I have seen this discussed a bit, but what are the benefits to doing this to the supercharger/throttle body... what type of gains would you get?

 

not sure of the supercharger but i remember seeing a post/pic of a guy that ported the TB and gained 6whp just from that

 

not alot to be gained there. With a properly ported Supercharger your iats will drop without losing very much boost. Throttle body seems to be a waste of time imo.

 

If your going to port anything, port the head. The most restrictive part of the lsj is the head. You also need to remember that boost doesn't equal power, sometimes the less boost the better . Port the head.

 

I did a 5/32" hand port on my outlet last week, as well as smoothing the intake side.

Its an impressive difference, even on a stock car.

 

what kind of differences do you notice?

 

He asked about the supercharger and the throttle body. Ofcourse more boost doesn't equal power but you do no where boost is measured from right? You do realize that if you ported the SC and made no other changes and lost boost your car would be slightly slower?

Ported the SC can be a DYI, porting the head for most people isn't going to be free.

Are you sure you can tune these cars?

 

 

lol tom ur car caught fire? lol my friends fusion just went up in flames a couple days ago.. ima post some pics of it when i post the thread with the TVS on..btw.. header/downpipe scheduled to arrive the 21st bout damn time

 

it better get here soon lol

 

ur not gonna be slower with a ported s/c u will lose some boost but its cuz ur making it more effiecent.

 

just rememeber.. its all about how much boost is getting into the motor.. not how much your gauge is saying. plus porting it just gives you another reason to change out your s/c oil. lol

 

I plan on doing it this weekend. I will be back to the Dyno Next week so I will let you know.

 

[QUOTE=Stiner;4116259]not alot to be gained there. With a properly ported Supercharger your iats will drop without losing very much boost. Throttle body seems to be a waste of time imo.[/QUOTE
30-45 min for 6.4whp is deffinatly worth it https://www.cobaltss.net/forums/show...ight=headgames

 

[QUOTE=Stiner;4116259]not alot to be gained there. With a properly ported Supercharger your iats will drop without losing very much boost. Throttle body seems to be a waste of time imo.[/QUOTE
30-45 min for 6.4whp is deffinatly worth it https://www.cobaltss.net/forums/show...ight=headgames

 

[QUOTE=Stiner;4116259]not alot to be gained there. With a properly ported Supercharger your iats will drop without losing very much boost. Throttle body seems to be a waste of time imo.[/QUOTE
30-45 min for 6.4whp is deffinatly worth it https://www.cobaltss.net/forums/show...ight=headgames

 

Porting the blower will not lower boost unless you're putting less air in the motor (and you shouldn't be..lol)..

Your logic holds true for porting the exhaust side of the head.. (or doing anything that allows the engine to flow more air on the exhaust side)

 

Porting the blower does lower boost while increasing efficiency. Sorry Dustin. Had to correct that

When done correctly

 

Meeeehhh... the blower is not a restriction on the system, it is the reason boost is made in the first place.. if you have less boost and all you changed was the blower, you're not putting as much air in.. and not making more power..

Unless i'm retarded.. then.. ignore me..

After thought: If boost was measured on top of the blower, pressure would lower, yes.. but boost is measured after the blower, in the intake

Or if this was a charger (such as a twin screw) that built pressure in the blower, PERHAPS it would lower boost to port the outlet.. but.. a roots type doesn't build pressure in the blower itself

 

Dustin, trust me on this dude. I've never steered you wrong before.

 

lol.. i'm gonna need it explained to me..

It seems like to me if you make the sc pump more air/ more efficiently (by porting it) into the same space, it's going to make more boost, not less..

I'm totally willing to proven wrong.. i just need to learn why

I can see that if it makes a cooler charge that would make more power... but i'm not sure where the balance point for a smaller quantity of cool air meets a larger quantity of hot air

Adding to my point.. to use the logic that openning up the ports in the blower lowers boost.. is the same as saying i could weld them half way shut and make more boost... or.. funnel it through a straw and make like.. 40 PSI!

 

Blow HARD on a McDonald's straw, then blow just as hard on a Wendy's straw. Same air, but less pressure

 

That is comparing releasing pressure from a system.. where as we are talking about putting pressure into the system..

We are increasing the flow into the system, while not allowing it to exit anymore freely..

 

i lost about .5-1psi when porting mine but it made it more effiecent

 

I ported the stock blower and did some head work all at the same time.. i don't have before and after comparison *sad*..

.. and have gona tvs since then... well.. if nothing else.. i know the tvs makes more boost