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.
__________________ Larry @ Speed Inc. 97 Z/28 396, LT1 H/I, LE H/R, FLT4 w/SS4000, S60, UMI, BMR, Nitrous Outlet 10.66@126 NA 1.39 60ft 10.05@132 / 150 SHOT GM High Tech cover car April 2009 Follow us on Facebook for Project updates and Exclusive Specials http://www.facebook.com/home.php?ref...4984839?ref=nf www.speedinc.com
Intake elbows and 90mm TBs suck on single planes. Nice gains. Thanks for posting!
__________________ 2009 Pontiac G8 GT Vararam, EFI Live tuned, Cruising in 4 cylinder mode, hauling on 8. 2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAEMods list, Idle Sound Clip, WOT video, 183.092mph video 2007 Suburban 5.3L K&N FIPK, EFI Live tuned for max power and fuel economy. 2007 Jeep Grand Cherokee SRT8 sold: 12.12@112.70mph, 150.942mph Texas Mile. LS1,LS2,LS3,LS7 Custom Camshaft Specialist For custom camshaft help press here. Custom LSX drivability & dyno tuning by appointment only.
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.
__________________ 93 Mustang LS powered in progress.
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.
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.
i really like the idea of the 4 barrel carb TB and carb hat going to the factory style MAF or airfilter. should easily clear a stock cowl and hood even with a plate kit under it
__________________ - John
1999 Pontiac TA - 404" LQ9|N2O|TH400|Radials|3600 lbs|Pump gas street car
2003 GMC Yukon 4wd - Baby Car Seat
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?
__________________ www.fquick.com/StreetStalker
Forged 370 6.0L/2.5 LS6 heads/Comp.Cam/Victor JR intake/4150 TB/Moser 9"/Spohn and BMR suspension/Yank converter
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?
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.
__________________ 94 Z, Cahall 4L60E, solid roller 383 LT1, 3600lbs. 10.58@126, 1.43 60ft, pumpgas and radials. ALL MOTOR STREETCAR!
Last edited by FASTFATBOY; 12-14-2008 at 02:36 PM..
user dlove went from from stock l76 intake and 92mm tb to this and didnt gain anything in the 1/4! Ran same time
__________________ 99 m6 Z28
11 sec club & cam only Tuned in SD by Brian shell. LS7 clutch, Tsp 231/237 cam 112LSA,Full boltons, UMI lca's, relocation brackets, Qa1's up front and DMS out back. Also kown as DansRedZ28
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?
I went from this edlebrock elbow
to this elbow and gained 90rwhp. Nothing else was changed. same dyno and roughly 2 weeks apart.
__________________ 93 Mustang LS powered in progress.
408 w/ vic jr. dyno #'s after T/B change! 
...do you have any work done to the all pros?
