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Thread: Untuned
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02-25-2018, 09:14 PM #1
Untuned
Can I drive my cammed lt1 with no tune to the shop
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02-25-2018, 10:10 PM #2LTx Guru
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Did you significantly increase injector size above stock? How far is the drive to the shop? Big injectors can wash down the cylinder walls and dilute the oil. The PCM can pull out 15% excess fuel using the long term fuel corrections. After that, it’s hit or miss with the short terms.
SOLD - GONE TO A (VERY) GOOD HOME ! - 94 Formula A3+1: 381ci forged stroker - Callies Stealth, Oliver 5.85 billet rods, BME nitrous pistons / CNC LT4 heads / CC solid roller / TH400+GearVendors OD / 4.11 Strange 12-bolt / 300-shot N2O / Spohn Suspension / roll bar / MoTeC M48 Pro engine management system /a few other odds 'n ends.
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02-26-2018, 06:59 AM #3Lurker
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drove my CC503 in my last car for a while with no tune, but it was on stock fuel injectors
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02-26-2018, 07:07 AM #4
I also have stock injections
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02-26-2018, 02:26 PM #5
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02-26-2018, 05:01 PM #6LTx Guru
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Shouldn’t be a problem.... but the bigger the cam is, the harder it could be to drive. You could face stalling, surge, fueling gets sloppy at low RPM with high overlap, etc.. Moderate cam shouldn't be a problem.
SOLD - GONE TO A (VERY) GOOD HOME ! - 94 Formula A3+1: 381ci forged stroker - Callies Stealth, Oliver 5.85 billet rods, BME nitrous pistons / CNC LT4 heads / CC solid roller / TH400+GearVendors OD / 4.11 Strange 12-bolt / 300-shot N2O / Spohn Suspension / roll bar / MoTeC M48 Pro engine management system /a few other odds 'n ends.
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02-27-2018, 09:12 AM #7
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