I'd like to give a "Shout-Out" to those with JBA's
06-30-2005, 11:54 PM
#1
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I'd like to give a "Shout-Out" to those with JBA's Max Power 343.9
Max Torque 344.2
I'm quite satisfied with my results!!!
Max Torque 344.2
I'm quite satisfied with my results!!!
Last edited by 1LE 99; 07-01-2005 at 07:13 PM.
07-01-2005, 11:31 AM
#4
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obiously, congrats man.. oh and what exactly does the "flange mod" entail.. when i got mine i just threw them on, but going to lt's and thought maybe should do this for the guy who's buying them
07-01-2005, 03:28 PM
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When you pull the headers off, you'll need to modify the passenger side collector flange to 2.375" Dia. (that's the max you can go without hitting the ID of the collector pipe). Just make it the same size as the drivers side flange (2.375" Dia.). I used a Dremel with a carbide tip (#9903) and a cutting guide.
Last edited by 1LE 99; 07-01-2005 at 03:46 PM.
07-01-2005, 03:56 PM
#6
Nice numbers. Do you know how much of a gain that is over your manifolds?
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
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07-01-2005, 04:33 PM
#10
What about the new 1 3/4 BBK's? Has anyone given these any thought? I would think you might gain a couple more hp over the JBA's. I've been tempted the get these, but I keep going back and forth trying to decide whether or not I want to spend my money on shorties. 
07-01-2005, 04:49 PM
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Redneck Z,
The JBA / BBK's are designed to mate up with the stock Y-Pipe which has a smaller ID on the passenger side. It's just a good idea to open up the flange if you're adding an aftermarket Y-Pipe such as the RT Y-Pipe which has a 2.5" ID. If you are using the stock y-pipe don't even bother with the flange mod.
The JBA / BBK's are designed to mate up with the stock Y-Pipe which has a smaller ID on the passenger side. It's just a good idea to open up the flange if you're adding an aftermarket Y-Pipe such as the RT Y-Pipe which has a 2.5" ID. If you are using the stock y-pipe don't even bother with the flange mod.
07-01-2005, 04:53 PM
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JS,
I'm not sure what the GTO flange(s) looks like. It may not even be an issue. What you want to do is match the collector flange opening to the y-pipe opening. Check the driver and passenger side in your case.
I'm not sure what the GTO flange(s) looks like. It may not even be an issue. What you want to do is match the collector flange opening to the y-pipe opening. Check the driver and passenger side in your case.
Last edited by 1LE 99; 07-01-2005 at 05:19 PM.
Wow $175, how can you go wrong? If I found a deal like that, I'd get them in a heart beat. Were they the ceramic, titanium or chrome/nickel ones?
07-01-2005, 05:04 PM
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Patrick G,
I'm guessing I picked up somewhere around 15-20HP with the JBA's and RT Y-pipe.
I dynoed 311 rwhp before the Headers, Y-pipe, LS6 Intake and ported TB. I'm sure I'll get flamed for the HP claims but I don't care!!!
I'm guessing I picked up somewhere around 15-20HP with the JBA's and RT Y-pipe.
I dynoed 311 rwhp before the Headers, Y-pipe, LS6 Intake and ported TB. I'm sure I'll get flamed for the HP claims but I don't care!!!
07-01-2005, 05:16 PM
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RedneckZ,
They are ceramic. They did, however, have a few pinholes around one of the welds but I took them down to JBA in SD and they covered them under warranty.
They are ceramic. They did, however, have a few pinholes around one of the welds but I took them down to JBA in SD and they covered them under warranty.
07-07-2005, 03:30 AM
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Originally Posted by john shea
How come most everyone here says little or no gain
with shorties and you say you got good gains?
with shorties and you say you got good gains?
The #'s in this thread are what people often get with LT's.. who knows.. maybe he's got a freak..