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Re: Hilborn EFI 512 Charger [Re: CSK] #2742008
02/11/20 04:24 PM
02/11/20 04:24 PM
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So. Burlington, Vt.
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fast68plymouth Offline
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Sounds like it would be a win all the way down the track.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Hilborn EFI 512 Charger [Re: fast68plymouth] #2742022
02/11/20 05:32 PM
02/11/20 05:32 PM
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Pattison Texas
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Originally Posted by fast68plymouth
Sounds like it would be a win all the way down the track.


Will find out sometime.
here is the 2nd pass, better veiw,,, the rummpity rump is the car behind me, my junk is quiet LOL

Last edited by csk; 02/11/20 06:51 PM.

1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5

Re: Hilborn EFI 512 Charger [Re: CSK] #2742046
02/11/20 06:48 PM
02/11/20 06:48 PM
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So. Burlington, Vt.
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Def doesn’t seem like it’s spinning at all.

Hopefully you can back there before it gets to be 100*.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Hilborn EFI 512 Charger [Re: fast68plymouth] #2742052
02/11/20 07:06 PM
02/11/20 07:06 PM
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Originally Posted by fast68plymouth
Def doesn’t seem like it’s spinning at all.

Hopefully you can back there before it gets to be 100*.


Yep, at least I remembered to S H I F T this time out LMBO !!! smile


1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5

Re: Hilborn EFI 512 Charger [Re: CSK] #2742751
02/14/20 09:02 AM
02/14/20 09:02 AM
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Shelby Twp. Mi
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CSK this is a cool project! Thanks for sharing. Keep on truckin'

Re: Hilborn EFI 512 Charger [Re: HardcoreB] #2746159
02/24/20 04:48 PM
02/24/20 04:48 PM
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Originally Posted by HardcoreB
CSK this is a cool project! Thanks for sharing. Keep on truckin'


Thank you HardcoreB, & everyone else also.

Made me some 12in ram tubes for my Hilborn EFI, bought some bulk 2 1/2 inch stainless steel thin wall pipe, save myself about 300 bucks, these longer runners should get the car to leave harder & HOPEFULLY get a better 60 foot ,. I even made the bell end, using a bearing press & one of my old drum brake hubs, had the perfect taper to make the bell.

88008214_2843279929064031_1011527925637316608_n.jpg87729888_2843279972397360_890593225813786624_n.jpg87366555_2843340469057977_5282099893295382528_n.jpg87879904_2843340529057971_2498646857090072576_n.jpg

1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5

Re: Hilborn EFI 512 Charger [Re: CSK] #2746183
02/24/20 06:58 PM
02/24/20 06:58 PM
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Got the air cleaners on they slip down about halfway to where the runner goes about halfway through the air filter, it'll work great for the street, when I do go back to the dragstrip, all I have to do is just take off the little aluminum top off of each filter and will be wide open

87046261_2843522415706449_7571787743802425344_n.jpg87438930_2843522479039776_5969768550166953984_n.jpg

1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5

Re: Hilborn EFI 512 Charger [Re: CSK] #2746403
02/25/20 01:21 PM
02/25/20 01:21 PM
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north of coder
moparx Offline
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great tip on making the bell end !
that's one reason i have so many small chunks of "stuff" scattered around. you never know when something needs a fabbing "shape".
you may only use it once, but when you do, and it's successful, [as in your bell end fabrication] then it has been worthwhile hoarding that item for it's "intended" purpose.
beer

Re: Hilborn EFI 512 Charger [Re: moparx] #2746413
02/25/20 01:34 PM
02/25/20 01:34 PM
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So. Burlington, Vt.
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fast68plymouth Offline
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Having the filter in place may actually help with keeping the siphoning affect minimized compared to them being open on the top.

Worth a test imo.

Nice job on the stacks. up

I’ll be interested to hear if there’s any seat of the pants difference from behind the wheel.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Hilborn EFI 512 Charger [Re: fast68plymouth] #2746424
02/25/20 01:57 PM
02/25/20 01:57 PM
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Pattison Texas
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Originally Posted by fast68plymouth
Having the filter in place may actually help with keeping the siphoning affect minimized compared to them being open on the top.

Worth a test imo.

Nice job on the stacks. up

I’ll be interested to hear if there’s any seat of the pants difference from behind the wheel.


Thanks guys, I should see some LB/HR of fuel changes in the tuning of the main fuel table, my car wont hook on the street to see if the converter launch [flash] changes, will have to see that at the track in my data log & the time slip, will take the car out today & see how it drives on the street. Dwayne I agree on the filters, I can remove just the alum tops & the filter stays on the ram tube & would block the siphoning, like you said it is all worth testing at the track.will keep Y'all posted.


