Vortech Blower Insight

anyone can blow up their engine momo, its how rock steady that tune is. personally, i wouldnt go over a 100rwhp increase on a stock block.

 

Wonder what boost he's running. Those are pretty good numbers, especially for a 5.7, but like Steve said, I'm looking to keep my engine all in one piece... for now anyway! Lol!

 

Don't forget that the 5.7's have lower compression so they can run more boost safely.

 

I Am Scared Of Boost! If It Pops Then Thats A Reason To Go Bigger.

 

I said it before Jason and I'll say it again, 115 AT THE WHEELS is an aweful lot for only 5 psi. 558?? Don't know bro, don't know, that's why I had that thread asking if you "vortech" guys were gonna be getting your cars dyno'd.

 

You're right, it's not, I fully agree and raise the BS flag!!

 

#'s are #'s!!!!!!!!!!!!!!! For me, I won't be able to judge anything until I drive it. Let me feel how it responds and drives. Then I will worry about the #'s, if they will even matter to me after driving itopcorn:!

 

It isn't logical because you're assuming a 6.1L is simply a scaled up (in every detail) version of the 5.7L. They're not and comparing them like this is probably not valid. Your conclusion could still be correct. I don't know.

 

I would assume a very aggressive tune on the 5.7 vs a reliable tune on the 6.1 I also think the 5.7 can handle a bit more boost but I doubt its making more power then a comparably equipped 6.1...time will tell

 

A few thoughts. First off, you're presumably comparing different vehicles on different dynos on different days. Weak data at best. I also thought that the 75-85 RWHP gain discussed for the 6.1s was on 4.6 pounds of boost, not 5.5. You're not familiar with the tunes so one could be on the ragged edge of grenading the motor and one could be stupid safe. Lastly, as I mentioned before the 5.7 has a lower compression ratio so it will respond better to boost. Wait for Erik's lower compression 6.1 with blower, its going to blow away any 5.7.

 

Here ya go guys,......not gospel but have fun with it.....
http://www.superchargersonline.com/hp_calculator.asp

 

I am confused where did you see a 5.7 w a S/C making more than a 6.1?
My expectations are to safely make 500 RWHP on the stock block....obvioulsy there is plenty more to be had...but I don't want to push it until the motor is built.

 

The post he found on LX had a guy with a 5.7 that supposedly made 413 rwhp. Ryans made 400 rwhp. But what Adam said I totally forgot...even if its the same dyno different days makes a huge diff...Like I told Ryan a few minutes ago even if its only 400 thats almost 1/3 more power then you were making before...thats gonna be fun!

 

That 413 was on a dynojet........the 6.1 @ 400 was on a Mustang.......to put this in perspective my car only makes 430rwhp on spray on the Local Mustang dyno.......also certain Mustang dynos are worse than others.......if it's a drum like a dynojet it's only a couple of % different than the dynojet.......with the 12" roller Mustang it's a huge difference.

 

Presuming that most stock SRT8s dyno at about 360RWHP on a Dynojet, the above numbers would translate out to 449 RWHP on a dynojet. Weren't those dyno numbers from that 6.1 on 4.6 lbs of boost, not 5.5? Don't forget all the other unaccounted for variables too.

Happy? and why can't the 5.7 guys have their day in the sun? The sun shines on every dog's ass every once in a while, and from all the pics I've seen on here - more often on Jason's.