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Victor 340 vs. RPM Air Gap on a 408
#726544
06/17/10 12:07 PM
06/17/10 12:07 PM
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Joined: Jan 2008
Posts: 411
Big Island ,VA
JC Childress
OP
mopar
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OP
mopar
Joined: Jan 2008
Posts: 411
Big Island ,VA
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Anyone have any comparisons ? I know the Super Victor doesnt do as well, but I'm talking about the ole Victor 340. This would be on a street 408, with RHS heads , hydraulic cam engine.
Thanks for the replies.
J.C. Childress
(434) 665-9541
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Re: Victor 340 vs. RPM Air Gap on a 408
[Re: JC Childress]
#726545
06/17/10 02:52 PM
06/17/10 02:52 PM
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Joined: Dec 2006
Posts: 1,178
Indy
FlyFish
super stock
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super stock
Joined: Dec 2006
Posts: 1,178
Indy
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I will have a comparison in ~30 days. I currently run an Airgap, and I’m buying a Victor next week. My next race is July 17th….so, it might be hard to make a good comparison if the air is hot and humid. I’ll post the results when I run it. I’m not much help now, but here’s a 
67 Barracuda street car, 408, e85, 1.38 60', 6.44 @105.9 in the 1/8 mile, 10.19 @130.5 in the 1/4...so far....
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Re: Victor 340 vs. RPM Air Gap on a 408
[Re: FlyFish]
#726546
06/17/10 03:41 PM
06/17/10 03:41 PM
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Joined: Jan 2008
Posts: 411
Big Island ,VA
JC Childress
OP
mopar
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OP
mopar
Joined: Jan 2008
Posts: 411
Big Island ,VA
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Whats your current combo , as far as heads, comp ratio and camshaft ?
Thanks for the reply
J.C. Childress
(434) 665-9541
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Re: Victor 340 vs. RPM Air Gap on a 408
[Re: JC Childress]
#726547
06/17/10 03:57 PM
06/17/10 03:57 PM
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Joined: Dec 2006
Posts: 1,178
Indy
FlyFish
super stock
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super stock
Joined: Dec 2006
Posts: 1,178
Indy
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410, ported eddys, 10.8:1 comp, pump gas, small solid roller (248/254, .576/.582), Air-gap, 750dp, 8” PTC vert, 4.10 gear.
67 Barracuda street car, 408, e85, 1.38 60', 6.44 @105.9 in the 1/8 mile, 10.19 @130.5 in the 1/4...so far....
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Re: Victor 340 vs. RPM Air Gap on a 408
[Re: Crizila]
#726551
06/18/10 07:06 AM
06/18/10 07:06 AM
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Joined: May 2004
Posts: 12,386
Taxes & Virus's R-US, NY
Dragula
I Live Here
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I Live Here
Joined: May 2004
Posts: 12,386
Taxes & Virus's R-US, NY
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We also had the older Victor on our 416 pump gas bracket motor, also with a .560" cam, and that worked super well with awesome bottom end and really great mid range. The upper end wasn't so good, but we had nearly stock heads on it, and it would fall off in the upper ranges. Based on my experience with the AG on my 360, the AG would be a restriction on the larger motors.
Last edited by Dragula; 06/18/10 07:07 AM.
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Re: Victor 340 vs. RPM Air Gap on a 408
[Re: Crizila]
#726555
06/19/10 02:44 AM
06/19/10 02:44 AM
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Joined: Jun 2005
Posts: 793
Utah
topbrent
super stock
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super stock
Joined: Jun 2005
Posts: 793
Utah
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Not to be a fanboi of other folks cars or speak for them, but (in addition to crizila's big 300) a good car that defies logic is qwkmopardan's 4100lb 1979 300. He is running a single plane intake and a big cam in a very heavy car street car. - Victor 340 intake on his pump-gas 408 with a 262 @.050 flat tappet cam. - Runs 11.60's. - Ported junkyard 587 iron heads, too... Quote:
qwkmopardan
This one is a 408 with similar heads as the Demon but car weighs Over 4100lbs and has a full exh with 4 mufflers. Cam has only .527 lift and 262 at .050. It has near 15000 miles on it now and still going strong. Best 1/4 mile pass on this car is 11.600 at 116mph. ... cars have nicely ported Victor 340 intakes. The "300" has a 9" J converter
Although most folks would initially recommend a RPM Air Gap and a much smaller cam profile for this plus-sized car.
