Spare parts 5.3 build tuning questions.

[zbinks88]

Hey all, new to the tuning world with HPTuners. Ive only ever dabbled in Holly terminators or hondata/ktuned for civics. This is my first personal LS build and experience with HPTuners. I'll get right to it then...

Full build is nicknamed "spare parts". everything done was off one of my shop shelves, the junkyard or someone else's spare shit sitting around their garage.
5.3 lc9 block, stock rods and pistons. 243 heads, no machine work just BTR springs and valves. Cathedral Port intake from a 2006? i believe with stock injectors. Patriot shorty headers, no cats, full 2.5 exhaust to x pipe to 2-1 muffler. dod/afm deleted. And the funny part, 211/230 cam from an lsx(it was brand new with 0 miles and i got it for pennies on the dollar, so why the hell not). i know why the hell not but here i am.

i built this motor with intentions of acquiring an LSA super charger for it, but my daily driver decided to play games so i had to get this one running while i rebuild my passat. seeing as the motor was complete and in the truck, i shipped my e67 out and had it flashed. chassis is a 2008 colorado. e67 is flashed to a 2009 colorado 5.3 base. previously had the motor running on an e67 from a 2008 saab 9-7x. with the colorado base, she wouldnt run so i changed the map/maf tables to the ones from the saab tune. a few small adjustments and shes been purring like a kitten. i have about 600 miles of drive time on the motor but im averaging 12 miles to the gallon highway. i understand my cam is not the right choice to run n/a but it is what it is and i believe i should still be able to dial it in to achieve a bit better fuel mileage when cruising highway. im very green to the tuning world of LS base motors. I understand enough that ive gotten this far with it. I will attach my data log from yesterday mornings drive. theres a long spot of idle in the first 15 minutes of it from when i ran into the gas station for some coffee and smokes, so skip over that if reviewing. i will also attach my current tune to this.

im pretty sure my mass air flow tables are wrong which could be causing my bad fuel consumption. also im looking to advance my ignition timing a coupe degrees to make up for the cam thats in her but im hesitant to do so without proper guidance. if anyone could review my data and possibly point me in the right direction id very much appreciate it. ill answer any and all questions needed to push this along. thank you in advance if you took the time to read this or check over my files.


it will not allow me to upload my data log and i dont understand why.

[edcmat-l1]

First thing you need to do is figure out exactly what injectors you have and make sure the correct data is entered for them. "2006 stock injectors" is not specific enough. When in doubt, buy some real injectors with real data.

[zbinks88]

First thing you need to do is figure out exactly what injectors you have and make sure the correct data is entered for them. "2006 stock injectors" is not specific enough. When in doubt, buy some real injectors with real data.

My bad, I skipped over my notes when I was typing that and completely spaced. I?m running flex fuel injectors, part number 12594512. Hope that helps.

[horsepowerguru427]

My bad, I skipped over my notes when I was typing that and completely spaced. I?m running flex fuel injectors, part number 12594512. Hope that helps.

https://www.hptuners.com/my-account/tunerepository/? One of those should be the correct data. injector engines.jpg

[Alvin]

I would drop the idea of a LSA on a cathedral port. The adapter plates are nothing but trouble. They have bad cold stumbles over fuel puddling in the plate. Warm it can be covered up by making it run too rich.. but it will still have the problem cold.

[zbinks88]

https://www.hptuners.com/my-account/tunerepository/? One of those should be the correct data. injector engines.jpg

so i believe most of those tunes are gen3. i found a gen4 tune and referenced it, seems like my injector scaling is very close to what it needs to be, if anything running a bit lean. according to my data logs theyre typically around 31lbs. ive never gone WOT with this build yet so i dont know if ive hit the 36lb peak at all. so at this point i dont believe its my injectors causing my over fueling issue and possibly my maf and map tables along with my ignition timing. im going to check over a few more gen4 tune references and move on from there.

[zbinks88]

I would drop the idea of a LSA on a cathedral port. The adapter plates are nothing but trouble. They have bad cold stumbles over fuel puddling in the plate. Warm it can be covered up by making it run too rich.. but it will still have the problem cold.

im about to drop the entire cam im running and buy something with less duration. the 211/230 does run, but i know ill never make power with it. the goal wasn't a high hp motor but more of a reliable daily that i can dog on if i really wanted. i need to swap my radiator, so im going to source a cam to do that when i pull the rad out since it would have to be pulled to do a cam swap anyway. i just dont have the funds for a cam at the moment. so ill keep tweaking my current tune to get better fuel mileage while driving till then. im just very green with hptuners and all the tables i have to modify.

as far as the lsa goes, it was the initial plan. or i could fork out some money and buy a whipple. the more i think about it though, the more i just want reliability over power like i had just typed out. my normal year round daily is a 13:1 vw passat. shes more then peppy enough to meet my needs for going fast and theres always my garage civic(an on going decade long high boost project).

[horsepowerguru427]

so i believe most of those tunes are gen3. i found a gen4 tune and referenced it, seems like my injector scaling is very close to what it needs to be, if anything running a bit lean. according to my data logs theyre typically around 31lbs. ive never gone WOT with this build yet so i dont know if ive hit the 36lb peak at all. so at this point i dont believe its my injectors causing my over fueling issue and possibly my maf and map tables along with my ignition timing. im going to check over a few more gen4 tune references and move on from there.

You posted this injector num.jpg for the injectors you were using. I posted this WITH YOUR NUMBER HIGHLIGHTED!injector engines highlight.jpg a quick google search on your own wouldve shown you an lmg lmg screen.jpg or an LC9 lc9 screen.jpg are actually GEN4 engines. so then you could go to the repository and simply search for either engine! So thanks for trying to correct me on that, it looks like i just dont know what im talking about compared to you.

[zbinks88]

You posted this injector num.jpg for the injectors you were using. I posted this WITH YOUR NUMBER HIGHLIGHTED!injector engines highlight.jpg a quick google search on your own wouldve shown you an lmg lmg screen.jpg or an LC9 lc9 screen.jpg are actually GEN4 engines. so then you could go to the repository and simply search for either engine! So thanks for trying to correct me on that, it looks like i just dont know what im talking about compared to you.

well the end of that was rather rude. why do people take offense when a conversation is just being held. IM NEW TO THIS AND TRYING TO UNDERSTAND. i didnt try to correct you on anything, read my reply again and nothing about it is even close to that claim. i literally hate the internet because of shit like that.

Out of every tune ive pulled from the repository, the scaling has not matched what is in my tune and i dont know how to go about changing the entire scaling. if i multiply my current point by 1.02 i can get close to 36lbs at 58psi. i just havent flashed that modification into my pcm yet because im still trying to understand the scaling difference.

[Lakegoat]

I am not sure what you mean by changing scaling. All you need to do is get the correct injector data from one of the tunes recommended above. In your tune, click Engine---Fuel---Under Injector control, click Flow rate vs Press---make sure this is the same as the correct injector data from the other tune. Under Limits, click Min Injector Pulse, make sure that is correct. Check your Rail Pressures. Under Offset, click Offset vs Press vs IGNV. Under Desoot mode, Enrich Desoot---Disable. Then get your MAF and VE tables dialed in and it will run a lot better, hopefully. You can't just go multiplying things to get a result. Your spark tables need some work, look at the above mentioned tune.
Your data probably wouldn't load because the file was too big. Try a shorter scan and post it---after you correct the inj data.