gaz-cole

how much boost can i sensibly run, my car is a my94 wrx with a full decat, panel filter, original 2c ecu(unmodified) lambdalink and standard boost just under .9bar the engine is not the original although not sure of the spec i know its a closed deck with a td05 turbo on it thanks,gaz

p1mark

It will not be your block (wether open, closed, or semi closed) thats the limiting factor unless you have quality forged pistons and all the other bits to support 500 BHP.

It will be your pistons and you need to advise whats in it. Certain STI pistons can run up to 1.5 safely, WRX ones less.

How do you know its a closed deck?

gaz-cole

cheers mark i know its closed deck by the cross hatching around the oil filter housing and by the crankshaft position sensor, the car i took the engine out of had been stripped bare with just the running gear left in it but defo a jdm, how can i tell what pistons are in it?

rossyboy

iTrader: (8)

I have a '93 WRX running 1.45 bar peak on the oe internals and standard TD05, Apexi mapped by Andy F. Nobody has ever mentioned that running this will cause problems. Obviously I have uprated the fueling system to cope

Indeed Andy said it could take more, were it not for me factoring in some gearbox longevity.

gaz-cole

cheers rossyboy how much did andy sting you for the apexi and remap and what exactly have done to the fueling cheers

rossyboy

iTrader: (8)

Used Apexi PFC & Commander cost me £450, Andy was £240 plus vat to map it. You will need a boost control kit to run in excess of 1.1 bar (I have an Apexi AVC-R).

Fueling:

550cc Injectors (440 would do)
Fuel lab Regulator
FSE Fuel Pump

Your top mount intercooler will become restrictive at around 300 bhp and you might want some ported oe headers as these give an excellent improvement.

It soon mounts up to £££££s

gaz-cole

cheers mate what model did 440s come in is ther an distinguishing features to the injectors, what you mpg like with your set up? gaz.

silent running

440's are yellow topped. 380's which came on early classics are grey.

911

Yellow top 440: Sti V3 for sure, mine were.
They were maxed out @ 315 bhp, so best go for some 550cc.
Graham

gaz-cole

cheers lads