Ported LS2 throttle body, need a tune IMMEDIATELY ?
Thread Starter
Safety Car
Joined: Jan 2006
Posts: 4,598
Likes: 78
From: Miami FL
2020 C6 of the Year Finalist - Unmodified
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16,'17,'18-'19-'20-'21-'22
Ported LS2 throttle body, need a tune IMMEDIATELY ?
At least a couple of our respected Forum Supporting Vendors, Cory Harris and Jeremy Formato, make a good case for the ported throttle body on the LS2 to improve throttle response at small to medium throttle application.
My pending question is: Can I install one of these and run for a week or two before making it to my tuner to get an optimization tune?
Will it just throw a CEL but keep on running just fine?
Will it go into reduced power "limp home" mode?
Will nothing happen?
The SAFE approach is to keep the ported TB in the box until I arrive at the tuners, but timing issues and getting the core back to the vendor play a role here as well.
Current mods on the engine are trivial: B&B Rt 66 and X-pipe; 160F thermostat.
Thanx in advance for the excellent help I know is forthcoming
.
- Lee
My pending question is: Can I install one of these and run for a week or two before making it to my tuner to get an optimization tune?
Will it just throw a CEL but keep on running just fine?
Will it go into reduced power "limp home" mode?
Will nothing happen?
The SAFE approach is to keep the ported TB in the box until I arrive at the tuners, but timing issues and getting the core back to the vendor play a role here as well.
Current mods on the engine are trivial: B&B Rt 66 and X-pipe; 160F thermostat.
Thanx in advance for the excellent help I know is forthcoming
.- Lee
Safety Car
Joined: Dec 2004
Posts: 3,565
Likes: 5
From: stafford country, va. Avatar: Me on turn 3 @ Bristol (The World's Fastest Half-Mile)
, most likely not enough difference to throw a cel.while, you're at it, try rotating your maf 90 degress to align the diffusor and the throttle body. give it a shot, ain't gonna hurt nothing, got nothing to lose and well get to see if it makes a diff. i did mine so long ago i've forgotten how it ran basically stock.
Thread Starter
Safety Car
Joined: Jan 2006
Posts: 4,598
Likes: 78
From: Miami FL
2020 C6 of the Year Finalist - Unmodified
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16,'17,'18-'19-'20-'21-'22
Thanx, Gentlemen.
Now the harder question: Do I buy the ported throttle body from Jeremy or Cory ? ? ?
Now the harder question: Do I buy the ported throttle body from Jeremy or Cory ? ? ?
Drifting
Joined: Jul 2000
Posts: 1,861
Likes: 1
From: Bremerton WA
St. Jude Donor '09
All you need to do is disconnect your negative battery cable during the TB swap or pull your pcm fuse.
My ported TBs do not cause any codes.
I would hold off on the tune until you do another mod.
Ported TB price is $120 plus exchange. Let me know if I can help you!
My ported TBs do not cause any codes.
I would hold off on the tune until you do another mod.
Ported TB price is $120 plus exchange. Let me know if I can help you!
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Drifting
Joined: Apr 2005
Posts: 1,746
Likes: 0
From: Upper St. Clair PA
St. Jude Donor '06-'07-'09
All you need to do is disconnect your negative battery cable during the TB swap or pull your pcm fuse.
My ported TBs do not cause any codes.
I would hold off on the tune until you do another mod.
Ported TB price is $120 plus exchange. Let me know if I can help you!
My ported TBs do not cause any codes.
I would hold off on the tune until you do another mod.
Ported TB price is $120 plus exchange. Let me know if I can help you!
Put on both the ported TB and intake. Car runs better and no codes..... I will eventually do a tune, but I need to upgrade to a CAI and add headers first. Cory is THE man!!!!!
Drifting
Joined: Jul 2005
Posts: 1,533
Likes: 0
From: az
no need to disconnect the battery, it will erase all your LTFT, knock learn...ect. unless that is what you want. i have ported tb for over 6 months w no tune, no code & no issue. so, you don't have to rush to get a tune.
Race Director
Joined: Mar 2005
Posts: 11,549
Likes: 27
From: Southampton NJ
Drifting
Joined: Jul 2005
Posts: 1,533
Likes: 0
From: az
from an over all drivability, not much at all, to give you an example lets say, you ecm has learn 5* of KR under wot, then you go reset the battery / ecm, now you just gain back that 5* of timing back on your first wot, after a few wot you will be back at 5* KR again. ltft same thing, you lean it out since ecm has no clue you have mods like headers, intake...ect. after a while it will learn to rich the A/f, that is why you will see guys with mods running stock tune in the + ltft...you reset the ecm the ltft just went back to "0", it will need to relearn again.
Last edited by cbrf4i1; Jul 27, 2007 at 08:58 PM.
Burning Brakes
Joined: Apr 2006
Posts: 904
Likes: 2
It depends how agressive the port job might be. You might experience some idle issues (RPM's might hunt for a bit), especially when coming to a stop from a roll. Another issue might be "idle hang-up" during up-shifts.
Drifting
Joined: Jul 2005
Posts: 1,533
Likes: 0
From: az
Drifting
Joined: Jul 2005
Posts: 1,533
Likes: 0
From: az
