I'm still waiting for info from Nick at thorleys, there is going to be a limit on the headers, I'm not sure how many, I say 100 the most. as for the price, I wii find out on monday hopfully.

 

if were looking at under around 650 or under on these count me in

 

Dyno today?

 

results please!!!!! the ls4 mod community hindges on this lol

 

hey everyone I just spoke to nick, they are finishing up the headers, it will be on the dyno by Wednesday the latest, they said they are going to see big gains in HP, he will try to send me pictures today once I see them then I will post them up right away.I was hoping to see the results today as well, I'm really sorry. Thanks William

 

Arg!!!!!

 

Bah!!!!!

 

 

Holy crap I’m not even getting these and the suspense is killing me.

 

 

i agree...once i see numbers i may join the crowd though lol

 

yep, waiting to see what is measured.

 

This being the first 300 hp+ vehicle I've ever owned (drove a friend's '98 Z28 once), the prospect of getting more power and making it faster....

I can't wait. Are they gonna be contacting those of us on the list by phone, I'm guessing? Or would I also need to give you my email address?


I should have checked back sooner, for updates.

 

I'm really exited as well, They will call you once there ready to be shipped out.

 

this is impresive, I'm glad to see the LS4 community is working hard for some mods

I'm still working with the 3800, and everyone tells me to stick with it, but I want a LS4 in my Series II GP

Soon.... very soon.....

 

Sooo....what type of steel will these be made of?

 

KissmyDSM,

Given that you have the HP tuning capability, have you tried putting a 3.25" pulley on the blower (I didn't see a pulley mod listed in your sig)? I ran a '99 Regal GS at the track for a few years using a 3.25" pulley with a shorter Gatorback drive belt along with a couple of fuel system mods, and it did pretty well.

Sorry gang, no updates from Nick at Thorley yet!!

 

Nick and I have been texting this evening...here is the latest from Nick's text messages to me:

"No luck yet [did not get on dyno today]...headers got completed today so we are running it [your car on the dyno at] at 6:30 AM tomorrow when it is nice and cool out...will be in touch [with you] then."

 

sweet, Nick and I will be in contact tomorrow.

 

Yes, I have a 3.4 on it now. I just haven't updated the mods list. I have some more stuff done to it, but haven't dynoed it or taken it to the track so I have no clue what I am running. As long as my wideband looks good.

I had the 3.8 on for a long time as I wanted to learn the basics of tuning when I could do the least damage to the 3800. Also to help out others with the tunes. I have the tunes set up for all temperatures for certain mods from the 3.4, 3.5, and 3.8.

I'm building up another transmission right now. I'm debating on going with the LS4 swap or continuing with my 3800 build with a GenV or Turbo.... if I go GenV or LS4 i will probably get a custom 1500 stall converter built by Triple Edge Performance, if turbo.... 3500-4000... probably also from TEP.