Build Thread Want To Blow 5 Years And $50k On A Foxbody? Step By Step Instructions Inside!

[GroverDill]

As much as I don't care for the spec stage 3+ in my car it has help the power to the tune of the "fridge dyno" run of 954 rwhp.

Sucks that you killed that twin disk already.

Keep at it man, your car is flat awesome.

 

[90lxcoupe]

Stick with a dual disc, do you know how much base pressure the clutch has right now?

 

[RacEoHolic330]

Stick with a dual disc, do you know how much base pressure the clutch has right now?

I believe I recall the guy telling me the pressure plate is 1700 pounds.

 

[90lxcoupe]

Got these pictures from Clutch Dynamics today. The twin disc is shipping tomorrow.

Went back and dug up the clutch post, you could go a couple ways with it, either more aggressive disc material to replace the organic disc with and the same base pressure, or jack the base pressure up and keep the forgiving disc. Since you are not going to be drag racing or powershifting the car, id say stick with the organic material, and go up on the base pressure. I think what you had shows the guy who you bought the clutch from put some thought into your combination and didnt give you something too aggressive. It's better to creep up on the clutch and let it slip on you than be too aggressive and let the power destroy something else on the driveline. Id drive it and see if it slips when it isnt on the dyno.

 

[RacEoHolic330]

Went back and dug up the clutch post, you could go a couple ways with it, either more aggressive disc material to replace the organic disc with and the same base pressure, or jack the base pressure up and keep the forgiving disc. Since you are not going to be drag racing or powershifting the car, id say stick with the organic material, and go up on the base pressure. I think what you had shows the guy who you bought the clutch from put some thought into your combination and didnt give you something too aggressive. It's better to creep up on the clutch and let it slip on you than be too aggressive and let the power destroy something else on the driveline. Id drive it and see if it slips when it isnt on the dyno.

I took the car for a spin last night. The clutch was actually chattering a bit and it's never done that before. I wasn't able to replicate any kind of decent load on the drive train because the roads are pretty cold around here now. As soon as the boost stated coming on, I was spinning and hitting redline. I'm going to pull the trans and the clutch to see what everything looks like. Increasing the pressure plate pressure is a good idea. Once I get it apart, I'm going to give clutch dynamics a call and see what he recommends.

I wish I took a picture of the dyno graph. The clutch seemed to hold up until the 650ft lb mark. That's where the torque curve leveled out and then got wavy.

 

[90lxcoupe]

I could definitely hear it slipping on the dyno, it wasnt terrible though, it was trying to hold, when you really drive thru it, the motor will be on the limiter before you can realize what is happening. With your combination, the dyno is going to put way more of a load on it than you ever will on the street.

 

[RacEoHolic330]

You're definitely right about that. I still want the clutch to hold on the dyno though.

Now that I think about it, I never broke the clutch in. It was literally brand new the first time it went on the dyno a few months ago. There was clutch dust all over the car after that dyno session and I just figured that was from the clutch breaking in on the dyno. Maybe that was not a good thing and the clutch was doomed from the beginning. I guess I'll know when I drop the trans.

 

[RacEoHolic330]

Dropped the transmission today and pulled the clutch out. When I unbolted the trans from the bellhousing I saw oil weeping down the face of the bellhousing. Not purple transmission oil, not motor oil, but an oil that didn't really smell like anything.

I get the trans out of the way and start poking around the bellhousing with a flashlight. Staring me in the face is a TOB that is soaked in its own grease. The bellhousing comes off and the inside is sparkling with clutch material. I wipe a rag around the inside of the bellhousing and it's slightly wet with a mix of oil and clutch dust.

I start taking apart the clutch and the pressure plate has a nice film of oil around the inside lip. It also has a beautiful collection of hot spots. The floating plate looks just as colorful.

Here are some pictures of everything.

It's my understanding that the TOB is meant for constant velocity, so there should be some preload on the fingers of the pressure plate. I think my issue is that there wasn't enough preload and the TOB was barely coming in contact with the fingers, which created excessive heat turning the grease into oil that scattered all over everything. Not good, as you can see.

The transmission is fine. No issues there. In going to call clutch dynamics this week and see what I can salvage. I'm sure the clutch discs are wall ornaments at this point, but hopefully the pressure plate, floater, and flywheel can be turned and used again. I'm also going to be swapping in a T56 Magnum over the winter, so the modified TKO will be up for grabs. Tell yo friends! It's purdy.

