Anyone know what they do to get 400 RWHP on an LS1 long block?

 

forced induction?

 

well they said they got those results from an 01 Z06 so they had a beter starting point then a ls1 (hp wise), figure an Z06 with long tubes, exhaust, full good bolt ons, aggressive tune... that seems to be possible

 

It says they have a 400rwhp LS1 x-package. Don't know how they can do this, because I've never heard of a 400rwhp LS1 without heads/cam. What kind of magic dust are they using?

 

wow and the packages just start at 4k dollors, i am very interrested in this.

 

yeah i have never seen real fact that anyone has been able to do this on a stock ls1 longblock. there are a few whom have brought it up. but no real proof.not saying it cant be done. just a scretch.

 

400 fwhp I'd believe...but rwhp...I don't know

 

Maybe they up the compression but dont change the heads and include longtubes, true duals, lsx90/90 and a nasty tune? That would be my guess...but who knows

 

maybe higher ratio rockers -fast 90/90 - great exhaust and maybe you could do pistons or mill heads for 4gs. My buddies zo6 dynoed 360 stock so you only need 40 ish whp

 

HOW? i mean they are reluctant to even list how their doing it ..seems like bs to me

 

i call it bullshit, i used to take my car there till they fucked me over. they say they dont mess with the heads but i know that they at least have rocker arms. DON'T FALL FOR THIS

 

Yea didnt even think of higher comp. pistons, hell they must do something like that if they are charging 4 grand lol.

 

If its too good to be true it usually is, but every now and then sometimes things are too good to be true. why do they only do it inhouse, that would get me thinking twice.

 

This came up a while ago, and one of those guys came on here and posted. It seemed like total BS to me at the time, and still does. As far as I know, no one has made 400 rwhp with stock internals on a LS1. On a LS6, I think it could be done. I wouldn't buy anything from those tards.

 

OK "Speed Engineering" (LS1TECH Sponsor), here's your chance. You can tell us what you plan on doing to the engine (like other specialty shops do) and gain credibility with this group, or you can ignore this thread and confirm in everyone's mind that it is BS.

Your choice!

 

News flash there buddy they are not an LS1TECH sponsor.

 

speed engineering is a sponsor here

 

Pretty sure they're different companies.

 

They are different companys, speed engineering and dyno is located in Decatur, TN. Speed Engineering (LS1Tech sponsor) is located in Fresno, California.

 

Wrong "Speed Engineering"