Bee Jay

I'm new here, and this is my first post. I've been lurking a while, but I gotta ask a question.
I plan to put a Holley throttle body fuel injection on top of my much modified '79 L-82. (Ported and polished Airflow research 195cc heads, 224/234 degree duration cam, headers, duals w/crossover, Brad Urban Quadrajet, and 700R4 with Turbo Regal converter) I want to go single plane, but the Torker will fit better under the hood than the Victor Jr. The Victor is know for making horsepower without giving up too much torque, but what about the Torker? Are there any Torker II tests or magazine links?
Bee Jay
'79 Vette

Russ Bellinis

Efi is much more forgiving than a carb. A carb works by airflow, so if a manifold is not just right for the street, too big for instance, the airflow through the carb slows down and metering goes off. Efi doesn't care, it delivers the amount of fuel the engine requires based on what airflow you have. In the factory oem systems you have an air sensing device like a mass airflow sensor or a manifold absolute pressure sensor on the intake and an oxygen sensor in the exhaust. The ecu compares the two and adjusts fuel delivery accordingly. That is a bit over simplified, they will also have a throttle position sensor to tell the ecu what your throttle opening is. I'm not familier with the aftermarket systems, but they have probably got something similar built in to the electronics to tell the ecu when to richen or lean the mixture. I think the Holley system has a maf, but I'm not sure since they aren't smog legal here in Cali. A case in point is a friend in the local f-body club with an 89 Pontiac GTA. He put a large base and siamesed runners on his tpi, but he didn't stop there. He opened up the dividers between the runner tubes making the runners part of the plenum, then ported the plenum. In effect he shortened his tuned length from 27" to 10". He should have lost low end torque, but when he put the car on the dyno, he picked up a little torque from 1500 rpm up, only now he makes over 335 hp at the rear wheels and has a motor that runs strong to 6000 rpm instead of dying at 4500.

LFZ

I think the TorkerII is just kinda old...A victor Jr is a better intake over the Torker any day. Whats the rest of your cam specs? RPM range??

Bee Jay

Right now it has a Summit 1105 w/1.6 ratio rockers. Right now with the 1105 I shift at 6500rpm and do 4.64 0to60mph, and 13.2 @ 108mph 1/4mile using my g-tech. My winter project will be to convert to a hydraulic roller setup. I was gonna do the LT4 Hot Cam conversion, but I talked to the Comp Cams tech at SEMA this week, and he talked me into a Marine Roller that is 224/234 duration @ .050, 112 lobe separation, and about .530 lift with 1.6. It's slightly hotter than the GM LT4 "Hot Cam". I drive it on the street at most once to twice a week. I bought the car new in 1979, and relieves stress. With all the suspension and engine mods, the body has remained stock. My interest in the Torker II is to keep my stock hood.
Bee Jay

LFZ

you should be able to fit a vic jr under a stock hood of a 79 with no problems.

comp

Russ Bellinis

If you are buying a new manifold and not going to use the car in cold weather where you would need a heated intake manifold, why not the air gap?

Guru_4_hire

I dont like the looks of the torker 2 for gasket sealing on a squarebore carb.

Bee Jay

I've stuck with dual plane as long as I've been carbed, but I am contemplating a move to the Holley Commander throttle body fuel injection system. When I do that, it will no longer be crucial to stick with a dual plane manifold. The Torker II and Victor Jr make more power above 6000 rpm, and I would like to take advantage of that. I would just like to use the Torker II if I'm not givng up too much power to the Victor Jr, because it will give me more hood clearance. My current manifold is as good as a Performer RPM I believe. I just want to know how the Victor Jr. compares to the Torker II.
Bee Jay

tsw71

Contrary to popular belief, a single plane used on anything beyind a mild motor will make good torque across the entire rpm range. As for the torkerII, the ports are significantly smaller than just about every manifold made. It's a decent intake, but I picked up over 10rwhp by switching from the torkerII to a Weiand Team G 7525. I should also mention that my torque curve is extremely flat with almost no difference from 2000-5000rpm. Btw, the Victor jr is taller than both and has ports on the small side similar to the torkerII.

StickShiftCorvette

I have a fairly wild small block (Brodix -8 pro heads/2.055 intakes, Comp Cams 294S, 10.67:1).

I had a over 24% (to 320 RWHP) power increase (measured with a G-Tech) going from a flowed Torker II to a Victor Jr (CNC ported, hand matched to the CNC porting). With my combo the Torker II was really restricting the power. To fit under a stock '69 SB hood I did have to mill .25" off the Victor Jr although if I had lived without a carb insulator (Holley 108-70) it would have fit using the LT-1 drop base air cleaner.

Guru_4_hire

I am gonna get this one.

http://www.holley.com/products.asp?product=7547-1

I have to put a 4" tall bonnet on top of my carb, so hood clearence is a bigger issue for me.

vettenoir

For what it's worth...

I have a Holley Commander 950 TBI and switched FROM a Torker II TO a Performer RPM. I also switched from Iron Eagle to Pro I heads. I rev to about 6500rpm.

I picked up .5 sec in the quarter mile (13.3 - 12.8) without really fully dialing in the new fuel map yet. I can't say how much of the gain was from the manifold, and how much was from the heads though...

In general I was pretty amazed about 2 things:
1. How much low end torque I actually had with the Torker II
2. How much the motor liked to rev with the Performer RPM.

With either manifold I really have to feather the throttle from the starting line with street tires, but a well prepared, sticky track.

Bee Jay

Vettenoir, it sounds like you've done exactly what I plant to do. The roller cam conversion is first, and then the fi with single plane. I want to get into the 12s while keeping it streetable. What cam are you running? Tell me more about your car. email me at bernard.jones@verizon.net
Bee Jay

vettenoir

Email with specs sent