Re: Intake porting?
[Re: gch]
#3193388
11/26/23 12:18 PM
11/26/23 12:18 PM
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Joined: Dec 2021
Posts: 1,130 Loudoun County, VA
Brad_Haak
super stock
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super stock
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Loudoun County, VA
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Big or small block? What does the combination run now? How much hood clearance do you have? Tested any spacers? What sort of $ do you want to spend and what type of gains are you expecting for the $?
2021 Challenger 6.4L Scat Pack 1320 100% stock: 1.680, 11.894 at 113.75 (DA 175 ft) weight reduction, wheels, tires, Hellcat air box: 1.661, 11.686 at 115.97 (DA 710 ft)
1973 Challenger 452 ci street/strip [2008] pump gas, DOT radials: 1.454, 10.523 at 126.44 (DA 514 ft)
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Re: Intake porting?
[Re: gch]
#3193407
11/26/23 02:10 PM
11/26/23 02:10 PM
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Joined: Jan 2003
Posts: 14,499 So. Burlington, Vt.
fast68plymouth
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Brad might be able to get into his “way back machine” and find some results from a stock vs modified M1 single plane test. I don’t recall how modified the non-stock one was though. I would say I don't want the intake to be the restriction compared to the heads. It would generally depend on how you tested it, to establish how much of a restriction is there. Any time I’ve put a cast single plane manifold on a head and tested it on the flow bench, the flow goes down. If you tested the intake on its own, it could very well flow a higher number than the head by itself.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: Intake porting?
[Re: AndyF]
#3193448
11/26/23 05:25 PM
11/26/23 05:25 PM
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Joined: Dec 2021
Posts: 1,130 Loudoun County, VA
Brad_Haak
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I'd have to go on a treasure hunt to locate my M1 stock vs modified intake tests cuz I don't recall where that stuff is now. But to Dwayne's point, any time I've added an intake to a head on the flow bench, the intake always dropped the head-alone flow numbers a bit... some more than others.
The question about the hood clearance was for the same reason as Andy commented: if you don't have a hood clearance issue, switching intakes (Trick Flow or mildly modded Victor) will likely get as much of an improvement as putting $ into porting a 4150-type M1 intake. You could drop $500+ in porting labor and maybe pick up 10 HP, or you could drop $500 on a different intake and probably pick up just as much, plus you can sell the M1 to recoup some of the cost. A full-blown porting job from Wilson is gonna be 3 or 4 times that much, but they'll probably get everything out of the intake that's possible.
2021 Challenger 6.4L Scat Pack 1320 100% stock: 1.680, 11.894 at 113.75 (DA 175 ft) weight reduction, wheels, tires, Hellcat air box: 1.661, 11.686 at 115.97 (DA 710 ft)
1973 Challenger 452 ci street/strip [2008] pump gas, DOT radials: 1.454, 10.523 at 126.44 (DA 514 ft)
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Re: Intake porting?
[Re: Brad_Haak]
#3193456
11/26/23 06:02 PM
11/26/23 06:02 PM
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Joined: Jan 2003
Posts: 14,499 So. Burlington, Vt.
fast68plymouth
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I Live Here
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So. Burlington, Vt.
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Brad, what was your best ET with the M1?
Another thing with regards to the hood clearance situation is…….which may or may not come into play on a particular combo, is……… The M1 single plane has the tipped/angled carb pad, so the carb is level with the ground with the engine sitting in stock mounts.
The Victor and TF intakes are not angled, so the carb pad is parallel to the crank.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: Intake porting?
[Re: fast68plymouth]
#3193466
11/26/23 06:51 PM
11/26/23 06:51 PM
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Joined: Dec 2021
Posts: 1,130 Loudoun County, VA
Brad_Haak
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Loudoun County, VA
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Brad, what was your best ET with the M1? Going by memory... ported with a 1" Super Sucker spacer... squeaked into the 10.5s
2021 Challenger 6.4L Scat Pack 1320 100% stock: 1.680, 11.894 at 113.75 (DA 175 ft) weight reduction, wheels, tires, Hellcat air box: 1.661, 11.686 at 115.97 (DA 710 ft)
1973 Challenger 452 ci street/strip [2008] pump gas, DOT radials: 1.454, 10.523 at 126.44 (DA 514 ft)
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Re: Intake porting?
