My new to me motor getting tuned.

Mild build
JE piston 11.?:1 CR
PLM Toda replica header
Skunk2 TB
Injector Dynamics IM (like the JG IM, it's BIG)
Portflow head
Skunk2 valvetrain
skunk2 pro2 cams
s300

Results below

 

Ta-da:






Tuner says IM is too big and go with ported stock type r or skunk 2 street.

 

Is the entire setup the same as the old one? Or did you change some stuff? There should be at least 10 whp more in that setup.

 

For the most part it is the same..the main difference is I'm running the OEM ignition vs the coilpack setup that was previously on the car.

DNR agreed that there is plenty more in the motor...it's the intake manifold that they said is just too big for a 1.8 liter...for a 2.0 or larger, they would say keep it.

Guidance was to go back to stock ITR manifold or Skunk2 which is a bit more right-sized for the displacement.

 

I don't know much, but aren't Pro-2's too big for 11.x:1 compression & stock bore/storke @ stock rpm?

BTW: You didn't say which IM & header you had?

 

PLM Toda replica header
Skunk2 TB
Injector Dynamics IM (like the JG IM, it's BIG)
Portflow head
Skunk2 valvetrain

 

I would definitely take DNR's advice and go with a ported stock IM. Dave knows what he's doing. The porting they do on these manifolds is amazing.

I had a similar setup as yours about 7 yrs ago:

*98 spec JDM ITR motor
-DNR head
-Blox B cams
-DNR ported ITR IM
-72mm TB
-Profab header
-Spoon HG
-Tuned by DNR: 225whp/144wtq