1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5

Re: Hilborn EFI 512 Charger [Re: CSK] #2746481
02/25/20 05:19 PM
02/25/20 05:19 PM
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Pattison Texas
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Went out for a short drive, had to wait for the cop to turn left & I went to the right on the highway 529, nailed it in 2nd gear up to 6100rpm seems to pull about the same, track time will be the tell, drivabilty is much better with the longer runner, the ECU did add about 11% more fuel in the WOT fuel cells 5000 rpm to 6100 rpm The length of the intake runner was 17" went to 24" to help lower RPM for a better 60' time at the track

Last edited by csk; 02/25/20 05:30 PM.

1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5

Re: Hilborn EFI 512 Charger [Re: CSK] #2746785
02/26/20 05:15 PM
02/26/20 05:15 PM
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Michigan
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I absolutely love this car.


1987 Fifth Avenue - 512/518/D60
Re: Hilborn EFI 512 Charger [Re: CSK] #2746854
02/26/20 08:10 PM
02/26/20 08:10 PM
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Bend,OR USA
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I think I would try leaning it down at light part throttle cruise under 2500 RPM to 14.8 AFR or even leaner scope wrench
12.4 to 13.2 it great for best power at WOT or more pedal pressures but less fuel AFR at light throttle high manifold pressure seems to be better to me twocents scope twocents


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Hilborn EFI 512 Charger [Re: Cab_Burge] #2746857
02/26/20 08:16 PM
02/26/20 08:16 PM
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Originally Posted by Cab_Burge
I think I would try leaning it down at light part throttle cruise under 2500 RPM to 14.8 AFR or even leaner scope wrench
12.4 to 13.2 it great for best power at WOT or more pedal pressures but less fuel AFR at light throttle high manifold pressure seems to be better to me twocents scope twocents


I have tried it leaner but it does not like it, makes it run a little warm, not bad but it is a good 10 degrees more , gas millage has been 14mpg on the road. I do appreciate the input Cab in the video it was running high 13'S low 14

Last edited by csk; 02/26/20 08:18 PM.

1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5

Re: Hilborn EFI 512 Charger [Re: CSK] #2770321
05/02/20 01:57 AM
05/02/20 01:57 AM
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Doing a Track rental this Saturday night @ Houston Raceway Park , the DA looks like it will be 1700ft from the forecast, I am bringing some different runner lengths to try out, the ones I made the 11.04 @ 123mph made for a total of 17", the ones on the car now make 24" & I have some for 19" , I will run these with the lids OFF the air filters ,I hope to make some tuning progress.

Quote,, I absolutely love this car.
Thanks Mark M

Last edited by csk; 05/02/20 02:04 AM.

1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5

Re: Hilborn EFI 512 Charger [Re: CSK] #2770374
05/02/20 10:09 AM
05/02/20 10:09 AM
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So. Burlington, Vt.
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fast68plymouth Offline
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“This” Saturday nite....... as in tonite?

Have fun!!


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Hilborn EFI 512 Charger [Re: fast68plymouth] #2770412
05/02/20 11:57 AM
05/02/20 11:57 AM
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Originally Posted by fast68plymouth
“This” Saturday nite....... as in tonite?

Have fun!!


Yes tonight, we just need 10 cars to make the cut, waiting on a call from Austin the track director, if not tonight, will go Sunday tomorrow.

Just got confirmation from Austin for tonight.

Last edited by csk; 05/02/20 12:49 PM.

1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5

Re: Hilborn EFI 512 Charger [Re: CSK] #2770426
05/02/20 12:39 PM
05/02/20 12:39 PM
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north of coder
moparx Offline
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i'm looking for some 10's ! smile
beer

Re: Hilborn EFI 512 Charger [Re: CSK] #2770478
05/02/20 03:56 PM
05/02/20 03:56 PM
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I would like o see you hit it from a in gear idle at the track to see if flashing the converter will help it 60 Ft. better scope up twocents
Some cars like that and some don't confused


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Hilborn EFI 512 Charger [Re: Cab_Burge] #2770506
05/02/20 05:48 PM
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Originally Posted by Cab_Burge
I would like o see you hit it from a in gear idle at the track to see if flashing the converter will help it 60 Ft. better scope up twocents
Some cars like that and some don't confused


I think you are correct Cab, thinking 1200 rpm & let it eat. all loaded up & fixin to get on I-10 east to Baytown A/C blowin smile


1968 Charger COLD A/C Hilborn EFI
512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim
2020 T/A 392 Stock 11.79 @ 114.5

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