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The mkiv Supra Owners Club

Acting Strange????


djskeme

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Hi guys

 

Recently my TT has been acting a bit weird.

 

Its a J-spec L reg 6 speed twin turbo.

 

I have noticed that when accelerating in 3rd gear, the first turbo seems to spool up really quick, but no power seems to come in then all of a sudden it does (bit like a kick down) where you get the revs but nothing happens then suddenly does.

 

the second turbo comes in ok...although sometimes before 4k rpm, sometimes well after???

 

I get the resonating sound from the first turbo and have since putting a apexi induction kit on....but it has only just starting acting like this.

 

SOmething else ive noticed, is whne you floor it in 4th, 5th or 6th, the revs go up to about 3k rpm, and drop, even though your foot is flat down, then creep up, and then drop??? but speed continues?

 

Boost is as its should be around 0.7 then 0.9 on full tt boost.

 

No mods apart from air filter.

 

Could my clutch be slipping?

Could my first turbo be going???

 

Any helps great! :)

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ok thanks for the imput.

 

Anyone suggest a decent sensibly priced replacement.

 

Im not expecting to go single or upgrade for a little while, so something pretty standard should be fine...and where to get it from.

 

Also if anyone can recommend a decent japanese specialist garage or servicing place around south london/surrey that would be bang on.

 

:)

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ok thanks for the imput.

 

Anyone suggest a decent sensibly priced replacement.

 

Im not expecting to go single or upgrade for a little while, so something pretty standard should be fine...and where to get it from.

 

Also if anyone can recommend a decent japanese specialist garage or servicing place around south london/surrey that would be bang on.

 

:)

 

If you're running stockish power, just fit replacement OEM clutch parts from your local Toyota dealer.

 

EPC image and part numbers attached.

Picture 1.png

Picture 2.png

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ok thanks.

 

Just one last question - if te clutch was slipping, when i floor it - ad the revs hit 3k ish - wouldnt the revs shoot up but the power not increase....instead of the revs dropping and the power increasing normally???

 

Just been on a long commute - and been toying with the ideas in my head!

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The clutch will slip once the engine torque output goes beyond its remaining capability to grip, and then as road speed increases and so the torque difference fall, it can grip again. Basically all that means you feel a steady power delivery even though the revs are all over the place. So, er, meh - get a new clutch :)

 

-Ian

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Hi again guys...probably bored of hearing from me now, just wondering how much i would be looking at generally speak for clutch replacement...just so i can see if im beeing mugged off or not!! bearing in mind its a standard clutch! :)

 

They're quite expensive, around £400 I think. Get it replaced asap.

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Ok, the garage have drop the clutch and told me there was excessive damage to the flywheel.

 

Apparently this is a toyota only part, and costs approx £400

 

Total cost to do the lot £980 clutch, and flywheel.

 

Is tis about right or am i having my eyes ripped out?

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