TB Spacer anyone?

[DEE97GTP]

<blockquote>quote:</font><hr>Originally posted by Patrick Javert:
How exactly wil this help performance? <hr></blockquote>

Not to sound negative, but it won't. I am not trying to rain on anyones parade, but I don't want to see people spending their hard earned money on a mod that they think will give them more performance, when in all likelyhood won't.

If you guys want to keep the TB cool, buy some insulating material. 3/8" Black delrin works pretty well. If you all pitch in and carve it out yourselves, it might cost you all of $15.

I would suggest if enough want it, let one person buy a sheet of it and divide it out. Makes it alot cheaper than buying the material yourself.

DEE

[Dominic]

I agree with DEE [img]graemlins/burnout.gif[/img]

[Jeff Pristelski]

<blockquote>quote:</font><hr> FYI, aluminum is a good heat conductor. So, you are pretty much doing it for the looks then? Cause with an aluminum spacer, the TB will remain nice and hot. <hr></blockquote>

Even if I had the spacers made out of plastic or delrin, they would still have the holes in them that allow for coolant to pass into the throttle body. In other words, it won't make a difference if you make it out of aluminum, delrin or ceramic. The warm coolant will still get pumped through the spacer into the throttle body and warm it up.

Using an insulator will not make any difference on our cars unless we can design a good enough spacer that will restrict ALL coolant from entering the TB. (hence coolant bypass)

If someone can give me some pointers as to which holes do what on the gasket, this can be done.
Then I would consider making them out of delrin... Since it would probably be cheaper because 90% of the cost to make these is determined by how much time it will take on the mill.
However we still don't know if coolant is corrosize to delrin... (It is to aluminum, that's the benefit of anoziding it, not just because it looks cool)

[DEE97GTP]

<blockquote>quote:</font><hr>Originally posted by Jeff Pristelski:


Even if I had the spacers made out of plastic or delrin, they would still have the holes in them that allow for coolant to pass into the throttle body. In other words, it won't make a difference if you make it out of aluminum, delrin or ceramic. The warm coolant will still get pumped through the spacer into the throttle body and warm it up.

Using an insulator will not make any difference on our cars unless we can design a good enough spacer that will restrict ALL coolant from entering the TB. (hence coolant bypass)

<hr></blockquote>

It has already been done. It is the cavity that kind of looks like a mouth. You block that, you block ALL the coolant. Seriously, it isn't complicated. I assure you that delrin is far more resistive to degredation than aluminum. I have had mine on for approx 50k. Just take the TB off and look at it if you still don't know what I am talking about........

This was hashed out about 2 yrs ago from what I can remember. If you all can trace a pattern and use a dremel, jigsaw, then you can easily make a spacer. TIP: Use a TB gasket for a pattern! ;)

I suggest you look at TB spacer info


DEE

[Jeff Pristelski]

<blockquote>quote:</font><hr>It has already been done. It is the cavity that kind of looks like a mouth. You block that, you block ALL the coolant. Seriously, it isn't complicated. I assure you that delrin is far more resistive to degredation than aluminum. I have had mine on for approx 50k. Just take the TB off and look at it if you still don't know what I am talking about........ <hr></blockquote>

That site is actually where I got the idea from. Does anyone know what the other holes are for? (The ones that aren't used for the intake air or screws.) There are 3 other holes, one that looks like the "mouth", one that is a 5/8", and an another oddly shaped hole.

[Coriya71]

<blockquote>quote:</font><hr>Originally posted by DEE97GTP:


It has already been done. It is the cavity that kind of looks like a mouth. You block that, you block ALL the coolant. Seriously, it isn't complicated. I assure you that delrin is far more resistive to degredation than aluminum. I have had mine on for approx 50k. Just take the TB off and look at it if you still don't know what I am talking about........

This was hashed out about 2 yrs ago from what I can remember. If you all can trace a pattern and use a dremel, jigsaw, then you can easily make a spacer. TIP: Use a TB gasket for a pattern! ;)

I suggest you look at TB spacer info


DEE<hr></blockquote>

Guys, I've seen what DEE97GTP has written on the spacer subject here and on the GTP site and consider him the authority on the spacer subject. The coolant res can be cut off. My Delrin spacer was fairly east to produce. I bought a sheet of Delrin at the local plastic store for $23 and was enough to make 4 to 6 (some with the res some without)and took less than an hour each. There is a noticable difference in the temp of the TB but you should use a heat shield of some kind.(In fact I think if youre going through all the trouble, heat wrap your CAI. But thats my $.02

[Jason]

Does blocking off that coolant opening cause any NEGATIVE effects? i dont want to spring a leak anywhere becuase that coolant has nowhere to go...im confused on where the coolant goes if its blocked off?

[chas]

have your machinist make the tb spacers out of delrin. 3/8" or 1/2" is fine. delrin is hard enough that it machines like metal (which is one of its properties). delrin would keep heat from being conducted from the intake manifold as well as block the coolant flow to the throttle body. i believe the coolant flow is on the bottom of the throttle body through a couple holes toward the middle. dont drill those holes. that will 'bypass' the coolant or more correctly, block it. the only reason gm ran coolant through the throttle body is to prevent icing. people who are worried about needing this could simply drill the needed holes in the tb spacer when it arrives (use the tb gasket as a template for hole location).

i would buy one if it was made of delrin. i dont think we need to make the intake path any longer so i cant see the need for a spacer for spacer purposes.

[chas]

have your machinist make the tb spacers out of delrin. 3/8" or 1/2" is fine. delrin is hard enough that it machines like metal (which is one of its properties). delrin would keep heat from being conducted from the intake manifold as well as block the coolant flow to the throttle body. i believe the coolant flow is on the bottom of the throttle body through a couple holes toward the middle. dont drill those holes. that will 'bypass' the coolant or more correctly, block it. the only reason gm ran coolant through the throttle body is to prevent icing. people who are worried about needing this could simply drill the needed holes in the tb spacer when it arrives (use the tb gasket as a template for hole location).

i would buy one if it was made of delrin. i dont think we need to make the intake path any longer so i cant see the need for a spacer for spacer purposes.

[DEE97GTP]

You can always carve into the spacer to allow coolant to flow, but not flow through the spacer to the TB. I don't have that channel in mine. But if you were nervous, you could always put it in.

Oh, the earlier models with the jacked up intake design, I wouldn't go too thick on the spacers. I would stick with 3/8" since you know it works. You don't have alot of room to work with.

I would also replace the studs with bolts, instead of backing out the studs. That is what I did.

DEE