70’s-80’s era low rise single plane intakes
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rocketracer380
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Re: 70’s-80’s era low rise single plane intakes
ran an old school torker on a 9.5 comp 355 with darts ran lo 12's in a 3500# car 3.73 gears 200cc heads
Re: 70’s-80’s era low rise single plane intakes
As has already been stated, the old Torkers and Street Dominators worked pretty well on the BB Mopars.
The few intakes I’ve tried where I really thought they just didn’t do anything well were some of the Offy “360” single planes, and the “dual port 360”.
However, the worst experience I had with an intake manifold was an SP2P on a 396 Chevy.
Once you got up much over about 3000-3500 rpm....... as you opened the throttle farther, you could feel the motor making less power.
The bigger the carb you had on it, the worse that phenomenon was.
It was absolutely done before 5K.
I realize it was designed for improved fuel economy........ but, that one was a big step backwards from the stock intake on that motor.
The few intakes I’ve tried where I really thought they just didn’t do anything well were some of the Offy “360” single planes, and the “dual port 360”.
However, the worst experience I had with an intake manifold was an SP2P on a 396 Chevy.
Once you got up much over about 3000-3500 rpm....... as you opened the throttle farther, you could feel the motor making less power.
The bigger the carb you had on it, the worse that phenomenon was.
It was absolutely done before 5K.
I realize it was designed for improved fuel economy........ but, that one was a big step backwards from the stock intake on that motor.
Somewhat handy with a die grinder.
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the rain maker
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Re: 70’s-80’s era low rise single plane intakes
Flat top 355 SBC, camel hump heads, scorpion intake with 2" spacer, a PRC dirt track "105" solid flat tappet, 4.30 gears, ran 7 teen/twenties 1/8th mile depending on weather - approximately 3000lbs. This was an all cast motor(pistons, crank, etc) built with spare parts. I always thought it ran pretty well.
David Hammons
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Daniel Jones
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Re: 70’s-80’s era low rise single plane intakes
> How good or bad is the 351C edelbrock torker for street/strip?
I didn't see anyone respond to your question so I'll take a stab. Dave McLain
and I have dyno tested the Torker on a 351C (iron closed chamber heads) and a
couple of 408C (iron closed chamber 4V and CHI 4V). The Torker was never the
best or the worst and was always outperformed by a Holley Strip Dominator, no
matter what spacer was tested (open, 4 hole or HVH). The Torker worked best
with the 1" HVH. This was the current Torker. There was an earlier one with
a cloverleaf carb pattern. I've seen several different versions of the 351C
Torker/Scorpion intakes:
1. Scorpion - similar to the Torker but with a taller carb pad
2. Tall Torker - identical to the Scorpion but with Torker lettering
3. Early Torker - similar to current Torker but with a cloverleaf plenum
opening
4. Edelbrock A331 - Ford Motorsport version of the Torker with raised ports
that match the A3 high port heads.
5. A331 - Same as #4 but with smaller ports for the Phase 1 1/2 heads
(early version of C302B ports). Both of these intakes were made by
Edelbrock. There was also an A331 intake made by Roush for C302
heads. The Roush intake is a completely different intake from the
Torker based Edelbrocks.
5. I've also heard a rumor of an A331-like raised port version of the
Scorpion for A3 high port heads but never actually seen one.
6. PSE (Pro Stock Engineering) sold a Torker with a spacer and
center plenum divider to enhance low end throttle response. FWIW,
I spoke with a guy running a Torker with a 2 inch spacer and a plenum
divider and he says those mods made a big difference on the street.
The Scorpion is essentially a Torker with a taller plenum but, at least
on a 408C, seems to work better than a Torker with plenum spacer.
Weiand Xcelerator 4V and Holley Strip Dominator. My experience is the
Torker is weak down low and the Weiand 4V is worse (the 2V version of
the Weiand Xcelerator is often a better intake on 4V heads). The Torker
pulled well at high RPM but around town, the Torker would stumble and
just wasn't as smooth.
One of the guys in the Pantera club got pretty serious about testing
intakes and did a bunch of road and drag strip intake testing with his
Pantera. The engine consisted of an Erson hydraulic flat tappet cam
(232 deg duration @ 0.050", 108 LSA, 0.545" lift), Rhoads lifters, 4V
quench heads, flat top pistons, 735 Holley (Ford skirted boosters),
coatings, C&A rings, MSD ignition, wrapped headers and MPG Stinger
exhaust port stuffers. Intakes tested included an Edelbrock Torker,
Weiand Xcelerator 4V, Offy Port-o-Sonic 4V, Holley Strip Dominator,
along with a couple dual planes. Tim spent a lot of time optimizing the
carb for each intake. The Holley Strip Dominator was 4 tenths quicker in
the 1/4 mile than the Torker and had, by far, the best driveability (smooth
with no flat spots) of the single planes. It rivaled the dual planes down
low, as far as driveability was concerned, and by 3000 RPM was pulling away.
