More Flow, More GO! 

 

 

 

 


                                                                              

              NISSAN VG 30 INLET MANIFOLD

 

                    FLOW FIGURES @ 28” WC

  

BEFORE POWER PORTING                                                AFTER POWER PORTING

 

1. 299 cfm                                                                   1. 362 cfm  UP 63 cfm

2. 317 cfm                                                                   2. 352 cfm  UP 35 cfm

3. 313 cfm                                                                   3. 360 cfm  UP 47 cfm

4. 301 cfm                                                                   4. 358 cfm  UP 57 cfm

5. 313 cfm                                                                   5. 351 cfm  UP 38 cfm

6. 315 cfm                                                                   6. 350 cfm  UP 35 cfm

 

 

                         AVERAGE INCREASE PER RUNNER 45.8 CFM.

 

                     VG 30 THROTTLE BODY COMPARISON.                

                      

50 mm   441 cfm

 

53 mm   493 cfm

 

55 mm   530 cfm

 

FLOW TEST WITH THROTTLE BODYS ON

POWER PORTED MANIFOLD, NUMBER 3 RUNNER .

 

50 mm    316 cfm

 

53 mm    327 cfm

 

55 mm    338 cfm

 

testing @ 28 “ w/c