• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-

NikwoaC's "Commitment Issues" Engine Build

  • Thread starter Thread starter NIKwoaC
  • Start date Start date Mar 12, 2011
Prev
  • 1
  • …
  • 38
  • 39
  • 40
  • 41
  • 42
Next
First Prev 40 of 42 Next Last

FastDriver

I was uncomfortably high & wearing a helmet
SN Certified Technician
Sep 5, 2001
6,068
2,671
224
Vass, NC
Mar 30, 2025
#781
  • Mar 30, 2025
  • #781
Noobz347 said:
Yeah, [they] take anybody.
Click to expand...
Reckon I'll be promoted in the Army to unemployed in the next couple years. Can't wait. What're mod duties paying, these days?
 

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor
Admin Dude
Jan 4, 1985
42,933
21,109
234
Box behind Walmart
Mar 30, 2025
#782
  • Mar 30, 2025
  • #782
FastDriver said:
Reckon I'll be promoted in the Army to unemployed in the next couple years. Can't wait. What're mod duties paying, these days?
Click to expand...

All the interwebz cookies you can handle.
 
Reactions: FastDriver

NIKwoaC

中國製造
15 Year Member
Oct 31, 2006
5,525
943
214
Chengdu Province
Mar 30, 2025
#783
  • Mar 30, 2025
  • #783
bird_dog0347 said:
Nice upgrades... I think you are misremembering what is and is not advised when it comes to the 4 link rear and binding. If you had uppers and lowers with all poly bushings that WILL cause bind on the 4 link rear. However you said you used spherical on the housing end of the uppers which eliminates the binding that would be there with poly bushings.
Click to expand...

Technically, all the pivot points in a triangulated 4-link must both pivot and twist as the suspension goes through its travel, forcing the bushings to deform somewhat. So, anywhere you have a poly or rubber bushing, you are creating some "binding" in that sense. Spherical bearings on one end of the control arm doesn't remove this reality from occurring on the other end. Although, since spherical bearings can articulate multi-axially freely (unlike a poly bushing), they don't artificially contribute to spring rate and do allow the suspension to travel more freely. Of course, you can't really run spherical bearings at both ends of a control arm- not only because it would rattle your teeth out, but also because you need something to prevent the control arm from rotating about its longitudinal axis. IMHO, the Steeda 3-piece urethane bushing is a pretty clever approach to make a poly bushing behave somewhat like a spherical bearing, while still preventing the control arm from rotating about its longitudinal axis.

To be fair, there are probably some cheaper and/or older aftermarket control arm bushing designs that probably didn't allow sufficient off-axis flex (binding), which is maybe where this urban legend came from.

If you're not already familiar, @Warhorse Racing on YouTube has a pretty comprehensive video on running Steeda control arms with all poly bushings in an autocross application. His delivery is slightly cheesy, but so am I, so I dig it.
 
Reactions: General karthief

NIKwoaC

中國製造
15 Year Member
Oct 31, 2006
5,525
943
214
Chengdu Province
Mar 31, 2025
#784
  • Mar 31, 2025
  • #784
FastDriver said:
Nice upgrades. 8.8" rears can be out of alignment from the factory, and racers will often have them straightened and then the tubes welded & braced. I wonder if there's an issue with yours. I wouldn't overthink it, unless you're getting inexplicably strange tire wear patterns.
Click to expand...
This was brought up in my discussions with Steeda. The car has never been in an accident and has never showed any symptoms of having something wrong with the rear end geometry, but I suppose it's possible. I lean toward it being more of an issue with Steeda's bulky and squared-off flange geometry, though. Their aluminum arms are larger in this area than any of their other arms.

This photo from Motor Trend (NOT mine) kind of perfectly shows the half-octagonal shape of the Steeda flange, VS the factory arm that is rounded in that area. The Steeda arm ends of being about 3/16" larger radially about the bolt CL, on top of not being rounded.



Here you can see where the interference was on my car (yes, the axle is crusty, no the rust isn't causing the interference Also, yes, I replaced that brake line.




Here's what the arm looked like after I "reshaped" it.

