91blazer

Ok so I'm putting together a parts list for my 5.3 build. I've been doing nothing but research on anything ls. This site has actually helped out a lot!!! But here is what I have so far.

5.3 iron block

K1 crank http://m.summitracing.com/parts/kot-012fae36258?seid=srese1&gclid=CO6qp5yn-bsCFUjNOgodaUQAWw

K1 rods going with 6.098". http://raybarton.com/parts/index.php/wiseco-k1-chevy-ls-h-beam-rods

Wiseco pistons. http://www.excessiveracing.com/wisecok474m96-ls-seriesvortec53lforgedpistons-22ccflattop3780bore3622stroke927x2250pin.aspx

317 heads. Haven't decided if I want to get used heads or http://texas-speed.com/p-1178-prc-stage-3-60l-cnc-ported-heads.aspx

102mm intake. http://www.asaperformance.net/servlet/the-9992/Fast-102mm-Lsxr-Ls1/Detail

102mm throttle body. http://www.frsport.com/Big-Mouth-102mm-Throttle-Body-w--TPS---IAC-Sensors---FAST-LS-Manifolds_p_221171.html?gclid=CPSrucLN-rsCFU_NOgodWiEAWQ

Going with a custom cam.

Plan on running twin on2 76mm turbos. 44mm trial wastegates. 50mm bov. Air to air intercooler.

Been tring to figure out what fuel rail/injector combo to go with. Any suggestions?

Just curious if I'm on the right path with this build. Open to any comments and criticism.

Thanks. Chad

Edit: plan on starting off with 10psi. But you all know that won't last long so it will be turned up

HexenLord

What power are you looking to make? Its hard to give any sort of suggestions without knowing goals.

Dead set on going twins?
Do you plan on making over 1000whp?
Do you realize the crank you posted is a 58x wheel?

cory32690

with that setup i would assume your shooting for 1000 rwhp or close to..depending on power level and fuel type your going to use then we can select a fuel system...but other than that i like the idea of a max effort 5.3 with twins i think with the -22cc pistons and the 317s you will be a little low on compression but i guess that depends on what you have done to them and how you want it setup in the end if you can get around 9.0:1 on compression it will be a pretty stteet friendly motor and shouldn't be to big of a dog as long as cam and everything else matches setup but someone like martin from tick could tell you how to setup valve train

91blazer

I was thinking around 900hp. But if I can get 1000hp I would be one happy mfer. And I thought that's how many teeth my stock regulator had? Maybe not. I'll check again. Yeah I am pretty set on twins. But when it comes to what type of fuel I'm not sure. I wanted to run pump gas. Because this will be a street car. Tags insureance headlights and taillights. No roll cage or none of that. And compression I'm not sure.
Can't seem.to find a lot on forged 5.3. Most ppl get a jy motor and change top end (cam intake maybe heads).and run the **** out of them. But I was thinking 9:1 compression. That was my next question. What size cc chambers on the 317s would get me there. Or would a different head get me.there without milling. Alsoi would like a couple suggestions on rockers.

Sorry if I'm asking a lot. Just trying to get this plan mapped out before this tax money gets here $$$$$

WheelsUp84z

iTrader: (14)

oh grand.. another one of these posts. Just read around and you'll be surprised how many of these generic questions are answered every time. feel free to read my 5.3 TT build thread as well.

91blazer

yes I know I'm asking questions that a lot of y'all aready know the answer to but this is my first ls build.

My first vehicle was a 1990 s10 blazer 2dr. No motor or trans. I was 15 and in school but instead of going to school I skipped and built my truck. Wasn't nothing to brag about. Just a old school 4.3 with vortec heads and a 700r. But to me it was alsome. After that I meesed with the ford 5.0s and hated them. Then went into imports. Had a 1991 honda accord 2.2 5spd. Blew the motor and ended up swappin in the h22. But I got tired of being fwd and slow as ****. So I'm back to chevy.

I never intended on building a 5.3 til a month ago when my buddy told me he had one forsale for 75$ no heads intake or wire harness. I ended uphepling him pull a trans for his dodge at jy and he gave it to me. I've been doing as much research as possible. Everything from forged internails to intake to lifter trays to front accessory.

My orignal question was fuel. When I research the fast 102 intake ppl say you have to use ls2 rails and injectors. I found fast billet rails that say (ls1 style) so I don't know if that means I need ls1 injectors or what. And the compression I can ask someone at trick flow. But since they asked what I was lookong for compression wise figured id tell them and ask about the chamber size.

Btw I like your tbss. I'm a fan of "grocery getters" going fast. Id love to have a g8 gt. But your tbss is pretty cool. That turboed 427 is gonna haul ***.

