Re: School me on SB intakes please
[Re: slantzilla]
#2107570
07/10/16 11:12 PM
07/10/16 11:12 PM
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Joined: Jan 2003
Posts: 11,711 Portage,michigan
B3422W5
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,711
Portage,michigan
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I would put a 950 on it. I found out the hard way with my 318. Mopar small blocks go faster with bigger carbs. 750 was a full tenth slower the same night at the track as the 950. I drive my car way more than race it, and the 950 works perfectly and doesn't load up or foul plugs. Regards intake, I love the weiand excellerator. Excellent street strip intake. Have had one on many combinations. Had one on a 13 flat bolt ons type 340, to a 10.70's Eddie 416 stroker, and everywhere in between. Brother has in on his 9 to 1 360 now that runs 11.30's. Btw, he has a 750 on his 360, just bought a new 950 for it. I bet it picks his car up, will see real soon. I would run the excellerator, a 950, and probably a 4 hole spacer( like a super sucker) to begin with. Saw somebody in the race parts section had one for 125 bucks.
Last edited by B3422W5; 07/10/16 11:19 PM.
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight 418 BPE factory replacement headed stroker, 565 lift solid cam Best so far, 10.40 @127 1/4 1.41 best 60 foot 6.60 at 103.90 1/8
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Re: School me on SB intakes please
[Re: slantzilla]
#2108022
07/11/16 05:44 PM
07/11/16 05:44 PM
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Joined: Jan 2003
Posts: 11,711 Portage,michigan
B3422W5
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,711
Portage,michigan
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It was in last month I think. Was 125. If you find the ad I think he still has it.
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight 418 BPE factory replacement headed stroker, 565 lift solid cam Best so far, 10.40 @127 1/4 1.41 best 60 foot 6.60 at 103.90 1/8
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Re: School me on SB intakes please
[Re: slantzilla]
#2108841
07/12/16 05:26 PM
07/12/16 05:26 PM
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Joined: Jan 2003
Posts: 9,875 Weddington, N.C.
Streetwize
master
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master
Joined: Jan 2003
Posts: 9,875
Weddington, N.C.
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The only problem with too large a carb on the street is that generally with an OOTB holley 4150 is you need roughly 20-ish % of rated airflow to initiate main metering, a good 650 will make more torque at part throttle and the transition will be less of a 'light switch' power-wise. A pro-form CNC replacement body on a 650-700 baseplate would be a nice upgrade. Plenty of 11 and 12 second cars run 650's, Really a 340 only needs about 600CFM of total airflow to turn 6200 RPM assuming 100% VE, the smallish .480 lift cam probably won't pull it much higher than that and it'll be past it's power peak sooner than that anyway (so the VE will be falling off). A smaller carb will also make a slightly loose converter a little better part throttle drivability too...opinions vary I guess but I've been running 340's on the street since at least the early 80's (including a 4 speed W2 headed 69 dart in 80-81).
The RPM and Air Gap are functionally identical, once the motor is warm (from the coolant flowing to it and around it and the crossover heat on the flanges) the manifolds both heat up about the same (IMHO) in normal summer driving. If it was a bracket car, I'd run the Air gap just so I could pack some ice under the plenum between rounds. t oput it another way...I wouldn't pass up a good deal on and RPM to hold out for an Air Gap on a street driven car.
Last edited by Streetwize; 07/12/16 05:35 PM.
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Re: School me on SB intakes please
[Re: Streetwize]
#2108852
07/12/16 05:51 PM
07/12/16 05:51 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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The only problem with too large a carb on the street is that generally with an OOTB holley 4150 is you need roughly 20-ish % of rated airflow to initiate main metering, a good 650 will make more torque at part throttle and the transition will be less of a 'light switch' power-wise. A pro-form CNC replacement body on a 650-700 baseplate would be a nice upgrade. Plenty of 11 and 12 second cars run 650's, Really a 340 only needs about 600CFM of total airflow to turn 6200 RPM assuming 100% VE, the smallish .480 lift cam probably won't pull it much higher than that and it'll be past it's power peak sooner than that anyway (so the VE will be falling off). A smaller carb will also make a slightly loose converter a little better part throttle drivability too...opinions vary I guess but I've been running 340's on the street since at least the early 80's (including a 4 speed W2 headed 69 dart in 80-81).
The RPM and Air Gap are functionally identical, once the motor is warm (from the coolant flowing to it and around it and the crossover heat on the flanges) the manifolds both heat up about the same (IMHO) in normal summer driving. If it was a bracket car, I'd run the Air gap just so I could pack some ice under the plenum between rounds. t oput it another way...I wouldn't pass up a good deal on and RPM to hold out for an Air Gap on a street driven car. I have heard(dont know for fact) that the air gap made more power on the dyno.. BUT like your saying.. they can control the heat... and I agree that I wouldnt pass on a cheap RPM vs the air gap
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Re: School me on SB intakes please
[Re: slantzilla]
#2108903
07/12/16 07:03 PM
07/12/16 07:03 PM
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Joined: Oct 2003
Posts: 7,506 Az
Crizila
master
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master
Joined: Oct 2003
Posts: 7,506
Az
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John, this is Chris Johnson's old motor out of his Duster. It went 13 teens with a stick on street tires. I'm hoping with the 904 and good tires to go high 12's. I think that's reasonable.
