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Spec stage 3+ or stage 5 clutch
#1

Anyone have experience with these two clutches? How are they for street driving? Planning to use the stock flywheel. My new stage 3 is slipping, so I'm looking at either of these two. The stage 5 is rated for 599/tq and is cheaper than the 3+ which is rated for 525/tq.
88 TC 2.5 5spd~money pit
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#2

I used the Stage 3+ clutch in my Turbo Coupe. Setup at the time was a V8 T5 with 4.10 gears. Motor made around 400 HP and 430 lbft of torque to the wheels. It started to slip on the dyno around those numbers. I believe Boport just ran this clutch and he got about 450 HP to the wheels and experienced some slip as well. With that said the advertised rating is about right.

My experience with it on my somewhat heavy TC was that it was not great in stop and go situations. I had to slip the clutch to get the car moving. So much so that ai pulled the 3.73’s and installed 4.10,s thinking it was a gearing issues. I recently did a transmission swap and went the rout of a V8 style clutch flywheel. This setup was significantly better than the smaller 4cylinder Spec 3+. Clutch engagement is much better. Hope that helps.
417 RWHP & 378 lbft
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#3

Go with the stage 5 if you are looking to make near 450 or above to the wheels. In my experience the stage 3 has held up to 430ishwhp, the 3+ 450whp, and the 5 I know can go past 500whp. I'll be finding out soon the limits of the stage 5.
www.bo-port.com

1985 SVO 511rwhp stock shortblock stage 3 iron head/manifold @28psi boost.

email me boportservice@yahoo.com
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#4

Swap to a V8 clutch and open up huge options that don’t break everything behind the clutch.
84 Capri RS Turbo
1/8th 6.29@110, 1/4 - 9.87@137
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#5

What Bo said, stinger site has nice write up on the clutches etc.

Note - I too went to the V8 clutch (have not tested it as yet as I am still waiting on my tran to be fixed by the tran shop). The two largest ticket item is the 2.3 to 5.0 Flywheel (~ $350) and the 2.3 to 5.0 Crane adapter (~$200) those two parts will run you about $550 not "cheap". After that the clutches for the 5.0 are cheaper than the 2.3 and you will have a wide range of option. Note I had bought my 2.3 to 5.0 adapter, and the bell housing for the 5.0 etc. from about 2013 so it has been sitting in my garage forever.

My 2.3 clutch went and I had to replace the clutch anyway so for me going to the V8 was ~ $280 difference after considering the cost to resurface flywheel. I went with the 2+ V8 clutch
88XR4TI:T67/T4 Turbo,85lb inj,PIMPV1.3,LS2-Coils,255LPH,3" exh, Stg4 Head, BoPort Header, Bob's Inline, Cus.body kit, 16" Rims, Supra 3.73 LSD, Rasp.PI3 dash
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