[Re: Brad_Haak]
#3193503
11/26/23 09:52 PM
11/26/23 09:52 PM
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Joined: Jan 2003
Posts: 6,142 Melbourne , Australia
LA360
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master
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Melbourne , Australia
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Chad Speier at Speier Racing Heads still does a lot of intakes I believe
Chopper Scott on Yellow Bullet seems to do some nice work as well.
Scott Foxwell from Foxwell Motorsport also does nice work.
Alan Jones
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Re: Intake porting?
[Re: Brad_Haak]
#3193594
11/27/23 12:02 PM
11/27/23 12:02 PM
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Joined: Jan 2003
Posts: 14,499 So. Burlington, Vt.
fast68plymouth
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I Live Here
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Brad, what was your best ET with the M1? Going by memory... ported with a 1" Super Sucker spacer... squeaked into the 10.5s And my response to that is…….. how bad can they be?
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
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Re: Intake porting?
[Re: EchoSixMike]
#3193764
11/27/23 08:51 PM
11/27/23 08:51 PM
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Joined: Mar 2005
Posts: 3,142 Central NC
gch
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Hughes seems to still be doing it. That seems a reasonably priced initial step. S/F...Ken M I had Hughes do their deep port match to several intakes years ago. Have one,sold one (dummy),and one was on my Polara when I sold it 3 years ago (bigger dummy). Last time I talked to Hughes their machinist had quit. I figure picking up 20 or 30 cfm should help everywhere.Maybe that is unrealistic?? I have two or three I wouldn't mind doing but money doesn't grow on any trees in my yard. The trick flow/victor may have been the smart move. It could be a test for later on switching to one after the M1 for any gains. Bobby,I wish I had kept the Indy 440-2D I sold you years ago.It would be interesting to see how it compares. I appreciate the knowledge guys.
Last edited by gch; 11/27/23 08:53 PM.
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Re: Intake porting?
[Re: EchoSixMike]
#3193789
11/27/23 10:41 PM
11/27/23 10:41 PM
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Joined: Feb 2005
Posts: 20,174 PA.
pittsburghracer
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"Little"John
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Hughes seems to still be doing it. That seems a reasonably priced initial step. S/F...Ken M I could be mistaken but I think their porter retired.
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: Intake porting?
[Re: fast68plymouth]
#3193899
11/28/23 01:51 PM
11/28/23 01:51 PM
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Joined: Dec 2021
Posts: 1,130 Loudoun County, VA
Brad_Haak
super stock
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super stock
Joined: Dec 2021
Posts: 1,130
Loudoun County, VA
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Brad, what was your best ET with the M1? Going by memory... ported with a 1" Super Sucker spacer... squeaked into the 10.5s And my response to that is…….. how bad can they be?
2021 Challenger 6.4L Scat Pack 1320 100% stock: 1.680, 11.894 at 113.75 (DA 175 ft) weight reduction, wheels, tires, Hellcat air box: 1.661, 11.686 at 115.97 (DA 710 ft)
1973 Challenger 452 ci street/strip [2008] pump gas, DOT radials: 1.454, 10.523 at 126.44 (DA 514 ft)
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Re: Intake porting?
[Re: gch]
#3193924
11/28/23 02:56 PM
11/28/23 02:56 PM
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Joined: Jan 2003
Posts: 9,875 Weddington, N.C.
Streetwize
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Weddington, N.C.
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Hughes seems to still be doing it. That seems a reasonably priced initial step. S/F...Ken M I had Hughes do their deep port match to several intakes years ago. Have one,sold one (dummy),and one was on my Polara when I sold it 3 years ago (bigger dummy). Last time I talked to Hughes their machinist had quit. I figure picking up 20 or 30 cfm should help everywhere.Maybe that is unrealistic?? I have two or three I wouldn't mind doing but money doesn't grow on any trees in my yard. The trick flow/victor may have been the smart move. It could be a test for later on switching to one after the M1 for any gains. Bobby,I wish I had kept the Indy 440-2D I sold you years ago.It would be interesting to see how it compares. I appreciate the knowledge guys. I still have the 440-2D , I spent about 80% of the time porting the lower plenum, I'm not sure you ever noticed but there was actually a casting flaw (a void "hole" slightly larger than the diameter of a Sharpie) deep inside (I think?) the #6 roof through to the #8 floor but I epoxied it up when I ported it. You are free to borrow it back if you want to try it but of course I'd like to have it back for a future build. What size motor and what compression and head are you running?
Last edited by Streetwize; 11/28/23 02:58 PM.
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