Will I need to upgrade injectors with a cam swap?
This is a discussion on Will I need to upgrade injectors with a cam swap? within the General Help forums, part of the LSx Technical Help Section category; Originally Posted by qwik219d9 do you have a link for these 42LBers? and will the GM electrical plug have to ...
10-31-2009, 09:42 AM #21
10-31-2009, 03:00 PM #22
11-11-2009, 10:01 PM #23
Damn injectors are a bit pricey hi-po, those ones you linked were the cheapest.
Anyone know if Cobra injectors would work?
I'm sure these ones will work fine:
11-12-2009, 05:01 PM #24
11-12-2009, 05:13 PM #25
11-12-2009, 05:15 PM #26
11-12-2009, 05:31 PM #27
Try the 30# out, they will probably be enough. I cant say because I have no personal experience with them. I just ran over some of my most recent 11 second logging and I'm at 66% DC at 6800 RPM with these 42#ers. I would think you would be alright.
11-12-2009, 05:34 PM #28
11-12-2009, 05:55 PM #29
11-12-2009, 06:02 PM #30
11-12-2009, 07:30 PM #31
Looking back, The LS1 and LT1 share the same EV1 rectangular port compared to the "round" port of the LS2 (05-06 GTO). I think they will work, but research a little more.
11-12-2009, 09:49 PM #32
tuned or just data logged w/ HP
however if the DC was high ? what would be to high anything above 85%?
I would have to buy a HP tuners credit for him to correct w/ tuning I'm thinking a HP tuners credit is like $47. plus a little extra for his time.
it would probably be smart to have larger injectors on hand during this time if they are needed for a quick swap.
I will be connecting the fuel preasure guage up this week this expert told me I would'nt see any drop off in FP and the problem w/ 99 models is the small 26LBer maxing it's DC.
thanks for any feedback.
Last edited by qwik219d9; 11-12-2009 at 09:51 PM.
11-12-2009, 09:56 PM #33
80% is max I have read
11-12-2009, 09:58 PM #34
11-12-2009, 10:00 PM #35
One credit is 50 bucks, its takes two credits to make any changes.
85% would be a nice place to start thinking about swapping. I ran mine at 91% for quite awhile. 85% would be fine on a NA setup IMO.
Your friend needs to have the proper/correct fuel injector scaling numbers or needs to know how to figure them out. I wouldn't go off buying new injectors without logging the ones you have now.
11-12-2009, 10:03 PM #36
11-12-2009, 10:10 PM #37
I mean, when you are adding power to an N/A setup, it's gonna lose mileage cuz you are always making more power I figure. I quit worrying, because I'm gonna add power, so what does it matter?
So what about the 42lbers off an LS7...I'm not getting much input
11-12-2009, 10:10 PM #38
I was suspecting a low FP at WOT that would be easy to observe w/ a meter
I have been told conflicking infor. about these 26LBers (been told by speed inc there good for 425RWHP before maxing out) I'm at 380RWHP.
so I suspecting a preasure issuse.
I did'nt know it takes 2 credits for a change.
thanks for feedback.
11-12-2009, 10:15 PM #39
11-12-2009, 10:23 PM #40
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