...Dan sure seems to run just dandy with the victor 340 and healthy cam, though.
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Re: Victor 340 vs. RPM Air Gap on a 408****UPDATE****
[Re: FlyFish]
#726557
07/19/10 08:40 AM
07/19/10 08:40 AM
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Joined: Apr 2007
Posts: 2,826
NY usa
540challenger
master
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master
Joined: Apr 2007
Posts: 2,826
NY usa
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Quote:
***UPDATE***
Got a chance to run my car with the Victor intake (see 2nd & 4th post on this thread)…looks like I paid good money to slow the car down. The car was running 7.08 in the heat with tire spinning 60’ time in the 1.55’s. I now have new tires and the Victor intake on and the car ran 7.16 in the heat with a dead hook 60’ of 1.59. The car won’t pull the front end off the ground anymore…definitely lost a lot of torque…the converter was flashing to ~5100 now its ~ 4800. I tried many different shift points over the course of 2 days and it ran the fastest when I wound it up to 6500 on every shift. With the Air-gap it ran faster shifting @ ~6000. I will be switching back to the Air-gap when time permits and keeping the Victor for future upgrades.
So, at least for my combo, the Victor was not the better intake.
 great info, Thanks for taking your time to post.
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Re: Victor 340 vs. RPM Air Gap on a 408****UPDATE****
[Re: 540challenger]
#726558
07/19/10 08:49 AM
07/19/10 08:49 AM
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Joined: Aug 2007
Posts: 1,564
St. Clair Shores, Michigan
bigsbigelow
pro stock
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pro stock
Joined: Aug 2007
Posts: 1,564
St. Clair Shores, Michigan
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Quote:
Quote:
***UPDATE***
Got a chance to run my car with the Victor intake (see 2nd & 4th post on this thread)…looks like I paid good money to slow the car down. The car was running 7.08 in the heat with tire spinning 60’ time in the 1.55’s. I now have new tires and the Victor intake on and the car ran 7.16 in the heat with a dead hook 60’ of 1.59. The car won’t pull the front end off the ground anymore…definitely lost a lot of torque…the converter was flashing to ~5100 now its ~ 4800. I tried many different shift points over the course of 2 days and it ran the fastest when I wound it up to 6500 on every shift. With the Air-gap it ran faster shifting @ ~6000. I will be switching back to the Air-gap when time permits and keeping the Victor for future upgrades.
So, at least for my combo, the Victor was not the better intake.
great info, Thanks for taking your time to post.
The intake was all that you changed? I would assume that some carb tuning and / or timing adjustments would be in store after the swap.
