Why 6.0s are so thirsty?
11-07-2017, 12:54 PM
#401
TECH Senior Member
11-07-2017, 12:57 PM
#403
TECH Senior Member
Does the L92 use DOD and/or VVT? Might explain some of the difference in efficiency, along with better breathing.
11-07-2017, 12:58 PM
#405
For real? Are they LS3 heads?
The new trucks (hd) have a 6.0 and I was wondering what they are like. Buddy said he saw one that's direct port, I think he's wrong, I cant find anything saying there is direct port on anything but gen 5
And I've been considering the speed engineering intake and headers for my NBS (for mpg and the bump in power). They have an intake that looks just like the K&N etc spectre for $69 IIRC
The new trucks (hd) have a 6.0 and I was wondering what they are like. Buddy said he saw one that's direct port, I think he's wrong, I cant find anything saying there is direct port on anything but gen 5
And I've been considering the speed engineering intake and headers for my NBS (for mpg and the bump in power). They have an intake that looks just like the K&N etc spectre for $69 IIRC
Spectre is like $160 ish from summit.
Im working to get direct with them and hate sending people somewhere else, but i we dont have it then i have to. pn is 9900 iirc for 99-06 trucks.
11-07-2017, 01:11 PM
#407
TECH Senior Member
There is an LH9, but it's a 5.3. What year is yours?
11-07-2017, 01:47 PM
#408
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This is sorta funny, but I think relevant. My suburban on a good day with pure gasoline (not e10) and a 5.3 got 14.7 mpg average and would get up to 16 on the highway unless it was downhill the whole way. I was a dumbass and put a LS6 cam in it, and the mileage dropped to 13.5 average, but stayed 16 highway.
Test drove a 2007 escalade last week for ***** and giggles with the 6.2 in it, and after resetting the dash, it got 18 average and 20-21 on the short highway run we made. I know that driving it for an hour isn't the same thing, but it did FAR better than even the 5.3 on fuel.
Haven't looked into the DOD or VVT side of it, but I don't think that explains it all, which is why i'm asking about the combustion chambers.
11-07-2017, 02:03 PM
#409
Darth it would be more towards the VVT/DOD the chambers help but at 16 vs 20 is due to more tech being used. Cleaning up a chamber helps but when you can tell cylinders to not use fuel or less fuel it makes MPG grow. Can you have a VVT solid roller? LOL! That'd be trick. FTI makes or sales aftermarket hydraulic VVT cams.
11-07-2017, 02:39 PM
#410
TECH Senior Member
So do Cam Motion, Texas Speed, and a BUNCH of others...
11-07-2017, 03:16 PM
#412
TECH Senior Member
And probably an increase in dependability too!
11-07-2017, 04:09 PM
#414
For the intake tube. It's a piece of plastic tubing and stamped sheet metal. Origin isn't going to make much of a difference. And it's 69 vs 169. What exactly am I getting that's worth the 100 on those basic *** parts? That's how I see that one. And if I don't like the filter I can upgrade it and still be way ahead.
The headers.. well if they work and hold up sweet. If they don't.. They're cheap so I don't have super high expectations. Then there's the... some chinese **** is getting/has been pretty decent and just because it's chinese doesn't automatically mean ****, I do follow your drift, generally it means sub par. Has anyone been reporting issues with the speed engineering parts? Also I need to be par for the course. This truck has 190k, the clear coat is peeling. Has a dented fender. You get the point.
Lastly, i'm interested in hearing people's experience with them. If they fall apart i'll avoid, if not, then it's a hell of a deal for a set of damn decent headers.
Are the combustion chambers themselves ont he L92 heads more efficient than the 317? that would explain alot.
This is sorta funny, but I think relevant. My suburban on a good day with pure gasoline (not e10) and a 5.3 got 14.7 mpg average and would get up to 16 on the highway unless it was downhill the whole way. I was a dumbass and put a LS6 cam in it, and the mileage dropped to 13.5 average, but stayed 16 highway.
Test drove a 2007 escalade last week for ***** and giggles with the 6.2 in it, and after resetting the dash, it got 18 average and 20-21 on the short highway run we made. I know that driving it for an hour isn't the same thing, but it did FAR better than even the 5.3 on fuel.
