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  #16  
Old 23-11-2017, 08:15 PM
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cluxford cluxford is offline
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Demon. Only rebuilt once in 5 years. Just needs tuning every 3 months. I’m hoping now I have it timed right that once I reject it we will be all good
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  #17  
Old 24-11-2017, 06:17 AM
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Demon. Only rebuilt once in 5 years. Just needs tuning every 3 months. Im hoping now I have it timed right that once I reject it we will be all good

I had a similar issue with the same carby. If it was tuned for WOT on the dyno, it drive like a pig putting around, but if it was tuned for daily driving, it performed like a pig under WOT. Could never find a happy medium.
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  #18  
Old 24-11-2017, 08:25 PM
Geoff 4 Geoff 4 is offline
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Commiserations to all those running the brand H stuff [ & clones ].....

I got a phone call about 2 weeks ago from the owner of a 66 GTO.

About 10 years ago I fitted a Carter TQ to his engine, to replace the leaking POS Holley that was on it. It is still running fine & has not been touched during those 10 yrs...
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  #19  
Old 02-12-2017, 08:50 PM
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66FAIRLANE 66FAIRLANE is offline
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Here are a couple more pics with the install tidied up. Had to start the learn again as I had the battery off for a while during this. No big deal. This can be avoided in future as you can download your tune to an SD card on the HHC & then also store it on your PC or laptop. I have worked out how to do this now ;D.

I put about another 30 miles on it & still really liking it. The plan is to let it 'finish' its learn then bring that tune into the PC & save it. Then on the PC I will experiment with different maps to try & lean cruise & implement decel fuel shut off & experiment with best hot start parameters.

Apart from the surge tank, with the air cleaner on you wouldn't know its there.



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  #20  
Old 03-12-2017, 05:48 PM
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Nev68 Nev68 is offline
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Looks good Andy.
Is there some type of inertia fuel cut off switch in this set up?
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  #21  
Old 04-12-2017, 08:10 AM
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66FAIRLANE 66FAIRLANE is offline
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Originally Posted by Nev68 View Post
Looks good Andy.
Is there some type of inertia fuel cut off switch in this set up?
No, just a stall cut off. My now 'lift pump' also has the original unchanged stall protection. In short if the engine keeps running so do the pumps. Inertia switch sounds like a good added level of protection.
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  #22  
Old 04-12-2017, 06:36 PM
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Nev68 Nev68 is offline
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Originally Posted by 66FAIRLANE View Post
No, just a stall cut off. My now 'lift pump' also has the original unchanged stall protection. In short if the engine keeps running so do the pumps. Inertia switch sounds like a good added level of protection.
I think it is OEM on some factory EFI vehicles in case you get in an accident / collision the fuel flow stops.
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  #23  
Old 04-12-2017, 07:04 PM
Geoff 4 Geoff 4 is offline
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Another fuel shut off method is a switch connected to the oil pressure sw.
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  #24  
Old 04-12-2017, 07:07 PM
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Nev68 Nev68 is offline
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Another fuel shut off method is a switch connected to the oil pressure sw.
So the engine has to stop for the fuel to stop pumping / flowing?
I think I'd rather the fuel stopped first.
I suppose you could use various safety cut offs in conjunction (?)
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Last edited by Nev68; 04-12-2017 at 07:12 PM..
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  #25  
Old 05-12-2017, 11:30 AM
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66FAIRLANE 66FAIRLANE is offline
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So has anyone got any suggestions for a quiet 'lift' pump so I can get rid of this Holley Blue? Doesn't have to support much HP anymore.

Last edited by 66FAIRLANE; 05-12-2017 at 01:18 PM..
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  #26  
Old 29-12-2017, 11:23 AM
69JavelinMan 69JavelinMan is offline
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My Sniper install here for those not following the Gremlin thread:

http://www.usmuscle.com.au/Forum/sho...=sniper&page=7

Haven't driven it yet, but I like it so far.
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  #27  
Old 29-12-2017, 01:03 PM
qik66 qik66 is offline
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Originally Posted by 66FAIRLANE View Post
So has anyone got any suggestions for a quiet 'lift' pump so I can get rid of this Holley Blue? Doesn't have to support much HP anymore.
Easiest suggestion would be to go back to a mechanical pump, would think it would have more than enough to supply the surge tank.
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  #28  
Old 29-12-2017, 01:33 PM
6pak300 6pak300 is offline
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A great safety cut out is an LPG cut out switch works off a tach or ignition lead signal, when you turn on the ignition it runs the pump for a few seconds, then when the engine fires up it turns the pump/s on.
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  #29  
Old 29-12-2017, 04:04 PM
69JavelinMan 69JavelinMan is offline
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LPG cut out works the same way as the inbuilt system in the Sniper ECU, it primes the system for a few second at key on, then needs a tach signal to keep the pump running. Engine stops, the pump stops.

OEM stuff probably has something built into the airbag deployment system that shuts down the fuel and ignition in an accident.
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  #30  
Old 01-01-2018, 07:56 PM
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66FAIRLANE 66FAIRLANE is offline
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Quote:
Originally Posted by qik66 View Post
Easiest suggestion would be to go back to a mechanical pump, would think it would have more than enough to supply the surge tank.
Yeh but I am all set up for electric from the tank. Plus I can prime the surge tank after it has sat for a while or doin stuff. Haven't bought one yet but will get around to it, the noisy blue still works.

I use a Bosch tachometric relay for the tank pump cut out & the Sniper controls the injection pump.
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