help with a Base tune for my LM7, deadhead FS and TSP 2 boost cam.

need help with a base tune for my s10. engine and ecm is out of an 01 suburban (P01) fully built with TBSS intake/ with deadhead fuel system with corvette style regulator and has a TSP stage2 boost cam that i am currently plan on running NA for now. it is mounted up to a 4l80E. need a base tune to get it over to exhaust shop. any help would be greatly appreciated O2 are not currently hooked up

LM7
862 heads
tbss intake with deadhead fuel system and 92mm throttle body

TSP stage 2 boost cam
214/220
.353/.353
.600/.600
112
110

4l80e w/ 2800stall

please and thank you

Where is the tune file?

What injectors?
What MAP sensor?
Is there a MAF sensor still hooked up?

What size fuel pump? Because to silly corvette regulators don't like huge fuel pumps, you'll blow past 58psi if you aren't careful.

sorry I knew i left out some information MAF is still hooked up, and Map sensor is a tbss 1 bar, fuel system is a Quantum hfp 367 58 psi regulator, injectors are ev6 trying to figure out how to input a file but it is a standard 2001 chevy suburban 5.3l stock file is what im starting with

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Originally Posted by Ntense37

sorry I knew i left out some information MAF is still hooked up, and Map sensor is a tbss 1 bar, fuel system is a Quantum hfp 367 58 psi regulator, injectors are ev6 trying to figure out how to input a file but it is a standard 2001 chevy suburban 5.3l stock file is what im starting with

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Need a part number for injectors not the style of electrical connector.

Plan on running NA for now? Seems to me it would make more sense to do a lot of the little things now that can fit a boosted application also. Such as the regulator, injectors, OS, and so on.
If your dead set on making it run for now, you will need to provide part number for the injectors.

Quote:

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Originally Posted by abc

Plan on running NA for now? Seems to me it would make more sense to do a lot of the little things now that can fit a boosted application also. Such as the regulator, injectors, OS, and so on.
If your dead set on making it run for now, you will need to provide part number for the injectors.

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this is, from what we just found out on mine, is a must have no work around. thought we had 42# injectors and turned out to be 29#. make sure u post a pic if youre unsure

12613412#

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Originally Posted by Ntense37

12613412#

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Post your tune file. I'll input the data.

Attachment 156601 i have attached the file thank you

Changes in Fuel>General, Fuel>Transient, and P/N added to Calibration Details notes.

thank you that give me a good start

Well not there yet. The corvette reg/filter is only good for 255lph. It'll burn up that pump you put in. Should have a vacuum reference return system setup anyway for boost.

Here's an example where this happened recently.
https://forum.hptuners.com/showthrea...l=1#post813861
https://forum.hptuners.com/showthrea...l=1#post816765

ok great, even if i planned on running a little nitrous versus boosted? reason i didn't go boosted at the time is because i wanted to run arp head studs instead of the head bolts that i bought from jegs and during covid i wasnt able to locate any or it was a long lead time. what fuel system would you recommend for a boosted setup?

It's not about that. The pump will be under more stress at idle than WOT because the reg will have to return more flow.

As far as setup that depends on if you're going aftermarket rails or keeping the TBSS ones.

ok i see. I will run after market rails. sorry I'm a industrial diesel and natural gas guy and these is my real first ls build

That and a vacuum referenced reg would be best. Reg goes downstream of everything.

Thing is you've selected those injectors, so I'm guessing 8psi boost target? You can run the stock fuel system and not have to worry about studs, either. It's not ideal because the injector data doesn't map to boost, unlike returnless gen IV. You can map VE, but the spark table is where it gets tricky. The reported CylAir during boost won't reflect what's actually going on, so you'll have to think about that when making a spark map. Just need a stock pump in this case.

so i currently have no o2 sensor hooked up, Maf is disconnected and truck wont fire up. it sounds a little better but still nothing i have attached the file if you dont mind taking a look at it to see if i have missed somethingAttachment 156614

Has it ever fired up since the pump was put in?

no it has not, wondering if i had bad coils or something else going on bought hp to delete vats since i put lm7 in to my 02 s10 with stock 01 ecm and had a harness made from current performance

Is it even trying or just turning over?