Hemi Bathtub Single 4 Intakes - Anybody tried one?
#2881123
01/27/21 10:30 PM
01/27/21 10:30 PM
|
Joined: Jan 2005
Posts: 597 Lost in the 70's
440gtx6
OP
mopar
|
OP
mopar
Joined: Jan 2005
Posts: 597
Lost in the 70's
|
Does anyone here have any experience with these? From what I've been told, they're not really suited for drag racing but are they efficient enough for some street drivability as well as on an oval track? Do they have the fuel puddling and distribution problems of the old rat roaster style intakes? [img] https://imgur.com/ksk15eo[/img]
69 EF8 GTX 440 auto 72 EB5 RR/GTX 440 auto 70 EW1 GTX 440-6 4 spd 70 EF8 Satellite 318 auto (452 coming soon) 70 FK5 Satellite 318 auto 71 FC7 Cuda 340 4 spd
|
|
|
Re: Hemi Bathtub Single 4 Intakes - Anybody tried one?
[Re: AndyF]
#2881167
01/28/21 01:40 AM
01/28/21 01:40 AM
|
Joined: Jan 2005
Posts: 597 Lost in the 70's
440gtx6
OP
mopar
|
OP
mopar
Joined: Jan 2005
Posts: 597
Lost in the 70's
|
Not expecting it to be a daily driver or even in cold weather so I expected that.
Also would like to hear of any experiences with interior baffle modifications needed to avoid fuel puddling in one end.
Most of these seem to have the baffles or dividers cast in but the one in my pic does not.
69 EF8 GTX 440 auto 72 EB5 RR/GTX 440 auto 70 EW1 GTX 440-6 4 spd 70 EF8 Satellite 318 auto (452 coming soon) 70 FK5 Satellite 318 auto 71 FC7 Cuda 340 4 spd
|
|
|
Re: Hemi Bathtub Single 4 Intakes - Anybody tried one?
[Re: polyspheric]
#2881169
01/28/21 01:58 AM
01/28/21 01:58 AM
|
Joined: Jan 2005
Posts: 597 Lost in the 70's
440gtx6
OP
mopar
|
OP
mopar
Joined: Jan 2005
Posts: 597
Lost in the 70's
|
That sounds like worth a try, I was thinking it could be tuned that way. Probably going to take some trial and error and testing.
Thanks for the help!
69 EF8 GTX 440 auto 72 EB5 RR/GTX 440 auto 70 EW1 GTX 440-6 4 spd 70 EF8 Satellite 318 auto (452 coming soon) 70 FK5 Satellite 318 auto 71 FC7 Cuda 340 4 spd
|
|
|
Re: Hemi Bathtub Single 4 Intakes - Anybody tried one?
[Re: 440gtx6]
#2881171
01/28/21 02:30 AM
01/28/21 02:30 AM
|
Joined: Aug 2003
Posts: 43,195 Bend,OR USA
Cab_Burge
I Win
|
I Win
Joined: Aug 2003
Posts: 43,195
Bend,OR USA
|
I had a customer in SO CA high desert (4000+ Ft.) that had bought a 1966 or 1967 clone Plymouth NASCAR of Marty Robbins old race car that had one of those intakes on it that I worked on, it had extensive mods in the intake from Petty Ent. I think. I rebuilt it with a 4 250 stroke crank assembly set up for pump gas back in 2000 or so, I dyno that motor and it had the best EGT readings I have ever seen on any carbureted Mopar motor It would level off above 900 RPM to have within 50 degrees F on all 8 EGT and hold that from light part throttle to WOT up to 7500 RPM I didn't think to take pictures or draw a picture of those mods, DANG IT
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
|
|
|
Re: Hemi Bathtub Single 4 Intakes - Anybody tried one?
[Re: 440gtx6]
#2881172
01/28/21 02:31 AM
01/28/21 02:31 AM
|
Joined: Jan 2004
Posts: 8,273 fredericksburg,va
cudaman1969
master
|
master
Joined: Jan 2004
Posts: 8,273
fredericksburg,va
|
20 years ago a friend had the nascar intake on his 64. He made a top out of 1/4” aluminum with two AFB carbs, cross ram. He drove it 50 miles to shows once a week plus around town a lot but never said anything about any problems with it. Haven’t talked with him in awhile so I might call and ask him. To me it sounded good, fired right up and no attitude when leaving the shows.
Last edited by cudaman1969; 01/28/21 02:36 AM.
|
|
|
Re: Hemi Bathtub Single 4 Intakes - Anybody tried one?
[Re: polyspheric]
#2881476
01/28/21 09:49 PM
01/28/21 09:49 PM
|
Joined: Jan 2005
Posts: 597 Lost in the 70's
440gtx6
OP
mopar
|
OP
mopar
Joined: Jan 2005
Posts: 597
Lost in the 70's
|
Are these cast in divider walls similar to what you're suggesting. This seems to maybe be a later version than the one I posted above? [img] https://imgur.com/31ph97p[/img]
Last edited by 440gtx6; 01/28/21 09:50 PM.
69 EF8 GTX 440 auto 72 EB5 RR/GTX 440 auto 70 EW1 GTX 440-6 4 spd 70 EF8 Satellite 318 auto (452 coming soon) 70 FK5 Satellite 318 auto 71 FC7 Cuda 340 4 spd
|
|
|
Re: Hemi Bathtub Single 4 Intakes - Anybody tried one?
