Engine bay is done! A few issues with first startup...

Reply Subscribe

Thread Tools

Search this Thread

Jun 1, 2010 | 01:39 PM

#21

Formula383

Thread Starter

10 Second Club

iTrader: (8)

Joined: Feb 2006

Posts: 980

Likes: 0

From: Round Rock, TX

Quote:

Originally Posted by whytryz28

Weird...

Hey what opti you running on that thing?

Dynaspark

Jun 1, 2010 | 01:40 PM

#22

whytryz28

TECH Junkie

iTrader: (28)

Joined: Feb 2007

Posts: 3,757

Likes: 2

From: Hawaii

Quote:

Originally Posted by Formula383

Dynaspark

Is that like the Delphi optis? Im replacing mine with an ac delco one, which would be the best choice?

Jun 1, 2010 | 01:49 PM

#23

Formula383

Thread Starter

10 Second Club

iTrader: (8)

Joined: Feb 2006

Posts: 980

Likes: 0

From: Round Rock, TX

Quote:

Originally Posted by whytryz28

Is that like the Delphi optis? Im replacing mine with an ac delco one, which would be the best choice?

It all works the same. The dynaspark is made much better but is also more expensive. Take a minute and read up on their site.

http://www.dynaspark.net/advantage/

After receiving mine and seeing the quality put into the dynaspark, I would not hesitate to get another one if needed. I know of a few high horsepower LT1's with this unit and they have had zero issues.

Last edited by Formula383; Jun 1, 2010 at 02:00 PM.

Jun 1, 2010 | 02:03 PM

#24

jay7199

TECH Resident

iTrader: (9)

Joined: May 2009

Posts: 809

Likes: 0

From: Austin/Cedar Park

Jun 1, 2010 | 02:14 PM

#25

I8ASaleen

TECH Fanatic

iTrader: (9)

Joined: Mar 2006

Posts: 1,266

Likes: 0

From: N. Richland Hills

I would have to agree with everyone else on the #8 pigtail issue because if you swapped the injectors out and the issue remained it must be the wiring.

Jun 1, 2010 | 03:30 PM

#26

12345678910

On The Tree

Joined: Dec 2006

Posts: 108

Likes: 0

From: dayton,oh

i had that problem on a sbc had to readjust the valves

Jun 1, 2010 | 03:36 PM

#27

Formula383

Thread Starter

10 Second Club

iTrader: (8)

Joined: Feb 2006

Posts: 980

Likes: 0

From: Round Rock, TX

Quote:

Originally Posted by 12345678910

i had that problem on a sbc had to readjust the valves

I was inclined to think that at first also, however I had the same problem on a different set of heads, cam and intake last fall. So 2 different combos with the same problem makes me think it's something external to the engine.

Jun 2, 2010 | 08:30 AM

#28

Formula383

Thread Starter

10 Second Club

iTrader: (8)

Joined: Feb 2006

Posts: 980

Likes: 0

From: Round Rock, TX

Changed the injector pigtails on #2 and #8 last night. The #8 primary is still getting extremely hot after only a few minutes at idle. I will pull the spark plug out today. It was too hot to get to last night.

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

Jun 2, 2010 | 09:31 AM

#29

FASTFATBOY

TECH Veteran

iTrader: (23)

Joined: Nov 2002

Posts: 4,861

Likes: 2

From: Mobile Ala

Quote:

Originally Posted by JB_97ws6TA

as far as the glowing primary is concerned the only thing that i can think of off hand is injector related. LT1 pcms cannot tune individual cylinders so if it is only one primary on one bank than I would check injector pulse with a noid light and if that checked out than perhaps I would consider swapping that injector with another on the same bank and see if the problem follows the injector or stays with the cylinder. I wouldn't run the car very long until you get that panned out, if it is running that lean to get a glowing primary without any real load than you could potentially do some serious damage. Good luck

According to Ed Wright LT1 ecms CAN in fact tune individual cylinders.

I would look at that injector ASAP. I would not run the car until I figured that out.

And FYI Single planes are notorius for corner cylinders being lean, it has to be corrected with porting.

My car has hurt #8 two times now. I had the intake ported this time.