B3, I looked last night and didn't see it. I was half asleep though. Hmmm. High 12's Shouldn't be a problem Dennis. Actually went with Chris when he originally bought that motor ( Thought it had aluminum heads on it at the time? Land yacht ran high 12.80 with a similar set up. Pic = modified 3310 I ran it the time.
Fastest 300
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Re: School me on SB intakes please
[Re: Streetwize]
#2108925
07/12/16 07:48 PM
07/12/16 07:48 PM
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Joined: Jan 2003
Posts: 11,711 Portage,michigan
B3422W5
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,711
Portage,michigan
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The only problem with too large a carb on the street is that generally with an OOTB holley 4150 is you need roughly 20-ish % of rated airflow to initiate main metering, a good 650 will make more torque at part throttle and the transition will be less of a 'light switch' power-wise. A pro-form CNC replacement body on a 650-700 baseplate would be a nice upgrade. Plenty of 11 and 12 second cars run 650's, Really a 340 only needs about 600CFM of total airflow to turn 6200 RPM assuming 100% VE, the smallish .480 lift cam probably won't pull it much higher than that and it'll be past it's power peak sooner than that anyway (so the VE will be falling off). A smaller carb will also make a slightly loose converter a little better part throttle drivability too...opinions vary I guess but I've been running 340's on the street since at least the early 80's (including a 4 speed W2 headed 69 dart in 80-81).
The RPM and Air Gap are functionally identical, once the motor is warm (from the coolant flowing to it and around it and the crossover heat on the flanges) the manifolds both heat up about the same (IMHO) in normal summer driving. If it was a bracket car, I'd run the Air gap just so I could pack some ice under the plenum between rounds. t oput it another way...I wouldn't pass up a good deal on and RPM to hold out for an Air Gap on a street driven car. I proved on my 318 at the track, in same night testing( back to back passes) that a 750 was slower by a full tenth( actually a hair more) than a 950. Zero doubt about it. Brett and others on here told me the results I witnessed would be the case. And they were right. And I have been driving 340's on the street since 1971. A 650 over a 950 on a modestly warmed over 340 will be a dog in comparison. I drive my car on the street all the time. And have had the same plugs in it since early last summer, so over a year. That is idling around, stop light to stoplight, and a 70 mile round trip to the track thrown in for good measure.
Last edited by B3422W5; 07/12/16 08:15 PM.
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight 418 BPE factory replacement headed stroker, 565 lift solid cam Best so far, 10.40 @127 1/4 1.41 best 60 foot 6.60 at 103.90 1/8
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Re: School me on SB intakes please
[Re: slantzilla]
#2108939
07/12/16 08:13 PM
07/12/16 08:13 PM
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Joined: Jan 2003
Posts: 11,711 Portage,michigan
B3422W5
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 11,711
Portage,michigan
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Found it. Last page of second quarter engine parts( small block) section. Poster named Rapid Robert has it listed
69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight 418 BPE factory replacement headed stroker, 565 lift solid cam Best so far, 10.40 @127 1/4 1.41 best 60 foot 6.60 at 103.90 1/8
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Re: School me on SB intakes please
[Re: LSP]
#2109151
07/13/16 01:08 AM
07/13/16 01:08 AM
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Joined: Nov 2011
Posts: 2,154 Its a TRAP!
DARTH V8Я
Oh No!! I just had a moron attack!
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Oh No!! I just had a moron attack!
Joined: Nov 2011
Posts: 2,154
Its a TRAP!
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My dad's 340 didn't pick up at all going from the OE #2100 iron intake to the LD340, it did pick up about .15 going to the Holley Strip Dominator, 4000 flash convertor though. LD340.. overrated intake. People think it's the cat's ass cause the road race Challenger T/A & AAR Cuda used them.
When it takes more than a sweet mullet to prove you rule at the trailer park..
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Re: School me on SB intakes please
[Re: DARTH V8Я]
#2109176
07/13/16 01:54 AM
07/13/16 01:54 AM
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Joined: Feb 2005
Posts: 20,174 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,174
PA.
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My dad's 340 didn't pick up at all going from the OE #2100 iron intake to the LD340, it did pick up about .15 going to the Holley Strip Dominator, 4000 flash convertor though. LD340.. overrated intake. People think it's the cat's ass cause the road race Challenger T/A & AAR Cuda used them. I know EXACTLY what an LD340 is capable as I did flowbench testing on one, some porting and more testing, and then some more porting and more flowbench testing. It was all included in a post here 2-3 years ago. Gog-gone good intake with some work up to a certain point. There was still some on the table but I didn't want to do what was needed to grab it.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: School me on SB intakes please
[Re: pittsburghracer]
#2109178
07/13/16 01:59 AM
07/13/16 01:59 AM
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Joined: Nov 2011
Posts: 2,154 Its a TRAP!
