I am curious as to how many NA 20B's are out there. If you have one what kind of internal mods, external mods, ecu, etc do you have? What kind of power are you making?

 

Will let you know power when I get it dyno'd. It will be done on a Dyno Dynamics dyno though, so will read less than Dynos in the States.

Internal mods: Extend port. Full rebuilt.

ECU: Microtech LTX12

 

A completely stock engine has gotten 220rwhp to the ground.

 

Completly stock as in stock twins, or stock NA?

 

I am curious about this as well. Im debating between turbo or doing a P Port NA.

 

Na

 

This is what I have in mind for a 20B NA motor, I am still uncertain if I want to stay 13B or go 20B, since I could get the same power from a turboed 13B.

-9.7:1 rotors w/radiused edge like renesis rotors
-Renesis Statinary gears
-Balanced rotating mass
-Water Jacket mod
-Lightned Flywheel and pullies kit
-CerMet coated rotors and possible rotor housings
-Street ported (nothing to aggresive)

If going on the extreme side add or change with the following:
-Machined Renesis rotors
-Guru Racing tension rods
-Front main bearing loop line
-Clearanced rotors
-Entire engine CerMet coated

Then I have been thinking of the reprogramed AEM ecu, Haltech E11, or Motec.

 

You for got to add ITBs

 

I am looking to keep it streetable and the ITBs will not give me the runner length to help air velocity to aid in the low end driveabilty.

 

Been mentioned several times already...

Bone stock engine
Haltech E6K
232 at the wheels on a DynoJet
About 190 lb-ft


-Ted

 

Were the 20B's under rated from factory? They must have been seeing that those numbers are close to the 13Brew with the twins.

 

20Bs only came out from the factory twin turbo'd. He's stating specs of a conversion 20B na in a first gen.

Cosmo 20Bs were rated at 276 hp (206kw) however real output is supposedly 320 hp