Cammed cars what are your RAF

Reply Subscribe

Thread Tools

Search this Thread

Oct 15, 2005 | 08:26 AM

HumpinSS

Thread Starter

FormerVendor

iTrader: (1)

Joined: Feb 2002

Posts: 3,059

Likes: 0

From: Waldorf, MD

Cammed cars what are your RAF

values at 176*

TIA

Oct 15, 2005 | 08:40 AM

Josh

TECH Fanatic

iTrader: (9)

Joined: Feb 2002

Posts: 1,061

Likes: 0

From: West Lafayette, IN

Mine is currently set at 7.30 at 176*.

Josh

Oct 15, 2005 | 08:45 AM

HumpinSS

Thread Starter

FormerVendor

iTrader: (1)

Joined: Feb 2002

Posts: 3,059

Likes: 0

From: Waldorf, MD

stock TB?

Oct 15, 2005 | 08:47 AM

Black02SS

TECH Junkie

iTrader: (36)

Joined: Oct 2002

Posts: 3,291

Likes: 1

From: Kokomo, IN

7.14

Oct 15, 2005 | 10:40 AM

Checkmate

12 Second Club

iTrader: (2)

Joined: Feb 2004

Posts: 1,011

Likes: 0

From: Front Royal, VA

9.29g/sec @ 177F

Oct 15, 2005 | 12:21 PM

Patrick G

LS1 Tech Administrator

iTrader: (14)

Joined: Nov 2001

Posts: 8,246

Likes: 34

From: Victoria, TX

8.90 g/sec at 176f (80c).

__________________

2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.

Oct 15, 2005 | 02:15 PM

SideStep

TECH Fanatic

Joined: Mar 2003

Posts: 1,946

Likes: 1

7.63 at 176*

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Pouria Savadkouei

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Verdad Gallardo

7 Most Reliable High-Performance Engines GM Has Ever Built

Verdad Gallardo

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

Oct 15, 2005 | 03:56 PM

HumpinSS

Thread Starter

FormerVendor

iTrader: (1)

Joined: Feb 2002

Posts: 3,059

Likes: 0

From: Waldorf, MD

Quote:

Originally Posted by P Mack

6.3 g/s @ 750 rpm.

This thread is worthless without idle speed.

Yeah I didnt think about that. And TB size

Oct 15, 2005 | 04:07 PM

#10

Phil99vette

7 Second Club

iTrader: (11)

Joined: Jul 2002

Posts: 8,758

Likes: 9

From: Port Tobacco, MD

I would think that you need to add LTIT and STIT. Say your RAF is setup @ 7.5 and between your STIT and LTIT it adds another lb of air or so...
Phil

Oct 15, 2005 | 04:09 PM

#11

P Mack

TECH Addict

iTrader: (6)

Joined: Jan 2003

Posts: 2,382

Likes: 2

From: Phoenix

Yeah, that's true. Maybe a better question would be what is dynamic airflow at 176?

Oct 15, 2005 | 09:43 PM

#12

Patrick G

LS1 Tech Administrator

iTrader: (14)

Joined: Nov 2001

Posts: 8,246

Likes: 34

From: Victoria, TX

My dynamic airflow at 900 rpm idle with NW 90mm TB is 8.90 g/sec. Trims are 0. IAC counts are around 30 with AC off when fully warm (176f).

__________________

Oct 15, 2005 | 11:25 PM

#13

JNorris

Moderator

iTrader: (4)

Joined: Nov 2001

Posts: 2,074

Likes: 0

From: Montgomery, AL

Quote:

Originally Posted by Patrick G

My dynamic airflow at 900 rpm idle with NW 90mm TB is 8.90 g/sec. Trims are 0. IAC counts are around 30 with AC off when fully warm (176f).

Which PID is dynamic airflow in EFILive?

Thanks

Oct 16, 2005 | 03:41 AM

#14

HumpinSS

Thread Starter

FormerVendor

iTrader: (1)

Joined: Feb 2002

Posts: 3,059

Likes: 0

From: Waldorf, MD

Calcualted Airflow Rate GM.DYNAIR under AIR in the drop down list

Oct 16, 2005 | 07:07 PM

#15

Bill Bowling

TECH Addict

iTrader: (6)

Joined: Apr 2003

Posts: 2,597

Likes: 4

From: Lawrenceville, GA

I am at 9.501 @80 C with a hand ported TB @850RPM.

Bill

Oct 16, 2005 | 07:14 PM

#16

JNorris

Moderator

iTrader: (4)

Joined: Nov 2001

Posts: 2,074

Likes: 0

From: Montgomery, AL

My dynamic airflow at 875 rpm idle with a stock ported TB is 8.75 g/sec in park when fully warm (180f).

I have 10 g/sec in the RAF table at 80c. Any value much below that and the car is hard to start.

John

Last edited by JNorris; Oct 16, 2005 at 07:23 PM.

Oct 16, 2005 | 09:57 PM

#17

Ragtop 99

TECH Senior Member

iTrader: (7)

Joined: Nov 2001

Posts: 9,491

Likes: 1

From: Bethesda, MD

Ok, I understand why idle speed and A4 v. M6 (delta spinning mass) would matter, but why should the TB effect the amount of air needed? If the tB is relevant, wouldn't you need to know how much the blade is opened at idle etc?

Also is valve overlap (i.e cam size) a variable to be accounted for?

Oct 16, 2005 | 10:12 PM

#18

P Mack

TECH Addict

iTrader: (6)

Joined: Jan 2003

Posts: 2,382

Likes: 2

From: Phoenix

I'm with him ^^^. I don't think tb size is relevant but cam size is relevant.

Oct 16, 2005 | 11:00 PM

#19

Patrick G

LS1 Tech Administrator

iTrader: (14)

Joined: Nov 2001

Posts: 8,246

Likes: 34

From: Victoria, TX

If we're looking at cam sizes, we really need to look at duration and overlap at .006".

I'll go first: Thunder TRak cam 285/285 @ .006". 61 degrees of overlap at .006".

__________________