[Re: 440gtx6]
#2881480
01/28/21 10:04 PM
01/28/21 10:04 PM
|
Joined: Mar 2011
Posts: 3,077 Michigan
A727Tflite
master
|
master
Joined: Mar 2011
Posts: 3,077
Michigan
|
x
Last edited by Transman; 02/09/21 09:43 AM.
|
|
|
Re: Hemi Bathtub Single 4 Intakes - Anybody tried one?
[Re: cudaman1969]
#2881533
01/29/21 01:01 AM
01/29/21 01:01 AM
|
Joined: Jan 2003
Posts: 3,504 DFW
mr_340
master
|
master
Joined: Jan 2003
Posts: 3,504
DFW
|
20 years ago a friend had the nascar intake on his 64. He made a top out of 1/4” aluminum with two AFB carbs, cross ram. He drove it 50 miles to shows once a week plus around town a lot but never said anything about any problems with it. Haven’t talked with him in awhile so I might call and ask him. To me it sounded good, fired right up and no attitude when leaving the shows. Dean Nicopolis had one with a crossram top. It looked like it would work better than the single 4bbl to me. My thought is two of the Autolite inline 4bbl carbs might be a trick way (and expensive) to go with that bottom.
Floyd Lippencott IV
|
|
|
Re: Hemi Bathtub Single 4 Intakes - Anybody tried one?
[Re: 440gtx6]
#2881828
01/29/21 07:49 PM
01/29/21 07:49 PM
|
Joined: Oct 2007
Posts: 4,206 New York
polyspheric
master
|
master
Joined: Oct 2007
Posts: 4,206
New York
|
How do any of the bases become cross ram, which requires each carburetor to feed only the bank of port extensions on the opposite side?
Boffin Emeritus
|
|
|
Re: Hemi Bathtub Single 4 Intakes - Anybody tried one?
[Re: polyspheric]
#2881843
01/29/21 08:50 PM
01/29/21 08:50 PM
|
Joined: Jan 2005
Posts: 597 Lost in the 70's
440gtx6
OP
mopar
|
OP
mopar
Joined: Jan 2005
Posts: 597
Lost in the 70's
|
Don't the dividers like in my second pic do that? At least with the single 4 top, looks like that was the intention anyway.
69 EF8 GTX 440 auto 72 EB5 RR/GTX 440 auto 70 EW1 GTX 440-6 4 spd 70 EF8 Satellite 318 auto (452 coming soon) 70 FK5 Satellite 318 auto 71 FC7 Cuda 340 4 spd
|
|
|
Re: Hemi Bathtub Single 4 Intakes - Anybody tried one?
[Re: 440gtx6]
#2881860
01/29/21 09:29 PM
01/29/21 09:29 PM
|
Joined: Mar 2011
Posts: 3,077 Michigan
A727Tflite
master
|
master
Joined: Mar 2011
Posts: 3,077
Michigan
|
x
Last edited by Transman; 02/09/21 09:44 AM.
|
|
|
Re: Hemi Bathtub Single 4 Intakes - Anybody tried one?
[Re: A727Tflite]
#2881913
01/29/21 11:57 PM
01/29/21 11:57 PM
|
Joined: Jan 2005
Posts: 597 Lost in the 70's
440gtx6
OP
mopar
|
OP
mopar
Joined: Jan 2005
Posts: 597
Lost in the 70's
|
Yep, agreed.
The single 4 top seems to be a compromise to follow the rules and also maintain hood clearance.
On the other hand it must have provided some performance benefit otherwise why did most hemis use it in place of the earlier single 4 nascar dual plane.
69 EF8 GTX 440 auto 72 EB5 RR/GTX 440 auto 70 EW1 GTX 440-6 4 spd 70 EF8 Satellite 318 auto (452 coming soon) 70 FK5 Satellite 318 auto 71 FC7 Cuda 340 4 spd
|
|
|
Re: Hemi Bathtub Single 4 Intakes - Anybody tried one?
[Re: 440gtx6]
#2882060
01/30/21 02:34 PM
01/30/21 02:34 PM
|
Joined: Mar 2011
Posts: 3,077 Michigan
A727Tflite
master
|
master
Joined: Mar 2011
Posts: 3,077
Michigan
|
x
Last edited by Transman; 02/09/21 09:45 AM.
|
|
|
Re: Hemi Bathtub Single 4 Intakes - Anybody tried one?
[Re: mopacltd]
#2882211
01/30/21 10:55 PM
01/30/21 10:55 PM
|
Joined: Jan 2005
Posts: 597 Lost in the 70's
440gtx6
OP
mopar
|
OP
mopar
Joined: Jan 2005
Posts: 597
Lost in the 70's
|
Apparently it worked well enough for Charlie Glotzbach to go 200+ in the Daytona.
69 EF8 GTX 440 auto 72 EB5 RR/GTX 440 auto 70 EW1 GTX 440-6 4 spd 70 EF8 Satellite 318 auto (452 coming soon) 70 FK5 Satellite 318 auto 71 FC7 Cuda 340 4 spd
|
|
|
Re: Hemi Bathtub Single 4 Intakes - Anybody tried one?
[Re: mopacltd]
#2882214
01/30/21 11:05 PM
01/30/21 11:05 PM
|
Joined: Mar 2011
Posts: 3,077 Michigan
A727Tflite
master
|
master
Joined: Mar 2011
Posts: 3,077
Michigan
|
x
Last edited by Transman; 02/09/21 09:46 AM.
|
|
|
|
|