carbed LS1 motors
why not? if u don`t mind 
11-21-2005, 06:52 PM
#5
This is interesting. I mean a carb set up would be a nice trick in an engine like this. If asked old school guys (like my old man) they would tell you how a finely tuned carb would beat or equal the best EFI.
Another point in adding a carb would be looks. I mean I love my LS1 but its not the prettiest engine around.
Any other opinions?
Another point in adding a carb would be looks. I mean I love my LS1 but its not the prettiest engine around.
Any other opinions?
11-21-2005, 06:54 PM
#6
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Originally Posted by orangeapeel
well, you will end up spending more money on ignition peices as well. What is wrong with EFI? It is probably easier to tune and maintain....less moving parts IMO.
MSD would not mind if you switch to carb setup.
MSD would not mind if you switch to carb setup.
thanks dude
11-21-2005, 08:28 PM
#7
If you drive the car on a regular basis I would not recommend going to a carb. This is coming from someone who has driven a carbed vehicle on a daily basis. I don't see you running something with an electric choke and small cfm rating with the large cam and good flowing heads so cold starts(manual choke) are gonna be a bitch.
The only way a carb will come close to a well tuned EFI setup is at wide open throttle.IMO If you're afraid of exceeding the limits of a "factory based intake"(LS6,FAST), then get a single plane carb intake for use with EFI. It will still look killer and you won't have leaning problems of #7 and #8 common with the "stock" type intakes.
The only way a carb will come close to a well tuned EFI setup is at wide open throttle.IMO If you're afraid of exceeding the limits of a "factory based intake"(LS6,FAST), then get a single plane carb intake for use with EFI. It will still look killer and you won't have leaning problems of #7 and #8 common with the "stock" type intakes.
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11-21-2005, 08:44 PM
#8
In a stock EFI system like your 98 I'd go with the fast 90. The EFI vs. carb debate can go round and round, but in the end the EFI system will be more efficient and easier to keep in tune. In your case you already have EFI and unless you are trying for a drag only car I'd stick with it.
I on the other hand am installing the carbed setup on my Monte. The main reason being the car was already setup for a high performance carburetor setup, including a pretty pricey carb.
I on the other hand am installing the carbed setup on my Monte. The main reason being the car was already setup for a high performance carburetor setup, including a pretty pricey carb.
11-22-2005, 04:06 PM
#10
Launching!
isnt that like putting piston-prop engine to your LEARJET!!!!!
"Improving?"..... hmmmm HARDLY
"Improving?"..... hmmmm HARDLY
Last edited by bulletLS1; 11-22-2005 at 04:13 PM. Reason: more ideas
11-23-2005, 05:13 AM
#11
Personally you could get a bad *** setup with FAST or whatever and some other goodies that will improve your overall performance instead of giving you a different look and putting you back to almost basically where you started at square one as far as power goes. (wow that was a heck of a sentence!)
11-23-2005, 08:27 AM
#13
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Originally Posted by chaman
This is interesting. I mean a carb set up would be a nice trick in an engine like this. If asked old school guys (like my old man) they would tell you how a finely tuned carb would beat or equal the best EFI.
Another point in adding a carb would be looks. I mean I love my LS1 but its not the prettiest engine around.
Any other opinions?
Another point in adding a carb would be looks. I mean I love my LS1 but its not the prettiest engine around.
Any other opinions?
the reason why people can buy hot cams nowadays and get their cars to idle decent is EFI. take a similar cam, and try to get it run right with a carb? Good luck.
11-23-2005, 09:02 AM
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In my opinion anything that uses a real intake (single plane 4150 flange manifold) will be superior for seaking max power. As far as driveability the fast, ls6/ls1/ls2 manfiolds have the edge there for sure. How bout a single plane manifold with efi
, that's the best of both, but still will suffer a little as far as driveability compared to the ls6 style.
, that's the best of both, but still will suffer a little as far as driveability compared to the ls6 style.
11-23-2005, 09:20 AM
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Originally Posted by DAPSUPRSLO
In my opinion anything that uses a real intake (single plane 4150 flange manifold) will be superior for seaking max power. As far as driveability the fast, ls6/ls1/ls2 manfiolds have the edge there for sure. How bout a single plane manifold with efi, that's the best of both, but still will suffer a little as far as driveability compared to the ls6 style.
