2014 LT1/Gen 5 engine development well underway at Livernois Motorsports
07-08-2013, 08:56 AM
#21
Looks like they went from 355hp to 380 and 383tq to 416 on the 5.3 with 87 vs e85. I would imagine if you would get similar gains on the 6.2 you'll be around 450hp on e85 with the truck engine and 480-490hp with the vette. Also it looks like the l-83 5.3 heads will be an awesome option for a gen 3/4 small bore engine with its 57~cc chamber and 248cc intake. Looks like some sweet stuff comming to the hotrod community!
07-08-2013, 10:49 AM
#23
Teching In
Join Date: Apr 2013
Location: SE Iowa
Posts: 41
Likes: 0
Received 0 Likes
on
0 Posts
07-08-2013, 11:06 AM
#24
TECH Apprentice
Join Date: Jan 2002
Location: Gilbert, AZ
Posts: 366
Likes: 0
Received 0 Likes
on
0 Posts
The injector sprays directly into the combustion chamber. If you adapted a manifold and injectors to convert to a gen3/4 system you would still have to find a way to plug the hole in the head. Basically no, you can't convert it. You could maybe add to it with a dual stage fuel system.
07-08-2013, 12:50 PM
#25
Teching In
Join Date: Apr 2013
Location: SE Iowa
Posts: 41
Likes: 0
Received 0 Likes
on
0 Posts
The injector sprays directly into the combustion chamber. If you adapted a manifold and injectors to convert to a gen3/4 system you would still have to find a way to plug the hole in the head. Basically no, you can't convert it. You could maybe add to it with a dual stage fuel system.
07-08-2013, 05:11 PM
#28
The injector sprays directly into the combustion chamber. If you adapted a manifold and injectors to convert to a gen3/4 system you would still have to find a way to plug the hole in the head. Basically no, you can't convert it. You could maybe add to it with a dual stage fuel system.
You could:
Weld the holes shut
Tap them for threads, and screw a plug in.
Make a dummy injector that uses the factory seals and retaining hardware to plug the hole.
Hell, if you are getting them from a junk yard just leave the stock injectors there to plug the hole.
07-08-2013, 10:02 PM
#30
Looks like they went from 355hp to 380 and 383tq to 416 on the 5.3 with 87 vs e85. I would imagine if you would get similar gains on the 6.2 you'll be around 450hp on e85 with the truck engine and 480-490hp with the vette. Also it looks like the l-83 5.3 heads will be an awesome option for a gen 3/4 small bore engine with its 57~cc chamber and 248cc intake. Looks like some sweet stuff comming to the hotrod community!
07-09-2013, 12:07 PM
#32
TECH Apprentice
Join Date: Jan 2002
Location: Gilbert, AZ
Posts: 366
Likes: 0
Received 0 Likes
on
0 Posts
The hole is only so big, and it is spraying against cylinder pressure. Just wondering where they will max out. I need to make 1000rwhp so I'm wondering if the stock injectors will have an issue with that, or if it is just a matter of supplying enough fuel to them.
07-09-2013, 04:47 PM
#34
TECH Veteran
iTrader: (12)
Join Date: Dec 2004
Location: Rockville, MD
Posts: 4,354
Likes: 0
Received 0 Likes
on
0 Posts
how were you thinking of dealing with the high pressure pump? that and.. will the LTx series camshafts work in an LSx series block (given LTx heads are used)? sorry about the 20 questions
Last edited by Wnts2Go10O; 07-09-2013 at 04:53 PM.
07-09-2013, 06:06 PM
#35
07-09-2013, 07:16 PM
#36
Teching In
Join Date: May 2013
Posts: 41
Likes: 0
Received 0 Likes
on
0 Posts
little-known fact:
direct injection heads are more restrictive than PFI heads. They trade flow for combustion performance. I've discussed this in other threads. Even if you didn't have all the fitment issues, putting a Gen V head on an earlier engine would be an uphill climb at best.
direct injection heads are more restrictive than PFI heads. They trade flow for combustion performance. I've discussed this in other threads. Even if you didn't have all the fitment issues, putting a Gen V head on an earlier engine would be an uphill climb at best.