LS1NOVA

iTrader: (12)

You will likely need the older 24x crank reluctor.
Compression is your friend. I would shoot for something around 10 to 1.
Twin 0n3 76's are going to be pretty laggy. It'll make power up top though.
Skip the Fast 102 and TB. LS6, LS2, Proflo, any of those. TB over 90mm is way overkill.
Stock crank is ok for what your doing.
80lb Siemen injectors if you're on gas. 160's if E85.
Running at max potential, head gaskets and lifting heads will be the first weakness.
LS9 head gaskets and head stufs.

HexenLord

Shooting for 900 at the flywheel or crank? Those twin 76s are overkill. Go with the smaller 70mm turbos or you'll spend all day trying to spool them.

80 lb injectors will get you there if you have enough fuel pump.

I agree with the above to skip on the fast intake. Use whatever intake you have. Things don't work the same way with boost as they do N/A. Between the cost and the horror stories I've heard, I'd stay away from the fast for a TT build.

BTW, stock crank is good to 1200whp or so. Save yourself the money.

BMF_Racing

iTrader: (6)

x2 they're telling you the truth. Dont waste the money on a fast. Good Luck

cory32690

agreed fast is over kill and u could spend all that money on a nice fuel setup..if ur running pump gas you should be ok with -8an feed and -6an return on fuel line.stock rails can be pushed far if u want a upgrade speed inc sells a nice set for the money 80lb injectors will be enough on pump gas maybe add a meth kit for when in kill mode and i also agree that the 70's will spool faster but i honestly have wanted to see someone with these 76's on a small motor just to see how far it would go..and on the heads i would see what you could do with a stock set of 862s or 706s these have the smallest combustion chamber and will help keep compression up and if you want them to flow good send them to AI or TEA

and keep asking questions if u cant find answers yes a lot of this has been answered but also so many people ask and give bs answers its better to double check

91blazer

just counted the teeth and its for sure 58. I was told this 5.3 is an 06.

10 to 1 sounds alsome. I'll have arp rod and head bolts. Do.I need to change the main cap bolts??

Ok so ditch the fast. Ls6 intake. 90mm throttle body. Does maf need to be 99mm also?

80# with pump gas correct? Can I use stock ls1 rails? Will they flow enough?? Don't want to buy stock rails when they won't cut it.

Also I planned on ls9 head gaskets

Pretty sure this 5.3 came stock with 243s.

Thanks for the help. It was much needed.

91blazer

On the turbos this motor will run the 1/4 mile. So would the 76mm spool to slow?? Or would 70mm.be better.

Thanks.

91blazer

On the fuel pump most everybody does twin 255s. I read somewhere a guy had a single fuel.pump. I wanna say bosotch .but I can't remember how big. And I can't find the forum I read it on or find the fuel pump in google. I would rather have one fuel pump than twins.

HexenLord

Those 76s would spool slow. They should be good for 1400whp or 1600 or so at the crank. If you aren't going to be pushing 4 digits then its overkill. Kinda like the guys on here that run a single billet 88 at 750whp.

Do away with the MAF and convert to a speed density tune.

Twin 255s might have trouble pushing that much power on 80 lb injectors because of how bad the flow drops when you up the pressure. Walbro 400s aren't much more expensive and will do the job fine. They can be had for less than $250 for the pair and are OEM reliable. They are also quiet when ran in tank.

91blazer

Ok. So twin walbro 400s. I'll look those up later tonight. And its going to be professionally tuned forsure. I know nothing about tuning. But I'll look up density tunes also just to get an understanding of what it is.

91blazer

So I really like the proflo intake. Will most likly choose that. And the rails to match.

Looked into E85 and that seems like a good fuel route to take. Will those walbro 400 work for my hp goals with E85?? Also 160# injectors. Does anybody know a brand or link to injectors that will work with proflo intake/rails. And will -8 and -6 return work with E85.
Sorry for the change in directions here. After reading about E85 I decided that's that best option and it cost the same if not less in the long run.

Last question. For now.
With .0024 main bearings and .0026 rod bearing. What's the best oil to keep oil pressure up? And high volume oil pump or high pressure?

Thanks for all the help. It was much needed. As you could tell.

HexenLord

Walbro makes an E85 version of the 400 pump called the 485. If you go the walbro route, grab two of those.

Forcefed86

iTrader: (4)

No one sees an issue with A 10:1 Pump gas motor shooting for 1000hp? Not that i believe any of this will really happen, but why is someone with no experience trying to build a 1000hp motor in the first place? All sounds a little to Fast And Furious to me. If you dont know the answers to the questions your asking you shouldn 't even be attempting it.

Not saying this to be harsh, its just the truth. Take a few steps back and research. If you have never built performance motors in the past youd be light years ahead buying a complete forged long block from one of the sponsors.