenough1]

Thats cool. I hope my motor can do that when I get it built. Well, maybe just once. That might get expensive. D&D has the shaft fro like 150-160. They should be able to tell you if the 26 spline will work.

[C MY 4D]

Originally Posted by neverfastenough1 Thats cool. I hope my motor can do that when I get it built. Well, maybe just once. That might get expensive. D&D has the shaft fro like 150-160. They should be able to tell you if the 26 spline will work.

I know it will work...... its just will my wallet agree. If i upgrade to 26 I have to buy another spec clutch.

[neverfastenough1]

I know how that goes.

[C MY 4D]

Originally Posted by neverfastenough1 I know how that goes.

It wouldn't be so bad if i didn't tear the motor down today to rering it..... Now I have to figure out why the rings with only 3000 miles prematurely failed. I guess its time for a crash course in piston rings 101.

[C MY 4D]

Block is honed and ready for reassembly....... I'll start throwing it back together tomorrow and post some pics up. Now its time to order an input shaft.

[neverfastenough1]

Did you figure out what caused the ring failure?

[C MY 4D]

Originally Posted by neverfastenough1 Did you figure out what caused the ring failure?

It doesn't look like the cyl walls were honed enough and the rings never seated..... IDK we'll see.

[C MY 4D]

Well I got a good deal on an Anderson High rev clutch so i'm gonna give that a try with a new input shaft coming in from D&D.

The motor should start going back together today, hopefully it will be back on the road by Saturday.

More pics coming soon......

[Iownastang]

Gotta let us know how she runs

[C MY 4D]

Well the motor is together....... I started on the tranny tonight but found that the input shaft seal that D&D sent was the wrong one..... hopefully this won't put me down for the whole weekend. It may be together tomorrow......