tchampton

hey guys im needing help on picking a good cam that will work for me I have two t70 turbos and I have ls2 intake and I have stock 862 heads I planned on porting them when I went to put better head gaskets on and arp studs but im planning on running a 3k stall with 3.42 rear gears but right now I have 3.23 im just wondering what cam will work with my turbos and give me good power and acceleration I herd lots of negative about the ls9 cam and ls6 idk what to go with on fi motor

Orr89RocZ

iTrader: (20)

How high you want to spin it? Guys have been having good success with relatively small cams. 212-218 deg at .050, revving to 6500-7000 on stock bottoms.

Depending how much power you want, twin 70's can support 1400 hp on motor in a 5.3. I am near if not over 1200 and think i could get more out of them

If you werent using them that high in hp then i feel they are too big. 60's would better for spool with that tight converter and make 800+ hp easily. I had 60's before at 800-850 hp.

Dont want too much cam in that small motor. Something alittle bigger than stock, but i also dont feel ls9 cam is good for turbos nor is the ls6 but could work for budget. Stock motors do respond well to boost. From ls1 to ls3, cams are similar and do work. Well designed na motor usually makes a good turbo motor if turbine side is not restrictive

tchampton

I wanna make as much hp as I can but I slits want it to be a street strip car I'm fine with what ever rpm rang

tchampton

I also wanna be able to run on pump gas I plan to use 80lb hr injectors I hope that's in the ball park for whst I would need I expected to make around 750-800 but more would be nice to have

Orr89RocZ

iTrader: (20)

I would consult a custom grinder or you can look up posts by stock48 on various boards.

Some are having good results with baby cams. Isky makes a 212/212 on a 112 lsa they call the triple 12. Supposively a very effective cam. Guy goes 8.3's with it at 163.

Also a bigger one 218/218 on a 112 i think that Big Chief uses in his 1000whp 6.0 turbo truck on the show street outlaws. I believe thats the cam.

You dont have to go to big. Its better to let heads and turbos make the power. I'd keep rpms under 6800 for longevity sake. So a mild 21x/21x type cam would work well.

tchampton

Is that 12/12/12 cam good iv never herd of it and do u think it would pull hard with out boost I was thinking 16 psi of boost to like 25 or so idk how reasonable that is

Orr89RocZ

iTrader: (20)

Yeah its a fairly stout combo. My buddy is about to run the 218 version. Dyno charts we have seen show hp to peak in the mid high 5000's range as expected but heads and turbo hold power to over 6500 rpm some to 7500 it seems depending on the setup. Its a very strong curve.
It will drive great without boost. 5.3 is small so you want cam small to keep torque up in lower rpms where you will drive the most. Probably talking only a 350 hp motor naturally aspirated. On pump fuel 9-10 psi should get you near 500 whp maybe more. 700 should be upwards of 16-18 psi? Maybe. Depend on trans. My 401 makes 793 thru a th400 big stall on 17 psi. Other trannies that could be 850-900.

My friends t56 truck 5.3 with a 230/236 cam made 700 on 12 psi with alot of meth injection and i think pump gas. . 560 whp on 9 psi. They can make power with big cams but your turning them hard

tchampton

Well I got a 4l80e and gonna go with the 3k still I have the ls2 intake and my motor is the 05 5.3 with like 40k miles on it I planned on running 3" exhuast al the way bak if I can fit it I'm not that far yet I wanna be able to keep up with my buddy's 92 Camaro with a 408 he's making like 500hp

tchampton

But I wanna me able to win at the drag strip too

DIGGLER

iTrader: (1)

duncan sc? stock 5.3? if so, put a single 76-80ish on it and call it a day.
twin 70's could make 3 times what your buddies car makes. its kinda like saying you want to put a top fuel engine in there to outrun him. lol

Orr89RocZ

iTrader: (20)

S475 works well here. Billet 76-80 wheel even better and support 1200 hp

tchampton

Yeah but we got some 700hp cars around town I wanna beat lol but if I could get 1000 and steel be street legal I'm more then happy to do that

Orr89RocZ

iTrader: (20)

Can you run e85?

Else invest in a big cooler and meth injection. You can get 1000 easily with one of the s476 billet wheels.

Getting up over 800 whp is a concern on stock bottom. You may have a stronger rod version of the 5.3 but my buddy bent rods at 750-800 hp in his older 5.3. You also start to worry alittle bit about heads lifting closer to 800whp+.

