choosing a clutch

P51MustangFreak · Jun 12, 2011

first off i would like to say hello to everyone on the forum. i planing a new set up a stock 302 motor with a on3performance turbo kit including 44# injectors 225 wallpro fuel pump oil filter relocate kit on3performance maf sensor and there ballpark tune. my hopes are to have a fun street car that will retain a/c and stock drivablity what clutch will offer holding power but not leave my legs sore in traffic but not cost to much thanks in advance

FastDriver · Jun 12, 2011

I recommend the Spec Stage 3+. I run it on my 762rwhp turbo'd 331. It's stiffer than stock, but it's not bad at all and is priced comparably with all of the other aftermarket clutches.

If your clutch is overly stiff, make sure you're using an OEM cable, and buy a UPR adjustable clutch quadrant kit. I went from clutch that was so tough that it made me hate driving the car to a clutch that felt comparable to my honda accord, and I loved driving the car again.

Chris

P51MustangFreak · Jun 12, 2011

thank you for your advice its my first stick shift build just want to do it right so why is it important to use stock cable how long can i expect the stock t5 to last before she blows up im shooting for 450 to the wheels i have a 5500 doller budget so im trying to strech it out as long as posible

joe

Rick 91GT · Jun 12, 2011

Id go stage 2 or stage 2+, the stage 3 can be a little too aggresive especially on the stock t5.

The stock t5 is hit or miss with the power they hold, you can break them stock or have them hold power. They typically break when the car hooks hard or powershifted in a high hp or tq car. Id put a tko600 on your future list.

FastDriver · Jun 12, 2011

how long can i expect the stock t5 to last before she blows up im shooting for 450 to the wheels

5 seconds That much power, and more to the point the torque you'll make with turbos, can snap the T5 like a twig. Remember T5s were only rated to 275 or 300 lb-ft of torque in the foxes depending on the year. If you baby it, you might make it 10 seconds In reality, I've seen guys do really well with the T5 even at the power level you're talking about, but consider yourself on borrowed time. Easy shifts and street tires are the T5's friend.

i have a 5500 doller budget so im trying to strech it out as long as posible

You will use that up surprisingly quickly. If you have any fabrication skills at all, build your own kit and use some inverted shortie headers. Might I recommend the Master Power T70 as one of the most cost-efficient turbos for a 5.0 motor. They're capable of making that powerlevel without breaking a sweat.

P51MustangFreak said:
why is it important to use stock cable

It and the steeda adjustable are the only cables that have ever worked for me. The others stretched and/or became nightmarishly hard to depress. I couldn't understand what was going on, and was awestruck at how much more I appreciated my car again after switching back to OEM. Trust me on this one, do not skimp on the cable. If you need a longer cable for routing purposes with your turbo system, use an SN95 OEM cable. Just cut off the plastic peice that goes to the firewall and it works on the fox like a charm. It also allows a more gradual bend from the firewall downward and back to the bellhousing.

FastDriver · Jun 12, 2011

Rick 91GT said:
Id go stage 2 or stage 2+, the stage 3 can be a little too aggresive especially on the stock t5.

The stock t5 is hit or miss with the power they hold, you can break them stock or have them hold power. They typically break when the car hooks hard or powershifted in a high hp or tq car. Id put a tko600 on your future list.

I didn't think about that, Rick. Spec 3s are also a lot more touchy on engagement/disengagement. I was just worried about the amount of torque this guy is likely to make. I never had to worry about a T5 once I was turbod.

P51MustangFreak · Jun 12, 2011

i was looking at the tko600 but its so expensive im 18 and i could buy it but it would defete my purpose of the build i set my budget to 5500 and i cant afford the trans and stay on budget do they sell a kit to upgrade the t5

FastDriver · Jun 12, 2011

I really think building a T5 is the wrong way to go, brother. There are companies that will build one for you, but you won't save much, if any, money and you'll end up with a much weaker tranny. In my opinion, if you can't afford to build the drivetrain, you can't afford to build the motor, man. Your car will quickly become a nightmare if you build a motor like this without upgrading the rear and tranny. This hobby is retardedly expensive.

Chris

P51MustangFreak · Jun 12, 2011

trannys the only part not upgraded i got a rear with 33 spline axles and a trac lock diff with 373 it was a freebie i just want the 5 speed so bad i heard the tko doesnt shift as good

FastDriver · Jun 12, 2011

Nonsense. The TKO shifts better.

TRICKYGT · Jun 12, 2011

I just got my Spec 2 and hopefully its going in on tuesday. Went with flywheel and steeda adjustable. Will let you know how it goes.

P51MustangFreak · Jun 12, 2011

playing with numbers now trying to get a rough idea on cost i want a bad ass street car i love mustangs i have a few now i guess ill have to say good buy to one again anyone kno a place i can pick up a kit to swap the tko in place

281pony · Jun 12, 2011

sell your t5 before it breaks locally on craigslist and get a tremec 3550.

its inbetween a t5 and tko600 spec. rated for 450 torque. handles what you need for power. they only cost about 1200 for a trans with bellhousing and accessories.

i agree with rick on the clutch and t5 theory. i know a few people with stock power levels that mangled t5's FAST. i beat my t5 hard with 400whp for about 6 months with lots of abuse before that @ 300whp. it was great up til i told it.

before you break it potentially, get some $$ out of it and grab a tremec 3550.

P51MustangFreak · Jun 12, 2011

i dont plan on going any faster that 450 -500 hp on the street im lucky if it will hook with that and if it gets to the point where i need that much power it wont be much of a decent budget build thanks for the input

FastDriver · Jun 12, 2011

what he said.

P51MustangFreak · Jun 12, 2011

what parts are needed for that swap can u use a stock bellhosing or driveshaft yoke

FastDriver · Jun 13, 2011

I believe the 3550 has a stock-type 10-spline input shaft. The TKO has a 26-spline shaft. Yes, you need a different bellhousing and driveshaft yoke. You either need or should replace the following parts: clutch fork, throwout bearing, pilot bearing, shifter (unless you want to use the crap tremec shifter - T5 shifters don't fit), and trans-mount. You can reuse the stock mount but you'll have to modify it a little.

FastDriver · Jun 13, 2011

Oh... and I think a speedo gear because the number of teeth goes from 7 to 8 or something like that... memory's a little fuzzy.

Rick 91GT · Jun 13, 2011

With the power you plan I would go with a steel bell only....Quicktime makes the best one out in my opinion, lots of clearance. You could buy their non sfi one and save a little money.

3550 is a 10 spline, 600 is 26 spline input. Youll also need a driveshaft yoke for the tko.

FastDriver · Jun 13, 2011

Is there an echo in here?

choosing a clutch

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