Porting your own TB
All you need is a sanding drum with a couple very course sandpaper rolls and then a couple fine rolls. If you want to polish it then you'll need some much higher grit sandpaper which I do by hand (all the way up to about 1500 grit) then polishing with a buffing wheel and some polishing compound. I don't think there's any performance advantage from polishing...more of an appearance mod.
Wonder if porting is even worth it ... I would think at most it would give 5HP ... maybe. Think I'll just get some sandpaper and do it by hand (don't have a sanding tool/dremel). Might take over an hour, but I'll have a lot of time on my hands tomorrow, lol.
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https://ls1tech.com/forums/generation-iii-external-engine/724149-ported-tb-sale-40-shipped.html
Went through this guy and was extremely happy with his work and the quick turnaround
Went through this guy and was extremely happy with his work and the quick turnaround
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Originally Posted by dyls1
https://ls1tech.com/forums/showthread.php?t=724149
Went through this guy and was extremely happy with his work and the quick turnaround
Went through this guy and was extremely happy with his work and the quick turnaround
I ported mine and a few of my buddies. I usually use sanding rolls, and it takes a while with just using them. I've got a spare one laying here and might try some sort of metal bit. After using the sanding rolls, I'll take some fine grit sandpaper and smooth it out, not really polish it to a mirror finish, just to clean it up and make it a little smoother.
I have posted up ways of porting your own so you can look around for them and other threads about how to do it. I can port em, Tim can port em, New Era can port em.....and the list goes on....
BTW, a properly ported TB will have the gains in the link in my sig
BTW, a properly ported TB will have the gains in the link in my sig
9ball - You will NOT be able to do it by hand unless you plan on using something like a 50 grit and spending about 10 hours but your fingers will be raw long before then. As for the bump stop mod (the 90* opening) it's a good idea and easy to do. You have to be careful with that. If you go even 1/4 of a degree past 90 then you'll trip a SES light. Best way is to read the TPS voltage and sand it down a little bit at a time to ensure you don't go past the 90*. I don't remember the exact voltage to stay under (volts rise as the throttle opens) but do a search and you'll find it.
I say let the guys who know how to port them do the work, it's worth the peace mind knowing that it's done properly. also not taking the risk orf ruining your tb & have to buy another one anyway. I used Tim from performace throttle body & he did a great job, all did was bolt it on & have had no eng. light issues & the car has better throttle response. I highly recomend him.
Yea its definitely a very worthwile mod that has price per hp gains around $8 per rwhp. those gains are close to nitrous for those numbers. I know we have been talking in pm's and you say you have an ls2 tb. Its impossible to do by hand, i know me and Bo can both attest that even with a very aggressive metal bit, then aggressive sanding rolls on a air die grinder these tb's take us over a couple of hours. The ls2 tb is about 2 times as hard to port compared to an ls1 as well. It wont hurt to try but isnt possible, If your going to do it yourself at least pick up a dremel or die grinder, It will cost more then sending your tb out to one of us, but then you have another tool to use for other jobs. Tim
