blackonblacksls

iTrader: (1)

Ok, so here it goes.. i have a 2011 camaro.. ls7 toped 429in motor that runs on e85.. made 560rwhp and 530lb of torque on motor... put in a bigger cam, and bought a 102mm throttle body for it....

but still best case it makes what 580is? 590ish? which doesn't get you very far in a 4000lb car..

So here is the plan.. ALUM 5.3 OUT OF A newer truck... ls6 heads with dual springs.. and a 214/230 ish cam... e85 and meth injection.... and a rear mounted t4 flanged gt4708 turbo that i got from forced induction a while back...

probably going to swap my lg headers for stock manifolds and run half of the stock exhaust piping, then merge it together and run a single 3inch back to the turbo.. then a single 3inch back up to the front...

only thing I have no decided on, and don't have is the intake manifold.. and head gaskets.. can i use the ls9 gasket on the 5.3? everything else is here or on the way.... have all the turbo parts and such already... going to try and start fab this weekend...

allout06

iTrader: (11)

how about a new rotating assembly for the 429, and run a turbo on that..?

JankesGTO

iTrader: (2)

Im not understanding the point of swapping the big motor for the small? You trying to offset the cost of the turbo setup?

94'BLKBRD

iTrader: (76)

Ls6 manifold and LS9 headgaskets, yes they'll fit the 5.3.

abbaskhan

Why not go twin turbo with comp oiless and save The headache of yanking The motor with e85 u can run a decent amount of boost and make a easy 800 if u have enough fuel...smaller motor with turbo will need to be rev'd pretty high and as a DD it wouldnt be as fun without all that torque.

blackonblacksls

iTrader: (1)

it doesn't matter if i turbo the big motor or turbo the small motor.. the 80mm is going give up around 800rwhp or so anyways... but i would rather boost the hell out of a stock 5.3 than boost the hell out of a high end ls7 with a lot of compression...

blackonblacksls

iTrader: (1)

this turbo would be choked on a 600rwhp NA motor anyways... the motor in their now would be better suited for two of these 80mm turbos...

my 330rwhp 2v brought this turbo up into boost pretty easily... and made 600rwhp or so at barely over 10lbs of boost... a cammed ls6 head 5.3 would make more power than that and be pretty happy at 15ish lbs i would think.. And when it breaks i could just throw another one together...

blackonblacksls

iTrader: (1)

ls6 won't work with my 90mm stock throttle body

blackonblacksls

iTrader: (1)

cost has nothing to do with it.. this motor is no suited for a turbo.. and This turbo would do nothing but choke the motor... plus hollow stem valves and such just don't make me comfortable with a lot of boost..

Wicked69

Brother I would put twin PT62/62's on that thing and let it eat. But your right these 5.3's are crazy. They have far exceeded my expectations. My 4000lb chevelle is a daily driver and I run it on E85 with meth injection and NO INTERCOOLER. A $500 engine that went a best of 118mph last week in the 1/8th mile. I drove it to the track, made 5 passes all in the 116-118mph range and drove it home. No tools, no slicks, and jammin to my sound system. Averaged 17 mpg! Your right.... you can't beat them.

blackonblacksls

iTrader: (1)

My car gets 11mpg average on e85. And only goes 104 in the 8th at 4000lbs. Sounds like I would be faster with a 5.3 and a 80mm turbo.

itsslow98

iTrader: (18)

LMFAO at yanking out a 7.0l+ for a 5.3 because he saw some 5.3s on the internet make power. Throw a shot at the current motor or put another stock motor in with a turbo.

a4ls2goat

thats what i said.
sure the 5.3s can make power, but why yank a badass motor.
+1 for adding nitrous to the current motor

blackonblacksls

iTrader: (1)

Why put a stock ls3 in it to make 800, when I can put a 5.3 in it and make 800? Why turbo the current motor, still to just make 800? If I was going to put an ls3 in it it would be forged and with something bigger than an 80mm. Maybe the billet 94mm that's laying around the shop.

I'm going to try the 5.3 **** out. If I can go fast on stock cheap **** then that sounds like a win win.

a4ls2goat

you can ship me the motor thats currently in your car if you dont want it

831jd

iTrader: (3)

If money is not a problem then Buy a cheap f body and drop a 5.3

JWStevens

iTrader: (1)

It sounds like you're comparing apples and oranges. Turbos, nitrous, and blowers aren't a real comparison to the motor you have now if its NA. You could probably be faster with a 4.3 in it if you were gonna spray or boost it to death. Its not the 5.3's that are making the power its the boost.

postal14

iTrader: (8)

You are on the right track and know more about what you are talking about than some people realize. A couple statements in your posts show that to me:

That one is so hard to get people to understand. You are ahead of ninety some percent of the people on forums, including ALOT of guys who have been running turbos for decades.

Good rule of thumb is 15 psi of boost will basically double everything on a good turbo set up. You wont get a full double effect but the better the setup the closer to it you will get. This ties into the following:

If you take a good breathing 5.0L and run 15psi your motor will behave like a good flowing 10L up on boost. This applies to hp AND torque. If you take a crappy flowing 8.0L and run 15psi of boost your motor will behave like a crappy flowing 16L up on boost.

A cammed and good headed 5.3L is going to be a VERY good breathing 5.3L. If you run 15psi of boost it will behave like a VERY good flowing 10.6L. