LT1 from Square one

[Bent72]

Back story:
I come from a background of drag racing and off-road. Been able to play with plenty of toys under the guise of each, including several TBI conversions and also aftermarket EFI

One of the victims we had during that period was a 1994 LT1 Camaro. The block/heads/manifolds remained stock. 52mm throttle body, MAF sensor, CAI, smog delete. Everything Hotchkiss under the rear and subframe connectors, 2800 stall from PTC and a 4.56 gear. Used the old hypertech handheld. Car picked up 2 seconds at the drag strip

Since the first wife got that one, I acquired another in 2008 with only 28k on it. To this car not much has changed, K&N panel filter in the factory box, cat delete, and a MAF sensor that made it pig rich and surge at idle (so it’s never been used)

Finally have a few kids moving out and more time to mess with it. Now only has 47k on it. I’ll be looking to sort out that MAF and retune it. Long term I’ll get a CAI and throttle body, but it won’t get the treatment the other did, just a cruiser

Thanks for reading
Bent

[WASyL]

get stock MAF, upload stock tune via EEhack/Flashhack form Sevo and You are good to go.

[Bent72]

get stock MAF, upload stock tune via EEhack/Flashhack form Sevo and You are good to go.

I do have the factory MAF still. Actually I have 2. I was going to put the stock sensor in with the bigger ends off the expensive one.

Been looking at those files also, thank you

[LeMarky Dissod]

I was going to put the stock MAF sensor in with the bigger ends off the expensive one.

Since the OEM F-car MAF sensor [and its OEM housing] can handle at least 400 horse, the 'bigger ends off the expensive one' will need tuning just to perform like OEM, and will probably not release any performance improvement.

Unless this engine is equipped with at least all the basic bolt-on mods, plus headers, 1.6 roller rockers, and a ported intake manifold, OEM F-car / Y-car MAF sensor & housing works best.

[steveo]

i'll play the devil's advocate. just run speed density like you're doing. with a proper tune developed with the tools that are available for that engine these days it'll be every bit as good as running a maf. do you really want to trust a hot wire maf sensor that's 25+ years old anyway? those things can be pretty sketchy when they get that old.

[Bent72]

Good input everyone! I’m definitely still in the research and read phase, including learning all I can about Tunerpro and the bevy of bin files located on this site for just that purpose. I’ll keep everyone updated as things progress

Right now sorting out some of those pesky ABS and Air Bag lights
Last week put on some new tires and did brakes

[Bent72]

i'll play the devil's advocate. just run speed density like you're doing. with a proper tune developed with the tools that are available for that engine these days it'll be every bit as good as running a maf. do you really want to trust a hot wire maf sensor that's 25+ years old anyway? those things can be pretty sketchy when they get that old.

I've been reading through a bunch of the instructional write-ups on the Moates site

How difficult is it to tune the speed-density portion of this for someone that lives at altitude?
One of my concerns on that is the 4000-11k feet portion of the program where I live

[WASyL]

i'll play the devil's advocate. just run speed density like you're doing. with a proper tune developed with the tools that are available for that engine these days it'll be every bit as good as running a maf. do you really want to trust a hot wire maf sensor that's 25+ years old anyway? those things can be pretty sketchy when they get that old.

true but it takes some time to set SD propperly (only with WB and tons of logging) for mileage and compensate for lack of accel enrichment in thse PCM's. as You said in one of my threads SD mode is only backup for MAF mode.