FAST Intake
Launching!
Joined: Aug 2002
Posts: 231
Likes: 0
From: Ontario, Canada
Any changes to capacities for bringing air into an engine or pushing exhaust out would dictate a change to the tune for a car in order to maximize power and reliability.
If you've got a wideband 02 on the car and your AFR is safe/in-check and you don't care about maximizing performance, you don't _have_ to tune it.
Usually when you improve intake airflow the car will go lean on your and the PCM will compensate by trying to add more fuel, usually not enough and you can experience a dangerous lean condition. Again, depends on the other parts on the car, air temps and other variables. Always best to check that and stay in the "know" with a wideband O2.
If you've got a wideband 02 on the car and your AFR is safe/in-check and you don't care about maximizing performance, you don't _have_ to tune it.
Usually when you improve intake airflow the car will go lean on your and the PCM will compensate by trying to add more fuel, usually not enough and you can experience a dangerous lean condition. Again, depends on the other parts on the car, air temps and other variables. Always best to check that and stay in the "know" with a wideband O2.
Thread Starter
11 Second Club
Joined: May 2009
Posts: 37
Likes: 0
From: Bowie, Maryland
Any changes to capacities for bringing air into an engine or pushing exhaust out would dictate a change to the tune for a car in order to maximize power and reliability.
If you've got a wideband 02 on the car and your AFR is safe/in-check and you don't care about maximizing performance, you don't _have_ to tune it.
Usually when you improve intake airflow the car will go lean on your and the PCM will compensate by trying to add more fuel, usually not enough and you can experience a dangerous lean condition. Again, depends on the other parts on the car, air temps and other variables. Always best to check that and stay in the "know" with a wideband O2.
If you've got a wideband 02 on the car and your AFR is safe/in-check and you don't care about maximizing performance, you don't _have_ to tune it.
Usually when you improve intake airflow the car will go lean on your and the PCM will compensate by trying to add more fuel, usually not enough and you can experience a dangerous lean condition. Again, depends on the other parts on the car, air temps and other variables. Always best to check that and stay in the "know" with a wideband O2.
Thanks for the info, purchased a wideband......upgrading my hp tuners to the MPVI pro version
If you are going from a 78mm TB to a 90mm TB too, your idle airflow setting will need considerable tuning. It is not as simple as dropping on a new intake/TB and running with the old tune. Your idle, street manners will be very different.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
