I need just some random facts about our L03 engines...

1)Broadcast code for 1228063 ECU in an '88 Camaro. (auto, federal emission, 2.73)
2)Compression ratio
3)Camshaft duration @.050
4)Camshaft lobe separation
5)Size of stock injectors

I think that pretty much covers it. Any help is appreciated as always.

-Mark W.
'88 SC Camaro w/ 305 TBI

 

1) not the first clue
2) 9.5:1
3) not enough
4) think of a really weak cam. then make it worse. it's about that.
5) 55 lb/hr

 

55#? I didn't think they were even that big. I would have guessed 45#. I've got a bit of a typo that I just noticed on my first question. It should read...
1)PROM broadcast code for 1228063 ECU in an '88 Camaro. (auto, federal emission, 2.73)

I'll probably have to call the dealership to find out about that one.

-Mark W.
'88 SC Camaro w/ 305 TBI

 

I'll answer a few of my own questions...
Cam lift is .350/.384
Cam duration is 179/194
Cam LSA is 109

-Mark W.
'88 SC Camaro w/ 305 TBI

 

The compression ratio is 9.3 to 1, not 9.5 to 1. Where did you find the cam specs?

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1989 Pontiac Firebird Formula LO3 Auto
-180 degree stat
-Hooker Cat-Back
*****Possible summer '01 mods*****
Open Element, Auburn Posi, Keyless Entry, wonder Bar off the IROC, 4th gen seats, T/A tail lights

1985 Camaro IROC-Z LB9 Auto
http://www.geocities.com/krt80/

 

It was from a site called "The Camaro Technical Database", I don't think that it exists any more. I had copied it down back almost a year or so ago and I found it on my old computer.
According to the injector size chart the L03 has 40# injectors, my guess was pretty close.

-Mark W.
'88 SC Camaro w/ 305 TBI

 

40#?? That seems awful low to me... A total of 80# seems really low even for an LO3. The direct replacement flow matched injectors I got from Turbo City are 55#.

 

Keith5
About the compression ratio, My 89 RS's Owner's Manual states that it has 9.5:1
Where did you get 9.3:1 ?? Just Curious.

------------------
82 Z28 350, Ported #882 Heads, Performer RPM cam and intake, hedman headers,650 Demon carb,
Trans: Turbo 350 w/ 4000 stall -- Rearend 7.5 w/ Richmond 4.10's, Auburn Minispool
Best ET: 12.52@107.2
Future plans: Dart headed, Roller cammed 383 in early '01


89 RS, L03 305, Hypertech Chip,cat delete, Dynomax exhaust,K&N open element Filter,160 stat, MSD coil --Trans:700R4 Corvette Servo -- Rearend: 7.5 GM 3.42 w/ posi-lock
New Best ET: 14.91 @92.9
Bassett Racing
Mid Atlantic F Body -82 Z28 Page

 

Where did you find it in the manual? I can't find it. Maybe my '89 birds book is the same as yours, what page is it. http://www.phy.duke.edu/~hartley/iroc/iroc_specs.html

This is where I found it, I think I've seen it over places too. I hope this source isn't wrong.

 

Well this sucks, I just found it in my book too. I've seen other people on here that are under the impression that we have 9.3 to 1. And worst of all look at the top in the title bar, "Specs from thirdgen.org"

 

That's why I was asking, I mean it's really no big deal either way, .2 points of compression would hardly be noticable. I, like you, have seen several posts saying 9.3:1, but I thought my Owner's Manual said, 9.5:1, so after I read your post, I went out to the car, got the manual and checked it, and saw 9.5:1 But anyway, I guess now we know, since your manual says it too.

------------------
82 Z28 350, Ported #882 Heads, Performer RPM cam and intake, hedman headers,650 Demon carb,
Trans: Turbo 350 w/ 4000 stall -- Rearend 7.5 w/ Richmond 4.10's, Auburn Minispool
Best ET: 12.52@107.2
Future plans: Dart headed, Roller cammed 383 in early '01


89 RS, L03 305, Hypertech Chip,cat delete, Dynomax exhaust,K&N open element Filter,160 stat, MSD coil --Trans:700R4 Corvette Servo -- Rearend: 7.5 GM 3.42 w/ posi-lock
New Best ET: 14.91 @92.9
Bassett Racing
Mid Atlantic F Body -82 Z28 Page