Carbed LS1?
#1
Member
Thread Starter
Join Date: Feb 2008
Location: Southern Middle Tennessee
Posts: 306
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1986 Black IROC
Engine: 305 Quadrajet
Transmission: 5 speed
Axle/Gears: 273
Carbed LS1?
Anybody done a carbed LS1 to their third gen? If so, was it easier to go that route than all the wiring, fuel tank/pump and so forth?
#3
Supreme Member
Join Date: Sep 2002
Location: Cary, North Carolina
Posts: 9,192
Likes: 0
Received 16 Likes
on
16 Posts
Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
Re: Carbed LS1?
There's many folks at www.horsepowerjunkies.com (a local NC board) that have done it - and many threads about it. I've also rerad many threads at www.LS1tech.com.
#6
Member
Thread Starter
Join Date: Feb 2008
Location: Southern Middle Tennessee
Posts: 306
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1986 Black IROC
Engine: 305 Quadrajet
Transmission: 5 speed
Axle/Gears: 273
Re: Carbed LS1?
I didn't know ther was a controversy surrounding the subject.. I'm still undecided about what I'm going to do with my engine and had looked around the forums.. I've read wher the LS swap is a better route than the LT swap but to expect to spend 10 grand.. Came accross the carb LS route n didn't know if it was cheaper. Is milage the same with carbed version?
#7
Member
Thread Starter
Join Date: Feb 2008
Location: Southern Middle Tennessee
Posts: 306
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1986 Black IROC
Engine: 305 Quadrajet
Transmission: 5 speed
Axle/Gears: 273
Re: Carbed LS1?
Well, whatever I do I'm putting the 6 speed in (already have the 5 speed) and didn't know if doing the LS version was worth it compared to a cammed up 1 piece 350 something similar to maybe the ZZ4... Already carbed.
Trending Topics
#8
Supreme Member
iTrader: (8)
Re: Carbed LS1?
everyone that has done the swap is extremely happy with it. I did an Iron block LQ9 swap in to my car. I got it complete with wiring for $650 add another ~$250 for F-body accessories and intake. Really, the cost is as big or elaborate as you want to go with it. It can be done cheaper. I opted for tubular k-member, a-arms and such which added money to my swap. i could have gotten away about $1000 cheaper without that stuff. You have to know wiring or get someone like pocket on these boards to do your harness for you, you have to update your cooling system and fuel system. There's more, but it depends on how you want to go about it. I've seen guys pull it off costing them $1000 in the end because they bought the entire car and parted out what they weren't going to use.
Your best bet is to read the stickies on the top of this forum. It will tell you about everything you need to know.
Your best bet is to read the stickies on the top of this forum. It will tell you about everything you need to know.
#9
Member
Thread Starter
Join Date: Feb 2008
Location: Southern Middle Tennessee
Posts: 306
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1986 Black IROC
Engine: 305 Quadrajet
Transmission: 5 speed
Axle/Gears: 273
Re: Carbed LS1?
everyone that has done the swap is extremely happy with it. I did an Iron block LQ9 swap in to my car. I got it complete with wiring for $650 add another ~$250 for F-body accessories and intake. Really, the cost is as big or elaborate as you want to go with it. It can be done cheaper. I opted for tubular k-member, a-arms and such which added money to my swap. i could have gotten away about $1000 cheaper without that stuff. You have to know wiring or get someone like pocket on these boards to do your harness for you, you have to update your cooling system and fuel system. There's more, but it depends on how you want to go about it. I've seen guys pull it off costing them $1000 in the end because they bought the entire car and parted out what they weren't going to use.
Your best bet is to read the stickies on the top of this forum. It will tell you about everything you need to know.
Your best bet is to read the stickies on the top of this forum. It will tell you about everything you need to know.
#11
Supreme Member
iTrader: (8)
Re: Carbed LS1?
I got mine from a local yard. It was still in the truck when I got there. It only had 38k miles on it so I didn't bother rebuilding it. The second one i got had 126k on it supposedly and was sitting in their warehouse. That's the one I've started building for boost when funds permit it.
