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Discussion Starter · #1 ·
hey all, basically I really want to have my 1.8t golf remapped, and just wanted to know if there are any mods i should do before hand? All ive really done at the moment is fit a pipercross panel filter. Ordering coilovers over the next few days so suspension will be ok. thanks in advance for an snippet of your infinite wealth of knowledge!
 

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Forge 007p recirc valve, if you don't already have one.

And a nice exhaust system would get you a higher remap figure as well!

:)
 

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If you getting a exhaust system, then get a 3" decat downpipe aswell. The original one is amazingly restrictive and you will struggle to loet the turbo breathe with it.

Stick that into a stainless scorpion cat back exhaust and your laughing with a great exhaust.

Try get some more forced air into the airbox.
 

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Make sure there's no boost or vacuum leaks. A remap will only accentuate the need to do this.
 

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Who is doing the remap? is it a custom remap?

If its just you average generic stage 1 remap (revo, apr, etc) then you dont have to fit the exhaust first, you can fit it later. Get the remap first and then if you still want more power and a louder exhaust - buy an exhaust.

The forge valve and air filter is enough for now...

EDIT - also chris said to fit a 3" decat downpipe, lol in truth unless you know a friendly MOT place or plan on swapping your cat in and out - get a sports cat and 2.5" downpipe, (3" downpipe is no better for small stock turbos)
 

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Discussion Starter · #7 ·
Yeah just a revo jobby for now. Just need a bit more power!! Exhaust might well wait till after the map then!!
 

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Id save up and do it all together, you dont want to end up mapping it twice.

Great tips given by users above, Just do the basics, make the car breath easier first, full 3" turbo back exhaust system, induction kit/better cold air feed into air box. Make sure no vacuum or boost leaks aswell as mentioned by Pat. And your ready for the remap.
 

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Id save up and do it all together, you dont want to end up mapping it twice.

Great tips given by users above, Just do the basics, make the car breath easier first, full 3" turbo back exhaust system, induction kit/better cold air feed into air box. Make sure no vacuum or boost leaks aswell as mentioned by Pat. And your ready for the remap.
Whats wrong with mapping it twice? thats what most stage 2 guys do.

If he was going to do all the stuff to get it ready for a stage 2 map (exhaust, silicone TIP, intercooler etc) that is going to cost a lot, and he may well be happy with the power gains of just a stage 1 map...

Also stage 2 maped cars often need a clutch upgraded (more money).

I'd recommend taking it slow just getting the revo stage 1 map now mate (or similar map) and then over time you can mod the car to suite you as you become more aware of what parts are out there, thats the thinking mans way of doing it [;)]
 

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He'd save money if he did the exhaust, intake and remap in one go ;-).

Remap on its own will see improvement, but be better if he did the exhaust and intake at the same time. OEM intercooler will be fine.

Exhaust, remap and intake, is that stage 2? and remap alone is stage 1?
 

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If you getting a exhaust system, then get a 3" decat downpipe aswell. The original one is amazingly restrictive and you will struggle to loet the turbo breathe with it.

Stick that into a stainless scorpion cat back exhaust and your laughing with a great exhaust.

Try get some more forced air into the airbox.
3" downpipe is actually too bigger diameter for the standard turbo best gains are seen with 2.5" downpipes.. been told this by more than 3 custom mappers..
 

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Any proof of this?

Ive never seen a 2.5" downpipe.
Best way to find out would be to look at the size of the diameter on the exit of the turbo.

If someone has one spare off a car, maybe they could measure it up?
 

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lol you guys should do a quick forum search on this if you want, I can confirm that what Golfin said is correct - but a 3" downpipe is not going to really be that different to a 2.5" downpipe on a ko3s. Note both will fit onto the turbo. 2.5" is plenty (a 3" will be louder btw). Some say 2.5 gives slightly more torque and 3.0 gives slightly faster spool up, we are splitting hairs tho, get whats cheaper - also a 2.5" is easier to fit and is less likely to knock on the chassis

@Tuf. for a good stage 2 map you want: Upgraded TIP, Upgraded air filter/intake, Upgraded diverter valve, Upgraded intercooler, & Upgraded turbo back exhaust... not to mention you will need a VR6/G60 clutch/flywheel upgrade soon after, and some mappers want upgraded FPR and fuel pumps.
Its stupid to do all this, spending money, without knowing what a stage 1 map even feels like, you may find Just a stage1, 200bhp map, more than enough - many do.
 

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@Tuf. for a good stage 2 map you want: Upgraded TIP, Upgraded air filter/intake, Upgraded diverter valve, Upgraded intercooler, & Upgraded turbo back exhaust... not to mention you will need a VR6/G60 clutch/flywheel upgrade soon after, and some mappers want upgraded FPR and fuel pumps.
Its stupid to do all this, spending money, without knowing what a stage 1 map even feels like, you may find stage1, 200bhp map, more than enough - many do.
Ive owned a mk4 1.8T for many years but never thought about tuning it. But not really understood, what stage 1, stage 2 etc is, thanks for clearing that up[Y]...

Im also run a 382bhp honda civic type-R ;-). which will be going higher in the new years[6].
 

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Id have thought the more free flowing the better tbh, since turbos dont need any back pressure.
Yea but the problem is after 2.5" there is no advantage in small turbo's like the k03s (diminishing returns) and you can get like some back pressure in the 3" because its so big you get like turbulance. End of the day I run a 3" downpipe and sports can with no problems. But for the record 2.5" (or the rare 2.7") is what is recommended for KO3s.

@Tuf. for a good stage 2 map you want: Upgraded TIP, Upgraded air filter/intake, Upgraded diverter valve, Upgraded intercooler, & Upgraded turbo back exhaust... not to mention you will need a VR6/G60 clutch/flywheel upgrade soon after, and some mappers want upgraded FPR and fuel pumps.
Its stupid to do all this, spending money, without knowing what a stage 1 map even feels like, you may find stage1, 200bhp map, more than enough - many do.
Ive owned a mk4 1.8T for many years but never thought about tuning it. But not really understood, what stage 1, stage 2 etc is, thanks for clearing that up
...

Im also run a 382bhp honda civic type-R ;-). which will be going higher in the new years
.
no problem mate.

So off topic but whats the civic running? turbocharged k20? not sure I'd fancy 380bhp to the front wheels tbh tho lol but im sure its fun! - plan of going AWD in my next car :D
 

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Have to agree with you on 4wd, theres a guy on our k20 forum who owns a Rotrexed r32 golf, its insane, rotrex has gone for a rebuild but non the less its crazy. i think its around 450ish bhp.

Im considering the poor mans r32 the golf v6 4motion, as it seems like fantastic value for money!

Yes the civic is k20 turbo, the way its been tuned and set-up, it plants all the power down in dry. In no way a boy racer, but wiped alot of smiles off evo and M3 owners lol, bonus being the civic is a sleeper and looks completely standard-

SORRY TO THREAD CRAP OP, just a few pics of the civic if your interested?- if you would likeme to delete the post just pm me and il get rid[Y]

382bhp at only 9psi.

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