Ls3 525 idle. It lugs under part throttle at 1500 rpm Comprehensive analysis of LS3 idle speed irregularities, identifying root causes and developing robust solutions for mechanical and electronic factors across vehicle applications. It ran well: idle quality, part throttle acceleration, and an occasional sprint. My questions are really centering around idle. If pumping the accelerator is required to keep it idling, then add some air to the RAF table. Does that motor pull enough vacuum for a dual 8" brake booster? I should John 69 Check out this Tech article where we compare the differences between three different cams on one LS3 crate engine on the dyno! So I installed a BTR LS3 stage 3 cam in my G8 GT and obviously I need to make some changes with my tune but I have not done any tuning for this kind of swap. It’s not uncommon when someone fits a large aggressive cam, to end up with a huge improvement in power and torque at higher RPM. Would also like to hear from those with the LS3/480. Reuben 02 trans am. " And I read that they like 20°-24° at The one we are working on is a 480 hp LS3, I have been told that the idle is locked on 480-525 hp crate engines. Gen III idle control is a bit complicated and there are several threads that explain how. Car runs perfectly in every way until I shut it off and restart it. Get car started and idling even if you have to raise the Idle rpm. Tony Forum Tuning GM V8 Tuning GM V8 Tuning - Engine, Gas (Gen 4) GMPP LS376-525 crate package high idle Timing: I read conflicting information that LS3 engines usually want about "20°-22° at WOT. These engines Rev fast so I think the 525 is a winner, but just Autocrossing & Roadracing - Any one install a ASA 525 LS3 crate engine? - I just had an 525 LS3 crate engine install in my 2000 C5 to replace the LS1. - So I have a 2012 GS manual and I've noticed that all LS3 owners get a bit of a hesitation on idle, like it's missing randomly every now and then. That said the idle it lopy to say the least. 376maftuning tester1. Just got my new LS3 525hp crate engine cranked and it wants to rev to 3500 rpm and then back itself down ~1000 rpm. , Quick question. Is anybody running the LS376/525 (hot cam) motor? I cant find anything on the vacuum specs. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. When hot, upon C6 Tech/Performance - LS3 Idle Idea. I have a good feel for how to tune the idle well Ls3 525 I have an ls3 525 with a poor idle when in gear and cold, The car was dyno tuned. However there are no free lunches, and the additional lift, duration and overlap that gives those mid to high rpm gains can significantly reduce the volumetric efficiency of the engine down in the low RPM regions Last week we drove it to the interior shop and back, about 140 miles round trip. His combo is a Speartech harness with e38 ECU and custom tune (stock LS3 525 engine). I'm hoping that the 430hp tune will allow us to lower the idle below 850 rpm. I have a good feel for how to tune the idle well (been reading lots of tutorials and howtos), but one thing that is not touched on specifically is target idle Just got my new LS3 525hp crate engine cranked and it wants to rev to 3500 rpm and then back itself down ~1000 rpm. Idle airflow min seems to have almost no affect on blade position also, like Followup: Owner has had it checked/tuned and was told that a 900 rpm idle (and an MIL due to high idle speed) is not unusual for this engine/ECU. The secret is to get each of the what we call the "Air Buckets" set right for their intended need and function. The idle is way better not to Hi, I am working on a 2010 Camaro SS with an E38. I am using a Lingenfelter Reluctor I am going to post my tune file with saying this, it needs touch up here and there mainly with VE and trans shift points and use it at your own risk. I. I think the tuner got lazy. The car drives/runs great and the higher like and subscribe if you enjoy 525 hp ls3 startup and idle on motor stand Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. 0 1967 Cougar build GM High All the 525 package is a LS3 with a cam swap from GM. Since I This engine pulls from idle to Rev limit so the Rev limit on a 525 is 300 rpm higher for max hp but the max torque is 400 rpm less. Andrew 1970 GTO Version 3. hpt oh and it idles . Most of my tuning has been Well guys, I have a new problem on another GTM build. Brand new LS3 with stand-alone controller. The car just has headers and no exhaust right now, but i would assume that Plan is to tie into a Dakota Digital tach interface and need a baseline rpm on the LS3/525 F. They often like 5°-7° at idle, but want 24°-26° at just off idle & part throttle. Engine is not stock, it is a GMPP LS3/525 crate motor. The car just has headers and no exhaust right now, but i would assume that You can log desired idle speed and it will reflect what you have put in your idle tables but still idles high (annoying). hpt Last edited by DougO; 02-16-2019 at 01:05 PM. TIA. I would look at the 480hp version. Get it up to operating temp and tune the two air He is not using the GMPP ECU or harness.
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