 

[89oem]

Love my T56 magnum, wide ratio with 4.10 are perfect for the street! I was nervous about the 4.10's but turns out its an awesome ratio 2.97 1st and .50 6th. Super fun and not too much shifting in town if you know what I mean - and perfect on the highway

American Powertrain will also custom mix and match gears between the narrow 2.66 and wide 2.97 if you desire too. (I stayed with stock wide ratio)

In case you havent seen it, Gear Ratio Calculator

Sorry about the TOB, hopefully its just surface glazing and you're be able to just turn em ...

 

[RacEoHolic330]

Love my T56 magnum, wide ratio with 4.10 are perfect for the street! I was nervous about the 4.10's but turns out its an awesome ratio 2.97 1st and .50 6th. Super fun and not too much shifting in town if you know what I mean - and perfect on the highway

American Powertrain will also custom mix and match gears between the narrow 2.66 and wide 2.97 if you desire too. (I stayed with stock wide ratio)

In case you havent seen it, Gear Ratio Calculator

Sorry about the TOB, hopefully its just surface glazing and you're be able to just turn em ...

Glad you like yours. I haven't talked to anyone that doesn't love it.

I actually already bought a 2.66 ratio trans. Because of my 3.27 rear end gears, I was going back and forth between wide and close ratios, but it seems many of the turbo guys prefer the short ratio even with the tall rear gears. If I dragged the car, I probably would have opted for the 2.97, but on the street I think I'll like the taller first gear. With the 3.27 first in the TKO 500 now, first gear is useless as soon as the boost comes on.

 

[89oem]

Makes sense, and the coyote loves those upper rpm bands so I can wind it out further I guess. With 3.27 Id of gone 2.66 too.

 

[Noobz347]

I'm eyeballing that tranny. Definitely tough enough for my build along with a hefty safety margin. I'm drooling here...

We def have to talk.

Anyone know any good marriage counselors? Do they come with divorce lawyers or are those separate? Should be a package deal. Think I'll start a service like Uber and call it F....

 

[90lxcoupe]

What bellhousing is that? I may be interested if it doesnt sell with the trans...

 

[RacEoHolic330]

What bellhousing is that? I may be interested if it doesnt sell with the trans...

That would be a Lakewood bell.

 

[TOOLOW91]

That would be a Lakewood bell.

If he doesn't want it let me know as second dibs after Jeff . This is something I want to add over the winter . Wondering how bad the install will be with long tubes . Most guys were saying this one wasn't as bad as the old red lakewoods .


Sent from my iPhone using my fingers while my auto correct makes me seem illiterate

 

[Chuckman]

In for results when you get the 6-speed in. I've been debating what to do about my pos tko, and completely overlooked the magnum just because in the description i see everywhere it mentions "features of the tko." googled it after you mentioned it, and sounds like a great way to go if i want a syncro'd trans (as long as it can actually shift cleanly over 6k rpm anyway)

 

[RacEoHolic330]

If he doesn't want it let me know as second dibs after Jeff . This is something I want to add over the winter . Wondering how bad the install will be with long tubes . Most guys were saying this one wasn't as bad as the old red lakewoods .


Sent from my iPhone using my fingers while my auto correct makes me seem illiterate

This one is actually a red Lakewood bell. It's just wearing fancy black powder lipstick.

 

[RacEoHolic330]

In for results when you get the 6-speed in. I've been debating what to do about my pos tko, and completely overlooked the magnum just because in the description i see everywhere it mentions "features of the tko." googled it after you mentioned it, and sounds like a great way to go if i want a syncro'd trans (as long as it can actually shift cleanly over 6k rpm anyway)

I've heard multiple people say they have shifted north of 6500rpm without issues. I've always liked my TKO 500, but I'm looking forward to some different gear ratios.

 

[89oem]

In for results when you get the 6-speed in. I've been debating what to do about my pos tko, and completely overlooked the magnum just because in the description i see everywhere it mentions "features of the tko." googled it after you mentioned it, and sounds like a great way to go if i want a syncro'd trans (as long as it can actually shift cleanly over 6k rpm anyway)

Shifts clean anywhere in the power band,

 

[TOOLOW91]

This one is actually a red Lakewood bell. It's just wearing fancy black powder lipstick.

Lol keep me in mind either way


Sent from my iPhone using my fingers while my auto correct makes me seem illiterate