Installing Stroker - Can it be broken in w/ the old tune?

Reply Subscribe

Thread Tools

Search this Thread

Apr 15, 2009 | 08:43 PM

Bill00Formula

Thread Starter

TECH Fanatic

iTrader: (4)

Joined: Nov 2001

Posts: 1,066

Likes: 11

From: West Palm Beach, Fl

Installing Stroker - Can it be broken in w/ the old tune?

I'm replacing my 346 w/ a LS7 based 427. My current motor makes about 430-440 rwhp and I'm running 42lb injectors. As part of the swap I will be upgrading my stock fuel pump.

Is it ok to run the current tune if I keep it under 3,000 rpm? Then after about 500 miles I would get a dyno tune.

Would it be better to get a base/safe tune from the tuner?

I was thinking of using Mike Norris.

Thanks

Apr 15, 2009 | 11:54 PM

sroach20

TECH Addict

iTrader: (31)

Joined: Dec 2002

Posts: 2,318

Likes: 1

From: houston, Texas

as long as it was tuned for the 42s you may be okay, but it is best to break the engine in on the dyno.

Apr 16, 2009 | 05:31 AM

Nimitz87

12 Second Club

iTrader: (17)

Joined: Dec 2004

Posts: 1,449

Likes: 0

From: Cooper City, FL

Quote:

Originally Posted by Bill00Formula

Mike Norris is good from what I have heard, I recently got my car tuned by Jeremy Formato, my buddy asked him this question and he said it would be fine to drive the car keeping the rpm's low over to his place to do the tuning, and then go to the dyno.

Chad

Apr 16, 2009 | 06:34 AM

crf538

Launching!

iTrader: (3)

Joined: Jun 2008

Posts: 234

Likes: 0

From: richmond, va

do you have a wideband? if not get one and you can do anything you want...the only thing thats going to hurt it is getting lean under power.

Apr 16, 2009 | 07:16 AM

Gh0st

Jedi Master

iTrader: (3)

Joined: Apr 2007

Posts: 668

Likes: 0

From: MN

Quote:

Originally Posted by crf538

do you have a wideband? if not get one and you can do anything you want...the only thing thats going to hurt it is getting lean under power.

Well....over-fueling is going to cause problems too to his pretty new engine.

Apr 16, 2009 | 10:29 AM

Bill00Formula

Thread Starter

TECH Fanatic

iTrader: (4)

Joined: Nov 2001

Posts: 1,066

Likes: 11

From: West Palm Beach, Fl

I tried to say the 42's are in my current motor and are already tuned.

Apr 17, 2009 | 07:04 PM

AutomagicLS1

TECH Fanatic

iTrader: (18)

Joined: Jun 2006

Posts: 1,429

Likes: 1

From: Spring Hill,Kansas

If it will even run

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Verdad Gallardo

6 Common C5 Corvette Failures and What's Involved In Repairing Them

Pouria Savadkouei

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Verdad Gallardo

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Pouria Savadkouei

Top 10 Most Powerful Chevy Trucks Ever Made!

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Verdad Gallardo

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Verdad Gallardo

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Verdad Gallardo

10 Camaros You Should Never Buy

10 LS Engine Myths That Refuse to Die

Verdad Gallardo

Apr 17, 2009 | 08:25 PM

AutomagicLS1

TECH Fanatic

iTrader: (18)

Joined: Jun 2006

Posts: 1,429

Likes: 1

From: Spring Hill,Kansas

Quote:

Originally Posted by edcmat-l1

Exactly. Regardless of being tuned for the injectors, the computer will think it's a 346. You've added another 80 cid, so it's going to be pretty lean, to say the least.

+ why even risk it? Im pretty sure there is a pretty penny wrapped up in that 427. I learned my lesson on driving a car untuned,lean and it costed me a motor

Apr 17, 2009 | 08:50 PM

#10

Bill00Formula

Thread Starter

TECH Fanatic

iTrader: (4)

Joined: Nov 2001

Posts: 1,066

Likes: 11

From: West Palm Beach, Fl

So I'd need to install a base tune and then make sure I have a wideband? I thought at low rpm it wouldn't need significantly more fuel than my current 346. Guess I was wrong? Install is in my garage so my options are limited. No I don't want to hurt the motor.

I e-mailed Mike and haven't received a reponse. Guess he doesn't do e-mails.

Thanks for the replies.