#12
Member
Thread Starter
Join Date: Feb 2008
Location: Southern Middle Tennessee
Posts: 306
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1986 Black IROC
Engine: 305 Quadrajet
Transmission: 5 speed
Axle/Gears: 273
#14
Supreme Member
iTrader: (2)
Re: Carbed LS1?
If you are keeping the engine close to stock I think its just as easy to leave it fuel injected. If you are building a highly modified engine I think its easire to carb it. That way you don't need to spend a bunch of money getting it retuned after each mod...it can be done just get expensive. You really can't go wrong either way...I like these engines carbed or injected.
#16
Junior Member
Join Date: Dec 2011
Posts: 92
Likes: 0
Received 0 Likes
on
0 Posts
Car: 92 Z28
Engine: 350ci
Transmission: Th350
Axle/Gears: 3.73
#18
Supreme Member
iTrader: (13)
Re: Carbed LS1?
the base plate of my carb is above the hood line. even wthout the 2" super sucker spacer it's still above the hood line. i would budget for a cowl hood if you're planning to run a vic jr intake. i can't speak for the performer rpm though.
#19
Supreme Member
Re: Carbed LS1?
I like carb for the old school look,sound and throttle response.I like injected for the ease of startup and fuel economy if any lol.I went injected just because my motor came complete and I was already fuel injected hsr.I cant speak about ease of installation between the two but I dont see any real major differences other than a few extra wires to be sliced in.Still need to do fuel fittings/lines etc..either at the tank or under the hood either way.Still need to figureout how you want your exhaust to run.Fitment is an issue with some carbs and the hood.The carb msd box Ive heard arent the greatest preloaded tunes and should be fine tuned regardless imo.So costs could be the same..give or take a lil on options during the buidl ie..cam..carb/intake/heads etc.
Carbs are more intimidating to see though compared to an lsx intake lol.Pick your poison and run with it.Both make good power in its own way.Both have its own disadvantages to eachother so I wont say one is better than the other in regards to performance.Carbs are still around in racing for a reason.
Carbs are more intimidating to see though compared to an lsx intake lol.Pick your poison and run with it.Both make good power in its own way.Both have its own disadvantages to eachother so I wont say one is better than the other in regards to performance.Carbs are still around in racing for a reason.
#20
Supreme Member
Re: Carbed LS1?
I was wondering has anyone tried a FAST efi system on an LSx?
http://www.fuelairspark.com/ezefi/default.asp
http://www.fuelairspark.com/ezefi/default.asp
#21
Supreme Member
Re: Carbed LS1?
Why use that fast efi if you have a complete ls1 with harness and ecu.Ive heard alot of guys dont like the tune from the fast efi and still needed a dyno tune to be 100%.
#22
Junior Member
Join Date: Dec 2011
Posts: 92
Likes: 0
Received 0 Likes
on
0 Posts
Car: 92 Z28
Engine: 350ci
Transmission: Th350
Axle/Gears: 3.73
Re: Carbed LS1?
spohn mounts, and a set of solid motor side mounts that i made using the 98-02 rubber mounts as a template.
the base plate of my carb is above the hood line. even wthout the 2" super sucker spacer it's still above the hood line. i would budget for a cowl hood if you're planning to run a vic jr intake. i can't speak for the performer rpm though.
the base plate of my carb is above the hood line. even wthout the 2" super sucker spacer it's still above the hood line. i would budget for a cowl hood if you're planning to run a vic jr intake. i can't speak for the performer rpm though.
#24
Supreme Member
iTrader: (11)
Join Date: Sep 1999
Location: NJ
Posts: 4,345
Received 298 Likes
on
234 Posts
Car: 92 Firebird
Engine: 4.8 LR4
Transmission: T56
Axle/Gears: 3.45 9 Bolt
Re: Carbed LS1?
I was wondering has anyone tried a FAST efi system on an LSx?
http://www.fuelairspark.com/ezefi/default.asp
http://www.fuelairspark.com/ezefi/default.asp
Thread
Thread Starter
Forum
Replies
Last Post
dbrochard
Engine/Drivetrain/Suspension Parts for Sale
6
09-19-2015 08:13 PM