 
Reactions: Noobz347 and FastDriver

NIKwoaC

中國製造
15 Year Member
Oct 31, 2006
5,525
943
214
Chengdu Province
Mar 31, 2025
#785
  • Mar 31, 2025
  • #785
Monkeybutt2000 said:
WHOA! Noticed the Purdue flag in your garage. You a Boiler?
Click to expand...
Yessir. Also a past member of PAPA, if that's still a thing.
 

NIKwoaC

中國製造
15 Year Member
Oct 31, 2006
5,525
943
214
Chengdu Province
Apr 1, 2025
#786
  • Apr 1, 2025
  • #786
Anyway, this brings me to where I am today. As you guys can see from this thread, I built this engine 14 years and about 35K miles of hard use ago. It has held up (surprisingly) very well, but at this point the timing cover gasket and rear main seal have started leaving so much coolant and oil on the garage floor that I can't take it any more. Also, the leaky rear main (and my driving habits) has basically completely trashed the clutch.

It's kind of unfortunate, because I was planning on finally doing the 351 swap next year, but the I wasn't going to get another season out of this engine without changing these seals.

Also, my T5 died. For the 4th time. So, I'm going to use this opportunity to swap in the TKO that I built something like 5-6 years ago. It's a 500 that I bought used, probably around 2015, and fully rebuilt with carbon fiber blocker rings and a modified selector finger. That was back when I did all my transmission business with Astro Performance, which, as I understand it, has since closed their doors. I'm pretty sure I have photos of the full rebuild process around somewhere, but until I find them please enjoy this after photo of the TKO on my workbench.

 
Reactions: hoopty5.0, nickyb, General karthief and 1 other person

limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
5,463
2,891
173
Florida
Apr 1, 2025
#787
  • Apr 1, 2025
  • #787
Sell the TKO and buy a TKX
 

2000xp8

SN Certified Technician
Aug 8, 2003
8,016
1,613
194
NJ
Apr 1, 2025
#788
  • Apr 1, 2025
  • #788
limp said:
Sell the TKO and buy a TKX
Click to expand...
Senseless advice.
There is always something better out there and if his engine is NA he's not going to break a TKO.
Be no different than telling a guy with a TKX to buy a t56 magnum.
 
Reactions: hoopty5.0 and RaggedGT

bird_dog0347

still married haven't seen testicles in years
15 Year Member
Jun 7, 2012
2,298
2,025
174
Little Elm, TX
Apr 1, 2025
#789
  • Apr 1, 2025
  • #789
2000xp8 said:
Senseless advice.
There is always something better out there and if his engine is NA he's not going to break a TKO.
Be no different than telling a guy with a TKX to buy a t56 magnum.
Click to expand...
Gotta sell that magnum and get the new Tremec DCT they are about to be selling.
 

TOOLOW91

If you're the village idiot what's that make me?
20+ Year Stangneter
Nov 29, 1999
8,481
8,677
234
S.I.NY
Apr 1, 2025
#790
  • Apr 1, 2025
  • #790
2000xp8 said:
Senseless advice.
There is always something better out there and if his engine is NA he's not going to break a TKO.
Be no different than telling a guy with a TKX to buy a t56 magnum.
Click to expand...
While I’d usually agree , the tko will never shift like a tkx. I had a 600 with all the upgrades and it still shifted horrible compared to a t5 or 56 at the time.

After installing a tkx in a customers car
I’m a firm believer in it. It’s the closest thing to shifting as smooth as a t5 with the tko strength now.
 
Reactions: limp

NIKwoaC

中國製造
15 Year Member
Oct 31, 2006
5,525
943
214
Chengdu Province
Apr 1, 2025
#791
  • Apr 1, 2025
  • #791
As much as I'd like to have the new TKX, I've got too many hours in this TKO to not at least give it a try. Plus, I've spent all the money that I care to spend on the car this year.
 
Reactions: TOOLOW91 and limp

95BlueStallion

My assy trans to myself
15 Year Member
Feb 22, 2007
5,125
3,091
214
Cedar Rapids, Iowa
Apr 1, 2025
#792
  • Apr 1, 2025
  • #792
NIKwoaC said:
As much as I'd like to have the new TKX, I've got too many hours in this TKO to not at least give it a try. Plus, I've spent all the money that I care to spend on the car this year.
Click to expand...
Key words are "care to." Doesn't mean you can't/won't!
 
Reactions: NIKwoaC

2000xp8

SN Certified Technician
Aug 8, 2003
8,016
1,613
194
NJ
Apr 1, 2025
#793
  • Apr 1, 2025
  • #793
TOOLOW91 said:
While I’d usually agree , the tko will never shift like a tkx. I had a 600 with all the upgrades and it still shifted horrible compared to a t5 or 56 at the time.

After installing a tkx in a customers car
I’m a firm believer in it. It’s the closest thing to shifting as smooth as a t5 with the tko strength now.
Click to expand...
I don't doubt the smoothness.
But if you are going from one directly to another, obviously you may notice.
I went from a T5z to the TKO and it never really bothered me.
Besides, if i'm selling my TKO, it's for a t56 magnum at that point.

Now if you had nothing and starting new, that would change things.
In that case you buy the best you can afford.
But he has the trans and it's rebuilt. The secondary market most likely wouldn't be all that friendly to sell one and buy the other.

I don't think the debate is about which trans is better, it's the TKX, but as i said, there is always something better you can buy.
 

FastDriver

I was uncomfortably high & wearing a helmet
SN Certified Technician
Sep 5, 2001
6,068
2,671
224
Vass, NC
Apr 1, 2025
#794
  • Apr 1, 2025
  • #794
Nic, when you blew your T5s, were you always on a DR or stickier tire? What clutch? Do you have any quarter mile times since the old days?

After I blew my first T5 at only ~320 rwhp, I went to TKOs (2x 3550s and 1x TKO), and subsequently to T56s. I agree with the comments that I never liked the way they shifted, whereas the T56s have always shifted very well. My current daily driver, Black Jack, was on a T5 making ~270 rwhp and I beat the utter dog out of it, getting a best of 12.63@108mph. The reason I believe that trans lived was because I kept the car on 225/50/16 all-seasons with no more aggressive than a King Cobra clutch. It's still on my garage floor waiting to go back into Black Jack before I eventually sell the car (if ever).

I'm just curious if you ever experienced failure while making the clutch and tires 'the fuse'? FWIW, I am an advocate, in a street fox with a short rear gear, of the wide-ratio T56s (2.95 1st, .5 6th), or T56 Magnums. I hear ya on not wanting to spend more. I guess the important thing is to stop snapping transmissions for the time being, and hopefully you get along with the way yours shifts. With the upgrades, maybe it'll be a better experience than any of mine were.
 

limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
5,463
2,891
173
Florida
Apr 1, 2025
#795
  • Apr 1, 2025
  • #795
My comment was more about the fit of the TKX in cars... The TKO requires some cutting on the tunnel on some cars due to its size, and there can be some driveline alignment problems again due to its size.... NOT sure if the Fox bodies have this but Mopars and Camaro's do.....
As to the Magnum 6 speed, I see no reason for a double overdrive my self......
LOTS of complaints with TKO's... Its not made anymore for a reason
 

NIKwoaC

中國製造
15 Year Member
Oct 31, 2006
5,525
943
214
Chengdu Province
Apr 1, 2025
#796
  • Apr 1, 2025
  • #796
FastDriver said:
Nic, when you blew your T5s, were you always on a DR or stickier tire? What clutch? Do you have any quarter mile times since the old days?

After I blew my first T5 at only ~320 rwhp, I went to TKOs (2x 3550s and 1x TKO), and subsequently to T56s. I agree with the comments that I never liked the way they shifted, whereas the T56s have always shifted very well. My current daily driver, Black Jack, was on a T5 making ~270 rwhp and I beat the utter dog out of it, getting a best of 12.63@108mph. The reason I believe that trans lived was because I kept the car on 225/50/16 all-seasons with no more aggressive than a King Cobra clutch. It's still on my garage floor waiting to go back into Black Jack before I eventually sell the car (if ever).

