Porting Throttle bodies?

RyanWest · 11-23-2013, 02:15 AM

I guess my main question here is a tune in need after i port them?

Anyone done this? seen gains?

370Z JT · 11-24-2013, 10:38 PM

I plan to port mine. Bought an extra set and am going to send them to max bore. I plan to get a retune on.

Only member that got this done that I know of was Megan Z. I think he reported gains of 7-10WHP.

Megan370z · 11-25-2013, 06:54 AM

Quote:

Originally Posted by 370Z JT

I plan to port mine. Bought an extra set and am going to send them to max bore. I plan to get a retune on.

Only member that got this done that I know of was Megan Z. I think he reported gains of 7-10WHP.

gain of 7-9whp was reported twice on a fully custom/bolt-on setup.

the TB were bored to 62.5mm,
the butterfly plate was arrow edged
half of the shaft was cut (only 1 side remained)
both screw were filed down.

you will need a bigger MAF Tube if you do this. not sure about stillen diameter. my cai was custom.

Wonka2581 · 11-25-2013, 07:29 AM

Hmm how much does this mod run?? and will it need a tune after??

Megan370z · 11-25-2013, 12:21 PM

Quote:

Originally Posted by Wonka2581

Hmm how much does this mod run?? and will it need a tune after??

depend if you can do it yourself or not.
anything between 0-600$ for the job on the TBs and yes I would advise for a tune, ofcourse if paired with a bigger MAF Tube.

RyanWest · 11-25-2013, 01:33 PM

Im running Z1 tubes with stock air boxes. Im wondering if any one can do a DIY on porting these????

7-10WHP gains seem legit to me

Chuck33079 · 11-25-2013, 01:41 PM

Quote:

Originally Posted by RyanWest

Im running Z1 tubes with stock air boxes. Im wondering if any one can do a DIY on porting these????

7-10WHP gains seem legit to me

Quote:

Originally Posted by Megan370z

gain of 7-9whp was reported twice on a fully custom/bolt-on setup.

the TB were bored to 62.5mm,
the butterfly plate was arrow edged
half of the shaft was cut (only 1 side remained)
both screw were filed down.

you will need a bigger MAF Tube if you do this. not sure about stillen diameter. my cai was custom.

It's not going to be 7-10whp on the setup you've got. Megan had a lot more done to the intake tract, and it needs to be tuned for the larger diameter MAF. Also, if you mess up a throttle body trying to DIY a port and polish job, expect to get fisted. Those things are not cheap.

11-23-2013, 02:15 AM	#1 (permalink)
RyanWest Track Member Join Date: Jan 2012 Location: Tamp, Fl Posts: 714 Drives: 2009 Nissan Rep Power: 33	Porting Throttle bodies? I guess my main question here is a tune in need after i port them? Anyone done this? seen gains?

11-24-2013, 10:38 PM	#2 (permalink)
370Z JT A True Z Fanatic Join Date: Jan 2010 Location: United States Posts: 2,905 Drives: 370Z PW 7AT Rep Power: 378	I plan to port mine. Bought an extra set and am going to send them to max bore. I plan to get a retune on. Only member that got this done that I know of was Megan Z. I think he reported gains of 7-10WHP. __________________ Click for My Journal Top Secret \| EVO-R \| Fujimura Auto \| Shine Auto \| Seibon \| MRWorks \| Swift \| SPC \| SSR \| UpRev \| Project Kics \| NST \| Titek \| Eibach \| Nismo \| Whiteline \| Quaife \| Invidia \| Fly1 \| CF Element \| Carbon Signal

11-25-2013, 07:29 AM	#4 (permalink)
Wonka2581 A True Z Fanatic Join Date: Nov 2012 Location: Chattanooga, TN Posts: 3,083 Drives: MY WIFE CRAZY.... Rep Power: 2612	Hmm how much does this mod run?? and will it need a tune after?? __________________ "I have nothing to offer but blood, toil, tears and sweat""Winston Churchill"

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11-25-2013, 01:33 PM	#6 (permalink)
RyanWest Track Member Join Date: Jan 2012 Location: Tamp, Fl Posts: 714 Drives: 2009 Nissan Rep Power: 33	Im running Z1 tubes with stock air boxes. Im wondering if any one can do a DIY on porting these???? 7-10WHP gains seem legit to me