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Re: HIlborn Mech. fuel injection on a street strip car??
[Re: 23T Hemmee]
#1405313
03/21/13 03:15 PM
03/21/13 03:15 PM
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Joined: May 2004
Posts: 12,388
Taxes & Virus's R-US, NY
Dragula
I Live Here
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I Live Here
Joined: May 2004
Posts: 12,388
Taxes & Virus's R-US, NY
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Quote:
Drag,
You've got an awesome looking setup, but you need to get the return spring on the same arm as the throttle cable, otherwise, you're twisting the throttle shaft everytime you open it up. Won't happen today, but somewhere down the line, it will eventually break the shaft at one of the butterfly slots......don't ask me how I know.....  
Its on my wish list along with a better cable than a lokar, and to have it be allowed as legal in the Gasser Racing Series I race in...
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Re: HIlborn Mech. fuel injection on a street strip car??
[Re: Dragula]
#1405315
03/21/13 03:23 PM
03/21/13 03:23 PM
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Joined: Jan 2003
Posts: 75,012
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,012
U.S.S.A.
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Quote:
Quote:
Quote:
My set-up...Seems a lot of people commenting that don't own one...
I see electronic injectors in those pictures so technically you don't own one either ... 
Mine is efi...Its the best way to make mfi work on the street!
I agree with you , I was just pointing out the irony of your reply ...
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Re: HIlborn Mech. fuel injection on a street strip car??
[Re: Cab_Burge]
#1405316
03/21/13 03:46 PM
03/21/13 03:46 PM
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Joined: Jan 2003
Posts: 10,000
Frostbitefalls MN (Rocky&Bullw...
gregsdart
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 10,000
Frostbitefalls MN (Rocky&Bullw...
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One of the big injection companys has a diagram of linkages (Kinsler?)that produce extremely slow opening of the butterflys at off idle, and speed up to go one to one at WOT. That ought to solve that problem.
8..603 156 mph best, 2905 lbs 549, indy 572-13, alky
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Re: HIlborn Mech. fuel injection on a street strip car??
[Re: Dragula]
#1405318
03/22/13 09:38 AM
03/22/13 09:38 AM
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Joined: Jan 2003
Posts: 8,027
Tulsa OK
Bad340fish
master
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master
Joined: Jan 2003
Posts: 8,027
Tulsa OK
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What kind of ET did it put down with that combo?
68 Barracuda Formula S 340
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Re: HIlborn Mech. fuel injection on a street strip car??
[Re: Bad340fish]
#1405319
03/22/13 10:28 AM
03/22/13 10:28 AM
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Joined: May 2004
Posts: 12,388
Taxes & Virus's R-US, NY
Dragula
I Live Here
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I Live Here
Joined: May 2004
Posts: 12,388
Taxes & Virus's R-US, NY
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Quote:
What kind of ET did it put down with that combo?
I will have to get back to you on that...It was in the high 10's in testing, but it was killing valve train parts like they were candy with that cam. It should have been running low 10's high 9's, but coulda shoulda woulda.
Since then I have detuned the cam, ported the heads a little more, put all new valve train in and currently running a Prosystems carb to be legal. Its already back in the 10.90's and should be in the 10.70's when we get it back out next month.
If they allow Nostalgic looking efi into the GRS, then it will go back on with an XFI self learning computer instead of the current FAST batch fire computer....Either way, its a lot easier on parts, very drivable and still pretty fast for pump gas.
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Re: HIlborn Mech. fuel injection on a street strip car??
[Re: Dragula]
#1405320
03/22/13 11:08 AM
03/22/13 11:08 AM
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Joined: Jan 2003
Posts: 16,925
NC
440Jim
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 16,925
NC
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Quote:
My set-up...
Now that looks cool.
Is it running alcohol or gasoline? OK, now I see your last post, gasoline. Much easier to start in cold weather than alcohol. My drag car has a gasoline primer system to make starting easier, then push the alcohol fuel shut off lever to ON for racing.
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The first blown street hemi motor I assembled for a customer had one of those (Bird or Bugcatsher on it with EFI, I don't remember which size one now:o , 3300 CFM at WOT 
) and it was a real bear and painful to drive at slow speeds on the street 
OP, if you do decide to buy a set of stack injectors and there is a choice on the butterfly sizes, smaller maybe easier to drive on the street 
