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Last Decat Question (Honest)


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Posted

Right, i've mailed AndyF who i will be getting to do my map for his advice, what he says goes....

If the parts have to sit in my house looking pretty until mapping time then so be it.. maybe i'm just being an impatient big wean that wil regret not waiting........ BUT I WANT MORE POWER NOW!!!

Posted

You have made the right choice there Chris (spoke to him yesterday and he was down south mapping cars so dont know when hes back up, you could have to wait a couple of days for a reply)

 

Graeme

Posted

No worries, i'll wait on his answer before moving anyway, i've ordered the wrap and i'll pick up the gaskets just now anyway regardless, that way i can wrap and re-wrap my luvverly down-pipe ( [:D] ) to keep me happy in the meantime... lol

Graeme, you about tonight, i'm planning on popping over to Peter's to finally pick up my raffle win before he starts charging me storage!!

Posted

Yea will prob be over there for my dinner, thinking about going over at about half 7 you should bring your good lady for a meal!

 

Graeme

Posted

Nah, that may involve spending time with her, lol (jus jokin!)

I'll be heading over bout that time as well, won't be eating though, well, maybe a wee dessert!

Posted

Ok got a response from AndyF....

Gave him my current spec, planned mods to which he suggested a couple of little changes (plug choice etc)

As for the decat he advised i should be fine running both up and down de-cats until map time.

As such i will be fitting my up and down-pipe in the next couple of weeks, i specifically said in the question will it be okay to run as normal including "on boost" so if he says so i'll believe him (not saying there is no risk and its his fault if anything goes wrong though!!)

Posted

I was where you are (starting to modify lightly) two & 1/2 years ago.  Here's my experience.....

If you want to do the car in stages it is possible to do some things.  I did the straighforward mods on mine in stages over two years.  Started out with induction (every Jap car's first mod!), then plugs/fuelling (plugs, motorsport pump, rails & pressure regulator), then exhaust pipes (centre/up/down), then equal length headers.  Sort out air/fuel before modifying exhaust significantly was the advice I got, to avoid fuelling issues.

At this point I had a car which was great fun to drive and sounded awesome under load but suffered from some of the problems mentioned - slight boost spike under spool up etc.  I thought I would stop there.  But I didn't - so I got a new clutch.  But I wanted more and didn't want to wait.  So along came a new STI6 short engine, big injectors, ECU (Apexi) and boost controller (AVC-r), upgraded internals, gaskets and head studs, polished and ported everything, motorsport flywheel, gearbox rebuild etc. blah etc. list goes on.  Custom remapped on the road and runs like a dream. It's got 2 computer thingies I can fiddle with if I'm sitting in a queue.  Total entertainment value.

Am I finished? who knows.  Bank balance suggests I am ;)

BUT the warnings given here are correct.  Upgrades CHANGE your car's characteristics.  A totally decat exhaust has wildly different performance to a standard system.  The ECU really needs changed to an Apexi or similar so that the car can be tuned to the parts fitted.  The great things about an Apexi ECU (or similar) is that when you upgrade more parts, then you can get the map changed - it's a process towards a goal.

Posted

Ok got a response from AndyF....

Gave him my current spec, planned mods to which he suggested a couple of little changes (plug choice etc)

As for the decat he advised i should be fine running both up and down de-cats until map time.

As such i will be fitting my up and down-pipe in the next couple of weeks, i specifically said in the question will it be okay to run as normal including "on boost" so if he says so i'll believe him (not saying there is no risk and its his fault if anything goes wrong though!!)

Time between fitting and remap is how long?....1week,2weeks or 2years.

We never said it isn't alright to run with decats but it will be best for you to get it remap rather than later.[;)]

Posted

yes dave it is! It does make you laugh tho! Ricey

 

Defo does. Turning into Scoobynet in here.

 

Just to add, standard ECU's are great things.

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