LS325ci

iTrader: (3)

This is mostly for those on a budget and looking for cheap parts to use.
heres what ive used and had good success.
This car is now sold since i have another project i want to finish but it ran strong for 10.5k miles 2 years of daily driven use. and sold as still running strong.

excuse the wavy graph the ve table was being adjusted on the fly since this was actually suppose to be a baseline dyno only before i go into tuning and start upping the boost (but ended selling it).

pretty rich afr and 15* timing
17psi methanol 50/50 injection. 91 oct
so could easily be more with more fiddle time for sure.


mod list.
100% stock 5.3(unopened) besides cams and valve springs.
I was experience valve float at higher pressure(so this is definitely a must).
cams I added for fun.

turbo piping is just home made from truck manifold and fbody monifold(a/c retaining) front mounted.

turbo is on3 76mm .96 a/r
opened and cleaned/retightened bolts


ebay 38mm tial replica wg vband version
ebay hks ssqv replica
both opened and cleaned/retightened bolts
31x12x4" cx intercooler and ebay intercooler pipes

boost leak tested to 35psi.

very satisfied with results.

I do want to emphasize for those wanting to try ebay stuff to ALWAYS open and clean the part before use and retighten the bolts.

in case of turbo I also always disconnected the oil drain and run oil throught it to remove any possible shavings. spend the extra quart or two to flush it.

80/TA/LT1

iTrader: (2)

Thank you for this valuable post, makes me feel more confident in my Ebay build, people like u, denmah, and numerous others have been very helpful over the years and it's appreciated

jmilz28

iTrader: (13)

Please stop saying "cams", LS engines only have one. What cam did you use?

LS325ci

iTrader: (3)

Your welcome. Ya with ebay build just look around first before buying. You can actually fine some that have pretty good reputation.
what set up are you running?


didnt know somebody on here was actually neat picky about wording. lol

anyways tick 5.3/4.8 stage 3 turbo cam
^ there happy

Jimbo1367

cams, cams CAMS

ddnspider

iTrader: (26)

holy valve float!!! good numbers though.

gtotoocool1

iTrader: (6)

what size was the turbine on that?

LS325ci

iTrader: (3)

its the on3 76mm that is being sold on ebay for like 350 shipped.

Cold Side:

Compressor Wheel 76mm
.80 a/r
4” Inlet and 2.5” Compressor Outlet
Inducer- 76.71mm
Exducer- 102.36mm


Exhaust Side:

Exhaust Housing T-4 Flange
.96 ar Exhaust Housing
3.0" Vband outlet
Inducer- 74.5mm
Exducer- 65mm

80/TA/LT1

iTrader: (2)

im running the standard gt 45 denmah kit from vs racing, truck manis, just finished pac 1218 install, otherwise unopened just like you. Should be hittin the dyno soon. On a base tune right now, havent been in boost, just a little positive pressure and i'm already liking it, wants to move out for sure....

LS325ci

iTrader: (3)

yea make sure spend a lot of time tuning the partial throttle,
it made the car feel like a new beast after the partial throttle was dialed in. The transition felt so smooth after and felt like it did away with a lot of the lags.


what cam are you running?
Im definitely a believer of cams now vs stock lol

RealQuick

iTrader: (14)

What air filter you running?

LS325ci

iTrader: (3)

non.

if i were too i would get those long filter.
I always just get the ones with the most surface area that would fit.


Nowadays though I just run a screen, no problem. so far 6+ years on different setup all daily .

80/TA/LT1

iTrader: (2)

stock for now, on a budget

80/TA/LT1

iTrader: (2)

Hey ls, what fuel system are you running?

LS325ci

iTrader: (3)

stock everything besides 60# and aem 320lph
80# recomended its right around 90-95 idc from 5.5k-6kk

when i rev it to 6500 during the dyno(which i dont do on the street) it was at 100%idc

80/TA/LT1

iTrader: (2)

ok thx, I've got 60 lbers and a racetronix 255 and Hotwire kit, just trying to get a gauge. I'm also running an adj boost reference regulator. Should be close but I think il get it done for 500 / 550 hp, no?

LS325ci

iTrader: (3)

im not familiar with racetronix actual flow. BUT ive used walbro 255 before on another setup. and it flowed 530whp no problem.

injectors will be fine.

80/TA/LT1

iTrader: (2)

cool, thank you for everything man, much appreciated. once my car is sorted and dyno'd, I'm gonna reciprocate and do a similar thread with my ebay parts and results for other "ebay builders"