TKO 600 behide built 250 in-line?

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69stang_250
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TKO 600 behide built 250 in-line?

Post #1 by 69stang_250 » Thu May 31, 2018 9:48 am

Hey guys,

So I know the TKO is over kill for my car in its current state, but here is what I am thinking.

The 2.95 first in the T5Z would work great with the 3.80 gears I have out back, but the price isn’t too far off with the TKO 600 with 2.87 1st gear. And .64 5th.

I know the TKO is heavier and that cost power, but how much?

The other though in the back of my mind is that if or when the 250 is gone a 331 clevor will be going in.

With those things, will the TKO hurt performance or do you guys think it will help? Just grabbing for opinions.

Thanks you guys!
69 mustang coupe, 250 .030 over, forged pistons, port & polished CI AL head 54cc's 10.25CR, 280/280 Clay smith cam 1 degree advanced, 1.6 adjustable rockers,
Re curved DSII, MSD AL6, CI Intake, FITech 400HP fuel injection. T5 trans, 8" rearend w/3.80 gears, Eaton trutrack.

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62Cometman
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Location: Lincoln, NE

Re: TKO 600 behide built 250 in-line?

Post #2 by 62Cometman » Thu May 31, 2018 6:00 pm

while the TKO is a heavier built unit i dont think the parasitic draw would be past the rule of thumb 15%, as for everything else yes i would agree that price points are too far off but usally with the TZ kits you get a full install kit inluding mounts and cables and everything needed to make it happen, with the TKO you just get the transmission and yes you can do a front shift conversion but that costs even more money and then you still have to make a mount for it and figure everything else out. If you know for sure that you will be doing a v8 swap in the future then it wouldnt hurt to be already setup for it, also a nicely built 250 can possibly tear up a tz trans as even MDL says theyre only rated for 330 ft lbs of torque
1962 Mercury Comet 170 ci, Dagenham Trans, 2.83:1 7.25 rear.
She ain't fast but she's fun. 8)

69stang_250
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Re: TKO 600 behide built 250 in-line?

Post #3 by 69stang_250 » Sat Jun 02, 2018 7:33 am

Well down the road I will for sure be putting in a clevor in and that I why I am considering doing this.
I know when you count in the bellhousing, clutch, cross member, and yoke it will be close to $4,000 compared to the T5Z, but I’m sure the 250 wont get any where close to hurting that trans.
A few advantages I am looking at with the trans is the 2.87 first gear, the .64 5th for cruising, able to run slicks and not worry about the trans too much, able to run a more aggressive clutch, and as mentioned An much more powerful engine install way later down the road.

Right now the 4cyl t5 I have in is pretty nice in 2nd,3rd, and 4th. Pulls hard in each, but the 3.97 first is for sure slows me down and it is very hard to keep traction. 5th is not bad, but .79 has the rpms up a little too much for my liking.

How some questions for you guys.

What clutch would yall run with a two 600? How aggressive for a daily/strip strip car?

What do you guys think about the clutch cable vs the hydraulic clutch setups?

Would you guys change to a steel flywheel? Or do you think the stock is fine?

Any other advise would be much appreciated.
69 mustang coupe, 250 .030 over, forged pistons, port & polished CI AL head 54cc's 10.25CR, 280/280 Clay smith cam 1 degree advanced, 1.6 adjustable rockers,
Re curved DSII, MSD AL6, CI Intake, FITech 400HP fuel injection. T5 trans, 8" rearend w/3.80 gears, Eaton trutrack.

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62Cometman
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Location: Lincoln, NE

Re: TKO 600 behide built 250 in-line?

Post #4 by 62Cometman » Thu Jun 07, 2018 10:01 am

im sorry im not sure i understand your first question? but as for the cable vs hydraulic i will always suggest hydraulic ive heard and seen too many cable systems that dont feel or act right the cables stretch and i personally just dont like them, the hydraulic units are definitely the way to go hence why everyone uses them nowadays. For a high output v8 it cant hurt to but in a steel flywheel but the cast units are still perfectly adequate. A general idea for a good performance clutch that isnt a bear to drive on the street would be a Kevlar lined stock appearing unit the big increase for the HP is more likely the pressure plate a high clamping force will be the key there McLeod and Ram both offer these types of clutch kits for the Ford Applications usually rated into 550 HP ranges
1962 Mercury Comet 170 ci, Dagenham Trans, 2.83:1 7.25 rear.
She ain't fast but she's fun. 8)

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