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Re: Super Sniper install [Re: AndyF] #2540201
08/22/18 10:06 PM
08/22/18 10:06 PM
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Akron, Ohio
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That will be a fun car especially with the stick shift. After cruising my Duster for a few years now I'm definitely thinking I need to do something about my crappy gas mileage if I want to cruise further.


1970 Challenger, all aluminum 528 Hemi, HDK suspension, Tremec 5 speed manual
Re: Super Sniper install [Re: ProSport] #2540212
08/22/18 10:24 PM
08/22/18 10:24 PM
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Oregon
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AndyF Offline OP
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The switch to the Sniper system and the Sniper ignition setup appears to be about a 30% increase in miles/gallon at freeway speeds. The engine also runs much better than it did with any of the carbs I had on there.

Re: Super Sniper install [Re: AndyF] #2540222
08/22/18 11:22 PM
08/22/18 11:22 PM
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Pattison Texas
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Do you have a dyno comparison carb to Sniper on this engine ?


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: Super Sniper install [Re: AndyF] #2540286
08/23/18 02:18 AM
08/23/18 02:18 AM
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Not on this engine but I've done it with other engines. There isn't much difference in power on the dyno, but the drivability difference is huge.

Re: Super Sniper install [Re: AndyF] #2540416
08/23/18 01:26 PM
08/23/18 01:26 PM
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S.E. Michigan
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Good reading. thx for the thread.


Rich H.

Esse Quam Videri




Re: Super Sniper install [Re: AndyF] #2540466
08/23/18 03:18 PM
08/23/18 03:18 PM
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Texas, USA
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I can also attest to the ignition control improvement on these F.I. systems. I installed an Edelbrock E-Street 2 on an Eddy headed 440 Cuda for one of my customers and oh what a difference! I saw massive low end torque improvements in driveability when we added this feature on the Edelbrock system.


68 Cuda Notchback [Email]10.86@120[/Email] 69 Charger R/T 440/505 2009 Challenger SRT8
Re: Super Sniper install [Re: AndyF] #2541211
08/25/18 12:07 PM
08/25/18 12:07 PM
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Michigan
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Andy, sorry if I missed this further up in the thread. Could you have locked out the MSD distributor and let the Sniper control timing that way?


1987 Fifth Avenue - 512/518/D60
Re: Super Sniper install [Re: MarkZ] #2541218
08/25/18 12:25 PM
08/25/18 12:25 PM
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Yes you can but it isn't recommended. The MSD uses an inductive pickup and EFI systems really prefer a nice square wave trigger. So all of the EFI vendors recommend using Hall effect triggers. The Hyperspark has a Hall effect pickup in it and it is already locked out.

I sold my MSD to a guy who wanted a MSD billet distributor and took the cash and bought the Hyperspark. The Hyperspark distributor is fairly inexpensive since it is just a housing with a spinning target wheel and a trigger pickup.

If you have a MSD I'd recommend doing the same thing. Sell it rather than try to convert it and buy the Hyperspark.

Re: Super Sniper install [Re: AndyF] #2541237
08/25/18 01:11 PM
08/25/18 01:11 PM
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Michigan
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Yeah, I've got an MSD Pro Billet on the motor now. Never attempted wiring the Holley for timing control yet. $250 isn't bad at all. Should be able to make most of that back in selling the MSD.

Would you see any issue in running it with an old analog MSD 6AL box? You're running a roller cam too, right? Did you have to swap out the iron gear?

Thanks Andy.


1987 Fifth Avenue - 512/518/D60
Re: Super Sniper install [Re: AndyF] #2541325
08/25/18 06:10 PM
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Exactly, the MSD pro billet distributors are $330 new so you can usually sell them for $200 pretty easily. Your MSD box should work okay. Just study the wiring diagrams in the Holley instructions to make sure you can hook it up. I think you just use the points wire to trigger the MSD box.

Re: Super Sniper install [Re: AndyF] #2541347
08/25/18 07:24 PM
08/25/18 07:24 PM
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Romeo MI
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Originally Posted By AndyF
Exactly, the MSD pro billet distributors are $330 new so you can usually sell them for $200 pretty easily. Your MSD box should work okay. Just study the wiring diagrams in the Holley instructions to make sure you can hook it up. I think you just use the points wire to trigger the MSD box.


