Cam Only + 175 Shot

Reply Subscribe

Thread Tools

Search this Thread

Feb 8, 2013 | 04:45 PM

Boryke

Thread Starter

Staging Lane

Joined: Jan 2013

Posts: 61

Likes: 0

Cam Only + 175 Shot

Forged 347. Stock heads. FM14 Cam through a 6 speed and a moser 12 bolt with 4.11's. LS6 Intake.

How do the numbers look? ... I just can't figure out this dip in the graph around 5k. Is this knock retard?

Feb 8, 2013 | 05:27 PM

redtan

TECH Junkie

iTrader: (5)

Joined: May 2008

Posts: 3,764

Likes: 17

From: Belmont, MA

Yes that looks like knock. That AFR curve aint too pretty either...is this car tuned?

Feb 8, 2013 | 05:41 PM

Boryke

Thread Starter

Staging Lane

Joined: Jan 2013

Posts: 61

Likes: 0

Quote:

Originally Posted by redtan

Yes that looks like knock. That AFR curve aint too pretty either...is this car tuned?

Mail order and I did some tweaking with HP tuners on the dyno. How is the motor AFR run? Any suggestions on what I should change or be looking to change?

Feb 8, 2013 | 05:59 PM

LS1T56FTW

TECH Enthusiast

iTrader: (3)

Joined: Dec 2009

Posts: 574

Likes: 1

From: Buffalo, NY

Quote:

Originally Posted by Boryke

Mail order and I did some tweaking with HP tuners on the dyno. How is the motor AFR run? Any suggestions on what I should change or be looking to change?

I would have a professional tune this car before you do some serious damage to the motor.

Feb 8, 2013 | 06:11 PM

Boryke

Thread Starter

Staging Lane

Joined: Jan 2013

Posts: 61

Likes: 0

Quote:

Originally Posted by LS1T56FTW

I would have a professional tune this car before you do some serious damage to the motor.

Are you saying even the motor tune looks that far off? It look's pretty solid to me and the power numbers seem high for my setup. Correct me if I'm wrong.

Feb 8, 2013 | 09:05 PM

MeMz

On The Tree

Joined: Jul 2010

Posts: 130

Likes: 0

Well your getting knock. That right there is a sign that it needs work on tuning. Plus your gonna scorch your pistons if you run too lean

Feb 9, 2013 | 10:33 AM

redtan

TECH Junkie

iTrader: (5)

Joined: May 2008

Posts: 3,764

Likes: 17

From: Belmont, MA

Quote:

Mail order and I did some tweaking with HP tuners on the dyno. How is the motor AFR run? Any suggestions on what I should change or be looking to change?

The motor only run is perfectly safe, although the AFR is very rich and not conducive to making power. It's ok up to 4500rpm, but after that there's no need for the curve to dip into the mid 11s N/A.

Quote:

I would have a professional tune this car before you do some serious damage to the motor.

I agree with this while running on the juice, looks dangerous. Lots of knock and the AFR gets too lean from 4500 to 5200. That's peak torque and it's significantly more dangerous to run lean there. You're ok running it off the juice, but don't spray anymore until you get it tuned.

Trending Topics

Never knew about this Trans Am before

9

221
Starting issues

20

629
Epic SRK B/S thread of 2019

12.7k

561k
Compression check

9

308
4L80e loosing line pressure

30

877

Feb 9, 2013 | 07:03 PM

Boryke

Thread Starter

Staging Lane

Joined: Jan 2013

Posts: 61

Likes: 0

Quote:

Originally Posted by redtan

The motor only run is perfectly safe, although the AFR is very rich and not conducive to making power. It's ok up to 4500rpm, but after that there's no need for the curve to dip into the mid 11s N/A.

I agree with this while running on the juice, looks dangerous. Lots of knock and the AFR gets too lean from 4500 to 5200. That's peak torque and it's significantly more dangerous to run lean there. You're ok running it off the juice, but don't spray anymore until you get it tuned.

Thanks. Do you think theres 10-15 more RWHP in the tune on motor? I plan on doing a "max effort" cam only setup and installing a fast 92 / 92 TB soon as well. If I could get over the 430 mark cam only with my current setup that would be the hotness.

LS1 Tech Stories

The Best V8 Stories One Small Block at Time

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

Feb 9, 2013 | 09:50 PM

redtan

TECH Junkie

iTrader: (5)

Joined: May 2008

Posts: 3,764

Likes: 17

From: Belmont, MA

Quote:

Do you think theres 10-15 more RWHP in the tune on motor?

You stand to gain a good 10rwhp if not slightly more ~5000rpm to over 6200 where the fueling finally starts going where it should be. N/A should be 12.6-13.0, not mid 11s.

Feb 11, 2013 | 08:08 PM

#10

TeEnAgE pHeNoM

10 Second Club

iTrader: (6)

Joined: Jan 2006

Posts: 673

Likes: 0

From: Hattiesburg, MS

I would get it to 12.5 across the board on motor. Br7ef plug gapped at 0.028-.030. Pull 8-9 degrees of spark and adjust fuel jet to achieve 12.5 a/f on the gas as well.

Reply Subscribe