Whats the most power you can get from the 1.8t

[BLN355]

Hey guys been doing a bit of searching on the net for performance upgrades for the 1.8T and it got me thinking what is the HP/KW limit at the engine for these engines??
From what i have seen there doesn't seem to be many over 250hp on a stock bottom end would this be about the reliable limit for the 1.8?

Will a K04 upgrade get you to those figures with all the other mods (cooler/intake/exhaust etc) or would it nessecitate in something like a Garrett GT28R?

Cheers Nick

[Golf Houso]

Vortex is your friend...

Look at other people's set ups on there...

http://forums.vwvortex.com/zeroforum?id=27

[VW GTI]

I'm fairly sure Guy's TT has almost 400hp at the flywheel.

[h100vw]

300hp/300lbs is the usual limit on standard rods. 6-700 with a big enough turbo and a well specified engine build.

The main reason for stopping at 250 is the sudden rise in cost when you have to replace the turbo with something bigger.

Gavin

[GT3]

Nick, how do you intend to use your Polo GTI once you get it? Will it be just a street car, street car/occassional track use, occasional street/serious track use, 1/4 mile drag, race car ???

That's the best way of determining how to set it up - a serious increase in power needs to be balanced against the car's capacity to cope with it, ie handling, brakes, traction, clutch, diff etc etc.

[BLN355]

Nick, how do you intend to use your Polo GTI once you get it? Will it be just a street car, street car/occassional track use, occasional street/serious track use, 1/4 mile drag, race car ???

That's the best way of determining how to set it up - a serious increase in power needs to be balanced against the car's capacity to cope with it, ie handling, brakes, traction, clutch, diff etc etc.

Yeah i dont want stupid power out of it i was just curious as to the limits of the stock bottom end in the 20v 1.8T.
Mines going to mainly be a daily driver with the occasional track and 1/4 run, i do however want it in the 13's
Initially i'll probably be looking at coil overs (or a decent spring shock combo),18's and bigger brakes and maybe swaybars along with a chip/intake/filter then will throw a few more performance mods at it as money allows.

[VW GTI]

Yeah i dont want stupid power out of it i was just curious as to the limits of the stock bottom end in the 20v 1.8T.
Mines going to mainly be a daily driver with the occasional track and 1/4 run, i do however want it in the 13's
Initially i'll probably be looking at coil overs (or a decent spring shock combo),18's and bigger brakes and maybe swaybars along with a chip/intake/filter then will throw a few more performance mods at it as money allows.

Well considering just chipping it will get it down to low 14s, 13s can't be too far off.

[Celestine]

Reckon that if you did what Neil did (APR chip, exhaust, BMC CDA) you should be able to push the 13 second marker.

I'm not very certain but isnt there meant to be a separate APR tune for the KA04 turbo. However, I dont think it's necessary as you'll probably end up breaking bits and pieces if you're not careful.

[VW GTI]

Reckon that if you did what Neil did (APR chip, exhaust, BMC CDA) you should be able to push the 13 second marker.

I'm not very certain but isnt there meant to be a separate APR tune for the KA04 turbo. However, I dont think it's necessary as you'll probably end up breaking bits and pieces if you're not careful.

There is an updated tune for the K04, it is free if you have the APR tune and upgrade to K04 through an APR dealer, otherwise it's an extra $700.

[GT3]

The KO3S will deliver a reliable 145 kw atw, although traction will be a problem - an LSD will aid traction in corners, but not off the line. With more aggressive tuning and higher octane fuel, hitting 155-160 atw is possible. As you go bigger in turbos, power is then directed more toward the higher end, eg KO4 mid-range, Garrett GT28R high-end. This obviously results in more lag - something that may or may not suit you.

[shaneth]

an LSD will aid traction in corners, but not off the line.

Sorry to disagree mate but a lsd will help in everyway. Yes it may not eliminate wheel spin but it will help. And then if you match some sticky rubber with an lsd lookout. From memory KAI did a very high 13 with sticky rubber but no lsd wonder what is possile with his setup and lsd.

EDIT - dam i want a lsd

[Flaps]

I have an LSD and it does aid in traction off the line.

[GT3]

I have an LSD and it does aid in traction off the line.

Fair enough, it certainly helps, but in terms of 1/4 mile drag strip times, it won't radically bring your time down (in a Polo GTI) - which is what Nick is interested in.

Both Ralphk and Guy H have/had LSD and K04 in their Polos - see their comments from previous posts re traction:

Ralphk - "I have 215/40/17 and LSD......and yep still traction problem."

Guy H - "LSD (or really its not an LSD, but a TBD : Torque biasing differential - very different to how an LSD behaves). Anyway - its one of the biggest single improvements to the Polo - not so much in launching or drag racing starts, but through corner speed and the ablity to keep the power down is improved by zillions of a percent!"

Guy's best drag strip time was 14.0 with approx 160 kw atw and TBD - and indications are he had no proper traction until 3rd gear.

My best time was 14.1 with 133.5 kw atw @ 99mph. I could only manage a 14.3 with 145 atw bc traction become considerably worse. What's interesting is that I did 14.3 @ 103mph, which in theory means I was losing over half a sec in traction.

Kai did manage a 13.9 with semi-slicks. He's got lots of experience at 1/4 mile strips. Also, if you're prepared to abuse and hammer the drivetrain and clutch, it can be done. Personally I found all the gunk and water they piled on strip made my traction worse

[GT3]

By the way, ..I think Nick has one the ...um, most interesting VW Avatars I've seen so far ..don't know how well some of our female members will react to it

[VW GTI]

don't know how well some of our female members will react to it

Maybe they'll start doing that and it will become the norm.