i've been putting off turbocharging my bike butt now that its riding season i need boost...i have 2 questions
1. should i lower my compression if i am going to run 4psi
2. what size charge piping should i use if i'm using a td04hl-16t off of a volvo?
thanks for the help

 

it will be fine with stock compression. i would use 1.75" or 2" charge pipes

 

the stock compresssion ratio is 12.9:1 what do ya think

 

you will be fine with 5psi or less. i woud go at least one step colder on the plugs though or maybe even two

 

im looking to make 130 to 140 hp on about 4psi which of these mitsu turbos should i go with? http://www.not2fast.com/turbo/maps/ i was gonna go with the td04hl-16t butt it seems like i'll have to modify the fuel system for that...

 

what kind of bike are you working on?

 

2005 zx-6r... 636cc 12.9:1cr and i want to run 4psi no more no less... i just want to make more power than i can with simple bolt ons

 

you will need to do something for fuel running 4psi. but you should be just fine compression wise with 4psi. i wonder if a power comander can compensate for boost. i have really never modded bikes.

i used to ride one of those bikes though. it was fun smokin gixxer 750's on a 600. lol

 

guys are running nitrous on power commander alone and making excellent power...
http://www.kawiforums.com/showthread...nitrous&page=2
check out the bottom post... it reads --------------------------------------------------------------------------------

107 on motor today(stock)
121 on the 12shot
132 on the 20 shot
144 on the 30 shot