F1-C is here...

Reply Subscribe

Thread Tools

Search this Thread

Jan 16, 2007 | 02:23 PM

#61

GrannySShifting

TECH Junkie

iTrader: (10)

Joined: Nov 2001

Posts: 3,944

Likes: 21

From: Glen Burnie, Md

We found about 10-13% more duty cycle to go. not enough

What box and problems did you have KP?

Jan 16, 2007 | 02:26 PM

#62

GrannySShifting

TECH Junkie

iTrader: (10)

Joined: Nov 2001

Posts: 3,944

Likes: 21

From: Glen Burnie, Md

Quote:

Originally Posted by BLASTER

So I guess htis is the limit for the 60s in terms of power...

Sorry for all the questions. Trying to learn and tailor my expectation if I go prochager. Thinking about the same setup and as you but with an F1A. Dind't realize that the next up on the injectors would be difficult to tune and going with BIG STUFF wasn't in my future plans.

Thanks

Just do a F1C and be done with it. Not hard to do a secod time around, just cover al bases ahead of time

Jan 16, 2007 | 02:36 PM

#63

GrannySShifting

TECH Junkie

iTrader: (10)

Joined: Nov 2001

Posts: 3,944

Likes: 21

From: Glen Burnie, Md

Quote:

Originally Posted by DJ's99SS

Get with Textralia on the problem...they have great customer support. I was using their twin disc but since went to the Triple. So far so good after some machining issues we had to address...and yes I believe your correct. They are RC 72 but flow 750cc's at 43.5lbs of FP. Not sure why your seeing such high DC with these...? Have you tried a volt booster or similar product to help? I'm using the Casper Electronics V-Plus volt booster. I'm at 18psi with zero problems with the injectors keeping up...

What kind fo hp on what dyno? What dutycycle and WOT fuel pressure.

Jan 16, 2007 | 02:52 PM

#64

MrDude_1

TECH Junkie

iTrader: (4)

Joined: Feb 2002

Posts: 3,368

Likes: 5

From: Charleston, SC

Quote:

Originally Posted by DJ's99SS

Clutches do not belong on pool tables.

im going to have to confiscate that pool table until you learn how to treat it nice.

(nice clutch and pool table

)

Jan 16, 2007 | 02:56 PM

#65

8 Second Club

iTrader: (34)

Joined: Nov 2001

Posts: 10,852

Likes: 1

From: Knoxville, TN

Quote:

Originally Posted by GrannySShifting

We found about 10-13% more duty cycle to go. not enough

What box and problems did you have KP?

I could never get the car to idle right or be real clean in the low/mid RPM range. I would put the hi impedence injectors back in and it was fine. So I tried a different one, it idled fine but the a/f was doing screwt things at high RPM so I sent it bak and they sent me a new one so I just sold it and did the BS3. Got tired of soldering wires and wondering if it would work..

Jan 16, 2007 | 06:27 PM

#66

BLASTER

TECH Fanatic

iTrader: (4)

Joined: Feb 2003

Posts: 1,527

Likes: 0

From: bridgwater, nj

Quote:

Originally Posted by GrannySShifting

Just do a F1C and be done with it. Not hard to do a secod time around, just cover al bases ahead of time

no thanks. I know my limits. With all the clutch, injector, & t56 issues i see happening here @ this power level makes me think a D1 would suite me just fine.

You guys are scaring me back to reality

good luck

Jan 16, 2007 | 08:35 PM

#67

Posi12Bolt

TECH Enthusiast

iTrader: (13)

Joined: Mar 2005

Posts: 593

Likes: 0

From: Vacaville CA 707

Quote:

Originally Posted by TrakDay

I swaped from a D1SC to an F1C on my GTO and it was a retarded difference!

I don't really know why... but that made me laugh out loud at work...ooops..

Jan 16, 2007 | 10:22 PM

#68

DJ's Z

TECH Fanatic

iTrader: (10)

Joined: Nov 2001

Posts: 1,458

Likes: 0

From: Mont Belvieu, Tx.

Quote:

Originally Posted by GrannySShifting

What kind fo hp on what dyno? What dutycycle and WOT fuel pressure.

I'll have to break out some notes and figures. Can't remember "exactly" where everything was at. We did most of the WOT tuning in "real world" driving. Only checked a few things on the dyno...I'll see what I can find for you in my pile of misc papers on the build.

From what I remeber I was at 880RWHP blowing through a Spec 5 clutch on a Dyno Jet Dyno. Did some pulls on a Mustang Dyno with the same clutch issues. Was around 788RWHP on the Mustang Dyno...Fuel pressure is set at 58psi base with vaccum line disconnected from FPR and boost ref 1:1. I believe I'm at 62psi with line hook up at idle. Running dual 340 intank Walbros. Second pump comes on at 7psi of boost. I want to say DC was around 86% at WOT. 7200RPMS / 18lbs of boost. I'm also running a Casper Electronics volt blaster...

Last edited by DJ's99SS; Jan 16, 2007 at 10:29 PM.

LS1 Tech Stories

The Best V8 Stories One Small Block at Time

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Brett Foote

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

Jan 16, 2007 | 10:30 PM

#69

DJ's Z

TECH Fanatic

iTrader: (10)

Joined: Nov 2001

Posts: 1,458

Likes: 0

From: Mont Belvieu, Tx.

Quote:

Originally Posted by MrDude_1

Clutches do not belong on pool tables.

im going to have to confiscate that pool table until you learn how to treat it nice.

(nice clutch and pool table

)

LOL...was as good a place as any to grab a few shots at the time...

Jan 17, 2007 | 02:01 AM

#70

SRZ

TECH Fanatic

iTrader: (14)

Joined: Nov 2002

Posts: 1,170

Likes: 12

From: FL

Quote:

Originally Posted by kp

heh, you will find alot more weak parts along the way

I have ran both the 72lb RC and 60lb motorons and the hi impedence 72s dont really flow a whole bunch more up top then the 60s. These 75lb delphi low impedence injectors are around 20% less duty cycle then the RC 72s, same fuel system. Maybe it was just me but I didnt have a lot of luck with the converter boxes.

That's interesting KP as I have the hi impedance RC 72's but no converter box just the XFI.

Thinking of going low 83's but 1st I have to see how these injectors will do.

Jan 17, 2007 | 10:36 AM

#71

8 Second Club

iTrader: (34)

Joined: Nov 2001

Posts: 10,852

Likes: 1

From: Knoxville, TN

Quote:

Originally Posted by SRZ

That's interesting KP as I have the hi impedance RC 72's but no converter box just the XFI.

Thinking of going low 83's but 1st I have to see how these injectors will do.

The 72s worked fine (not trying to talk anyone out of using them), just didnt seem to really flow a lot more the the 60s in my case. Some guys have used them with success but I dont know how many compared them directly to the 60's. I really got tired of all the band aid approaches of getting more fuel, with the same pump/pressure I went from 99% DC using 60/57s to 95% DC using the 72s to 80% using the Delphi 75lb low Z iinjector running similar boost/hp and a/f.