LS1TECH - View Single Post - How much can the stock bottom end handle?? explained

1 Bad Z · 08-14-2006, 07:54 PM

On a stock LS1 shortblock, as long as you know how nitrous works and how an engine uses it, You should "S-shape" bend all 8 rods and wristpins from the cylinder pressure of a big shot of nitrous like I did before you burn ANYTHING up.

I have had 2 '98 vehicles with stock shortblocks and 300-350hp worth of nitrous with over 60k miles on the clock. Might of burned a strap on a plug every now and then that's about it. Was just seeing how far I could push the stock fuel system/Walbro pump set-up.

Tip: '98 stock pistons actually have a thicker top ring land than a 2001-up.

Heres a video of my 70k mile stock shortblock/300 shot car 1.30 60 footin on the back tires. It is a prime example of how far on the ragged edge the tune was. The air was so good out there that night I actually got on the lean side and burnt my first plug (watch at the end of the pass) Notice it looses a plug before the win light comes on and it still ran a 9.70 on that pass. I just got a little greedy and really wanted to beat the guy so I jacked up my bottle pressure to about 1175 after the purge!

http://www.iconautosports.com/media/...e_chevelle.wmv

08-14-2006, 07:54 PM	#12
1 Bad Z TECH Resident Trader Rating: 8 Join Date: Nov 2001 Location: Stafford TX Posts: 878	On a stock LS1 shortblock, as long as you know how nitrous works and how an engine uses it, You should "S-shape" bend all 8 rods and wristpins from the cylinder pressure of a big shot of nitrous like I did before you burn ANYTHING up. I have had 2 '98 vehicles with stock shortblocks and 300-350hp worth of nitrous with over 60k miles on the clock. Might of burned a strap on a plug every now and then that's about it. Was just seeing how far I could push the stock fuel system/Walbro pump set-up. Tip: '98 stock pistons actually have a thicker top ring land than a 2001-up. Heres a video of my 70k mile stock shortblock/300 shot car 1.30 60 footin on the back tires. It is a prime example of how far on the ragged edge the tune was. The air was so good out there that night I actually got on the lean side and burnt my first plug (watch at the end of the pass) Notice it looses a plug before the win light comes on and it still ran a 9.70 on that pass. I just got a little greedy and really wanted to beat the guy so I jacked up my bottle pressure to about 1175 after the purge! http://www.iconautosports.com/media/...e_chevelle.wmv __________________ Mike @ Icon Autosports First Stock Shortblock to run in the 9.6's 9.69@135 which should be #13 on "The 25 Fastest LSX's in Texas". Also should be #4 on the list with "PaiN's" formula which held the nitrous LSX record with an 8.57 YEARS ago..but the moderator of that has his "favorites". Not a LS1Tech 8 second club member or builder but I am in the real world! Last edited by 1 Bad Z; 08-14-2006 at 08:00 PM..