Twin turbo 5.3 torture test!
#31
MASS seller approved
iTrader: (3)
Join Date: Apr 2011
Location: Mukwonago, Wi
Posts: 324
Likes: 0
Received 0 Likes
on
0 Posts
The reason they changed the heads was so they could make a big horsepower number, can't really make 1300hp on small heads and nobody wants to read an article without a big hp number. Basically it looks like whatever you can fit through a stock head the rotating assy can handle. Wonder if the reason they stopped was because of the fuel bill 70 runs is impressive.
In the end it's all in the tune up...
In the end it's all in the tune up...
#33
TECH Senior Member
iTrader: (10)
Join Date: Oct 2004
Location: Crystal Springs, MS
Posts: 14,068
Likes: 0
Received 2 Likes
on
2 Posts
The reason they changed the heads was so they could make a big horsepower number, can't really make 1300hp on small heads and nobody wants to read an article without a big hp number. Basically it looks like whatever you can fit through a stock head the rotating assy can handle. Wonder if the reason they stopped was because of the fuel bill 70 runs is impressive.
In the end it's all in the tune up...
In the end it's all in the tune up...
While thats true.. that would have been a fine example to sell trick heads..
comapre them to the stockers. Show how much they are held back..
#34
Im still impressed they got 500+ out of it NA while dropping .5 from the CR. Pretty big cam and heads for a 5.3L. Looks like Im not gonna hold back from 10-12psi on my 170k+ mile engine. Should be good for 500hp and drive and act like stock since Im not gonna touch the long block.
#36
TECH Fanatic
iTrader: (14)
Join Date: Jul 2008
Location: flemington nj
Posts: 1,103
Likes: 0
Received 0 Likes
on
0 Posts
Im still impressed they got 500+ out of it NA while dropping .5 from the CR. Pretty big cam and heads for a 5.3L. Looks like Im not gonna hold back from 10-12psi on my 170k+ mile engine. Should be good for 500hp and drive and act like stock since Im not gonna touch the long block.
Thread
Thread Starter
Forum
Replies
Last Post
03regcab sierra
Dynamometer Results & Comparisons
20
08-03-2015 12:11 AM