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The mkiv Supra Owners Club

Just de-catted


Glosphil
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Finally removed my 1st CAT, removed the 2nd some time ago.

 

Been laying under the car in the rain all day long, this has been a nightmare. the nuts wouldnt come off and ended up undoing the bolts from the manifold with them. I thought great its going to of threaded them and I'll need to get it to a garage to sort it.

 

I carried on anyway and joined the 2 de-catts together and put them on inc 1.2 bar restrictor. To my surprise the bolts screwed back into the manifold nice and tight yay :)

 

Sounds much nicer now, but I think I may have pneaumonia lol

 

Shame I cant blat it and give it a test, bloody rain.

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I got a decat for my supra and when it was fitted the car wasnt running right

at all on channel 1 2 and 3 on the blitz boost controller

car only ran right when it was on channel 4 - 1.35bar boost

 

any ideas why this was happening ??? Car is running stock ecu. Might

it need to be mapped with a stand alone or whats the story

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yeah hogmaw been wanting to do it for ages now,tried one before, but couldnt get it off, so just took the 2nd catt off. It has been boosting to 1.2 and above with the 1st Cat in, so not sure how much diff it will make.

 

I've got a nur spec R exhaust on it.

 

Have you had a chance to try it out yet? Or still too rainy

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I've put a walbro pump in, Denso IK22 plugs, not done a fuel filter? where is it?

 

I've also repalced the O2 sensor, removed both CAT's

 

Fitted a Greddy 2 Row FMIC

 

Cam belt etc

 

Defi Gauges.

 

I hope you've done all the required modifications Phil?

 

Uprated pump, new fuel filter, boost gauge, colder/closer gap plugs, decent IC, restrictor, 1st cat removal, etc

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mine s bpu`d and only running , 1.05 bar

 

Well I'll see what the restrictor ring does, but in the cold with the 1st CAT still in it was boosting to 1.38 so I put the exhaust baffle in and it took it down to 0.9. Rekon with the cat off and the ring it should be ok.

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