DARTH V8Я
Oh No!! I just had a moron attack!
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Oh No!! I just had a moron attack!
Joined: Nov 2011
Posts: 2,154
Its a TRAP!
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My dad's 340 didn't pick up at all going from the OE #2100 iron intake to the LD340, it did pick up about .15 going to the Holley Strip Dominator, 4000 flash convertor though. LD340.. overrated intake. People think it's the cat's ass cause the road race Challenger T/A & AAR Cuda used them. I know EXACTLY what an LD340 is capable as I did flowbench testing on one, some porting and more testing, and then some more porting and more flowbench testing. It was all included in a post here 2-3 years ago. Gog-gone good intake with some work up to a certain point. There was still some on the table but I didn't want to do what was needed to grab it. Flow #'s aren't everything. Just sayin..
When it takes more than a sweet mullet to prove you rule at the trailer park..
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Re: School me on SB intakes please
[Re: DARTH V8Я]
#2109181
07/13/16 02:10 AM
07/13/16 02:10 AM
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Joined: Feb 2005
Posts: 20,174 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,174
PA.
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My dad's 340 didn't pick up at all going from the OE #2100 iron intake to the LD340, it did pick up about .15 going to the Holley Strip Dominator, 4000 flash convertor though. LD340.. overrated intake. People think it's the cat's ass cause the road race Challenger T/A & AAR Cuda used them. I know EXACTLY what an LD340 is capable as I did flowbench testing on one, some porting and more testing, and then some more porting and more flowbench testing. It was all included in a post here 2-3 years ago. Gog-gone good intake with some work up to a certain point. There was still some on the table but I didn't want to do what was needed to grab it. Flow #'s aren't everything. Just sayin.. You kill me. Ok I should have also stated that while flow testing I also test air-speeds (most guys won't or can't) and airspeed actually tells me more than the flow numbers do. Stick to your cast iron anchors as they will work too with proper knowledge. Carry-on.
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: School me on SB intakes please
[Re: pittsburghracer]
#2109185
07/13/16 02:13 AM
07/13/16 02:13 AM
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Joined: Feb 2005
Posts: 20,174 PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,174
PA.
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DARTH V8Я someone messaged me the other day and asked me if you remind me of anyone. Did you use to go by a different name on Moparts?
1970 Duster Edelbrock headed 408 5.984@112.52 422 Indy headed small block 5.982@112.56 mph 9.42@138.27
Livin and lovin life one day at a time
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Re: School me on SB intakes please
[Re: pittsburghracer]
#2109187
07/13/16 02:15 AM
07/13/16 02:15 AM
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Joined: Nov 2011
Posts: 2,154 Its a TRAP!
DARTH V8Я
Oh No!! I just had a moron attack!
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Oh No!! I just had a moron attack!
Joined: Nov 2011
Posts: 2,154
Its a TRAP!
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You kill me. Ok I should have also stated that while flow testing I also test air-speeds (most guys won't or can't) and airspeed actually tells me more than the flow numbers do. Stick to your cast iron anchors as they will work too with proper knowledge. Carry-on.
Anchors lol. I have a performer RPM air gap in the Garage. Should I be like everybody else and 'chuck her on dare'? Gotta love innuendos. Carry on.
When it takes more than a sweet mullet to prove you rule at the trailer park..
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Re: School me on SB intakes please
[Re: B3422W5]
#2109206
07/13/16 03:25 AM
07/13/16 03:25 AM
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Joined: Jan 2003
Posts: 20,179 Park Forest, IL
slantzilla
OP
Too Many Posts
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OP
Too Many Posts
Joined: Jan 2003
Posts: 20,179
Park Forest, IL
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Found it. Last page of second quarter engine parts( small block) section. Poster named Rapid Robert has it listed Thanks again! His PM box is full, sent him an e-mil. I saw quikmopardan's tunnel ram too. That would be nice for a future project, but not now.
Last edited by slantzilla; 07/13/16 04:33 AM.
"Everybody funny, now you funny too."
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Re: School me on SB intakes please
[Re: Crizila]
#2109207
07/13/16 03:28 AM
07/13/16 03:28 AM
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Joined: Jan 2003
Posts: 20,179 Park Forest, IL
slantzilla
OP
Too Many Posts
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OP
Too Many Posts
Joined: Jan 2003
Posts: 20,179
Park Forest, IL
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High 12's Shouldn't be a problem Dennis. Actually went with Chris when he originally bought that motor ( Thought it had aluminum heads on it at the time? Land yacht ran high 12.80 with a similar set up. Pic = modified 3310 I ran it the time. He told me he ran it just the way I picked it up. Maybe he has the Aluminum heads on his 416? Anyways, I hope I can make this pig run as good as yours.
"Everybody funny, now you funny too."
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