JDTL-S2002

What do they do? lol
i jus dont see how that makes a HP gain?
explain please

FirePR2002

it reduces the heat transfer from the manifold to the throttle body - keeps the air / fuel mixture cooler. Cooler air / fuel mean more hp.

jdjohn84

Cooler air is denser air, which burns (combusts) better. You can take to another level by also using an intake manifold (IM) spacer, which helps keep engine head heat from soaking to the IM, which in turn will help keep the throttle body (TB) even cooler. So, you could use two spacers - TB and IM - to get the full effect. Most folks also do a TB coolant bypass, whereas they re-route the engine coolant (anti-freeze) so that it doesn't flow through the TB; that stuff is hot, so keeping it out of the TB housing helps keep the temp down as well.

Of course there is still 225+ degree air from the radiator blowing over the entire engine, so heat soak into all parts will still occur despite these efforts

01tl4tl

the heat rising off the center of the engine is what really heat soaks the intake manifold and spacer is great there
The one at TB connection insulates and lengthens the total airflow, changing torque slightly
The reduced temp can be measured with about 3-5 hp at the wheels, not enough to throw you back in the seat
They show off when its hot out and at altitude- where it runs like a cold day at sea level
tech info www.outlawengineering.com

JDTL-S2002

Hmmm... so pretty much what im getting at is... is it worth the trouble? and how much work would go into it with the 2002 type s manifold?

jdjohn84

Check out the DIY and judge for yourself. There's one for Thermoblock spacers, which shows both TB and IM spacers, and also cleaning the EGR port while you have the IM off.

01tl4tl

must clean the EGR ports!! about every 75kmiles to maintain best running
Its less than 1.5-2 hours,, at a snails pace

~20 bolts to remove the manifold and seperate TB from it, flip the TB over and clean the IACV, flush the manifold clean of carbon buildup
Install the spacers as you put it all back together
Lube the throttle cables while you are there
Well worth doing if you live where it hits 90+ temps

JDTL-S2002

hah it'll be 90 here in may lol
i may look into it. how much are the spacers generally?

01tl4tl

about 100 bucks direct from www.outlawengineering.com

another maker is P2R, different method but similar idea-

ou sig

I installed the outlaw spacers a while ago (probably 50k)...judging by touch the IM and TB are much cooler, even in the hot TX summers. When driving in the winter I can drive home from work and the IM is still cool to the touch after.
for $100 it is a great little mod, fun and easy to do. And like others have said you can really clean out your IM while you have it off - will be very dirty

jdjohn84

The Thermoblock kit from Outlaw also includes a bypass fitting for the coolant lines, so a nice combo altogether.

webmastir

the only place to get a replacement TB gasket is from the dealership? or is it worth checking local auto parts store 1st?

assclown

iTrader: (1)

i got one from advance auto parts for a couple bucks.

webmastir

oh, thought i remembered someone telling me dealership only. sweet, thx!

JDTL-S2002

is there a DIY about this anywhere? or does anyone have a picture of the part? or part installed?

webmastir

https://acurazine.com/forums/2g-tl-1999-2003-98/diy-thermoblok-spacers-install-egr-cleaning-615644/

all DIYs are listed in here: https://acurazine.com/forums/2g-tl-1999-2003-98/new-official-2nd-gen-tl-diy-thread-706083/

Excelerate

iTrader: (1)

The throttle body spacer doesn't reduce intake air temps, but the thermal throttle body gaskets do. The throttle body spacer basically is an extension of the IM and the thermal gaskets reduce the intake air temps. The P2R setup is a better setup than the Outlaw setup b/c it is overall thicker and it uses two gaskets that are a proprietary heat-resistant material, rather than a phenolic composition.

jdjohn84

Are you saying the graphs (about two-thirds of the way down the page) in the following link are falsified?
http://www.outlawengineering.com/techframe.html
They reflect a 35 degree cooler temp during a 60mph run, and a 60 degree cooler temp at idle after cool down. I don't own the product, but am considering it.

01tl4tl

the Outlaw insulators do exactly that- slow heat transfer from metal to metal

As the metal of the aluminum intake manifold is now much cooler, that equals more dense air by less air temp rise. The steel block of the engine radiates heat thru the metals of block to manifiold

reduction of 100 degrees IAT is normal for the air temp inside the manifold with spacers, it goes up well over 100 degrees in the process of getting there and in the engine

Why is this important?- because there are inlet air/manifold air temp sensors to adjust the air to fuel ratio being fed to the intake..IAT temp rules engine performance

Ever see the drag racers on `Pinks` throw bags of ice on the manifolds between runs?- trying to remove heat and cool the aluminum intakes between passes,,
so it doesnt heat the next batch of air so much= better time down the 1/4 mile

Like the differance between being at 5000 feet and being at sea level

I have the Outlaws and have not tried the P2R which is newer and different technology to get the same idea, reduced air temp due to heat in the metal

the v6 engine pumps heat up and right at the entire intake manifold, thats not cool to say the least

jdjohn84

I'm disappointed that Excelerate never responded to the question about the graphs from Outlaw. With the new material P2R is using in their thermal gaskets, they alone might be as effective as spacers. I know the spacers are also supposed to provide some air-flow capacity benefits, but we're only talking about 1/2" of additional run. If a 1/8" thermal gasket provides the same benefit as a 1/4" or 1/2" spacer, and is cheaper...why not?