700 whp thirdgen is a sickly fast car

tchampton

We have a e85 station here but I don't know anything about it

tchampton

If it does come to blowing up the 5.3 I can get another one I paid 250 for mine and it had everything with it but I'm gonna prob go with that triple 12 cam you mentioned if I can find it if that will work for me I'll be happy

DIGGLER

iTrader: (1)

what do they run at the track?

tchampton

No he have some races here in town on induristal road normally around 1 am when there is. No one out but sometimes at track

tchampton

I cant seem to find the triple 12 cam iv searched stock48 on this site and ls1tech and performance trucks is there another good cam I should look forward that I can find at like summit or somelace like that lol

Orr89RocZ

iTrader: (20)

There are similar grinds. I'll check my catalogs later

tchampton

ok thank you sounds great will I need to change the timing set up ik with the ls9 cam u gotta change the front cover and timing chain etc etc

tchampton

I been looking at comp cams and they have one that's 212/218/114 .522/.529 think this would be a good cam to run I have not had any luck finding one of the triple 12 cams

Orr89RocZ

iTrader: (20)

That comp would work or the other version thats higher lift. XFI rpm high lift 212/218 would be great

Howards 190235-14 could work, 216/224 114 lsa

the isky would be a custom order. the 218/218 112 is 266/266 advertised and .570 lift with stock rockers, 112 lsa 109.5 icl. built on lobes HR-672.
i think triple 12 is lobes HR-673

Jay_rich

iTrader: (4)

I say if you are dead set on Twin 70's PM LIL John on yellowbullet or LS1tech (email.... ljmsjohn @ gmail.com) . He can hook you up with a killer cam. He works with Jose' at forcedinductions.

If It were me I would be looking into a Single S475 or S480 T6 1.10a/r if you wanna be able to make that "1000" number. With the proper cam with some overlap it will get that big Single moving.

Jay

tchampton

Ok sweet well I messaged stock48 last night on YouTube so I'll figure out about the triple 12 cam but I'll look at the other cams you suggested

tchampton

I got ahold of stock48 today I think im gonna buy that cam shaft and orr89rocz u got my interest with the E85 what would I need to do to run it and the big question could I just have a fuel cell to run the e85 out of and use my reg gas tank to run 91 idk if there is a way I could just flip a switch to run one or the other but if there was would the computer adjust its self to run on the e85 and vise versa I like the idea I would be able to get more power but I would like to switch back to reg gas at time for the mpg I plan to run 80lb injectors so I think those are strong enough and I can get more fuel line to bulid a separate system to the fuel filter or something hope you guys could explain it better to me thanks

Orr89RocZ

iTrader: (20)

You could run a separate tank if you had a place to mount it. Nitrous guys run separate 1-3 gallon tanks up front. However for 100% fuel switch over you'd want a split tank cell in the rear atleast 6-10 gallons to make it worth while. You would need an advanced system to run and tune that. Dont believe you can with stock lsx ecm.

If you have stations just run pure e85 but keep an eye on its ethanol mixture. It can vary season to season. You will need dual 255 or dual 340 intank pumps for 800whp. You'll likely need 105-120 ish lb injectors tho. 80's on gas are good to 800+ hp but on e85 its closer to 650-700 i believe. E85 is usually 30% more volume

It may be easier to run a meth inj kit with a 3 gallon reservoir and add 2 big nozzles pre throttlebody. That will give fuel and octane plus cooling on big power. 80's are plenty. Thats likely what i will do and what i'd recommend.

tchampton

Ok cool I'll read up on at and see the best way to do it right now I have a 255 intank pump and a 255 in line and I was just gonna so the same for the other tank since we got that whole in the trunk I was gonna place the tank there

Orr89RocZ

iTrader: (20)

Idk the legality of fuel cells within the hatch area since its nkt separated from drivers cabin, need to check nhra specs.