I'm just curious if you ever experienced failure while making the clutch and tires 'the fuse'? FWIW, I am an advocate, in a street fox with a short rear gear, of the wide-ratio T56s (2.95 1st, .5 6th), or T56 Magnums. I hear ya on not wanting to spend more. I guess the important thing is to stop snapping transmissions for the time being, and hopefully you get along with the way yours shifts. With the upgrades, maybe it'll be a better experience than any of mine were.
Click to expand...

The car has only ever been on summer-type street tires, never been flat-foot shifted, and no, I haven't been to the drag strip since I clocked that 12.9 run a million years ago. To be fair though, I only ever sheared teeth off gears once. 2 of the 4 failures were related to the synchro assemblies. While I haven't pulled it apart yet, this last failure was a weird one. It never made any noise, the lever just doesn't want to move. I imagine something in the internal gear selector assembly is either galling or a detent somewhere came loose and is seized.

This trans also has a cracked case from an over-tightened drain plug, so it's just very tired and ready for retirement.
 
Reactions: FastDriver and General karthief

gkomo

now i can hopefully expect to receive the shaft
Aug 2, 2024
2,133
1,372
133
San Diego, CA
Apr 1, 2025
#797
  • Apr 1, 2025
  • #797
Off topic but since you mentioned Astro Performance not being in business anymore. I saw GForce sells a rebuild kit for the T5's thats supposed to handle quite a bit of power. I think its for $1,900? Is that kit any good? Just thinking out loud, i don't have a need to upgrade my transmission or anything at this time.
 

limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
5,463
2,891
173
Florida
Apr 1, 2025
#798
  • Apr 1, 2025
  • #798
gkomo said:
Off topic but since you mentioned Astro Performance not being in business anymore. I saw GForce sells a rebuild kit for the T5's thats supposed to handle quite a bit of power. I think its for $1,900? Is that kit any good? Just thinking out loud, i don't have a need to upgrade my transmission or anything at this time.
Click to expand...
Much better options than sinking $1,900 into a T5
 

NIKwoaC

中國製造
15 Year Member
Oct 31, 2006
5,525
943
214
Chengdu Province
Apr 1, 2025
#799
  • Apr 1, 2025
  • #799
gkomo said:
Off topic but since you mentioned Astro Performance not being in business anymore. I saw GForce sells a rebuild kit for the T5's thats supposed to handle quite a bit of power. I think its for $1,900? Is that kit any good? Just thinking out loud, i don't have a need to upgrade my transmission or anything at this time.
Click to expand...

If I were to do it over again, I'd probably either pony up for a TKX or try to find a good deal on a used T56. I probably wouldn't go with a T5 platform.
 

NIKwoaC

中國製造
15 Year Member
Oct 31, 2006
5,525
943
214
Chengdu Province
Apr 1, 2025
#800
  • Apr 1, 2025
  • #800
Here are some shots of the teardown.

Oil soaked bellhousing.



Roasted flywheel.



The pressure plate looks pretty rough too. I'm going to have the flywheel resurfaced and just try to clean up the pressure plate and squeeze another season or two out of it, with a new friction disc. The old friction disc was almost down to the rivets. This is a Ram HDX, BTW.

 
Prev
  • 1
  • …
  • 38
  • 39
  • 40
  • 41
  • 42
Next
First Prev 40 of 42 Next Last
You must log in or register to reply here.

Similar threads

S
Block questions
  • s_vargas54
  • Jan 25, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2
Replies
21
Views
650
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Feb 8, 2026
Trogdor
Fox Xtremely high fuel consumption
  • PonyGTrider
  • Apr 11, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 9 10 11
Replies
213
Views
3K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- May 9, 2026
PonyGTrider
A
Help ID - Turbo GT, SVO differences
  • aldoelmalo
  • Jun 2, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
0
Views
58
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jun 2, 2026
aldoelmalo
A
A
Discussion on mild budget build/ top end
  • Acesario
  • Feb 21, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2
Replies
20
Views
660
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Feb 23, 2026
General karthief
A
Resolved Electrical Help Please
  • Alabama
  • Jan 22, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
2
Views
251
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jan 22, 2026
AeroCoupe
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?