Cerwin Vega Fan

I have heard this is one of the so called free mods that can be done to the LT1 motor. I was wondering does it actually help performance in any way so I will know if it is worth my time doing. Also is their any cons to doing this that I should know about?

Thanks,

Chris

94formulabz

Yes, Ws6.com

In theory your TB could Ice up in sub zero temperatures, in theory........

CamaroBoy96Z28

Gained me almost 1 mph in the 1/4. I'd say its the best mod you can do for free.

MentalCaseOne

Before the TB mod my car would loose some power after fully warmed up. After the TB mod my car has been running with the same power as when first fired up in the morning.

Hasnt failed me in the past 4 years since I did the Mod. Made my power more consistent across the temp band. Great Mod and it was free for me.


Marvin

rlax31

I believe this is the general consensus, won't gain you hp, but keep you from losing it.

Some say it's good for gaining 7rwhp, some say it doesn't do anything, so it's kind of a compromise

It's possible your car could be hard to start in very very cold temperatures, but I havn't heard of anyone actually having this problem, and there are many members from Canada....

shoebox

Think about it. When your car sits overnight everything cools to the same temp, bypass or no bypass. There is going to be no difference at cold start up. The only time it can have an effect is when the coolant is warm.

revtime

The idea is in very cold temps the air coming in to the engine would be so cold it would ice up the throttle blades, iceing of the throttle blades could lead to a stuck throttle so GM routed coolant through the throttle body to prevent this just in case it ever happened.

HM Murdock

Might wanna read shoebox's post, he nails that thought to the wall...From what I understand, it is to heat up the air that actuall enters the intake, helping emissions.

Mir Hussain

I really dont think so it will give you any HP
I have that mod I dont think so I have gain a squat
I also didn't had any problem, and I live Kanada

revtime

So coolant flows through the Throttle body to help emissions? ....riiiiiight.
So tell us Shoe why exactly did GM route the coolant through the TB?
I,m curious now, everything I,ve read said it was to keep the throttle blades from iceing.

MentalCaseOne

Think about it. It helps the gasoline to atomise to smaller particles and also will keep the gas from condensing on the pistons and cylinder walls. Smaller gas particles help in completely burning the gas (less emissions at the tail pipe) and help generate more power from a more complete combustion, helping in fuel economy as oposed to horsepower because of the hotter air entering the engine will reduce total air volume in the chambers at the combustion cycle.

There is nothing secret about it. Specially in Cali. My old ford with a 160 stat did not make it through the smog sniffer. Switched back to the 180 stat and got my emissions test to pass.

Its less than a problem with fuel injected engines though since the gas is forced fed by the injectors in small particles already but then if you dont believe it then theres nothing I can say to change your mind.

The drawback is that Hot air is less dense and kills horsepower... why you think horsepower took such a big fall in the seventies when the cars became emissions compliant??


Marvin

HM Murdock

Yes, right.

Cerwin Vega Fan

So how is it suppose to raise the level of HP?

HM Murdock

Cooler air is denser than warmer air, and containes more precious precious oxygen. More o2=more lbs-ft

Cerwin Vega Fan

I thought coolant made it cooler?