OD cog without Tune - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Yezzir600 · 06-13-2017, 12:59 PM

While my car is in the shop for some upgrades I plan on switching my 1:1 rear cog on the TVS2300 to a OD cog and also swapping my hi flow cats (kook Lt's) to kooks catless.

My tuner wants me to drive about 500+ miles break in period before getting on the dyno and tuning... telling me it is fine on current conservative tune as long as I'm not punching it and getting into boost. (Ls3 with tvs2300, stage 1 PD cam, FIC850cc, ZL1pump, FPCM, CAI, 550rwhp at 6psi)

Question: Am I safe driving with the added pulley and no tune update? until the break in miles.
Driving to work stop n go? longer freeway trips?

Od's add about 3 psi... boost kicks in around ~3k. Catless shouldn't make much of any diff over the kooks hiflows.

Pollock · 06-13-2017, 07:42 PM

Question... What needs to be broken in?

I would tune it right away. Not a chance in the world I could not put my foot into anything I drive. Why chance it.

PostNup · 06-13-2017, 08:09 PM

You need a different tuner

BiggFoot · 06-13-2017, 09:32 PM

Quote:

Originally Posted by Yezzir600

While my car is in the shop for some upgrades I plan on switching my 1:1 rear cog on the TVS2300 to a OD cog and also swapping my hi flow cats (kook Lt's) to kooks catless.

My tuner wants me to drive about 500+ miles break in period before getting on the dyno and tuning... telling me it is fine on current conservative tune as long as I'm not punching it and getting into boost. (Ls3 with tvs2300, stage 1 PD cam, FIC850cc, ZL1pump, FPCM, CAI, 550rwhp at 6psi)

Question: Am I safe driving with the added pulley and no tune update? until the break in miles.
Driving to work stop n go? longer freeway trips?

Od's add about 3 psi... boost kicks in around ~3k. Catless shouldn't make much of any diff over the kooks hiflows.

I am agreeing with the first two gents that commented. LOL, 6 psi and now going to 9 psi? There is nothing to break in. On a good day I can fart 9 psi. Tune that sucker and go haul azzz.

Yezzir600 · 06-14-2017, 09:57 AM

The break in period is for the new forged pistons, ring , rods, bearings, etc.

I was just planning on swapping my rear cog pulleys at the same time but wondering if it would be safe to drive (steady under 3k shifts) with the added boost in the meantime.

If the answer is definitely no than I guess I just need to go through his break in period before swapping pulleys.
Its just that the rear cogs on the maggies are a PITA.

BiggFoot · 06-14-2017, 10:05 AM

Quote:

Originally Posted by Yezzir600

The break in period is for the new forged pistons, ring , rods, bearings, etc.

I was just planning on swapping my rear cog pulleys at the same time but wondering if it would be safe to drive (steady under 3k shifts) with the added boost in the meantime.

If the answer is definitely no than I guess I just need to go through his break in period before swapping pulleys.
Its just that the rear cogs on the maggies are a PITA.

Ahh, well apologies to your tuner, lol. Your paying the speed shop for the install and their expertise so ask them about when is the right time to install the cog. Just sayin.

Yezzir600 · 06-14-2017, 01:36 PM

Tuner answer:
"Removing cats and running a -3.2 piston should make it more like a 2 psi gain but with slightly lower compression so it should be fine for break in. You should not be running it WOT during break in anyway."

Stefano · 06-14-2017, 02:39 PM

Leave the rear drive alone and switch it right before the new tune. It doesn't take long to change it over?

supergt99 · 06-14-2017, 03:42 PM

tuner is right, drive easy and youll be fine.

UNRIVALED SS · 06-15-2017, 09:25 PM

It's fine . Drive it . I would put a 4K rev limiter on it.

Yezzir600 · 06-16-2017, 11:55 AM

10-4. Thanks guys.

