Computer Edit, 42lb Injectors Timing
Thread Starter
Drifting
Joined: May 2004
Posts: 1,536
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From: Bristol CT
Computer Edit, 42lb Injectors Timing
Just curious what kind of HP/TQ increase i can expect with the LT1 edit/42Lb injectors and getting the timing fixed.... 5-10 10-15 15-20? Whats a reasonable expectation assuming the car is poorly tuned...
Le Mans Master
Joined: Jan 2003
Posts: 8,596
Likes: 19
From: Portland Oregon
Originally Posted by LT1Vetteguy78
Just curious what kind of HP/TQ increase i can expect with the LT1 edit/42Lb injectors and getting the timing fixed.... 5-10 10-15 15-20? Whats a reasonable expectation assuming the car is poorly tuned...
Thread Starter
Drifting
Joined: May 2004
Posts: 1,536
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From: Bristol CT
Originally Posted by tjwong
If your engine is stock there is no need to use 42lb injectors. GM does not leave much left on the table in the ways of gains from the stock programming. There is a little to be had by leaning out the PE tables because they are inherently rich in that area. But as for adding a lot of timing it may be more of a detrement to the programming as the timing tables are pretty hot as they are. That is why they installed two knock sensors in the engine. Typically you will find about 35 degrees of total timing in the maps.
Melting Slicks
Joined: Oct 2000
Posts: 3,426
Likes: 4
From: Heidelberg PA
Cruise-In V Veteran
Originally Posted by jerkyboy
my poorly tuned overly rich running 383 was running FP at 50lbs. Turned down to 42lbs and picked up 50rwhp. How ya like them apples?
Aren't you talking about fuel pressure not fuel injectors?
You were obviously running extremely fat. What was your final number after picking up 50HP?
Melting Slicks
Joined: Dec 2000
Posts: 2,719
Likes: 60
From: Fremont Oh
LT!,
I personally would settle for 36 pounders for the sake of idle... The main key is that you can up the fuel pressure as you increase boost. 42's are the magic number but i have also heardthat the owners have a bit of truble getting the idle right.
I'd venture to say "maybe" 15-20" hp gain you may get from the injectors. This is mainly because you are no running your injectors to 100 % to feed the fiery beast. But as you may well know there are a ton of variables as to rpm's etc etc where you would gain the extra horses. The best think going is your intercooler.
I'm running LT1 edit as well a supplemental fuel pumper so I along with timing changes made the most changest in the MAF and the PE tables as the others have mentioned.
if you need more input feel free to email me...
Mo
I personally would settle for 36 pounders for the sake of idle... The main key is that you can up the fuel pressure as you increase boost. 42's are the magic number but i have also heardthat the owners have a bit of truble getting the idle right.
I'd venture to say "maybe" 15-20" hp gain you may get from the injectors. This is mainly because you are no running your injectors to 100 % to feed the fiery beast. But as you may well know there are a ton of variables as to rpm's etc etc where you would gain the extra horses. The best think going is your intercooler.
I'm running LT1 edit as well a supplemental fuel pumper so I along with timing changes made the most changest in the MAF and the PE tables as the others have mentioned.
if you need more input feel free to email me...
Mo
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Thread Starter
Drifting
Joined: May 2004
Posts: 1,536
Likes: 0
From: Bristol CT
I would be happy with 15-20hp gain....But someone told me before....once i get this SC in...i'm gonna want even more power.....and i was thinking NAHHHH..this will be fine...BOOYYY was i wrong.....
