Thread: New guy from Utah.

Tweet

Originally Posted by 35WINDOW

I have followed your build from the beginning, and you've done a fantastic job on it!
I'm posting because I also have a Holley EFI (mine's a Dominator) on my Car (I'm in Utah also), and had a few tuning issues in the beginning-after a bunch of looking at options, I found a remote Tuner who specializes in Holley EFI's and has a very good reputation (his pricing is reasonable too)- he remote tuned my Car (it's a screamer now, and he will help with problems if needed)-
He is on the Holley EFI Group on Facebook, and goes by Los Vasquez-his phone # is 561-644-0896, and he is super nice/helpful-he can help with any Holley product-
Closer to Home, Brock Lesner at Absolute Performance in West Jordan is a Holley EFI Dealer/Tuner (and has a Chassis Dyno), but I had a few issues getting an appointment with him-hope this helps, and I look forward to seeing your Truck in person at local Shows!

Thank you, I appreciate the info, we are hopefully fixing it right now so I have my fingers crossed we don't need to do that just yet. I hope we get to start sharing it soon, I'm ready to be away from the shop, having fun and socializing, we haven't committed to anything yet except Cache Valley, just need it to be right. When we drove it the other day, everything felt pretty good except the sniper issues.

Kind of a run down.

Bought first sniper early in the build back in 2016, by the time we even got to firing it up recently it had not been tested, ended up having a bad driver (as they tell us) giving us a bad 35.6 02 reading from the first fire up and every one after. So at this point I am out of any warranty, I would have pay to have Holley fix it and wait 4-6 weeks, so to get this thing on the road I just purchased another sniper and we swapped them out, also not realizing the sniper 2 would just take a little extra work to put on.

So we get the replacement on and it has 02 readings but they are all over the place and it kept shutting itself down (Red screening/no data). Of course we have data logged and documented what we did on every change and sent to Holley techs, phone calls etc. I ended up calling Summit the other day, they was cool and are letting me send that Sniper 1 back and I just payed the difference.

So here we are today. You can see the changed injector locations and ECU location, also took off the fuel pressure regulator.
PXL_20240503_194451972.jpg

PXL_20240503_194457613.jpg
So we have to redo some fuel line stuff and mount a fuel pressure regulator, building a bracket for that, we already pulled the touch screen and replaced with the new one, we're going to modify the throttle cable bracket, it comes with a plug that allows us to plug into the sniper 1 wiring. We are also going to relay the pink wire. Still waiting on AN fittings and some hose to show up, if we get that tomorrow I don't see why we can't have it all back together.
PXL_20240503_215427350.jpg

Third times a charm?

Sounds like you're on the right track-I had an issue with the Bosch 02 Sensors (readings all over.too), changed them over to the NTK and it straightened right out-
The original Sniper had a kind of dubious reputation, however from what I've heard the Sniper 2 has been a good unit-Hope it goes well for you-

That's a problem with builds that take years, pretty much everything you buy is out of warranty by the time you run it. I was pretty worried about my rebuilt trans I bought, kind of scary not knowing if it will work or not. Fortunately seems Ok other than a slightly harsh 1-2. Hope you have it licked this time.

Everything got swapped over, had to build a bracket for the fuel pressure regulator, modify the throttle cable bracket, rebuild some fuel lines, pull the screen wiring and mount the new one. So far so good, we are getting normal readings on everything, we still have a some engine noises we need to diagnose, I hope it's nothing like a collapsed lifter.

PXL_20240505_191825640.jpg

PXL_20240505_190121574.jpg

PXL_20240505_191620281.jpg

https://youtu.be/rGHguYc-qLI?si=JmSP27K5xckTH70I

https://youtu.be/eid4deR6e0Y?si=Kg-6ru6NXZx_5578

Hard to say how long before we experience problems with the sniper 2.

Now that we are getting better results with the Sniper 2 we have been running it and trying to pinpoint what our engine noise is that has been there since the beginning, triple checked valve lash.

PXL_20240510_234747200.jpg

Already had to put a little fuel back in.

PXL_20240511_234620202.jpg

Unfortunately I think we have a collapsed lifter, we are getting an oil analysis done to make sure we aren't having any bearing issues. I guess comp cams lifters are garbage. I hope it's just a matter of changing lifters out but I guess we'll see. Really sucks though.

Here is probably around 80% throttle.

https://youtu.be/scCfRjeoSvk?si=jzdZkLlb4zFaXRjQ

Originally Posted by FordyG

Now that we are getting better results with the Sniper 2 we have been running it and trying to pinpoint what our engine noise is that has been there since the beginning, triple checked valve lash.

Attachment 75949

Already had to put a little fuel back in.

Attachment 75950

Unfortunately I think we have a collapsed lifter, we are getting an oil analysis done to make sure we aren't having any bearing issues. I guess comp cams lifters are garbage. I hope it's just a matter of changing lifters out but I guess we'll see. Really sucks though.

Here is probably around 80% throttle.

https://youtu.be/scCfRjeoSvk?si=jzdZkLlb4zFaXRjQ

I won't agree or disagree on your opinion of comp cams, but when I put a new cam in the 350 in my 76 Vette I went with Howard's and have not been disappointed. With the junk coming out of China these days I went with an old time cam grinder and would do so again. Good luck, though if one went bad I'd consider replacing all of them, Just my2$

Originally Posted by NTFDAY

I won't agree or disagree on your opinion of comp cams, but when I put a new cam in the 350 in my 76 Vette I went with Howard's and have not been disappointed. With the junk coming out of China these days I went with an old time cam grinder and would do so again. Good luck, though if one went bad I'd consider replacing all of them, Just my2$

Yeah if we have to go changing lifters I am taking those comp cam lifters out.

I wonder if air could be trapped in there, maybe more run time would purge it out.