This guy at a performance shop that will remained unnamned for now just tried to tell me all TTs in the US come with a KO3sport and not a KO4 like the ones in Europe..i know i'm not crazy and neither is everybody else on this forum thatknows the KO4 comes stock on the TTs..

 

Yeah a ko4 is on the 225's but the 180's have a ko3 but i dont know if its a ko3s

 

ATC = ko3
AWP = ko3s

 

Basic explaination is, the 2000's leading intothe 01'shave the K03, all the 180's after have the K03s, and the 225's have the K04.

The K03 in any form is a little retarded, its like the whole turbo is the size of a damn grapefruit (thats a slight exaggeration). Something like a 4mm shaft on them too, a little scary I think. The K04 might have a tiny shaft as well though, still scary to think about.

I think theres a couple little variations in the K03's, pretty sure I remember Cincy listing them off quite a while ago, but that doesn't really come into play too much..

 

Sad how there's so many people in the 1.8T forum that say ATC=AWP [:@]

I was thinking of swapping in a K03s when I fab up an exhaust. Should make for a decent hp gain overall...I'm hoping like 15.

 

the ko3 has a 12blade wheel and 4mm shaft and the ko3s has a 8blade wheel and a slightly larger compressor inlet. The 8blade ko3 (the term ko3s doesnt exist, its a term made up by us tuners to tell the differnce). Also the ko3s has a differnt wastegate that is supposivly better than the ko3 aswell. The ko3s is rated 15hp or so higher than the ko3 and is slightly more effient.

The ko4-001 is a direct replacement for the ko3(s) and has a slightly larger compressor wheel and uses the same ko3 compressor cover. Its not any more efficient than the ko3s and is only rated 5hp more. The ko4-001 will only spike slightly higher and fall of just the same as a ko3 and ko3s.

The 225 turbo comes in 3 versions. The ko4-20/22/23. I do not know when they switch from one to the other. But the 20 i believe has a longer compressor outlet than the newer versions and the 23 comes with a built in EGT in the turbine outlet. The supply and non EGT makes the 20 the popular choice for most people that do the ko4-2x swap on there VW's. The wheels (turbine and compressor) are both larger than those on the ko3s/ko4-001 so the power is higher and holds more boost longer. Where the ko3s is rated to 220hp, the ko4-2x is rated to 270hp i believe.

 

BTW it was Dahlback's US distributor that told me this...in any case, have you seen Dahlback's prices? He's freaking crazy! $179 for a 5bar fpr..$8g for an almost BT kit?! Maybe they pay that much in europe, but I don't here!

 

were does CincyTT get all his info ?? he seem to have a lot of good info about things What do you do for a jod CincyTT

 

He consults his crystal ball.

 

CincyTT is a watered down version of God.


His word his Gosphel on these boards. [&:]