408 w/ vic jr. dyno #'s after T/B change!
12-09-2008, 10:52 PM
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408 w/ vic jr. dyno #'s after T/B change! I changed from a 90deg elbow/ 90mm throttle body to a 4500 Fast throttle body and went to dyno to see the difference. Keep in mind this is in a truck. Before it made 512hp through th400/ 9 inch . This time it made 562hp, not too bad for a truck. It picked up a little on spray also. Not to bad for a 4 year old motor. Motor spec: iron block 408 11.5cr, All pro LS1 heads, Futral S/R cam, Vic Jr intake.
...do you have any work done to the all pros? 
12-10-2008, 08:06 AM
#6
Intake elbows and 90mm TBs suck on single planes. Nice gains. Thanks for posting! 
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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
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
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12-10-2008, 09:50 PM
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i dont think you can beat the 4 barrel TB, there is no restriction with that setup. i was going to run that TB but i wanted to be able to street drive the car, and finding a air filter was an issue and also driveability was going to be sacrificed.
12-10-2008, 10:34 PM
#14
Air filter is easy, put a carb style hat on it and run 3.5 inch tube to a MAF then to an air filter. Or in my case to my WS6 ram air air filter setup.
See here
https://ls1tech.com/forums/drag-raci...car-motor.html
Last edited by FASTFATBOY; 12-10-2008 at 10:42 PM.
12-14-2008, 01:08 PM
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The 4 hole TB has the best driveability over any other TB.
Air filter is easy, put a carb style hat on it and run 3.5 inch tube to a MAF then to an air filter. Or in my case to my WS6 ram air air filter setup.
See here
https://ls1tech.com/forums/drag-raci...car-motor.html
Air filter is easy, put a carb style hat on it and run 3.5 inch tube to a MAF then to an air filter. Or in my case to my WS6 ram air air filter setup.
See here
https://ls1tech.com/forums/drag-raci...car-motor.html
I may swap to a 4 barrel style TB after the first of the year. A few of the vendors told me that for a NA setup it's the only way to go! They told me that i should pick up a solid 20rwhp over my edelbrock elbow. Not disclaiming some of the gains but none of these shops are seeing the gains that are being claimed?? Could be due to different setups or are some people using the ultra low style elbows?
Also what is the height comparrison at the top of the 4 barrel style TB compared to the highest point of the elbow? I have a sunoco hood so i think the 4 barrel style might set lower than my low profile edelbrock elbow?
12-14-2008, 01:16 PM
#17
Where do you find the carb hat and tubing? I looked on summit and got nothing in the search for it.
I may swap to a 4 barrel style TB after the first of the year. A few of the vendors told me that for a NA setup it's the only way to go! They told me that i should pick up a solid 20rwhp over my edelbrock elbow. Not disclaiming some of the gains but none of these shops are seeing the gains that are being claimed?? Could be due to different setups or are some people using the ultra low style elbows?
Also what is the height comparrison at the top of the 4 barrel style TB compared to the highest point of the elbow? I have a sunoco hood so i think the 4 barrel style might set lower than my low profile edelbrock elbow?
I may swap to a 4 barrel style TB after the first of the year. A few of the vendors told me that for a NA setup it's the only way to go! They told me that i should pick up a solid 20rwhp over my edelbrock elbow. Not disclaiming some of the gains but none of these shops are seeing the gains that are being claimed?? Could be due to different setups or are some people using the ultra low style elbows?
Also what is the height comparrison at the top of the 4 barrel style TB compared to the highest point of the elbow? I have a sunoco hood so i think the 4 barrel style might set lower than my low profile edelbrock elbow?
Tell them you want a hat for a blow through carb with a turbo or supercharger.
I would use aluminum tubing. If you have an LS1 use a rubber 45* to connect to your lid on one end then put the MAF in the other end. Get a 45* aluminum bend with a short radius and long feet along with some rubber couplers. Hook it up.
Or use 2 45* rubber couplers like I did, would look similar to my setup.
Should fit easily under a Sunoco hood.
Last edited by FASTFATBOY; 12-14-2008 at 01:36 PM.
12-14-2008, 01:26 PM
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user dlove went from from stock l76 intake and 92mm tb to this and didnt gain anything in the 1/4! Ran same time 
Last edited by SIC LSX; 02-24-2009 at 01:50 AM.
12-14-2008, 02:04 PM
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They told me that i should pick up a solid 20rwhp over my edelbrock elbow. Not disclaiming some of the gains but none of these shops are seeing the gains that are being claimed?? Could be due to different setups or are some people using the ultra low style elbows?
to this elbow and gained 90rwhp. Nothing else was changed. same dyno and roughly 2 weeks apart.