I would place both 255's in tank with teflon -8 feed -6 or -8 return.

tchampton

Ok il buy an intank pump and run the lines you suggested and the meth would like the washer resivor work or something under the hood

Orr89RocZ

iTrader: (20)

Big reservoir is best but washer bottles can work just keep an eye on its level

tchampton

im just gonna order the kit from snow performance but I got a question I read some stuff that people use washer fluid and methanol and if so im a tech at the local dealership here in Oklahoma so I have access to washer fluid I don't know are ration but we get our solution from Texas I wanna know if I used that and some heet to change the ratio I could use that as meth

Orr89RocZ

iTrader: (20)

You want as much meth as you can get. Only washer fluid worth using is the ultra cold temp -20 deg stuff but even then its not alot. Most just run pure meth.

tchampton

ok and here in town we have the -20 which is 35% meth Im not sure the best place to buy it if a part store cant order it for me we don't have any local speed shops if I drove coulple hours we do

tchampton

I found some online for 28$ a gal but a gal should last a bit right I could set it up to only work under boost right

Orr89RocZ

iTrader: (20)

Yeah usually boost switch activated like a hobbs switch. Only spray when needed probably over 12 psi or so depending on how much power you want to make at whatever boost level you want. You can do 600whp on 8 psi with crapload of meth and high timing, or back it off and make 600 on 11-12 psi with just abit of meth and low timing.

I myself will use it over 15 psi because my intercooler starts to see higher temp rises at that point. At over 20 psi its reaching its design limits and only good for short pulls and cold air temps outside. Meth will bring things back down so i am safe on pump fuel. I do not want to use it as a major fuel source like my friend does because any failure of the pump may result in engine failure if other fail safes dont react fast enough.

tchampton

gotcha so your making 1200 on pump gas?

Orr89RocZ

iTrader: (20)

Give or take. Its 1018 thru a th400 and a 12 bolt on drag radials that grow. High stall typically sees 20-25% loss. So its somewhere in that 1200-1300 range on motor. I know of a 600 hp 406 that hit a 375 shot and made 758 thru similar setup th400 and stall. Theres a lot of loss in a open stall th400

tchampton

Yeah that's amazing numbers to me tho and digger I just saw your post sorry they normally run high 10s and low 11s. I hope to be close to 10 on street slicks

DIGGLER

iTrader: (1)

i would shoot for simplicity. a 76mm on a 5.3 can go 9's pretty easy in a decent car. everything you have will be at its limit with that turbo. any more power than that and you will need to get out your checkbook. and, there is no point in building 7 second power to reach your goal.

tchampton

Yeah I'm a college student so don't have lots of money to spend I just throw what I can at it lol but I'm fine with 11s or 10s but I mostly just wanna have a steer legal car that I can take to the strip and win some times and have fun

tchampton

Hey guys when I swap my oil pan should I drop my pistons out and cut the rings a little iv herd from a few people that it good for boosted cars but I don't wanna take the extra time to do it if I don't need to because I'll have the motor apart porting the heads and putting new head gaskets and arp studs I just wanna make sure I got the basics down before I go spending lot more money

tchampton

this may be a dumb question but im not 100% since ill be turbo for me to use my break boster and make vac will I need a vac pump or will I have enough van from low boost in the vac resvior thing under the finder I just been trying to figure this out and I think I understand how the pcv system needs to be on it

Orr89RocZ

iTrader: (20)

Dont rering it.
Brake booster has check valve for stopping pressure from goin in. At idle and part throttle it fills with vacuum so you still have brakes

tchampton

Ok cool I was just wondering how the whole Manuel boost controller will work just tee in at the vac line to the booster

Orr89RocZ

iTrader: (20)

You could do that

tchampton

ok cool I get free vac line and tees at work but how did you do your down pipe im still trying to plan on how I should do mine I have the hawks mounts I got some turbo headers for a ls1 I should have them tomorrow if I get them ill install them to mock up but I leave back for college Thursday so progress will be slow on the car and any other tips ill run into im still looking for a ls1 oil pan and pick up tube etc

DIGGLER

iTrader: (1)

what kind of college doesnt require the use of proper punctuation?

tchampton

Lol Osuit I just go for my job since I'm a ford tech lol job security

tchampton

I went home over the weekend I got my turbos and intercooler in I did what little I could I am wanting. Comments on if this would be an ok place to mouth the intercooler or any better suggestions

6SIX6

iTrader: (35)

I got to ask. Where did you get the headers and where did you get the intercooler as Ive been looking for one that mounts under the car for awhile.

I will be following your thread for sure as Ive been wanting to boost my car for years now but life keeps getting in the way of that. Ive finally decided to say screw it and just buy the parts as I go so next winter im ready to swap it all in