dutch 99 chevy

what all does it do for the truck when you port and plish the t/b, does it give you a little more power and air, some one tell me.

GREGGO

iTrader: (2)

It takes te lip that the blade sits on out and cuts the angle down a little. It does increse it by about 4 to 6 mm. It smoothe aout the flow a little. I did notice a little better respose out of it, but I don't realy think it is worth a measureable amout on the dyno. My opinion, if you were gonna pay someone $100 bucks or more to do it, it better come with the T/B. I paid much less than that for both. But the guy that did mine doen't want to make a bussiness out of doing it. Yet...

Greg

EDIT, it also takes the lip that the tube connects to down to create a smoother transition from the intake tube to the T/B.

<small>[ August 28, 2002, 04:48 PM: Message edited by: Fast4.8 ]</small>

Maxmumboom

I did mine myself. I ported it with a dremel, then sanded it to make it semi smooth. I then took a small polishing wheel and a drill and polished it out. It looks damn good, i have yet to do the tb grind, i have ti find the thread about how to do it, ill gt back to ya on that, its still raining here so i cant test drive it.

XLR8NSS

iTrader: (4)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Maxmumboom:
<strong>I did mine myself. I ported it with a dremel, then sanded it to make it semi smooth. I then took a small polishing wheel and a drill and polished it out. It looks damn good, i have yet to do the tb grind, i have ti find the thread about how to do it, ill gt back to ya on that, its still raining here so i cant test drive it.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Maxmumboom - Good luck on the test drive, It's supposed to rain until Friday/Saturday for us over here on the east coast but, we needed it. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

My used truck came with a ported TB which was one less thing I have to do. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" /> I'll try to get some pics.

John

hihosilver

how do you go about doing the bump grind....this is the first i've heard of this mod <img border="0" alt="[chug]" title="" src="graemlins/gr_chug.gif" />

XLR8NSS

iTrader: (4)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by hihosilver:
<strong>how do you go about doing the bump grind....this is the first i've heard of this mod <img border="0" alt="[chug]" title="" src="graemlins/gr_chug.gif" /> </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Here ya go. This of course is on a car but, everything is the same for the trucks.

Bump stop mod

John

DuckOfDeath

If I were to buy an aftermarket throttlebody, such as the BBK, is it ported, and is it be modified so it opens up closer to 90 degrees as well? Is that essentially what you are paying for when you buy the BBK?

XLR8NSS

iTrader: (4)

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by DuckOfDeath:
<strong>If I were to buy an aftermarket throttlebody, such as the BBK, is it ported, and is it be modified so it opens up closer to 90 degrees as well? Is that essentially what you are paying for when you buy the BBK?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">The BBK is a totally different TB. It is not just a ported stock unit. It is also bigger right outta the box so no porting is necessary. I think you would have to check to see if it opens 90 degrees since everyone seems to have different amounts of throttle travel(production tolerances?). I have no personal experience with the BBK but, have never heard anything good about it. It seems to have multiple problems. A search in the External Engine section would probably turn up some info. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

A ported stock TB is plenty, an aftermarket unit is a waste of money IMO. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> Use the money you save towards a pulley or cam. <img border="0" alt="[devil]" title="" src="graemlins/gr_devil.gif" /> <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

John

DuckOfDeath

Thanks for your input, John - that's great information! <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />

Travis

BigTex

iTrader: (16)

I used a dremel for mine. I ground out all the large imperfections and that little "ridge" in there, then took several different grits of sandpaper and hand polished it to a nice smooth finish. Cant say that it made more power, but I liked doing the work.