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Discussion Starter · #1 ·
grey95buick shoehorned it on the ls1tech forum. Just wondering if the gods will permit me.
 

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Nope. I tried it but it will not fit without cutting the cowl.
 

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Discussion Starter · #6 ·
k, thx
 

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Yes, is this going on an LS1/2/6 or LQ4/9 motor? Than LS6 intake is going to be what you need. If you're doing this on one of the Gen IV motors like an L76 or L76, an LS6 intake won't fit and you'll need the 'car' L76 intake.
 

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possible yes!!! worth it.......NO!

i originally made it happen to run all truck acc. didn't want to space out water pump to clear car intake.

u would need to cut the cowl...as well as a part of the inner frame of the inner hood.



if u look closely in the pic u can see what had to be cut under the hood.

good luck.

JP
 

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Which truck intake was tested? The GenIII (3-bolt TB) or the GenIV (4-bolt TB)? The LS2 truck intake flowed as well as the stock LS2 car intake.. that said, the LS6 intake outflows the LS2 car intake.. Just curious.
That was the Gen III truck intake. The LS1 and LS2 "car" intakes flow the same. Ported though, the LS2 intake actually flows somewhat decently. For the price of porting and a LS2 manifold, you could have already had an LS6 on it.
 

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Victor Jr. wins??

Funny on how the single plane carb style Victor Jr. out flows all of the OEM intakes !!!

Just noticing. Maybe just maybe a Victor Jr. with 90mm TM and 105* (or 90*)elbow is the way to go.
 

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Funny on how the single plane carb style Victor Jr. out flows all of the OEM intakes !!!

Just noticing. Maybe just maybe a Victor Jr. with 90mm TM and 105* (or 90*)elbow is the way to go.
If you want peak power great, but the carb intake will run 15-20 ft-# (or more) in the low-midrange RPM, peak torque will be lower. In fact the single plane carbed intake won't really start to make more power until 6100-6500 RPM, if you wan to run there all day great but if you street the car, it's a big tradeoff. Needs more plenum and runner length.
 

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Just my 2 cents.

Those carb's LS1's are not the greatest thing since sliced bread far as the pocket book goes.
Do the math and look at the bottom line becasue you have to buy a MSD ignition controller, aftermarket trans controller expensive carb and intake. far as the truck engine, it's cheap to get a LS1 intake used for $50, top idler relocate bracket for $85 and you are good to go. Same PCM, same file, integrated trans controller. TH350 and 700r4 require some special fabrication just to hook up the kickdown cable to the LS1 throttle body.
 

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Discussion Starter · #14 ·
Thx greychev. Exactly what I was looking for.
 

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If you want peak power great, but the carb intake will run 15-20 ft-# (or more) in the low-midrange RPM, peak torque will be lower. In fact the single plane carbed intake won't really start to make more power until 6100-6500 RPM, if you wan to run there all day great but if you street the car, it's a big tradeoff. Needs more plenum and runner length.
Just my 2 cents.

Those carb's LS1's are not the greatest thing since sliced bread far as the pocket book goes.
Do the math and look at the bottom line becasue you have to buy a MSD ignition controller, aftermarket trans controller expensive carb and intake. far as the truck engine, it's cheap to get a LS1 intake used for $50, top idler relocate bracket for $85 and you are good to go. Same PCM, same file, integrated trans controller. TH350 and 700r4 require some special fabrication just to hook up the kickdown cable to the LS1 throttle body.
Guys I was referring to the EFI version of the Victor Jr. intake manifold not the full carburator version. I agree why give up OEM EFI to make it simple but in the end you just make it more complicated and get the worse of both worlds.

If you look on other forums dealing with EFI performance there are quite a few racers who run converted single plane carb intakes with spacers and 90* (or even 105*) elbows with the OEM type TB mounted on the front. So much so that most of the carb intake makers now offer full port EFI versions with the bungs already welded in.

I wish there was more interest alternative intake manifolds in both th LTx and B-Body Community. We could definetly use a much longer intake runner to get more low and midrange torque out of motors. Sorry 3" from plenum to intake port is NOT the way to go to produce decent torque numbers. I think the LT1 produces a nice flat torque curve and good torque numbers inspite of itself and its intake not because of it.
 

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That was the Gen III truck intake. The LS1 and LS2 "car" intakes flow the same. Ported though, the LS2 intake actually flows somewhat decently. For the price of porting and a LS2 manifold, you could have already had an LS6 on it.

Does a stock ls6 intake flow better than a ported ls2 intake?
 

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Does a stock ls6 intake flow better than a ported ls2 intake?
Something to look at before purchasing one
http://www.ls1tech.com/forums/10838535-post1.html

From what I understand, the PORTED LS2 will flow within 10hp of a STOCK FAST 90/90. You have to use a quality throttle body to get the most out of it though (Nick Williams, Etc.). I'll see if i can dig up some Dyno Charts.

Found it!
http://www.ls1tech.com/forums/6797126-post3.html
The difference is larger than I initially thought.
 

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If its a race car a ported victor jr with a 4 barrel tb is the way to go. Cuz the elbow chokes the 2 front cylinders and people can see up to 50rwhp from changing from a elbow with a 90mm tb to a 4 barrel. And I am now going to go carb with my ls1swap.
 

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^^^ I agree. You will lose some low end torque with the carb intake, but it makes up for it on the high end. I wouldn't recommend it for a street app unless you had a cam to compliment it.

i'm not too sure about it choking off the front 2 cylinders though. I think it would all be dependent on the bend radius of the elbow. The smoother the bend, the smoother the airflow. I've seen people gain 50rwhp from changing from a low profile edelbrock elbow to a intakeelbows.com elbow.
 

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True^^ but that's why u put a high stall!!!! Lol. And ur right. There's a thread on tech in the dyno section pretty good info in there. And good thing I'm going to start working probably this week. Cuz its almost complete. Just needs the final details.
 
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