I have been searching around for cams for my 4.8 locally and a shop recommended 212/218 texas speed cam with 115 lsa. I am looking for something thats not too choppy where its too noticeable. Do you guys think that these cams are good enough? I'm trying to squeeze out as much power out of my 4.8 that's why I have been considering buying a turbo kit from xs-power turbo. Does anyone have any experience with this brand? I know they are the ones that build LPP headers so I figured their turbos would be legit.
cams and turbo question
- Thread starter Nosho47
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Big Buttons
The SS Burb
What are your goals for your truck?
Big Buttons
The SS Burb
Intake, Long tube headers, exhaust, cam and valve springs, hardend push rods, stall, and gears and a good tune. That will make your truck pretty fast.
I already have an intake, exhaust, headers is on its way and received my tuner earlier this week. Would the cams I posted work well?
---------- Post added at 12:22 PM ---------- Previous post was at 12:20 PM ----------
Will gears affect my mpg?
---------- Post added at 12:22 PM ---------- Previous post was at 12:20 PM ----------
Will gears affect my mpg?
ezdaar
Chat Troll
your better off swapping it to a 5.3, call texas speed for a "package" and you will be happy for atleast a week till you want more. 
XS power turbo kits are complete junk. Its all universal parts that need to be modded to work on any vehical.
If you really want a turbo kit, look to trick performance and get a diesel catback.
This kit is actually designed to fit in your vehical.
XS power turbo kits are complete junk. Its all universal parts that need to be modded to work on any vehical.
If you really want a turbo kit, look to trick performance and get a diesel catback.
This kit is actually designed to fit in your vehical.
I don't want to go through all the trouble swapping out to a 4.8. I have contacted comp cams and they recommended a 212 212 with valve lift of .522 .522 on a 115 LSA. If I do go with this can, I may just get a 2000-2500 stall converter. Is there a certain brand converter that you guys recommend?
Big Buttons
The SS Burb
Circle D. http://www.circledspecialties.com/p-7-gm-300mm-hp-4l60-ls-torque-converter.aspx
I have one waiting to go into my burb but I got a 3000-3200
I have one waiting to go into my burb but I got a 3000-3200
babamerino
Full Access Member
BigButtons... Isn't that stall for a nbs? He has a nnbs... Correct me if I'm wrong please cause I'm looking into a stall for my '11 nnbs. Thanks!!!
992dr
Full Access Member
Big beat me to it.
I added a Yank 3200 billet stall to my previous and that by far was the best mod. I also had a FLT trans, full exhaust header high flow cats and Maggy muf all 2.5", intake and 3:73s.
Gears will effect your MPGs, a stall will to. As long as you're not on it all the time you should be fine with a stall. Gearing though, you'll have to get it tuned for that gearing so your speedo reads it correctly.
baba,
As far as I know there is no difference, they are both 4l60e transmissions. Well, that is unless he has a 6 speed, hah.
I added a Yank 3200 billet stall to my previous and that by far was the best mod. I also had a FLT trans, full exhaust header high flow cats and Maggy muf all 2.5", intake and 3:73s.
Gears will effect your MPGs, a stall will to. As long as you're not on it all the time you should be fine with a stall. Gearing though, you'll have to get it tuned for that gearing so your speedo reads it correctly.
baba,
As far as I know there is no difference, they are both 4l60e transmissions. Well, that is unless he has a 6 speed, hah.
Big Buttons
The SS Burb
Same trans in the NBS and the NNBS. Except the 6-speed of course.
livingez_123
Full Access Member
What about KB racing turbo kits.... http://www.kbracing.net/about.html
babamerino
Full Access Member
So I went to the website, which one?
Big Buttons
The SS Burb
4L60 LS style High performance. 300mm is for the lower stalls 278mm is for the higher one's. I have a 278mm 3000-3200 waiting to go in.
babamerino
Full Access Member
I thought that one is for the 4 speed? I have the 6... Or does it matter? Sorry...
Big Buttons
The SS Burb
Oh shoot sorry. Your's would be this one. $100 more for the 6-speed.
http://www.circledspecialties.com/p-92-gm-278mm-hp-6l80-ls-torque-converter.aspx
babamerino
Full Access Member
Thanks bro!!!
doubletapdrew
Full Access Member
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your better off swapping it to a 5.3, call texas speed for a "package" and you will be happy for atleast a week till you want more.
+1 The 4.8L are discontinuted and getting hard to find. We had a customer come in with a 4.8L that he threw a rod in. It was still under warranty but we just couldn't find any crate motors available through GM. I think we did end up sourcing one from another dealer but it was a fiasco that took way longer than it should have.
TheFuzz
Idiot Police
^ Agreed.
I know it seems like a monumental task to do an engine swap, but if you're set on spending the time and money on a forced induction setup, get the 5.3 dude. You don't have to spend major cash on a crate motor or anything - there are scads of long blocks that can be pulled from wrecked trucks pretty cheap if you have a couple buddies and a weekend. More work? Yes. Worth it? Absolutely. The 5.3 isn't going anywhere for a good long time, and even if/when it does, they are ABUNDANTLY more common than the 4.8, make more power, and if you remove AFM they are stone reliable even with FI.
If you're just gonna do bolt-on's (cam, headers, stall, etc) then keep the powerplant you have....but if you're gonna be neck deep in the front end anyway to install and plumb a turbo kit, might as well do the swap. Just my two pennies.
I know it seems like a monumental task to do an engine swap, but if you're set on spending the time and money on a forced induction setup, get the 5.3 dude. You don't have to spend major cash on a crate motor or anything - there are scads of long blocks that can be pulled from wrecked trucks pretty cheap if you have a couple buddies and a weekend. More work? Yes. Worth it? Absolutely. The 5.3 isn't going anywhere for a good long time, and even if/when it does, they are ABUNDANTLY more common than the 4.8, make more power, and if you remove AFM they are stone reliable even with FI.
If you're just gonna do bolt-on's (cam, headers, stall, etc) then keep the powerplant you have....but if you're gonna be neck deep in the front end anyway to install and plumb a turbo kit, might as well do the swap. Just my two pennies.
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