Throttle body coolant bypass

[SappySE107]

Yeah, it has worse cooling at the bottom of the cylinders but you can get away with it if you don't fill it up too much. If you could reroute all coolant away from the intake manifolds and used phenolic to seperate the intakes from the heads/block, you would reduce heat soak. Getting a real cold air intake will also cool off the intake manifolds. When its just the throttlebody though, you have to sit for a while for it to get heat soak that bad.

I don't follow thigns because the majority agree on it. I bet a lot of V8 owners think the TPS enhancer is the shit too. For a while the 3400 TB heat shield was getting a lot of attention on the N body boards. Heat soak was the issue again and people though that crossover was heating up the TB which would heat up the air. Hahaha, yeah right. Like sticking a heat shied in a grill below your brats. Think they won't get hot?

[EspanolaGuitarista]

Well...

...that is what I going to do. I'm going to make some gaskets out of 1/4 phenolic paper. Block off the crossover and make a TB gasket too. Then I'm putting in hood louvres too. See if can get air to flow around the intake a bit. Easy horsepower is what I'm thinking. The TB seems to get most of the heat from the exhuast. I bet if spent 30.00 on header wrap I could cool the intake charge down by 30 degrees or more.

[IsaacHayes]

I don't get the CAI setups that use metal tubes even if the filter is in a cool location. They say the metal reflects the heat. Well maybe but it also conducts heat. I say a plastic tube, with metal around it with an air gap might be better. Or the insulation bubble wrap foil stuff. Or just plastic. Plastic/rubber is an insulator. But what do I know..

[napatiger]

So, has anyone bypassed the LQ1 TB coolant line, how hard is it?

[IsaacHayes]

To by pass any TB coolant, you just get a small pipe, disconnect the two hoses from the TB, and slip the pipe in, clamp it down and youre done. Nothing to it really.

[SappySE107]

Yeah right. Come do my DOHC then:P Its not even close to that setup. Nico bypassed the TB coolant on the cutlass I had and it totally fucked up the coolant flow. Heat up, cool down, repeat. It didnt like to stay steady. Don't bother.

[IsaacHayes]

Hmm. It must be a really wonky setup then on the LQ1. I figured it'd be just simple like the 3400's. How could they make it so complicated? Well GM isn't perfect heh.

[bwwelk]

Hey you guys that are doing this mod. Allthough this is a dyno on a v8 im sure on a v6 you would get at least half of that maybe.

[ez112]

The set up on a 96/97 needs more of a PLUG rather than a piece of tube.

[z34phoenix]

well on my 96 i just took a SAW to the lower section of the intake piece that the TB attaches too... i cut the section that holds the pipe for the Coolent. then i just attached that tube to the lower intake.

but if your not cuting the intake piece, the only other way to keep coolent out of the TB is to get a plug, a gasket to cover the opening to the TB.... or if it works, you can stick a piece of smaller pipe into the stock piece to block the passage .

but yeah it is a completely diff system then on the 3x00 engines.

pic of new hose and bracket bypassing old setup. later i used Quick Steel (similar to JB weld) to secure the section of pipe to the lower intake so it wouldnt pop out.

i dont know if it gave me any gains, cause it went in with my P&P upper intake and TB. but unless your in a cold climate, i wouldnt think it would do any harm. but if you are going to do it, i would cut the piece off, other wies, you will still get heat soak from the pipe into the intake arm. the section of the coolent in the TB is very small. and if your already runing a cooler Tstat, the diff will be impossible to see. I like it cause i can pull my TB off without spilling coolent all over the place. so cleaning is easyer.

[ez112]

Well in my situation, I'm not even going to have the old intake arm when I'm going to worry about it. A whole new arm will be in place and then I will need to plug up the hole I will leave.

Ah well I'll find something.

[z34phoenix]

ummm What? you started drinking early today huh? lol just playin....

if you make or have a new intake arm made, you wont have to worry about the TB coolent then. you can just run the coolent line directly to the lower intake. just like my last pic. your new intake will just go over top. dave96Z34 made an adapter to hold in that lower coolent line. but again i later just used that quick steel epoxi to secure the pipe to attach the hose.