Anyone planning on Longtubes with NO tune? what could happen? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Mustang Killa · 02-03-2010, 12:05 AM

If you did run some longtubes and no tune what are the possibilites or bad things that could happen?

HaZe_X · 02-03-2010, 12:08 AM

youll set the cat efficiency code.

I'm at a toss up, I have the ADM intake sitting here, plan on ordering the ARH+magnaflow package..I know its gonna lead to me tuning it, but I dont want to put up with crap if something goes wrong.

Jeanius · 02-03-2010, 01:04 AM

Go and look at Ted Jannetty's test which states the LT's do absolutely nothing to the AFR.

sav1 · 02-03-2010, 01:44 AM

I've had my Lt's on for about 1100 miles (with NO tune), still no light. and have had 2 dyno pulls and my AFR's are almost perfect. I do plan on a full tune soon, should see another 15 - 20 RWHP. Currently at 418 with Lt's, xpipe, 3'', CAI.

Mustang Killa · 02-03-2010, 01:46 AM

Quote:

Originally Posted by sav1

I've had my Lt's on for about 1100 miles (with NO tune), still no light. and have had 2 dyno pulls and my AFR's are almost perfect. I do plan on a full tune soon, should see another 15 - 20 RWHP. Currently at 418 with Lt's, xpipe, 3'', CAI.

which CAI do u have jw?

axis · 02-03-2010, 03:17 AM

Quote:

Originally Posted by coolman

I guess it depends on the headers. I tried mine in the shop after the guys put them on and it threw a code right away. They did a tune for another $500 bucks and gained 55hp at the rear wheels with codes gone. I'm talking 17/8" custom stainless headers with high flow cats.

The ones in Teds test were 1 3/4, 1 7/8, and 2in. All with high flow cats. From his test, NONE of them NEEDED a tune to make very good gains. I didn't notice if they threw a code from the cats being further back in the system but the AFR and FT's on all sets were pretty much dead on.

sav1 · 02-03-2010, 04:06 AM

Quote:

Originally Posted by Mustang Killa

which CAI do u have jw?

ROto Fab

Camar0wn3d · 02-03-2010, 08:22 AM

Quote:

Originally Posted by coolman

You need a tune with long tubes unless you want to lean the motor out and burn a piston or a valve.

I don't have a performance tune and my Fuel Trims are dead on. (I DO have a mini-tune to disable just the P0420 and P0430 codes and DFCO).

Jason 98 TA · 02-03-2010, 09:53 AM

Don't forget the mail order tune option. We tune pcm's custom for the customers mods mail order.

With installing long tubes & high flow cats your going to see the SES light without some tuning changes.

The tune, TSP long tube headers, x pipe, axle back & cold air would cost just over $2000!!!

[/img]http://www.precisionracecomponents.com/2010exhaust.jpg[/img]

axis · 02-03-2010, 09:56 AM

Quote:

Originally Posted by Jason 98 TA

Don't forget the mail order tune option. We tune pcm's custom for the customers mods mail order.

With installing long tubes & high flow cats your going to see the SES light without some tuning changes.

The tune, TSP long tube headers, x pipe, axle back & cold air would cost just over $2000!!!

[/img]http://www.precisionracecomponents.com/2010exhaust.jpg[/img]

That's your exhaust and accessories. Other setups would cost well over $3k.

JANNETTYRACING · 02-03-2010, 11:10 AM

Quote:

Originally Posted by axis

That's your exhaust and accessories. Other setups would cost well over $3k.

Not necessarily see this thread
http://www.camaro5.com/forums/showthread.php?t=62567

JANNETTYRACING · 02-03-2010, 11:13 AM

Quote:

Originally Posted by coolman

I know I read that test also ,and it really bugs me because I don't know what happen to cause this on my car.

If it popped a code imediately then something was left unplugged, if it popped a code after driving a few miles then it was just Cat efficiency codes.