, that's the best of both, but still will suffer a little as far as driveability compared to the ls6 style.
so i don`t care about anything but the best intake
do u have pics for what r u talking about? "single plane manifold with efi"
11-23-2005, 09:25 AM
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Originally Posted by Q8CamaRo
man the car is just a weekend toy
so i don`t care about anything but the best intake
do u have pics for what r u talking about? "single plane manifold with efi"
so i don`t care about anything but the best intake
do u have pics for what r u talking about? "single plane manifold with efi"
This is a member's car which happesn to run ver very strong, all though he is max effort.
https://ls1tech.com/forums/drag-racing-results/410670-na-408-9-27-145-mph.html
I'll have a few pictures of my setup too once HPE gets things wrapped up for me. My intake may be just a hair bigger then the one you see here, he he
11-23-2005, 09:38 AM
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If you just look at a single plane (GMPP or
whatever) intake, it's pretty obvious that
it is going to flow better (big, straight,
short runners) than the stock style intakes.
Whether that will make more power, and
where, depends. A resonating style intake
with long runners acts in the same style as
long tube headers. You might see less mid-
band torque out of the single plane. You will
probably see inferior low speed atomization
and so on. If you have the cam and heads to
put your torque peak at 6000RPM, go for it.
A 90mm inlet hole might have more area than
four "little" Dominator or even smaller square-
bore throats. You'd have to measure them up
and calculate it. But I think it's the runners and
the plenum-runner turn that limit per-cylinder
air draw.
In the CHP article I read, the carb style (with
carb and HEI) made more power, 500HP-ish
dyno, than the same motor EFI/LS6.
If I were putting (say) a 6.0 truck motor and
6-speed into a resto rod, you bet your *** I'd
go carb and HEI. Set it, and forget it. Single
wire ignition, no closed loop nuthin'. I have
been driving carbureted beaters for over 25
years and drivability, schmivability. Get a cable
choke kit from DiscoAutoPartz if you live where
it's cold. Borrow a wideband for jet selection
and maybe some idle / transition circuit fiddling.
whatever) intake, it's pretty obvious that
it is going to flow better (big, straight,
short runners) than the stock style intakes.
Whether that will make more power, and
where, depends. A resonating style intake
with long runners acts in the same style as
long tube headers. You might see less mid-
band torque out of the single plane. You will
probably see inferior low speed atomization
and so on. If you have the cam and heads to
put your torque peak at 6000RPM, go for it.
A 90mm inlet hole might have more area than
four "little" Dominator or even smaller square-
bore throats. You'd have to measure them up
and calculate it. But I think it's the runners and
the plenum-runner turn that limit per-cylinder
air draw.
In the CHP article I read, the carb style (with
carb and HEI) made more power, 500HP-ish
dyno, than the same motor EFI/LS6.
If I were putting (say) a 6.0 truck motor and
6-speed into a resto rod, you bet your *** I'd
go carb and HEI. Set it, and forget it. Single
wire ignition, no closed loop nuthin'. I have
been driving carbureted beaters for over 25
years and drivability, schmivability. Get a cable
choke kit from DiscoAutoPartz if you live where
it's cold. Borrow a wideband for jet selection
and maybe some idle / transition circuit fiddling.
11-23-2005, 09:48 AM
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http://www.compcams.com/community/pr...69camaro-1997/
There's a good example of how the single plain intake will act on a more street oriented setup. Note that this car only has a 230/236 cam on a 112 and still makes crazy horsepower. Obviously the sb2 heads are suprerior to most gen 3 stuff but it's a good example of how the torque peak is high as Jimmyblue indicated. Further, like Jimmyblue indicated you may luz some power, and probably will, in the under 6000 range on just about anything other then a big cubic inch or high rpm motor based on the lack of resonance tuning in those rpms with one of these short runner intakes.
There's a good example of how the single plain intake will act on a more street oriented setup. Note that this car only has a 230/236 cam on a 112 and still makes crazy horsepower. Obviously the sb2 heads are suprerior to most gen 3 stuff but it's a good example of how the torque peak is high as Jimmyblue indicated. Further, like Jimmyblue indicated you may luz some power, and probably will, in the under 6000 range on just about anything other then a big cubic inch or high rpm motor based on the lack of resonance tuning in those rpms with one of these short runner intakes.
11-23-2005, 09:53 AM
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Originally Posted by Q8CamaRo
from where can i get the single plane mainfold
and wich carbs will fit
and wich carbs will fit