ryeguy2006a

iTrader: (27)

Hey guys,

I'm taking a break from picking up a new project, but I'm still keeping up on what's guys are doing now. I'm just curious why there aren't more turbo L83 motors out there? Is it because of the vvt and DI, or is there just not that many people here that post about building them? Seems like people tend to stick with the Gen4 motors for their builds lately.

Let the debate begin haha.

Kawboom

probably all about money. The newer the engine, the more expensive.

pdxmotorhead

Tuning the DFI motors,, still really infant level, little aftermarket injector support. Not a unique problem to GM engines..

Jimbo1367

I’ve seen a few turbo Gen. Vs floating around. They supposedly make real good power.

TrendSetter

I just picked up a project with a DI ecotec and was pretty excited to throw a turbo on and learn to tune it but after reading around for background info, the tuning options are poor, parts support is lacking(especially for ecotecs) and it just has a lower ceiling without extra injectors.
in my case, i was stuck with an e39 ecu which efilive supports but not very well. couldnt even change injector size. hpt has better support but i dont own it and after reading up on getting ahold of it, really wanted to avoid that.
no aftermarket ecus seem to support GDI. link had a GDI offering a few years ago but its no longer on their site so i assume it either didnt work well or didnt sell well.
syvecs seems to have it but thats more weird euro stuff and really expensive.
im not even going to say the M word.
so im yanking the GDI motor in favor of an older port injection one so i can go with a traditional standalone ecu.
GDI is still something id like to try out some day, but right now its kind of a step back for me due to the control side of it all. ive got a lot of projects going on and stacking boxes on boxes on boxes to control more injectors, boost, factory ecu, etc is just not of interest at the moment.

ryeguy2006a

iTrader: (27)

Holley released the Gen5 Terminator X Max a while ago that will support L83, L86 and LT1 motors and thought I would see more builds by now. Plus there is the option to run them on standard ECU's that run 58x/4x sensors but backdating it to port injection.

TrendSetter

holleys gen5 stuff is only termx. they dont have any way to run DI on their higher end ECUs and they dont sell the DI control box separate. from what i was reading, it sounded like its still in its infancy at holley and a lot of stuff wasnt implemented yet or was hard coded and non adjustable. in particular it sounded like they dont control the hp fuel pump yet.
but the fact its out and holley is working on it, is really good for the hobby.

Pro Stock John

iTrader: (34)

Engines cost more as we know, I think that's the primary reason.

Project GatTagO

iTrader: (7)

A couple of years ago, low mileage L83s were going to $1500...Now I see high mileage engines for over $3K....Thanks inflation...

Andrew

bturner032002

whats up fellas new here. Just jumping cause i bought an L83 from a buddy. Im stripping her down and doing all the deletes. Dod delete, Vvt delete as well as the direct injection block off. Also doing the conversion to port injection with the ls7 intake manifold. Bolts right up with adapter kit.

im keeping the stock crankshaft just getting it cleaned up. Getting the stock heads machined and ported and a good turbo cam and race pistons to bring the compression down to 9.8:1.

will do a twin turbo kit not sure on turbo size yet

unknown car/truck to drop it in. Probably the cheaper of the swaps eg 2001 ish v6 mustang, fox body, catfish camaro etc

bturner032002

been having the itch to build an 1/8 mile no prep car and a buddy of mine told me i got a motor sitting in my garage just sitting there and im like an Ls???!! Hes like nah an l83 so i said how much. He said give me $350 i need it gone. Lets goooo 😂

Pro Stock John

iTrader: (34)

Yessss!

ryeguy2006a

iTrader: (27)

BT, that's very similar to what I was planning on doing. I think what's really cool about the Gen5 motors is that you can convert to port injection, but when the DI aftermarket catches up it's a simple swap back. Please start a build thread and post lots of pictures here. Not too much information here about the Gen5 motors.

Jimbo1367

I’d do a Terminator X for DI on it. It’s just unfortunate that the DI Terminators’ cost so much coin.

LilJayV10

iTrader: (39)

I think a lot of it has to do with cost, but that goes with anything newer.

I don't know very much about them, but IIRC correctly, if you want to put even a decent sized cam in them you have to flycut the pistons.

If I did one, I'd keep the DI and add port injection.

NicD

iTrader: (7)

Because tuning DI computers still baffles plenty of people and the fueling path is not cheap. Plenty of options though and you can even delete the DI and just switch to port fueling and plenty of aftermarket computers will do that for you although I would never recommend that unless you are shooting for like 1000+ rwhp.

Jimbo1367

Kust get LT4 injectors. They're out there.

ryeguy2006a

iTrader: (27)

Looks like I will be going down the GenV rabbit hole.

LQ4-E39

iTrader: (7)

Sweet!!! Details? Chassis? Turbo?

ryeguy2006a

iTrader: (27)

1955 Nomad