Thread: Need opinions on DE-T setup

Posted a topic similar to this on the other forums and got little to no help. That post did included a VE head swap, which I am omitting for now.

So, JDM highport motor, what's the compression numbers on these?

Plan on running a GTi-R manifold and turbo, custom intercooler piping with front mount, Calum basic (for now) and maybe 10psi to start with.

What kind of power am I looking at? What's the maximum boost I can get by with this turbo/motor combination?

In the future, when money allows, I plan on swapping in a built VE motor with a 2871R and running Calum realtime.

10:0:1 my apologies

around 260ish i guess

Run 12 if your untuned

10.0:1

250 < HP < 290

16 psi with tuning.

Cheers,

Lol at confusing information.

JDM SR20DE compression is 10.0:1
USDM SR20DE compression is 9.5:1
JDM SR20DET compression is 8.5:1

10 psi with GTi-R manifold and turbo is 260 - 300 WHP on your 10.0:1 compression.

Max boost on pump gas with that combination depends on how efficient you make things, but 16 psi is a good limit if tuned, and I like the 12 psi limit mentioned if untuned. Really the power output is going to tell you if you're reaching the limits. Above 320 WHP and you're running out of turbo at that point.

At what point do I run out of motor? lol. 10-12psi seems like it will be just fine for me, since it will be pretty much un-tuned at first. (hopefully the calum base maps are ok)

I'm running a 10.0:1 compression engine right now with a bb setup in my sig with a Calum Basic. His maps are pretty good. The only problem I have with them right now is my car is running stupid rich at idle and doesn't want to idle correctly, but I'm pretty sure it's probable a bad sensor.

As the old Nike expression goes, "Just do it!" if you have to ask questions about how much power and boost you can run than you might not be ready to take on this task. There are a lot of guys on here who have done what you're thinking about and it works just fine. Just search around a bit and you'll find all the information that you'll need to do it.

Goodluck

not all jdm sr20de high port motors are 10:1 most are 9:5:1. there is a huge thread on the old forum on how to tell if the motor is a 10:1 or a 9:5:1. my jdm high port is a 9:5:1 motor. I make 342whp now and will make over 400whp on the new turbo. As for limitations you can make 500whp on a stock motor. As stated above you can't run as much boost on the 10:1 motor depending on the size of the turbo and if you are going to run water/meth injection.

I'm pretty sure he's ready to take on the task. His questions make complete sense for someone coming from an engine he knows well (Mazda) to one he doesn't (Nissan).

isn't all 10:1 UK motors?

We don't even know what compression our own engines are. So sad... =(