Haven't looked into the DOD or VVT side of it, but I don't think that explains it all, which is why i'm asking about the combustion chambers.
This is sorta funny, but I think relevant. My suburban on a good day with pure gasoline (not e10) and a 5.3 got 14.7 mpg average and would get up to 16 on the highway unless it was downhill the whole way. I was a dumbass and put a LS6 cam in it, and the mileage dropped to 13.5 average, but stayed 16 highway.
Test drove a 2007 escalade last week for ***** and giggles with the 6.2 in it, and after resetting the dash, it got 18 average and 20-21 on the short highway run we made. I know that driving it for an hour isn't the same thing, but it did FAR better than even the 5.3 on fuel.
Haven't looked into the DOD or VVT side of it, but I don't think that explains it all, which is why i'm asking about the combustion chambers.
I get around 12-13 with my 5.3 truck but i'm never easy on it. It was 17-18 when I was with mixed street and highway. If i'm nice to it and stick to the highway and stay between 60-64 i'll avg 19-20 MPG for the tank. 16-17 being easy on it all street. It was 14.x easy on it all street with stock tune and manual fan. Life time MPG on the truck was 15.8 when I got it at 80k. Now at 190k it's 13.x
The yukon is bigger and heavier and has a 6.2 and gets (driving style for driving style) a good 3-4 mpg better than my 5.3 2wd extended cab.... Not what I expected. 8 gears likely has something to do with it.
I wonder if we compared 4L60 5.3 trucks to non DOD 6L80 trucks what we would see.
Last edited by 00pooterSS; 11-07-2017 at 04:17 PM.
11-07-2017, 04:19 PM
#415
Ive seen no less than 5 sets since May of speed eng dual kits for fbodys bought and for sale 2 weeks later on 1 fbody fb page alone.
The tube isnt all to look for. Filter quality as well. But spectre has the maf sleeve because the truck maf is diff on the outlet. Using that sleeve and their couplers you get a full 3 1/2" or 4 (checking mine later) inches from filter back. Only transition is the id of maf itself. Plus it uses an air horn for the filter adapter. Its an alum tube also not plastic with chrome paint.
Only downside is you have to use the stock airbox adapter coupler but not a huge deal unless you dont have one.
The tube isnt all to look for. Filter quality as well. But spectre has the maf sleeve because the truck maf is diff on the outlet. Using that sleeve and their couplers you get a full 3 1/2" or 4 (checking mine later) inches from filter back. Only transition is the id of maf itself. Plus it uses an air horn for the filter adapter. Its an alum tube also not plastic with chrome paint.
Only downside is you have to use the stock airbox adapter coupler but not a huge deal unless you dont have one.
11-07-2017, 04:24 PM
#416
Ive seen no less than 5 sets since May of speed eng dual kits for fbodys bought and for sale 2 weeks later on 1 fbody fb page alone.
The tube isnt all to look for. Filter quality as well. But spectre has the maf sleeve because the truck maf is diff on the outlet. Using that sleeve and their couplers you get a full 3 1/2" or 4 (checking mine later) inches from filter back. Only transition is the id of maf itself. Plus it uses an air horn for the filter adapter. Its an alum tube also not plastic with chrome paint.
Only downside is you have to use the stock airbox adapter coupler but not a huge deal unless you dont have one.
The tube isnt all to look for. Filter quality as well. But spectre has the maf sleeve because the truck maf is diff on the outlet. Using that sleeve and their couplers you get a full 3 1/2" or 4 (checking mine later) inches from filter back. Only transition is the id of maf itself. Plus it uses an air horn for the filter adapter. Its an alum tube also not plastic with chrome paint.
Only downside is you have to use the stock airbox adapter coupler but not a huge deal unless you dont have one.
Their intake tube is black. There is an air horn. No adapter to stock box. It's k&n style with a sheet metal shield that "blocks engine heat" pfft. They don't advertise that, K&N does.
Honestly I've been thinking I may be better off just getting a plastic tube and hooking it to the stock box and keeping K&N filter that I already have in the stock box, since the stock box pulls air from the fender.
