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Author Topic: r-tech question? porting exhaust manifold pre remap  (Read 3700 times)

Offline blade4real2004

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r-tech question? porting exhaust manifold pre remap
« on: 12 February 2012, 14:20 »
hay nick just a quick question are you able to explain what needs doing to the exhaust manifold in detail for porting for a k04-001 upgrade before the remap?
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k04s | jabba cai | stage 2 (Rtech) | forge 007p | forge boost hose set |forge tip | THS fmic | gen r line kit | bbs ch | TT short shift | R32 vents | full stainless | decat | auto windows | mk5'd boot
need a scan or mod with vagcom & vagtacho PM ME (south wales area)
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Offline RTechUK

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Re: r-tech question? porting exhaust manifold pre remap
« Reply #1 on: 13 February 2012, 20:26 »
The collector needs cutting down by around 45% and the runner on number 3 needs to be enlarged.  You just want to make it flow better and get rid of all the sharp edges ect...
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Offline Chris.

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Re: r-tech question? porting exhaust manifold pre remap
« Reply #2 on: 13 February 2012, 20:44 »
Looks like ill whip my manifold off and port all the runners.  How far can you safely go?
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Offline RTechUK

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Re: r-tech question? porting exhaust manifold pre remap
« Reply #3 on: 13 February 2012, 21:03 »
Quote from: Chris. on 13 February 2012, 20:44
Looks like ill whip my manifold off and port all the runners.  How far can you safely go?

I dunno.... :laugh:

Its a case of good judgement...........  so I took sh@t loads of mine and it held up fine for 300bhp and closer to 400bhp with NOS and no nasty cracks..
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Offline Chris.

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Re: r-tech question? porting exhaust manifold pre remap
« Reply #4 on: 13 February 2012, 21:13 »
Out with the dremel then!  Shame theres no reliable free flowing one for k03* :(

Plenty more planned and i dont even have a car yet! haha
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Offline blade4real2004

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Re: r-tech question? porting exhaust manifold pre remap
« Reply #5 on: 16 February 2012, 16:50 »
my best crack free manifold is on my car so im going to have to pop it off at some point. hoping i can try and get it off with out having to drop to much off the bottom of the turbo to get it low enough to get to the bottom manifold bolts
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k04s | jabba cai | stage 2 (Rtech) | forge 007p | forge boost hose set |forge tip | THS fmic | gen r line kit | bbs ch | TT short shift | R32 vents | full stainless | decat | auto windows | mk5'd boot
need a scan or mod with vagcom & vagtacho PM ME (south wales area)
my build thread - http://uk-mkivs.net/forums/t/236415.aspx?PageIndex=1

Offline blade4real2004

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Re: r-tech question? porting exhaust manifold pre remap
« Reply #6 on: 16 February 2012, 23:04 »
got any pics showing were and what and how much nick? just  dont want to mess up my manifold
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k04s | jabba cai | stage 2 (Rtech) | forge 007p | forge boost hose set |forge tip | THS fmic | gen r line kit | bbs ch | TT short shift | R32 vents | full stainless | decat | auto windows | mk5'd boot
need a scan or mod with vagcom & vagtacho PM ME (south wales area)
my build thread - http://uk-mkivs.net/forums/t/236415.aspx?PageIndex=1

Offline blade4real2004

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Re: r-tech question? porting exhaust manifold pre remap
« Reply #7 on: 22 February 2012, 09:38 »
Any more info on this pics guide links?
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k04s | jabba cai | stage 2 (Rtech) | forge 007p | forge boost hose set |forge tip | THS fmic | gen r line kit | bbs ch | TT short shift | R32 vents | full stainless | decat | auto windows | mk5'd boot
need a scan or mod with vagcom & vagtacho PM ME (south wales area)
my build thread - http://uk-mkivs.net/forums/t/236415.aspx?PageIndex=1

Offline Chris.

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Re: r-tech question? porting exhaust manifold pre remap
« Reply #8 on: 22 February 2012, 20:08 »
Just attack it seems to be the way to go!
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Offline shaft69

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Re: r-tech question? porting exhaust manifold pre remap
« Reply #9 on: 22 February 2012, 22:50 »
Here one i've ordered since got take mine off fit forge actuator so may aswell get on for the price £100 posted.
http://www.ebay.co.uk/itm/390389546253?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
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MK4 1.8t bored/stroked 2.0lt AEG crank, 83mm supertech pistons, intergrated rods, ACL race brgs, Flowed large port head, Supertech valves, All ARP bolts, GTX2871r turbo, Tial wastegate, 3" pipewerx dp, REVO stage 3 tune, Direct port water meth, MORE TO COME!!! Ready to go racing
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