Light foot, steady drives under 3k

Cavalo Preto · 06-16-2017, 03:34 PM

Did mine about a week ago not tuned yet right now hitting 9 psi with other mods going back next week to tune also got the clutch done need to to put some kms on the clutch before tune

06-13-2017, 12:59 PM	#1
Yezzir600 Drives: CGM 2SS/RS Join Date: Jul 2012 Location: Bay Area Posts: 224	OD cog without Tune While my car is in the shop for some upgrades I plan on switching my 1:1 rear cog on the TVS2300 to a OD cog and also swapping my hi flow cats (kook Lt's) to kooks catless. My tuner wants me to drive about 500+ miles break in period before getting on the dyno and tuning... telling me it is fine on current conservative tune as long as I'm not punching it and getting into boost. (Ls3 with tvs2300, stage 1 PD cam, FIC850cc, ZL1pump, FPCM, CAI, 550rwhp at 6psi) Question: Am I safe driving with the added pulley and no tune update? until the break in miles. Driving to work stop n go? longer freeway trips? Od's add about 3 psi... boost kicks in around ~3k. Catless shouldn't make much of any diff over the kooks hiflows.

06-13-2017, 08:09 PM	#3
PostNup CAR-DASHIAN Drives: 2015 Ashen Gray Metallic 2SS/RS L99 Join Date: Nov 2015 Location: Gilbert, AZ Posts: 540	You need a different tuner __________________ PERFORMANCE: ColdAirInductions CAI, ADM Race Scoop, Cordes Performance Racing Ported TB/IM/Custom VVT Cam, WFO Milled Heads, Stainless Power 1 7/8" LT/3" HFCs, JBA 3" Comp. Cat-Back, Taylor 10.4mm Plug Wires, Tim King Performance Stage 3 6L80, Circle D Billet 3600 Stall, Nic D ECM/TCM Tune, - 458rwhp/413rwtq (prior to PIM), Forgestar F14 (F)18" / (R)17" Rims. SUSPENSION: Z/28 Rear UCA Bushings, Carlyle Racing LCA/TA, BMR Adj. Toe Rods/Xtreme Anti-Roll Bar, Justice Pete Castor Locks/Radius Rod Inserts, Pegasus Billet Rear Cradle Bushings, Mickey Thompson Street SS II 305/45/17 tires.

06-13-2017, 07:42 PM	#2
Pollock LT4 M6 Drives: 2018 ZL1 1LE Join Date: Nov 2010 Location: Bloomington, IN Posts: 1,249	Question... What needs to be broken in? I would tune it right away. Not a chance in the world I could not put my foot into anything I drive. Why chance it.

06-14-2017, 09:57 AM	#5
Yezzir600 Drives: CGM 2SS/RS Join Date: Jul 2012 Location: Bay Area Posts: 224	The break in period is for the new forged pistons, ring , rods, bearings, etc. I was just planning on swapping my rear cog pulleys at the same time but wondering if it would be safe to drive (steady under 3k shifts) with the added boost in the meantime. If the answer is definitely no than I guess I just need to go through his break in period before swapping pulleys. Its just that the rear cogs on the maggies are a PITA.

06-14-2017, 01:36 PM	#7
Yezzir600 Drives: CGM 2SS/RS Join Date: Jul 2012 Location: Bay Area Posts: 224	Tuner answer: "Removing cats and running a -3.2 piston should make it more like a 2 psi gain but with slightly lower compression so it should be fine for break in. You should not be running it WOT during break in anyway."

06-14-2017, 02:39 PM	#8
Stefano Drives: 6th Gen NicKey Camaro & others. Join Date: Nov 2015 Location: Loves Park, Illinois Posts: 492	Leave the rear drive alone and switch it right before the new tune. It doesn't take long to change it over?

06-14-2017, 03:42 PM	#9
supergt99 Drives: 2013 Camaro SS 1LE Join Date: Oct 2014 Location: earth Posts: 288	tuner is right, drive easy and youll be fine.

06-15-2017, 09:25 PM	#10
UNRIVALED SS Drives: 2010 Camaro SS Join Date: Aug 2010 Location: El Paso Posts: 704 View My Garage	It's fine . Drive it . I would put a 4K rev limiter on it.

06-16-2017, 11:55 AM	#11
Yezzir600 Drives: CGM 2SS/RS Join Date: Jul 2012 Location: Bay Area Posts: 224	10-4. Thanks guys. Light foot, steady drives under 3k

06-16-2017, 03:34 PM	#12
Cavalo Preto Drives: 2011 ss2 convert Join Date: Nov 2011 Location: Toronto Posts: 50 View My Garage	Did mine about a week ago not tuned yet right now hitting 9 psi with other mods going back next week to tune also got the clutch done need to to put some kms on the clutch before tune