10-16-2021, 03:10 PM | #29 | |
Drives: 17' 1SS 1LE GBA-Black Join Date: Mar 2017
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10-18-2021, 09:50 AM | #30 |
I was under the impression a stock lt1's fuel system would be sufficient for most low 6-7psi boosted applications. On a properly tuned boosted lt1 wouldn't the car be able to pull enough timing to protect the motor from a excessive lean condition?
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Racecar: 17' SS ILE
Maggie tvs2300, Rotofab, 95mm TB, Fuelmax, Borla type-s NPP Daily: 2010 Toyota Tundra 5.7 Project: 1989 Toyota Supra Turbo Ride: 2006 Kawasaki ZX14r |
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10-18-2021, 04:21 PM | #31 |
Drives: 2016 Camaro SS Join Date: Jul 2020
Location: Dallas, TX
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It would be a slug with no timing and lots of boost. some cars in AZ with 91 octane will have 10-11psi boost and like 9 degrees of timing.
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10-18-2021, 05:32 PM | #32 | |
Drives: 2017 Camaro SS 50th Anniversary Join Date: Apr 2021
Location: Missouri
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Bottom line is its at its limit. Doesnt take much to push it over the egde. |
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10-18-2021, 06:18 PM | #33 |
Drives: 17' 1SS 1LE GBA-Black Join Date: Mar 2017
Location: TLV
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And when adding a complete LT4 fueling system and running 93? What can the best R-WHP results be (safely, without leaning out and without detonating) capping it at 8-8.5 PSI boost?
What lowest Injectors PW can be achieved at the best possible scenario with such setup? |
10-18-2021, 07:41 PM | #34 |
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
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P1x with full LT4 system shows 4.5ms ipw's .80 Lambda @ 9.5psi peak boost on 93 octane. Plenty of fuel but timing limited from lack of octane...10-12 degrees timing max. Dyno numbers are meaningless without a baseline but lets say 600whp.
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2016 NFG 1SS A8
Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA |
10-19-2021, 06:10 PM | #35 | |
Drives: 17' 1SS 1LE GBA-Black Join Date: Mar 2017
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Now, if it would not be a Centri (I.E. P1X), but rather something like the stock Eaton LT4 1.7L Head Unit? Or similar PD unit for that matter... Again, talking about pure 93 Pump petroleum (No E10 = Zero Ethanol), 8.5 PSI peak boost on the same LT4 fueling setup? Would Ign. timing have to be retarded even lower than 11-12 Deg. ? |
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11-09-2021, 01:59 PM | #36 |
Dyno Show Queen LOL
Drives: 16 SS & 17 ZL1 Both Yellow Join Date: Jan 2014
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Talking ring gap...
If you order LT4 pistons and they do come with rings are they gapped correctly say 20 thou all ready for boost top and lower? wife is wanting to run more boost and you may recall that my buddy had not 1 but 2 motors blow from MTI.. He gave me his lt4 crank, 4 rods, and 4 pistons and cam. I found 4 rods and pistons on ebay for 250 shipped. I'll only need 2 right side pistons. should have 220 dollars in pistons, 250 in used parts and machine work labor. should be good motor to about 800 wheel.
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Kong Ported 2650, Crawford Racing Port Injection, Weapon X 112mm Adapter, NW112mm TB, Livernois Ported LT4 Heads, Lingenfelter GT32 stealth cam, Haltech Elite, and Carbon by Trufiber |
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