so i bored my stock TB and did half shaft, thoguht i'd share a pic,...
and yes i forgot to trim the screws, its done now - so i dont wanna hear it, lol


[IMG]local://upfiles/37714/90C050A05FBE472F8515EC023FDF4E40.jpg[/IMG]

[IMG]local://upfiles/37714/42677DF6CE044CA281AD5C0984B583CF.jpg[/IMG]

 

So whats the bore now? Before and after pics would have been nice

 

what exactly do you do to bore a tb?

if its worth it i'll do it when i port my intake

it's free!!!!

 

Not exactly a how to for our neon, but THIS should give you some idea.

 

!

so how much should i bore my tb?
i have the 52mm tb


could i get it to 55/57?

 

ill get a few pictures of how far i went with it compared to another stock ATX, its not s huge difference, but it helped the topend, i had to grind down the throttle stop a little bit to bring the idle back down, used a small cut off wheel to cut the shaft and trim the screws down, then put thread lock on the screws to be sure they wont fall out
heres a before picture, you really cant tell any difference, ill get some to compare it from the bottom side, thats where you can see it cuz they taper down towards the bottom

[IMG]local://upfiles/37714/BB5DE6EB10B74DFA94E9211A0CD06708.jpg[/IMG]

 

use a dremmel

 

I wouldn't recommed the using a dremel. To time consuming and you would need to be real careful with it. Stay away from the area where the throttle plate seals against the side walls.

 

the last one i did with the dremmel for a buddy worked out pretty good,
im dremmeling mine so that it can port match the intake manifold once its done. the tip i got looks like a little circular saw blade except its about an inch tall....works real good on cutting the aluminum down real quick and works real good on edges....if i dont sell the DOHC head ive got, them im gonna port and polish it up while im at it

 

i used a cylinder hoan, it takes it all out evenly and keeps it a perfect circle, took me about 30 minutes to take it off, ream it out , cut the shaft & put it back together, a dremel would probly make it rough & not flow all that great. turbulance is power loss, every little bit counts