Hey guys, I’m almost all of the way through building my truck. I finally got it cranked making noise and burning some fuel. I’m looking for opinions on fuel management…i currently have a PSI conversion harness and factory red/blue ECU. The motor is far from stock so it needs tuning obviously. i can trailer it to a dyno/tuner…but after i leave i have no way to adjust/record etc. Is the holley worth it for a cammed/stroker n/a build? If the motor was stock i’d stick with my factory set up, but i’m leaning towards holley for my particular situation.
CK5
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Holley Terminator for stroker LS2?
- Thread starter shock88
- Start date
Do you plan to change it after tuned ? If not leave it factory pcm .
If you like to change a lot and KNOW how to tune fine go for a aftermarket setup .
If you like to change a lot and KNOW how to tune fine go for a aftermarket setup .
possibly injectors and or top end engine parts, im a fan of the holley system (with no real world experience of it) because of the ability to adjust some minor parameters if needed, like rev limiter or hot/cold idle etc. nothing earth shattering or detrimental to the motor.
have you checked out edelbrock pro flo 4 . and you change stuff from a smart phone on the fly .
just another option to look at .
also @folkenheath is a vendor here for this stuff .
just another option to look at .
https://www.edelbrock.com/pro-flo-4-efi-ecu-engine-harness-kit-for-gen-iii-24x-ls-engines-35711.html
also @folkenheath is a vendor here for this stuff .
i have not! thanks man ill look into that as well.
look at all the options . i wish i had back in the day .
good to hear! if i do go the holley route ill look into the extra features of the maxI have the terminator X max in my suburban.
Absolutely love it.
ahhh ok, i’m running a nv4500 so just the X sounds good enough for me
There is an innumerable amount of points of tuning that can be done. It's actually sort of overwhelming at first, and you can mess up some. But once you get used to it, and remember to keep one backup that you know at least runs good (seriously,set one up and don't play with that one lol).
You can play with all sorts of things. And the Holley forum pages are a great learning tool. LOTS of smart people on there that already know the system like the back of their hand.
You can play with all sorts of things. And the Holley forum pages are a great learning tool. LOTS of smart people on there that already know the system like the back of their hand.
Call the tuning shop and get their opinion. You could also check into the HPTuners forum and get advice from those with similar setups. The factory ECU can be tuned a lot and even has options to run in speed density, if needed. It's only $4-500 to get a full HPTuners setup and then you're free to make any changes you want in the future. A change in displacement is no issue at all, just tweaks to the fuel map. The cam won't be hard to account for unless it's choppy enough for unstable vacuum.
The #1 difference between the aftermarket setups and OEM is the "self-learning", which seems to be what draws people in. There are some options like this with EFI Live and the like, but if you're going to have it tuned anyway, it doesn't matter as much. Plus, if you research these kits, the self-learning doesn't always work out very well for the users, whether software issues or install issues.
I'm just saying that if you already have everything installed, that's pretty good incentive to make it run.
The #1 difference between the aftermarket setups and OEM is the "self-learning", which seems to be what draws people in. There are some options like this with EFI Live and the like, but if you're going to have it tuned anyway, it doesn't matter as much. Plus, if you research these kits, the self-learning doesn't always work out very well for the users, whether software issues or install issues.
I'm just saying that if you already have everything installed, that's pretty good incentive to make it run.
i can see both options working well for me, i’m more concerned with what will make me happy in the end. If i have to take a day to rewire to motor, that’s not too bad…Now the price stings, but i have a buddy that wants to buy my current set up if i do get rid of it. I’ll look into HP, i am slightly familiar will them strictly from tuning my daily driver, but haven’t dove into their programs yet. thanks!
If the Holley is in your budget then it will work great and is nearly infinitely tuneable without any extra cost.
I stock some Terminator X and can get anything you need with both Terminator X or Edelbrock ProFlo4, FAST, etc.
I can answer and questions about those systems.
In addition to being mostly self tuning, it also allows on the fly adjustments, so you can see your changes in real time, while the engine is running, and get immediate feedback.
The LS2 is a unique in that it is the only 24X system with the cam sensor in the front cover. So you may be better off buying the 58x system to get the harness that goes to the front. You may have to repin one of the cam sensor wires. Or you can buy the 24X version and buy a harness extension.
I have an 58x Terminator XMax in stock, but you only really need the X unless you have DBW or need trans control, then you need the Max.
I can have an X drop shipped to you.
The PF4 works great too, and is bluetooth, but is a little limited on tuning compared to the Holley, which you may not need the extra tuning.
I have a tune for a 402 cid LS2 you could start with, made 590 HP with stock heads that I only spent 4 hours very mild porting including head disassembly and reassembly and lapping valves.
But I would need all your engine info.
You can reach me at (262)495-8861
I recommend HPTuners or EFI live when you are using the engine in the original vehicle, or if the engine is bone stock, especially with the trans.
But once you take the engine out of the original vehicle, and especially modify it after, I think it makes sense to go with aftermarket EFI.
I stock some Terminator X and can get anything you need with both Terminator X or Edelbrock ProFlo4, FAST, etc.
I can answer and questions about those systems.
In addition to being mostly self tuning, it also allows on the fly adjustments, so you can see your changes in real time, while the engine is running, and get immediate feedback.
The LS2 is a unique in that it is the only 24X system with the cam sensor in the front cover. So you may be better off buying the 58x system to get the harness that goes to the front. You may have to repin one of the cam sensor wires. Or you can buy the 24X version and buy a harness extension.
I have an 58x Terminator XMax in stock, but you only really need the X unless you have DBW or need trans control, then you need the Max.
I can have an X drop shipped to you.
The PF4 works great too, and is bluetooth, but is a little limited on tuning compared to the Holley, which you may not need the extra tuning.
I have a tune for a 402 cid LS2 you could start with, made 590 HP with stock heads that I only spent 4 hours very mild porting including head disassembly and reassembly and lapping valves.
But I would need all your engine info.
You can reach me at (262)495-8861
I recommend HPTuners or EFI live when you are using the engine in the original vehicle, or if the engine is bone stock, especially with the trans.
But once you take the engine out of the original vehicle, and especially modify it after, I think it makes sense to go with aftermarket EFI.
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thank you very much for all that info! So my “LS2” started life as an LQ4 out of a 2002 silverado. It has the cam sensor up behind the intake. If that matters.
Are you saying there are tunes to load into the holley before initial start up? If so i’d be pretty interested in that as well. I ended up pulling the trigger on the Term-X. Part number: 550-909. (Ev6 injectors).
It is a stroker motor with an after market rotating assembly, heads, etc etc.
Well if you bought the one with the handheld just answer the questions in setup and it should run decent out of the box. Don't guess, make sure it's accurate, especially the injectors, etc. And follow the instructions to a T, no shortcuts.
roger that! i’m pretty anal when it comes to truck stuff so im sure i’ll take my time when set up begins. I have all my engine specs written down. Thank god because I built this motor roughly 3 years ago, injury and life got in the way, but finally trying to get the ol’ girl up and running
So i got everything installed, but I’m having a hard time deciding on what MAP sensor to run. As you know they have the internal map sensor aka vacuum hose option, OR they also have a connector on the harness to run an oem style map sensor…Are there any benefits to either? I have a map sensor already installed, but it’s not listed in their software. So i was going to grab one of the GM map sensors listed in the holley software. Any idea which is “better”?
