Should I keep pushing my ls6?
Thread Starter
Instructor
Joined: Dec 2008
Posts: 229
Likes: 3
From: wilmington delaware
Should I keep pushing my ls6?
I just recently picked up a D1 and dont know if I should pull the trigger and put it on. Just got my car retuned by race proven motorsports on full meth about a month ago and it put down 698 whp 578 tq at 10 psi. Car runs great and I know im prob pushing it as it is but I want to hear from some guys who pushed the stock ls6 and see how far they went. I was just going to leave the boost the same and just put the D1 on. Let me know what you guys think.
Thread Starter
Instructor
Joined: Dec 2008
Posts: 229
Likes: 3
From: wilmington delaware
Oh yeah heres my setup.
2001 stock long block with close to 90k on it.
custom cam
90/90 manifold throttle body
p1sc kit with side mount intercoolers
60lb injectors
dual nozzel methanol injected
2001 stock long block with close to 90k on it.
custom cam
90/90 manifold throttle body
p1sc kit with side mount intercoolers
60lb injectors
dual nozzel methanol injected
Team Owner
Joined: May 2006
Posts: 21,473
Likes: 356
From: Palmdale, Ca----- 2009 Cyber Gray 4LT A6 F55 452 RWHP 422 RWTQ- RIP 1998 C5 734 RWHP & 585 RWTQ-----
If you leave the same pulley you will be looking at right around 4.5+ PSI and a lot more volume!
I'd say do it but be conservative or you might toast your motor. I slapped on my D1 but installed a dual nozzle over my single nozzle Meth, and I am in the process of installing a second fuel pump set-up for fuel!
Fuel is the most important! You need plenty of fuel to feed the beast!
Thanks,Matt
Thread Starter
Instructor
Joined: Dec 2008
Posts: 229
Likes: 3
From: wilmington delaware
Yeah my tuner told me I should be good and the car runs great right now. I couldnt ask for any more but you always want that little extra haha. I just wanted to see if anyone was really pushing the ls6 over 700 and it holding up for a little while. User_name what was your setup when you made 714? Also I figured using the same pulley I would be at the same boost with the D1? Im not trying to get greedy and go up 4 psi if thats whats gonna happen ha.
Melting Slicks
Joined: Feb 2006
Posts: 2,163
Likes: 5
From: Houston
Yeah my tuner told me I should be good and the car runs great right now. I couldnt ask for any more but you always want that little extra haha. I just wanted to see if anyone was really pushing the ls6 over 700 and it holding up for a little while. User_name what was your setup when you made 714? Also I figured using the same pulley I would be at the same boost with the D1? Im not trying to get greedy and go up 4 psi if thats whats gonna happen ha.
Le Mans Master
Joined: Oct 2005
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From: Metro Detroit Michigan
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Safety Car
Joined: Jul 2005
Posts: 4,205
Likes: 2
From: Chicago-NW Burbs Illinois
Almost 700rwhp @ 10psi is pretty impressive. I would save for a motor just in case if you go with the D1 and plan on raising the boost....which I'm sure you'll want to do. If the motor goes, build it bigger and better! 
Melting Slicks
Joined: Mar 2007
Posts: 2,158
Likes: 1
From: Always In Front, Colorado
It's not a matter of IF, it is when it will happen. I was at 657/562 running a P1 with meth 8psi on my all stock LS6 and it made it around 14K miles. Lost ring land on 2 and 5. I am currently breaking in my new forged 383 that has a D1. With the larger cam, C.I. and another 4-5 psi with all the supporting mods we are hoping for around 800.
Keep going till it goes, just hope that when it does it is not catastrophic to the engine block, etc. I was lucky and it did nothing to mine.
Keep going till it goes, just hope that when it does it is not catastrophic to the engine block, etc. I was lucky and it did nothing to mine.
Thread Starter
Instructor
Joined: Dec 2008
Posts: 229
Likes: 3
From: wilmington delaware
I forget the specs on my cam but yea I have a bap and a racetronic intank pump and then the dual nozzel meth setup. Yeah I was making 680/550 before the little retune and have about 4k with it like that. I dont know how other people drive but I really like running my car and has been very dependable. Thats awesome your pushing that many pounds of boost! 17 psi is crazy and im over here worried about 10 haha.
Melting Slicks
Joined: Feb 2006
Posts: 2,163
Likes: 5
From: Houston
Team Owner
Joined: May 2006
Posts: 21,473
Likes: 356
From: Palmdale, Ca----- 2009 Cyber Gray 4LT A6 F55 452 RWHP 422 RWTQ- RIP 1998 C5 734 RWHP & 585 RWTQ-----
Yeah my tuner told me I should be good and the car runs great right now. I couldnt ask for any more but you always want that little extra haha. I just wanted to see if anyone was really pushing the ls6 over 700 and it holding up for a little while. User_name what was your setup when you made 714? Also I figured using the same pulley I would be at the same boost with the D1? Im not trying to get greedy and go up 4 psi if thats whats gonna happen ha.
You will be looking at 4.5+ PSI extra of Boost!
Thanks,Matt
Instructor
Joined: Nov 2008
Posts: 227
Likes: 4
From: Austin Texas
Wow!
This all makes me feel better. Here I am at 10.2psi stock bottom end with 540HP at the wheels thinking to take it easy. Those are great numbers gentlemen, way to go!
But like mentioned earlier, a lot comes down to the tuning. More gas, meth, fuel pump to back it up, etc. I'm kinda curious on your IAT's and what there running? I'm thinking very hard on meth/water injection just for insurance only or some type of FMIC sprayer to help. It's been 103 degrees here in Texas almost everyday this week and not into summer time yet!
But like mentioned earlier, a lot comes down to the tuning. More gas, meth, fuel pump to back it up, etc. I'm kinda curious on your IAT's and what there running? I'm thinking very hard on meth/water injection just for insurance only or some type of FMIC sprayer to help. It's been 103 degrees here in Texas almost everyday this week and not into summer time yet!
Safety Car
Joined: Apr 2000
Posts: 4,326
Likes: 140
From: Weatherford, TX
Mine let go after a couple years of pushing 700rwhp. No warning signs, it seems like a rod or piston just snapped and caused a chain reaction of destruction inside the motor. Oh well I couldn't see fixing a perfectly good motor, and now I can. 
Melting Slicks
Joined: Feb 2006
Posts: 2,163
Likes: 5
From: Houston