Guest begone Posted September 11, 2005 Share Posted September 11, 2005 How much boost can the JDM Turbos reliable hold? (PSI/BAR) and How much HP can the JDM with Intake, 3" DP, Super Dragger Catback with Restrictor Plate be putting to the wheels? Thanks. Quote Link to comment Share on other sites More sharing options...
Nic Posted September 11, 2005 Share Posted September 11, 2005 How much boost can the JDM Turbos reliable hold? (PSI/BAR) Depends how reliable you mean, 1.2bar is generally regarded as a *safe* limit but running them at this boost can decrease the life expectancy of the turbos. I run mine at 1.25-1.3bar but have supporting mods (FMIC, fueling, emanage, etc.) How much HP can the JDM with Intake, 3" DP, Super Dragger Catback with Restrictor Plate be putting to the wheels? At 1.2bar you'll be looking at around 365hp-385hp (UK hp, not US hp) at the crank. Quote Link to comment Share on other sites More sharing options...
dangerous brain Posted September 11, 2005 Share Posted September 11, 2005 OK let me say a word or two. My decent power run achieved 395 bhp at the hubs on stock tubbies on stock injectors and stock fuel control @ 1.14 bar of boost. Each and every run above 1.14 saw the power reduce. So I would deduce from that that my particular turbo's efficiency peaks high point was about 1.14 bar or around there. Individual pieces of equipment will react differently to certain tuning parameters but I would say aim for about 1.15 bar on stock tubbies. A super drager and decat should push you the 1.2 bar with the chris wilson 1.2 bar restrictor no worries but its the inlet side you should think about if you do go that way. If your inlet cooling IE SMIC is a bit tired you are setting yourself up for a disaster. I'd advise a new uprated SMIC or an FMIC both of which have their own merits. I would also reccomend water injection as I'm sure that is what has held my engine together despite repeated attempts to blow it up. Quote Link to comment Share on other sites More sharing options...
JohnA Posted September 11, 2005 Share Posted September 11, 2005 In my opinion, if you want to play it safe (whatever 'safe' means for a modified car) then don't let them go over 1 bar. Quote Link to comment Share on other sites More sharing options...
Ian R Posted September 11, 2005 Share Posted September 11, 2005 1.2 bar Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.