My current setup is t3/t4 57trim with .50a/r compressor side and .63a/r exhaust side. Tial 38mm wastegate set at 7psi, DSM 440s, Rev hard log manifold with dp. hks knock off bov, and ebay intercooler, all tuned with crome pro.

In the new year i wanna bump it up to 10 psi, i know im going to need to get walbro 255 and a retune, but my question is will my DSM 440's be maxed out? and would i need to get bigger ones to go to 10psi? im aiming for around 300 whp. Thanks.

 

i would get some 550's or if you plain to go bigger later on get some 780-880s

 

750's

 

i dont think 440s will do it, plus you need a resistor box for them, may i suggest saturated 550's? or dare i say 650's? they leave you room to grow into.

 

just spend the extra money and go with 750s..

 

750s

 

750's it is then, thanks guys

 

750's will give you lotsa room and they are still saturated and dont need a resistor box.

 

but since i already have a resistor box wired in should i just get peak/hold 750's?

 

if thats the case yes. but i think if you are running an obd1 ecu, i would use saturated injectors. but thats just me.

 

what would the difference be? just wondering?

 

this is my personal oppinon and i have heard from people, but have no hard cold facts to back it up, but i have seen in our tuning that an obd1 ecu with saturated injectors idle a little better generally run a little better than an obd1 ecu with p&h's with a resistor box. i myself have a resistor box, but also i am running 1200 cc/min injectors. they dont make sats over 750 that i know of.

IF I AM WRONG PLEASE CORRECT ME>
thank you that is all.

 

does anyone else have anymore opinions on this? just trying to get more info. thanks!