my car's spec:

2.0lt engine
Ross custom pistons (92.5mm)
Crower rods
Clevite77 bearings
ARP studs
STI head gasket
Nismo 740cc injectors
TD05-18G turbo
Setrab Oil cooler kit
BOV Greddy RS
ECU APEXi POWER FC + Hand Commander
APEXi AVCR boost controller
STI new age - ported headers
Unknown up pipe (previous owner had this changed)
Full turboback stainless steel exhaust 76mm with cat on the downpipe
SAMCO silicon hoses
Spark plugs denso IK27
HDi type FM I/C
Forge wastegate (1 bar actuator spring)


which of the following up pipes would you choose and why?

HKS - inner diameter from 42 to 46mm - one piece
http://www.horsepowerfreaks.com/part.../Uppipes//6145
Invidia - inner diameter from 42 to 46mm - one piece
http://www.gotboostinc.com/inupsuwrx08.html
TurboXS - Stock diameter - 2 piece. No hole for EGT sensor
http://www.jscspeed.com/catalog/Suba...u_WRX_STI.html
Hayward & Scott - 51 mm diameter - 2 piece. Has hole for EGT sensor
http://www.eclipseracing.co.uk/product.asp?id=1008



thanks in advance

Odysseas

 

the up pipe you have will be fin at your level of power but if your reallly want a up pipe to suite that trubo which may give you a little bit more speak to harvey smith on here

 

the reason I am discussing up pipes is that i have an issue with full boost not coming at the desired rpm.

So, which inner diameter is best suited for a classic for up to 400bhp and which up pipe that will last and not break after 6 months?

I will get in contact with Harvey though.

thanks!

 

A standard ported uppipe should be good enough for up to 400. As its an unknown uppipe the diameter might not be suited to your setup ie too big a diameter which will effect spool up.
as you say speak to Harvey and he will put you on the right track

 

does anyone remember his exact nick since i type harvey on the pm recipent list and lots of "harvey" appear?

 

https://www.scoobynet.com/trader-ann...cessories.html there you go there is a link to one of harvey threads

 

If you look in traders announcements in trade sales he should have a thread in there where you can get his details from. Here is his email address if needed
harveysmith1@btopenworld.com

 

thank you guys!