JLT Intake tune for GT350

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lightning
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Joined: Fri Mar 16, 2007 9:01 am

JLT Intake tune for GT350

Post by lightning »

Looking for guidance for GT350 JLT intake tune. Fuel trims are 29% and adding 30% to trinity stock tune modifier only changes it by 9%. Looking for MAF transfer or someone that knows the magic amount to add. Thanks
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06MonteSS
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Re: JLT Intake tune for GT350

Post by 06MonteSS »

Wow, you've got big air leak issues man.. You need to check the air intake, headers/exhaust manifolds, and exhaust system itself.. not good... shouldn't be that lean at all...

check the air intake, make sure it's all fully connected/together, and that all clamps/bolts from air filter to throttle body are all TIGHT so no air leaks anywhere...

check the headers/exhaust manifolds and re-tighten all bolts, make sure all TIGHT so no air leaks.. make sure no cracked manifolds, gaskets all good...

check headers/exhaust manifolds connections to exhaust and the whole exhaust system itself, make sure all bolts/clamps are TIGHT so no air leaks anywhere...

Make sure all breather hoses and vacuum lines are all connected where they should be... make sure no cracked/split hoses...

Check around the intake manifold, make sure no air leaks around the intake manifold...

then, after everything is fixed and tightened up, you need to check a new steady driving log.....
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mikel
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Re: JLT Intake tune for GT350

Post by mikel »

lightning wrote: Wed Jan 20, 2021 7:40 pm Looking for guidance for GT350 JLT intake tune. Fuel trims are 29% and adding 30% to trinity stock tune modifier only changes it by 9%. Looking for MAF transfer or someone that knows the magic amount to add. Thanks
Are you tuning this with CMR?
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lightning
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Re: JLT Intake tune for GT350

Post by lightning »

Yes, Long tube headers as well.
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mikel
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Re: JLT Intake tune for GT350

Post by mikel »

lightning wrote: Thu Jan 21, 2021 11:06 am Yes, Long tube headers as well.
Id start with JLT to see if they can provide a known curve for the CAI/MAF combo.
Mike Litsch
DiabloSport Brand Manager
Diablo Tech support by phone:
561-908-0040
M-F 8:00 AM to 5:00 PM EST

tech@diablosport.com
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