Re: Blower intakes and efi?
[Re: BigBlockMopar]
#1213432
04/12/12 08:02 AM
04/12/12 08:02 AM
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Joined: May 2004
Posts: 12,418 Taxes & Virus's R-US, NY
Dragula
I Live Here
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I Live Here
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Taxes & Virus's R-US, NY
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Quote:
On the setup I'm putting together I was hoping I could use the Hilborn shotgun injector hat directly on the blower, but I was indeed wondering how those 2 large valves could manage off-idle and part-throttle situations.
Any solutions to this issue? Perhaps mounting flat-ish valve-bodies between blower and hat, does something like that exist??Quote:
Yes, you can hold the timing and the fuel back a little so its not like an on/off switch. I run a bug catcher normally aspirated on my Hemi, and it was very touchy. I have two programs. One that gives it what it wants "race program" and one that holds back a little "street program"...Made the car a lot easier to drive.
I have also seen, for the Big & Ugly injectors, an adjustable mechanical throttle linkage that allows each hole to be opened at different throttle postions like a dual quad linkage with a slider adjustment...I have pics of it somewhere.
Last edited by Dragula; 04/12/12 08:02 AM.
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Re: Blower intakes and efi?
[Re: DaytonaTurbo]
#1213433
04/12/12 12:10 PM
04/12/12 12:10 PM
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Joined: Jan 2003
Posts: 1,938 Sonora CA
Mopar_Rich
top fuel
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Posts: 1,938
Sonora CA
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Quote:
Did you find a flow bias to the front cylinders during low loads/normal driving ranges or just when the blower started really working and cranking out the boost?
Bias was more boost dependent than RPM dependent. The higher the boost, the less the bias.
Quote:
On the setup I'm putting together I was hoping I could use the Hilborn shotgun injector hat directly on the blower, but I was indeed wondering how those 2 large valves could manage off-idle and part-throttle situations.
Perhaps mounting flat-ish valve-bodies between blower and hat, does something like that exist??
Yes. Many people use typical style "flat" throttle bodies and they have progressive linkage. They work fine and can be hidden. You could also do what Dragula said and progressively link the two plates - but that sounds complicated to me. Backing off on the timing takes the power away so the car becomes more drivable, but it also takes some of the fun out it.
Quote:
Do you think this would also be the case with a pure gaseous fuel like Propane?
I don't know. But the effects were less as the injector hat got hotter so I am assuming charge atomization was a parameter, which makes sense. I never played with Propane.
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Re: Blower intakes and efi?
[Re: Mopar_Rich]
#1213441
04/12/12 04:18 PM
04/12/12 04:18 PM
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Joined: May 2004
Posts: 12,418 Taxes & Virus's R-US, NY
Dragula
I Live Here
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I Live Here
Joined: May 2004
Posts: 12,418
Taxes & Virus's R-US, NY
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Quote:
Cool. I couldn't see from the pics if the plates were still on one shaft. Very creative solution even if the mechanics look like something that should be on "Mythbusters"
Not my cup of tea, but then again I wasn't trying to street a +500 cube blown engine with a B&U injector...But I do take some notes.
Rich,
The 472 hydraulic cammed Hemi on your site with the Procharger, which Procharger unit was that?
I would love somthing like that with an SMRE reverse rotation belt set-up like the 540 Hemi...I just don't need 1500hp.
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Re: Blower intakes and efi?
[Re: Mopar_Rich]
#1213443
04/17/12 02:31 AM
04/17/12 02:31 AM
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Joined: Dec 2004
Posts: 1,757 levittown pa
fstfish66
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top fuel
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levittown pa
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great topic,,,im just now starting to research this for my street driven cruise nite ...car show blown 340 66 barracuda,,ide like to get rid of the carbs,,way to rich in my opinion,,,,and a hat style injector may get less attention at state inspection,,,
i dont race it just drive it and have fun,,,where can i look for information on a set up that would work for me,,,,thanks
1966 barracuda prostreeter super charged 340(SOLD) 1940 dodge coupe 241 hemi street rod 2014 ram express hemi 4x4 dailey driver 2015 cherokee 2013 R/T classic
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Re: Blower intakes and efi?
