Re: Indy 3X , 550 cubes, gains from p porting the intake?
[Re: gregsdart]
#2987628
11/21/21 07:56 PM
11/21/21 07:56 PM
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AndyF
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Port injection?
So I guess it still has to have the fuel rails, etc installed. Individual nozzles screw into each runner by the head. Have you played around with different nozzle locations? There should be some power gain from evaporation but I don't know where the nozzle should be to optimize that.
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Re: Indy 3X , 550 cubes, gains from p porting the intake?
[Re: gregsdart]
#2987672
11/21/21 10:51 PM
11/21/21 10:51 PM
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Cab_Burge
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Port injection?
So I guess it still has to have the fuel rails, etc installed. Individual nozzles screw into each runner by the head. Is that after having the manifold machined for them?
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Indy 3X , 550 cubes, gains from p porting the intake?
[Re: Cab_Burge]
#2987676
11/21/21 11:08 PM
11/21/21 11:08 PM
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gregsdart
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Port injection?
So I guess it still has to have the fuel rails, etc installed. Individual nozzles screw into each runner by the head. Is that after having the manifold machined for them? I drilled and tapped them. As far as nozzle placement I have asked experts about it, as I recall no advantage to moving them. But, a call to Kinsler tomorrow since you mentioned it for another opinion.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: Indy 3X , 550 cubes, gains from p porting the intake?
[Re: gregsdart]
#2987691
11/22/21 01:28 AM
11/22/21 01:28 AM
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Cab_Burge
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I've seen, years ago, roundy round dirt sprint cars with the Kinsler F.I. using them with the methanol injector nozzles mounted halfway up the tubes, not anywhere near the flanges.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Indy 3X , 550 cubes, gains from p porting the intake?
[Re: AndyF]
#2987702
11/22/21 05:43 AM
11/22/21 05:43 AM
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440Jim
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Looks great. Should pick up some power for you. I've tested a lot of Wilson intakes and they are usually 20 to 30 hp better than as cast. Definitely looks great. I don't know anything. So, itis good to hear experience fron testing.
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Re: Indy 3X , 550 cubes, gains from p porting the intake?
[Re: 440Jim]
#2987817
11/22/21 01:57 PM
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Jeremiah
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Talked to Wilson Manifolds yesterday and i am having a " mid level full port" done. That includes work on full length of the runners but no major cutting I assume. So what was the cost? This was a quote for my 440-2 before we started to make an entirely new intake based on that casting: "Our Competition Porting Service is $1675 and an EFI Conversion (install bungs, billet -8 or -10 fuel rails and stanchions) is $800. " I will most likely send it out eventually as my low deck engine collection grows.
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Re: Indy 3X , 550 cubes, gains from p porting the intake?
[Re: 440Jim]
#2987874
11/22/21 03:45 PM
11/22/21 03:45 PM
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AndyF
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OK, I think Indy is selling the 3X intake for $700 now. Plus $1700 ... $2,400 cast intake manifold. I did look at Wilson's web site and some of their sheet metal intakes are around $4,500
I guess the days of $150 used intakes from the swap meet are over... I'll sell you a used intake for $150. It won't make as much power as a $1500 intake, but your engine will run.
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Re: Indy 3X , 550 cubes, gains from p porting the intake?
[Re: AndyF]
#2988580
11/24/21 09:32 AM
11/24/21 09:32 AM
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gregsdart
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Port injection?
So I guess it still has to have the fuel rails, etc installed. Individual nozzles screw into each runner by the head. Have you played around with different nozzle locations? There should be some power gain from evaporation but I don't know where the nozzle should be to optimize that. After reading this I chose to leave the nozzles where they were. Puppy agreed. Reading further about down nozzles in the heads that spray directly on the intake valve is interesting.
Last edited by gregsdart; 11/24/21 09:36 AM.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: Indy 3X , 550 cubes, gains from p porting the intake?
[Re: gregsdart]
#2988606
11/24/21 10:50 AM
11/24/21 10:50 AM
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madscientist
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Port injection?
So I guess it still has to have the fuel rails, etc installed. Individual nozzles screw into each runner by the head. Have you played around with different nozzle locations? There should be some power gain from evaporation but I don't know where the nozzle should be to optimize that. After reading this I chose to leave the nozzles where they were. Puppy agreed. Reading further about down nozzles in the heads that spray directly on the intake valve is interesting. That’s on stack injection and I’m not sure I even believe that. I ran two flying toilets on a tunnel ram and every time I moved the nozzles up I made more power everywhere. Maybe, maybe because stack injection limits airflow moving the nozzles up may be a power loss. Maybe. But on a manifold like yours moving the nozzles up to the base of the plenum will make more power. If you lose some idle quality, increase the idle check pressure. I ended up at 12 or 14 PSI on the idle check with the nozzles up high and it idled as good as it did with the lower nozzle position.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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Re: Indy 3X , 550 cubes, gains from p porting the intake?
[Re: madscientist]
#2989474
11/26/21 11:10 PM
11/26/21 11:10 PM
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gregsdart
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Mad, I will investigate further. Thanks all for input. The last piece of the puzzle showed up today, a Jesel belt drive. Now if I have the right length pushrods,,,,,, 🤔
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: Indy 3X , 550 cubes, gains from p porting the intake?
[Re: gregsdart]
#2993708
12/09/21 05:36 PM
12/09/21 05:36 PM
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440Jim
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Got the 3X intake back from Wilson. I wish I knew what I am looking at🧐 Greg, Are the port exit openings (to the heads) this size? or closer to 1.375 x 2.65 From the Indy web site for intake gaskets:
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Re: Indy 3X , 550 cubes, gains from p porting the intake?
[Re: gregsdart]
#2993933
12/10/21 07:52 AM
12/10/21 07:52 AM
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tboomer
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My ports match the 572 gaskets perfectly. They were done by Radar(nickname?) In Iowa in 2002. Roger Lechtenberg. Same guy that did my MW Victors and Indy intake.
Need your rear end checked out? Contact Grizzly!!
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