11-07-2017, 04:27 PM
#417
Take a second look man and tell me this doesn't look really damn nice for the price
I've considered the things you said above before and that's why I'm so interested in this
https://www.speed-engineering.com/fe...l-engines.html
PM me back and forth if you want to keep from cluttering the thread. I def respect your insight on these parts so if you know something about their parts I don't, i'll listen. But I have been reading and studying as I always do. I don't just jump at cheap parts, they usually cheap for a reason.
I've considered the things you said above before and that's why I'm so interested in this
https://www.speed-engineering.com/fe...l-engines.html
PM me back and forth if you want to keep from cluttering the thread. I def respect your insight on these parts so if you know something about their parts I don't, i'll listen. But I have been reading and studying as I always do. I don't just jump at cheap parts, they usually cheap for a reason.
11-07-2017, 04:37 PM
#418
Take a second look man and tell me this doesn't look really damn nice for the price
I've considered the things you said above before and that's why I'm so interested in this
https://www.speed-engineering.com/fe...l-engines.html
PM me back and forth if you want to keep from cluttering the thread. I def respect your insight on these parts so if you know something about their parts I don't, i'll listen. But I have been reading and studying as I always do. I don't just jump at cheap parts, they usually cheap for a reason.
I've considered the things you said above before and that's why I'm so interested in this
https://www.speed-engineering.com/fe...l-engines.html
PM me back and forth if you want to keep from cluttering the thread. I def respect your insight on these parts so if you know something about their parts I don't, i'll listen. But I have been reading and studying as I always do. I don't just jump at cheap parts, they usually cheap for a reason.
Its a copy of the spectre otherwise which is what china does lol. idk about the maf sleeve though.
Crinkle seems nice but idk how long itll last.
Ive used spectre on so many builds and my own 3 personal trucks 2 gmt800s and 1 gmt900. Id not chance it on that setup if it were me. Cheaper isnt always the same. Buy it and try it is all i can say but spectre has my and our shops business for alot of reasons. Use them to adapt to 104mm lids or 100 mafs or tbs or whatever. their stuff is good.
The dual exhaust part, they drug, hung too low, rattled and the clamps sucked. Their clamps sucking is common knowledge and everyone complains about them.
11-07-2017, 04:46 PM
#419
It seems pertinent to the thread. I wouldn't use em. Def a different filter vs the Spectre or any k&n.
Its a copy of the spectre otherwise which is what china does lol. idk about the maf sleeve though.
Crinkle seems nice but idk how long itll last.
Ive used spectre on so many builds and my own 3 personal trucks 2 gmt800s and 1 gmt900. Id not chance it on that setup if it were me. Cheaper isnt always the same. Buy it and try it is all i can say but spectre has my and our shops business for alot of reasons. Use them to adapt to 104mm lids or 100 mafs or tbs or whatever. their stuff is good.
The dual exhaust part, they drug, hung too low, rattled and the clamps sucked. Their clamps sucking is common knowledge and everyone complains about them.
Its a copy of the spectre otherwise which is what china does lol. idk about the maf sleeve though.
Crinkle seems nice but idk how long itll last.
Ive used spectre on so many builds and my own 3 personal trucks 2 gmt800s and 1 gmt900. Id not chance it on that setup if it were me. Cheaper isnt always the same. Buy it and try it is all i can say but spectre has my and our shops business for alot of reasons. Use them to adapt to 104mm lids or 100 mafs or tbs or whatever. their stuff is good.
The dual exhaust part, they drug, hung too low, rattled and the clamps sucked. Their clamps sucking is common knowledge and everyone complains about them.
For $500 I wouldn't care about putting a little into the hanging part and they revised it to make it sit higher so the new run should do better. Guys in the thread took the bolts out of the clamps and got grade 8 hardware for them for under $10 they said and the clamps worked good. I hear you, it's problematic, but for me and my budget I'd be hella willing to work with a couple of parts and invest a small amount to make it work great. The rattling and hanging sometimes is just part of the exhaust game, it takes a lot of tweaking. And I hated the way the magnaflow was on the SN, no matter how I adjusted it it was always a problem and hung weird so I can't say the SE is really much worse than others.