I have searched for a little now on here about porting the M62 and want to find out more and im lazy to keep searching. Heres the deal my cobalt is in the garage year round and comes out only in the summer months. Well my list of mods go on and on but for the quick run down to get what im talking about to help me i got....
2.6 Pulley on the supercharger
Full exhaust
injectors
tune
aftermarket clutch and flywheel
fujita intake
wideband and interceptors
iridium plugs
dual pass with opt b
zzp front second H/E

Well listen, I dont wanna spend too much money but im getting bored and want something to do thats what it really comes down to, the car sits there and i dont do anything. Well my girlfriends father is a big mechanic and does everything, he has a machine shop and everything at his house. I was thinking to port the supercharger out and installing the LS4(i think thats what zzp has) TB on it. He said he can port the blower for me no problem just seeing what gains people get and see if i can even do it.

Thanks guys

 

Armcclure gained close to 20whp from a ported blower.

 

including the LS4 TB or no?

 

Ofc. Ls4 throttlebody is a wonderful thing.

 

wow youre still on here?? havent seen you in a while

and subd to this bc I would like the same info.

 

I know dude its been a very long time!!!! But yea im looking to see if i should do it. What exactly do they port the inlet tube and the outlet opening?

 

I believe most gains are coming from the outlet. Many say don't touch the inlet side, and if you do... go very light on the port.

 

Yea like if anything just polish in intake side

Def port the exit side. you wanna go like what 1/4 inch around it maybe.

And plug the silencer holes!!

Only really worth running the ls4 with a tvs blower and 3" intake

 

Or if you want better throttle response.

 

True

Gmpp pedal set makes the throttle different too haha

 

Isnt my fuhita intake A3" intake? And wouldnt it be better with me running a 2.6 pulley on my blower?

Do you have a picture as to where the 1/4 should be? And y plug up the holes?

 

Thats just what i derived from reading a few writeups on blower porting on here there are pics in those threads

Not sure what size the fujita is id guess 2.5

If ur running that small of a pulley id be more concerned about cooling mods. And porting the exit on the blower does effectively cool better

Plugging the silencer holes makes the blower a lot louder which is what we all want deep down lol its risky though and many do not want to do it for the risk of the plugs breaking into the intake mani. Again threads on this subject exist too

 

What are the useing to plug these holes?

 

quicksteel.

also, the fujita is 3"

 

click interesting subject. what kind of #'s would you see with a 3 inch intake, 3 inch LT & catback, ls4 TB, pnp head, 2.7, and pnp sc on 94/91?

 

if you don't know what your doing on porting the blower leave it alone you will make the performance fall off and plugging the silencer holes is useless

 

Really? I wanna go the harrop way but dont feel like takin my motor apart and stuff

 

Nothing in your motor needs to come apart

 

Ive always seen threads saying how you have to port the heads and build up the head. And have to use meth and crap.

 

use a plate between the blower and holes so the plug cant go into the manifold. Will take some custom work but would be completely safe. Also weld in the plug, but be sure to heat up the casing of the supercharger so it doesnt warp(very important) but its just a sound mod.. up to you if its worth it rice. Just go TVS.

 

This,
with E85 with and a TVS you can go really high HP wise and not run into problems. just get a good tune.

 

Nope. All the other things you mentioned just help the TVS work it's best. All stock motor on pump gas around 300whp is achievable

 

OO people were telling me oo you need to port your head and all and meth and crap, i may need myself a TVS, and then tune it.

 

Bump im looking to do this also

 

looking to do what