Headers do not set lean or rich codes regarless of manufacturer.

Ted.

walhan_qtr · 02-04-2010, 12:07 AM

ive been running kooks 1 7/8 headers with catless pipes, CAI, SLP UD pulley for almost a month with the stock tune.... no problems, no codes ( until now, im sure it will come on soon)

BigZmuscle · 02-04-2010, 02:55 AM

Quote:

Originally Posted by coolman

You need a tune with long tubes unless you want to lean the motor out and burn a piston or a valve.

would the diablosport trinity unit work for tuning it

02-03-2010, 12:05 AM	#1
Mustang Killa Drives: Black 2SS Join Date: Nov 2009 Location: az Posts: 853	Anyone planning on Longtubes with NO tune? what could happen? If you did run some longtubes and no tune what are the possibilites or bad things that could happen?

02-03-2010, 01:04 AM	#3
Jeanius Drives: Blk/Blk 2018 Sierra SLT Join Date: Dec 2006 Location: Golden State Posts: 2,925	Go and look at Ted Jannetty's test which states the LT's do absolutely nothing to the AFR. __________________ SOLD: 2SS LS3 M6 - MGW - Dynatech LT's HF Cats - Magnaflow Street CB - ADM Race CAI - Pedders Xa Coilovers - Pfadt Sways TRADED: 2016 2SS M6

02-03-2010, 01:44 AM	#4
sav1 Drives: 2009 Corvette Z06 Join Date: Jun 2009 Location: San Diego Posts: 556	I've had my Lt's on for about 1100 miles (with NO tune), still no light. and have had 2 dyno pulls and my AFR's are almost perfect. I do plan on a full tune soon, should see another 15 - 20 RWHP. Currently at 418 with Lt's, xpipe, 3'', CAI. __________________ "What Do I Feel When I Kill A Terrorist? A Little Recoil"

02-04-2010, 12:07 AM	#13
walhan_qtr ..[ Z06-QTR ].. Drives: '10 Camaro 2SS RS M6/ 07 C6 Z06 Join Date: Aug 2009 Location: Colorado Posts: 763	ive been running kooks 1 7/8 headers with catless pipes, CAI, SLP UD pulley for almost a month with the stock tune.... no problems, no codes ( until now, im sure it will come on soon) __________________ - 07 Silver C6 Z06, Darton sleeved LS7, 441ci, H/C/I, Duel Stage Nitrous, RPS BC3, TR6060, E85. (615whp/582wtq N/A) - 09 Blk Z06, 427ci LSX, F2 Procharger, Brodix, Holley, ZR1 TR6060, ... (1204whp/1045wtq @ 24psi) - 06 Blk C6, Darton Sleeved LS2, 427ci, H/C/I, F1X, RPM Trans/Diff, RPS BC3. (New #s soon) - 10 Black Camaro LS3, 2SS/RS, H/C/I, bolt-ons, Spec. (470whp/450wtq). - 07 Black Corvette C6(SOLD). - 98 White/Red Corvette C5(SOLD).

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02-03-2010, 12:08 AM	#2
HaZe_X Drives: Trailblazer SS & Camaro SS Join Date: Nov 2009 Location: North Jersey Posts: 758	youll set the cat efficiency code. I'm at a toss up, I have the ADM intake sitting here, plan on ordering the ARH+magnaflow package..I know its gonna lead to me tuning it, but I dont want to put up with crap if something goes wrong.

02-03-2010, 09:53 AM	#9
Jason 98 TA Drives: Camaro Join Date: Apr 2009 Location: Texas Posts: 1,670	Don't forget the mail order tune option. We tune pcm's custom for the customers mods mail order. With installing long tubes & high flow cats your going to see the SES light without some tuning changes. The tune, TSP long tube headers, x pipe, axle back & cold air would cost just over $2000!!! [/img]http://www.precisionracecomponents.com/2010exhaust.jpg[/img]