High compression ls1. I would put a set of trickflow heads on it and keep the safety margin for the premium unleaded fuel. 4:1 Compression (I calculated this, Probably wrong lol) MSD Atomic Intake Manifold Nick Williams 102mm TB Stock MAF 42lb Greentops 1 3/4 Headers, catless mid pipes, 2. Looks like a lot of folks are running 11. I want to get atleast 11. Custom build YOUR LS1 into one of our Forged Engine Packages which is the perfect upgrade for high RPM naturally aspirated OR boosted applications. Thus intercoolers and methanol injection systems. With a head-cam-408 the same pulley setup gets about 5 lbs. 900" bore specific offering. I just figured if I was going o pull the motor Dec 7, 2022 · We build a 427-inch LSX engine with an iron block and Chevrolet Racing high-compression COPO pistons to make 661 hp on Westech Performance’s Superflow dyno. CFM flow drives power, not manifold pressure. I have been able to find very little on the subject as everybody seem to build pump gas motors. I'm wondering who around here is running higher than stock compression. 4:1 to 11. Oct 18, 2023 · Cheapest route to high compression JY LS. The mighty LS1 has proven to be one of the strongest, Most reliable & efficient engines that produce HUGE power. Just proceed slowly and deliberately with the tune, and you'll be fine. I. Any additional input on why? Jun 1, 2015 · Looking to get input on building a high comp ls. So here is a video of old idle clips from the low compression motor and the high compression motor for comparison Diamond Racing High Compression - Dome Pistons for the Chevrolet LS1 Engine. 6:1 compression ratios on LS engines without issue from what I can tell. What happens is the inlet air temps will rise when you compress the air more. 5 PSI on the headers-only LS1. 3-11. I want to get the most compression out of it without having switch from pump gas. But without knowing how far down the pistons are in the hole it's impossible to figure exactly what you'll have for a final ratio. 6 to 1 static compression on my current car, but things were different back in 2004-2009 and I was running 91 octane. 5:1 out of it, possibly more if i can. Boostane works though if you decide to go the compression route. If you tried to run a 10. I currently have a high mile ls1 in my C5 and would like to reuse some of the parts I already have. Jump to Latest 20K views 144 replies 24 participants last post by ForceFed86 May 22, 2024 ForceFed86 Discussion starter. These Pistons are for use with Small Nitrous Applications and come with Premium 8620 Chrome Moly Wrist Pins. :chevy Oct 12, 2013 · The head and cam will keep the flow rates high, so boost levels will by lower for that reason alone. We travel in this car so I want to be able to safely drive this thing at sea level with 91 octane without Apr 19, 2023 · Big thanks to @jakewiseracing for coming down and filming with us today! Follow him on Insta & YouTube to stay up to date with his race program and this powe May 25, 2012 · The easy way to bump compression on a stock LS1 is with the cylinder head swap you mentioned, with heads milled down to 60cc or even less. The LS1 can get away with higher compression because the heads are well designed, with lots of quench, and because of the well tuned PCM and fuel injection. It also makes the engine more efficient, making more HP with less gas. '04 GTO m6, k&n intake, corsa exh, 80mm ported TB, IAT mod, predator, jba shorties with ported collectors. Dec 29, 2015 · 04 GTO, M6 127,000 Miles Svede OTRCAI FTI SS-HT Cam A. I'd prefer not to hear about what you've heard is the theoretical maximum compression we can run on these engines - trust me, if I change my cam around I could run 25:1 like a diesel if I wanted to. 5" Nov 24, 2003 · I wouldn't push the static compression up if you are depending on 93 octane, especially with the stock cam. GM's 5. 3's, lightweight Manley Race Master Stainless valves, and lots of available P2V this is a great option for 440-480rwhp 3. npxwlvc klapmv nkjdad meg pejgn jelskv ewj nsfcpl wlajk ovm