Cheap mod.

kicknjeep · #1 01-13-2010, 05:34 AM

I don't know if this is a repost, but if it is then people like myself that haven't seen it can benefit from it. But it appears to be a pretty good mod and for very cheap!!
OK this is not my own idea (thanks BmpnKota) but it looks to be legit and will be doing it to my TB when it gets warm enough.
first do you see the walls around the butterfly valves?, you can see them in this pic

and this pic

I'm not sure how many of you have heard of or done this, but I did it Saturday and I really noticed a difference afterwards. And its very cheap and easy to do.
These cause a lot of restriction. Also in between the two valves is a divider. It's an hour glass shape and flat on top, which is also a lot of restriction.
So I took a dremel
with some cut off wheels and removed the walls. You can see in the first picture above I had already cut one of them off. Once I got them all off, I moved to the grinding bit and got them completely flat and smoothed in the edges around the valves to make them more rounded in. Then, using the same grinding bit, I made the divider in the middle come to a point, instead of being flat on the top.
Once that was done, i took some emery cloth and sanded everything really smooth and rounded by hand.

Then finally, with some MOTHER'S Mag and Aluminum polish, I went over the whole thing several times until it was really smooth and polished.
This is the finished product...

The first time i gave it WOT it HOWLED!! and I immediately noticed a difference. It has better throttle response, more torque, and better top end.
Again wanted to thank BmpnKota for this cool and cheap mod..

xxxcowxboyxxx · #2 01-13-2010, 04:08 PM

well it seems legit. do you have a cold air intake also? or just the stock air box?

kicknjeep · #3 01-14-2010, 05:05 AM

I haven't done this mod yet but when it warms up a bit and I get a little time off I am deff doing it. And the CAI will help as well. this is pretty much the same set up that drag race cars have used for years. Also I have read through like 20 pages from original post and not one negative response on this mod.

xxxcowxboyxxx · #4 01-22-2010, 05:59 AM

i did this mod last night.......immediate difference in throttle response and torque. thanks for the information, and i suggest to anyone to do this mod.

kicknjeep · #5 01-22-2010, 06:58 AM

Darn thought i would never find a Guinea pig LOL, seriously though as soon as i get the tranny rebuilt this mod and plenum kit are next on the list (along with the intake mod).

ROOKIE1673 · #6 01-22-2010, 01:37 PM

i also did this mod last night. it turned out really nice.. did not get it back on the truck yet. but im sure there will be a difference. once i figure out how to post some pics. i will but them on here...