Jun 2, 2010 | 09:46 AM

#30

Formula383

Thread Starter

10 Second Club

iTrader: (8)

Joined: Feb 2006

Posts: 980

Likes: 0

From: Round Rock, TX

Quote:

Originally Posted by FASTFATBOY

Yeah, I think you're right (and Ed of course). I found the "Individual Cylinder Fuel Trim Multiplier" table in CATS Tuner for tuning the cylinders but everything in that table appears to be normal. I tried swapping #1 and #8 injectors but #8 was still a problem. So I don't think it's an injector problem. After talking with LE this morning, I may have a weak spark to #8 which is causing fuel to be burned in the primary instead of in the combustion chamber. I plan on picking up some plug wires this afternoon and trying again. #8 is hard to get to and I very well may have damaged the wire taking it off/on and it's the one thing that has remained the same across builds.

Thanks for the suggestions. I will let you know what I find.

Jun 2, 2010 | 10:49 AM

#31

MasterTomos

TECH Junkie

iTrader: (15)

Joined: Oct 2008

Posts: 3,509

Likes: 4

From: Midwest

engine bay/intake=

that's how the air intakes should have been from the factory! bastards!
lookin good tho!

Jun 2, 2010 | 01:05 PM

#32

Fondle

TECH Regular

iTrader: (4)

Joined: Mar 2009

Posts: 414

Likes: 0

From: ATX

Quote:

Originally Posted by Formula383

Fixed!!

Yeah, somewhere during the time I was at A&M, they changed from GPA to GPR. I still don't understand it...

I found the problem. You should have gone to a real school, like UT or something

Jk car looks great cant wait to see out it again, hopefully you get your problem fixed

Jun 2, 2010 | 01:28 PM

#33

Tony Shepherd

8 Second Club

iTrader: (4)

Joined: Oct 2002

Posts: 2,913

Likes: 2

From: Round Rock TX

Lloyd Elliot gets the cookie! It was the plug wire. Kyle will chyme in shortly.

Jun 2, 2010 | 01:54 PM

#34

BLK,97,T/A,M-6

TECH Regular

Joined: May 2007

Posts: 433

Likes: 0

happy to hear thats fixed... now lets see some video!

Jun 2, 2010 | 05:49 PM

#35

Verz

TECH Resident

iTrader: (21)

Joined: Aug 2006

Posts: 947

Likes: 0

From: Wichita KS

Quote:

Originally Posted by BLK,97,T/A,M-6

happy to hear thats fixed... now lets see some video!

Agreed

Jun 2, 2010 | 07:05 PM

#36

Formula383

Thread Starter

10 Second Club

iTrader: (8)

Joined: Feb 2006

Posts: 980

Likes: 0

From: Round Rock, TX

#8 read around 150K ohms! 6 wires read around 500 ohms and #3 read around 2K ohms so it was probably on it's way out too. I picked up a set of new wires and got them installed. Fuel pressure looks to be a few PSI low but the primary isn't glowing anymore.

Thanks LE!

Vid!!
http://www.youtube.com/watch?v=vmJVbj26r4s

Jun 2, 2010 | 07:22 PM

#37

gregrob

TECH Senior Member

iTrader: (8)

Joined: Sep 2008

Posts: 5,130

Likes: 4

From: 6,000+ feet

Hump worthy

Jun 2, 2010 | 08:13 PM

#38

flyinZ

TECH Addict

iTrader: (15)

Joined: Jun 2002

Posts: 2,642

Likes: 0

From: IL

Looks yummy! Sounds great, man.

Jun 3, 2010 | 03:54 PM

#39

JAKEJR

TECH Regular

Joined: Apr 2007

Posts: 420

Likes: 0

From: Kempner, TX

Quote:

Originally Posted by Formula383

Wow, one letter out of 147 words and my spelling sucks. Damn, guess my 3.98 GPR in college wasn't enough for the interwebs.

No need to defend that error. None of us is "prefect". LOL

Jake

My son, Ryan M. Cameron, graduated from West Point on 22 May 2010! He was commissioned as a 2nd Lieutenant and I pinned on his first pair of "Butter Bars" PROUDEST DAY OF MY LIFE!!

Jun 3, 2010 | 04:49 PM

#40

Tapout911

Launching!

iTrader: (9)

Joined: May 2006

Posts: 212

Likes: 0

From: Paragould AR

Was really hoping you wouldnt figure out the problem. Cars get real cheap in moments of frustration and I was willing to come take it off you hands lol. Sounds and looks great as always. Wish I had your patience

Reply Share

First
Prev
2 / 3
Next
Last