Ported throttle body results

[MPFab]

I threw the Sonic on the dyno today to test out the ported throttle body that sneakerfix so graciously provided.
Nothing earth shattering, but it does appear that upper RPM gains are where this mod helps the most. The gains, however, aren't very consistent
Here are a couple graphs that show what I'm talking about.
runs 2&3 are the stock throttle body.



Although if you compare the best stock TB run vs. the best ported TB run, you can see that the gains aren't always so clear.

 

[Preloader]

Did the extra 10+ hp result mostly from the modified TB, or from tune tweaks? Or are you confident it is equally the combination of both?

Remember you were battling a wall until now. Suspected to either be valve float, lack of fuel pump flow, or the limitations of MAF. But now you squeezed out 10+hp more without (as far as we know) altering those variables.

The reason I'm trying to clarify is for practicality for us non-deity modders.

Meaning: most driveway modders can handle installing a turbo manifold, turbo, downpipe, pigtailed injectors, and a throttle body swap.

What could one expect stopping there? ~250whp (maybe a dozen people/year would jump on this)

Then for the next stage, the more advanced modders could tackle, head-porting, cam-swapping, valve-training, and BAP-ing.

Pushing the limit to? ~275-300whp (maybe 1-2 people/year)

I was going to estimate costs of each of the 2 stages I listed above, but that is not for me to infer, nor do I want to scare people off prematurely if my guesses are too high as I tend to do, as a way of bracing for impact.

Also, it's nice to see the 300hp mark with stock internals. It seems people are eager to conclude that internals are the first thing to upgrade when chasing big power. But it seems this 1.4 is quite a stout lil b¡tch from the factory.
I mean over 200hp/liter....... My God!!!!

 

[MPFab]

These are great questions. I'll have to address later. It's time to get my eat on!

 

[CheapFuneral]

These are great questions. I'll have to address later. It's time to get my eat on!

Have a good thanksgiving.


If I die, bury me in my truck, because it's never been in a hole it can't get out of!