[Re: fstfish66]
#1213444
04/17/12 07:06 AM
04/17/12 07:06 AM
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Joined: May 2004
Posts: 12,418 Taxes & Virus's R-US, NY
Dragula
I Live Here
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I Live Here
Joined: May 2004
Posts: 12,418
Taxes & Virus's R-US, NY
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Quote:
great topic,,,im just now starting to research this for my street driven cruise nite ...car show blown 340 66 barracuda,,ide like to get rid of the carbs,,way to rich in my opinion,,,,and a hat style injector may get less attention at state inspection,,,
i dont race it just drive it and have fun,,,where can i look for information on a set up that would work for me,,,,thanks
I love the bug catcher set-ups on blowers...They have about the lowest profile you can get, and they look awesome. Go with what Rich says on the injectors above and below, and you will be very happy, just lighter in the wallet.
I especially like the self learning feature and will be putting my Classic FAST up for sale this weekend to upgrade to XFI 2.0....
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Re: Blower intakes and efi?
[Re: DaytonaTurbo]
#1213445
04/17/12 11:22 AM
04/17/12 11:22 AM
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Joined: Oct 2007
Posts: 4,213 New York
polyspheric
master
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master
Joined: Oct 2007
Posts: 4,213
New York
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The triangle is an over-simplified version of the correct (viz. highly developed) shape, which looks suspiciously similar to a NACA duct. Examine a late Eaton discharge port. Backfire + fuel above the rotors = very loud noise. Linkage: read my article here: http://victorylibrary.com/mopar/TB-linkage.htm
Boffin Emeritus
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Re: Blower intakes and efi?
[Re: Dragula]
#1213446
04/17/12 04:47 PM
04/17/12 04:47 PM
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Joined: Dec 2004
Posts: 1,757 levittown pa
fstfish66
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top fuel
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levittown pa
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hey thanks for the quick reply,,to run injectors below the blower i would have to have the powder coating stripped off, and bungs put in the runners,,,small block blower intakes are hard to come by,,,,but thats not a problem,,im wondering if i would need them below vs just above the blower for this mild set up,,, any info is great, and thanks you,,, your motor looks killer,,,is that a sheet metal type intake ??
1966 barracuda prostreeter super charged 340(SOLD) 1940 dodge coupe 241 hemi street rod 2014 ram express hemi 4x4 dailey driver 2015 cherokee 2013 R/T classic
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Re: Blower intakes and efi?
[Re: fstfish66]
#1213447
04/17/12 06:42 PM
04/17/12 06:42 PM
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Joined: May 2004
Posts: 12,418 Taxes & Virus's R-US, NY
Dragula
I Live Here
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I Live Here
Joined: May 2004
Posts: 12,418
Taxes & Virus's R-US, NY
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Quote:
hey thanks for the quick reply,,to run injectors below the blower i would have to have the powder coating stripped off, and bungs put in the runners,,,small block blower intakes are hard to come by,,,,but thats not a problem,,im wondering if i would need them below vs just above the blower for this mild set up,,, any info is great, and thanks you,,, your motor looks killer,,,is that a sheet metal type intake ??
Well to drill holes in an intake, you certainly don't need to stripe off powder coating or any paint. And if your careful enough, you also won't have to re-paint or powder coat it.
Small block blower intakes are plentiful now that Indy offers the Mod Man with a blower top, so at $640...Its about half the price of the other units currently available.
As far as the injectors, Rich says both...I would think you could get away with only 4 of them up top on a small block though.
As for my intake, its a cast aluminum Indy intake that I customized a little.
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Re: Blower intakes and efi?
[Re: Dragula]
#1213448
04/17/12 07:03 PM
04/17/12 07:03 PM
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Joined: Jan 2003
Posts: 8,857 poplar bluff mo.
toplescuda
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poplar bluff mo.
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Id like to know more about the progressive bug catcher i have a low profile psi hat (4 square butterflys) that i want to run on mech injection
1970 barracuda convert. 1 of 59 1970 pro street A.A.R. clone (panther pink) 1971 charger 2015 hellcat challenger. Redline red 2014 quad cab 4x4 ram 8 speed hemi
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