He could never get the Torker to smooth out at lower RPM, despite a lot of
tuning time.
Several other Pantera club members have tested 4V intakes, as well.
One test was a road course test between a Torker, a Weiand Xcelerator 4V,
and an Edelbrock Performer 4V. In a Pantera (3100 lbs, 4.22:1 final drive,
5 speed) with open chamber 4V heads, domed TRW pistons, 230-something cam,
the Performer was faster around the course because the Torker was so dead
below 4000 RPM. The Weiand 4V single plane was worse. I offered up my
spare Strip Dominator but it didn't make it in time to be included in the
test.
Dan Jones
I didn't see anyone respond to your question so I'll take a stab. Dave McLain
and I have dyno tested the Torker on a 351C (iron closed chamber heads) and a
couple of 408C (iron closed chamber 4V and CHI 4V). The Torker was never the
best or the worst and was always outperformed by a Holley Strip Dominator, no
matter what spacer was tested (open, 4 hole or HVH). The Torker worked best
with the 1" HVH. This was the current Torker. There was an earlier one with
a cloverleaf carb pattern. I've seen several different versions of the 351C
Torker/Scorpion intakes:
1. Scorpion - similar to the Torker but with a taller carb pad
2. Tall Torker - identical to the Scorpion but with Torker lettering
3. Early Torker - similar to current Torker but with a cloverleaf plenum
opening
4. Edelbrock A331 - Ford Motorsport version of the Torker with raised ports
that match the A3 high port heads.
5. A331 - Same as #4 but with smaller ports for the Phase 1 1/2 heads
(early version of C302B ports). Both of these intakes were made by
Edelbrock. There was also an A331 intake made by Roush for C302
heads. The Roush intake is a completely different intake from the
Torker based Edelbrocks.
5. I've also heard a rumor of an A331-like raised port version of the
Scorpion for A3 high port heads but never actually seen one.
6. PSE (Pro Stock Engineering) sold a Torker with a spacer and
center plenum divider to enhance low end throttle response. FWIW,
I spoke with a guy running a Torker with a 2 inch spacer and a plenum
divider and he says those mods made a big difference on the street.
The Scorpion is essentially a Torker with a taller plenum but, at least
on a 408C, seems to work better than a Torker with plenum spacer.
Weiand Xcelerator 4V and Holley Strip Dominator. My experience is the
Torker is weak down low and the Weiand 4V is worse (the 2V version of
the Weiand Xcelerator is often a better intake on 4V heads). The Torker
pulled well at high RPM but around town, the Torker would stumble and
just wasn't as smooth.
One of the guys in the Pantera club got pretty serious about testing
intakes and did a bunch of road and drag strip intake testing with his
Pantera. The engine consisted of an Erson hydraulic flat tappet cam
(232 deg duration @ 0.050", 108 LSA, 0.545" lift), Rhoads lifters, 4V
quench heads, flat top pistons, 735 Holley (Ford skirted boosters),
coatings, C&A rings, MSD ignition, wrapped headers and MPG Stinger
exhaust port stuffers. Intakes tested included an Edelbrock Torker,
Weiand Xcelerator 4V, Offy Port-o-Sonic 4V, Holley Strip Dominator,
along with a couple dual planes. Tim spent a lot of time optimizing the
carb for each intake. The Holley Strip Dominator was 4 tenths quicker in
the 1/4 mile than the Torker and had, by far, the best driveability (smooth
with no flat spots) of the single planes. It rivaled the dual planes down
low, as far as driveability was concerned, and by 3000 RPM was pulling away.
He could never get the Torker to smooth out at lower RPM, despite a lot of
tuning time.
Several other Pantera club members have tested 4V intakes, as well.
One test was a road course test between a Torker, a Weiand Xcelerator 4V,
and an Edelbrock Performer 4V. In a Pantera (3100 lbs, 4.22:1 final drive,
5 speed) with open chamber 4V heads, domed TRW pistons, 230-something cam,
the Performer was faster around the course because the Torker was so dead
below 4000 RPM. The Weiand 4V single plane was worse. I offered up my
spare Strip Dominator but it didn't make it in time to be included in the
test.
Dan Jones
Re: 70’s-80’s era low rise single plane intakes
Ran a Torker on a 67 rs 4 spd car. 280cam, too tall a gear It was decent overall, sure a dual plane woulda been better
Neighbor in the 70s had a 68 AMX with a pretty stout 390 ran bottom 11s same piece.
Impressive running car for its day.
Neighbor in the 70s had a 68 AMX with a pretty stout 390 ran bottom 11s same piece.
Impressive running car for its day.