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Re: Victor 340 vs. RPM Air Gap on a 408
[Re: JC Childress]
#726559
07/19/10 08:54 AM
07/19/10 08:54 AM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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I have both and can say the Victor 340 is heads above the RPM manifold. My Victor equipped 340 with Eldebrock heads runs way better than it did with the RPM manifold. I did real world testing where I changed it out in my driveway and drove both the same day, same motor same carb. There's plenty of bottem end torque for me and runs my AC non stop during the summer. I've driven my 340 at least 3000 miles this summer alone. She screams and barks the tires harshly, was not that aggresive with the RPM manifold. With a 408, I'd have to say the RPM would get beat all to heck by the Victor. Checkout this threead from last week: web page  
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Re: Victor 340 vs. RPM Air Gap on a 408****UPDATE****
[Re: bigsbigelow]
#726560
07/19/10 10:01 AM
07/19/10 10:01 AM
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Joined: Dec 2006
Posts: 1,178
Indy
FlyFish
super stock
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super stock
Joined: Dec 2006
Posts: 1,178
Indy
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Quote:
Quote:
Quote:
***UPDATE***
Got a chance to run my car with the Victor intake (see 2nd & 4th post on this thread)…looks like I paid good money to slow the car down. The car was running 7.08 in the heat with tire spinning 60’ time in the 1.55’s. I now have new tires and the Victor intake on and the car ran 7.16 in the heat with a dead hook 60’ of 1.59. The car won’t pull the front end off the ground anymore…definitely lost a lot of torque…the converter was flashing to ~5100 now its ~ 4800. I tried many different shift points over the course of 2 days and it ran the fastest when I wound it up to 6500 on every shift. With the Air-gap it ran faster shifting @ ~6000. I will be switching back to the Air-gap when time permits and keeping the Victor for future upgrades.
So, at least for my combo, the Victor was not the better intake.
great info, Thanks for taking your time to post.
The intake was all that you changed? I would assume that some carb tuning and / or timing adjustments would be in store after the swap.
I also put on new tires because the old ones were DEAD...same size and type as before (28x11.5 Hoosier QTP)
67 Barracuda street car, 408, e85, 1.38 60', 6.44 @105.9 in the 1/8 mile, 10.19 @130.5 in the 1/4...so far....
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Re: Victor 340 vs. RPM Air Gap on a 408****UPDATE****
[Re: FlyFish]
#726561
07/19/10 10:06 AM
07/19/10 10:06 AM
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Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
Challenger 1
Too Many Posts
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Too Many Posts
Joined: Feb 2005
Posts: 28,312
Cincinnati, Ohio
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Quote:
Quote:
Quote:
Quote:
***UPDATE***
Got a chance to run my car with the Victor intake (see 2nd & 4th post on this thread)…looks like I paid good money to slow the car down. The car was running 7.08 in the heat with tire spinning 60’ time in the 1.55’s. I now have new tires and the Victor intake on and the car ran 7.16 in the heat with a dead hook 60’ of 1.59. The car won’t pull the front end off the ground anymore…definitely lost a lot of torque…the converter was flashing to ~5100 now its ~ 4800. I tried many different shift points over the course of 2 days and it ran the fastest when I wound it up to 6500 on every shift. With the Air-gap it ran faster shifting @ ~6000. I will be switching back to the Air-gap when time permits and keeping the Victor for future upgrades.
So, at least for my combo, the Victor was not the better intake.
great info, Thanks for taking your time to post.
The intake was all that you changed? I would assume that some carb tuning and / or timing adjustments would be in store after the swap.
I also put on new tires because the old ones were DEAD...same size and type as before (28x11.5 Hoosier QTP)
What was the density alitiude on the before and after runs?
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Re: Victor 340 vs. RPM Air Gap on a 408****UPDATE****
[Re: Challenger 1]
#726562
07/19/10 11:04 AM
07/19/10 11:04 AM
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Joined: Dec 2006
Posts: 1,178
Indy
FlyFish
super stock
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super stock
Joined: Dec 2006
Posts: 1,178
Indy
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One of the guys near my pit said the DA was ~ 4000 feet (about 92° F). The previous run was the same temp, but I don't know what the DA was. What I do know is with the old intake the worst 60’ times ever were 1.56-1.57, on “normal” hot summer days it would run 1.53’s. Also, the MPH was close to normal…down just a little. Normal in the heat, ~96.0-96.5…with the Victor it ran 95.6-95.9.
I think with a bigger cam, this intake would be great, but apparently my cam is just a little too small….or if I was running ¼ mile it would probably be faster since I would be spending more time above 6000 RPM…just thinking out loud.
67 Barracuda street car, 408, e85, 1.38 60', 6.44 @105.9 in the 1/8 mile, 10.19 @130.5 in the 1/4...so far....
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