EFI: One 4-barrel o Dual-Quad TBI in a SBB 418 stroke
#3220530
03/15/24 01:08 AM
03/15/24 01:08 AM
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Joined: Jan 2004
Posts: 143 Buenos Aires, ARGENTINA
madmax2
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I currently have an SBM 418 stroker running with Holley HP EFI with 4-barrel TBI over weiand single plane intake (x-celerator). Looking ahead to future improvements and since the Holley HP ECU can handle 8 injectors, I thought about making it MPFI using a Super Victor EFI intake or getting another 4-barrel TBI and using a tunnel-ram. not for running, just for personal taste. what do you think?
pd: If I go for a 2x4 configuration that intake recommends
Last edited by madmax2; 03/15/24 01:17 AM.
'70 Dodge GTX sb 418ci (Early A-body), Lunati Solid cam 270°/243°@.050/.548", Edelbrock Heads, Weiand X-CELerator, Holley Terminator EFI, Tremec 6 sp manual, 3.90:1, TTI Headers.
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Re: EFI: One 4-barrel o Dual-Quad TBI in a SBB 418 stroke
[Re: AndyF]
#3220584
03/15/24 11:22 AM
03/15/24 11:22 AM
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Posts: 713 Lake Villa Il
INTMD8
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He is running Holley HP ecu.
I think it's worth going multi port injection. Whatever intake you decide to use I would run multi port. So, convert a single 4bbl or tunnel ram intake to multi port.
(I wouldn't get another TBI unit for the 2x4 setup)
Last edited by INTMD8; 03/15/24 11:23 AM.
69 Charger. 438ci Gen2 hemi. Flex fuel. Holley HP efi. 650rwhp @7250 510rwtq @5700
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Re: EFI: One 4-barrel o Dual-Quad TBI in a SBB 418 stroke
[Re: INTMD8]
#3220681
03/15/24 06:50 PM
03/15/24 06:50 PM
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AndyF
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I use a good single plane intake with a Holley throttle body. Edelbrock makes the Super Victor EFI for SB Mopar engines so that is what I'd use. I'm assuming that since it is a 418 it has good heads and the Super Victor intake will fit and work on there.
Last edited by AndyF; 03/15/24 06:51 PM.
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Re: EFI: One 4-barrel o Dual-Quad TBI in a SBB 418 stroke
[Re: madmax2]
#3221168
03/18/24 03:53 AM
03/18/24 03:53 AM
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Joined: Jan 2004
Posts: 143 Buenos Aires, ARGENTINA
madmax2
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thanks you, go to MPFI single plane and reuse the TBI body only.
'70 Dodge GTX sb 418ci (Early A-body), Lunati Solid cam 270°/243°@.050/.548", Edelbrock Heads, Weiand X-CELerator, Holley Terminator EFI, Tremec 6 sp manual, 3.90:1, TTI Headers.
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Re: EFI: One 4-barrel o Dual-Quad TBI in a SBB 418 stroke
[Re: madmax2]
#3221238
03/18/24 02:30 PM
03/18/24 02:30 PM
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RoadRunnerLuva
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I currently have an SBM 418 stroker running with Holley HP EFI with 4-barrel TBI over weiand single plane intake (x-celerator). Looking ahead to future improvements and since the Holley HP ECU can handle 8 injectors, I thought about making it MPFI using a Super Victor EFI intake or getting another 4-barrel TBI and using a tunnel-ram. not for running, just for personal taste. what do you think?
pd: If I go for a 2x4 configuration that intake recommends
Can you please give us some details on your engine What is the compression ratio, what heads are you using, camshaft, etc... thanks..
Plymouth Makes It!
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Re: EFI: One 4-barrel o Dual-Quad TBI in a SBB 418 stroke
[Re: RoadRunnerLuva]
#3221346
03/19/24 03:47 AM
03/19/24 03:47 AM
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Joined: Jan 2004
Posts: 143 Buenos Aires, ARGENTINA
madmax2
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Can you please give us some details on your engine What is the compression ratio, what heads are you using, camshaft, etc... thanks.. 10:1 CR, Lunati solid flat 404A1LUN (270ºadv, 243º@050, .548", 104º/110º), hand ported edelbrock head 280cfm@550", ported single plane XCELerator 300cfm. I have a street car
Last edited by madmax2; 03/19/24 10:39 PM.
'70 Dodge GTX sb 418ci (Early A-body), Lunati Solid cam 270°/243°@.050/.548", Edelbrock Heads, Weiand X-CELerator, Holley Terminator EFI, Tremec 6 sp manual, 3.90:1, TTI Headers.
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Re: EFI: One 4-barrel o Dual-Quad TBI in a SBB 418 stroke
[Re: madmax2]
#3221443
03/19/24 01:58 PM
03/19/24 01:58 PM
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Joined: Jan 2003
Posts: 5,324 Land 'O Lakes
RoadRunnerLuva
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Can you please give us some details on your engine What is the compression ratio, what heads are you using, camshaft, etc... thanks.. 10:1 CR, Lunati solid flat 404A1LUN (270ºadv, 241º@050, .548", 104º/110º), hand ported edelbrock head 280cfm@550", ported single plane XCELerator 300cfm. I have a street car Nice! It's very similar to the engine (418") in my street Duster. I have heavily ported J heads.. and a Bullet Racing solid cam #30400, using a ported/gasket matched Edelbrock single plane Victor intake. Fuel delivery is a Race Demon 850 cfm.
Plymouth Makes It!
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