Vararam velocity stacks

[protruk]

Has anyone tried the Vararam stacks for V8 TB. http://www.vararam.com/
And do they work?? They claim 3mpg, up to 15hp, and 23lb-ft of torque..
OR

[Hay Hauler]

sounds good, but I would wait and see when someone dynos with it

[protruk]

They have a 5.3 dyno on their web page. No HP gain but 23lb-ft of torque. With my little 4.8, I need all the torque I can get.. For $49.00 I might try it. I'll be the ginny pig.

[Hay Hauler]

29.95 leaves 20 to put towards a dyno

[BigKID]

There was an extensive thread on ls1tech a while back about it. I think the general consinsus was Just go buy a carbide bit for you dremel and some fine grit paper and p/p you throttle body.
btw... look back at their dyno graphs and look at the a/f ratio between the two runs. Something a little fishy going on there.

[Hit Man X]

Originally posted by BigKID@Dec 16 2003, 09:22 AM
There was an extensive thread on ls1tech a while back about it. I think the general consinsus was Just go buy a carbide bit for you dremel and some fine grit paper and p/p you throttle body.
btw... look back at their dyno graphs and look at the a/f ratio between the two runs. Something a little fishy going on there.

Yup, the A/F is WAY off between the runs. As BigKid stated everyone raised on it and if you buy it we will laugh at you.

[BeyondCustom]

Don't know any real world answer for it..but from what I have heard is.. your reducing the size of your throttle body...turning it into a velocity stack... thus at lower speeds moving less air faster = torque.

but you can starve up top..... so no top end improvement. save yer $$$$

[protruk]

Thanks guys, I won't buy it.Ilooked at the TB on my truck, and it looks lke GM changed it from the 2000 I had. The new 2003 is wire controled unit, but the inside's different aswell. It has a lip on the bottom of it.
I guess to ramp up the air between the blade??