I'm really close to pulling trigger on tvs 1900 for 2010 crew can 4*4 sierra. What kind of rwhp numbers will I see ? Mods are Doug thorley tri y no cats 3" Magna , kn filter . I see the 14 are getting 410-415 rwhp ,!
Thanks

 

not shure but mine runs good enough to kill the 6l80e once and the 2nd one in need of repair....

 

Go for it you won't be disappointed!

 

My 2013 made 365rwp with catted kooks and a giant pulley with a very conservative tune.

 

Giant as stock 3.4 pulley? Thx

 

It's all in how the rest of the truck is built. I make about 600 to the wheels with a 6.0 and a 1900... and I'm not the only one.

I think with a 5.3 you should be able to make 550 fairly easily. But it will take a cam and a pretty small pulley.

 

What is the stock pulley magnasun sends with tvs1900 ?

 

If i remember correctly mine came with a 3.6

 

What pulley to achieve. 8 psi? Thx

 

im getting 8 with the stock pulley on a 5.3