Yeah pretty sure it is the white wire.. love this
injection stuff
wave

Re: Super Sniper install [Re: AndyF] #2541778
08/26/18 11:06 PM
08/26/18 11:06 PM
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I sent a data log file to Rich and he noticed that the engine gets a little unhappy past 6500 rpm. I couldn't hear it or feel it on the dyno but the RPM and MAP traces both get a little jiggy up there. Could be a slight misfire or perhaps the hyd roller lifters are bleeding down a little bit. The power doesn't fall off very quickly but the RPM trace is skipping around enough that it sure looks like something is up. I'll have to keep an eye on it. I don't really need to wind it out that hard. 6000 rpm is 125 mph in forth gear and the car won't run 125 in the quarter.

Re: Super Sniper install [Re: AndyF] #2551710
09/18/18 10:54 PM
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Re: Super Sniper install [Re: Mr onetwo] #2581651
11/22/18 07:02 PM
11/22/18 07:02 PM
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Originally Posted By Mr onetwo
Originally Posted By AndyF
I installed the Trick Flow intake and the Hyperspark ignition system. Just need to button up the wiring and then she'll be ready to go again.
This is a little off topic...who's valve covers are those Andy?Very clean look. Also, any decision on the water neck/sending unit piece?Would like one for sure.


The water neck spacer for the coolant sensor is now in production. I have them in stock so you should be able to order them from any of the dealers who carry my stuff.

http://arengineering.com/products/thermostat-spacer-with-efi-sensor-port/

Re: Super Sniper install [Re: AndyF] #2581752
11/23/18 12:15 AM
11/23/18 12:15 AM
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Tulsa OK
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That looks nice!


68 Barracuda Formula S 340
87 "Chrysler" Conquest
Re: Super Sniper install [Re: AndyF] #2581785
11/23/18 02:09 AM
11/23/18 02:09 AM
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Thanks. Here is an installed picture.

AR438c (Medium).JPG
Re: Super Sniper install [Re: Tig] #2586543
12/03/18 12:43 PM
12/03/18 12:43 PM
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Martinsville, IN
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Originally Posted By Tig
Apologies for the hijack here but what studs are you using on the water pump to block? I've had a gasket go behind the motor plate at the track before, this set up would make it a bit easier.
TIA up


I would love to have this answer also


eBay-cdwmotorsports
Re: Super Sniper install [Re: cdwmotorsports] #2586557
12/03/18 01:12 PM
12/03/18 01:12 PM
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Oregon
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Originally Posted By cdwmotorsports
Originally Posted By Tig
Apologies for the hijack here but what studs are you using on the water pump to block? I've had a gasket go behind the motor plate at the track before, this set up would make it a bit easier.
TIA up


I would love to have this answer also


Not a big mystery. Just ARP studs.

Re: Super Sniper install [Re: AndyF] #2652199
05/05/19 11:50 AM
05/05/19 11:50 AM
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Philadelphia
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Originally Posted by AndyF
Thanks. Here is an installed picture.


Hey Andy

Your water neck adapter is really good looking and aims the sensor in a way that the wiring would be real clean. On mine I have two senders in the water pump where you have blue anodized plugs- one for the autometer in my dash and one for the holley ecu. Is there any reason you didn’t use these? Mine read pretty dead on together and the factory sender was already using the outboard port on my donor 400 motor.

It’s funny- while I already had an innovate wideband and autometer water temp installed I was about to put in a vacuum gauge too- duh! MAP sensor is the same thing once I learned to read kpa! I do enjoy the redundant gauges though since the 3.5” screen is too small to watch much and I have it inside my glovebox door.

The sniper & hyperspark has been awesome so far- best $ I spent after the 512 stroker kit. Thanks for all your time on the different forums we’re on!

DA6A55BC-FE97-44F8-8F00-F3F884191801.jpeg
Re: Super Sniper install [Re: radar] #2652233
05/05/19 12:49 PM
05/05/19 12:49 PM
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Oregon
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You have enough room in there to mount the Holley Digital Dash. Just need to build a bracket and hook it up. The Digital Dash works great with the Sniper and it will allow you to add a bunch of other inputs also.

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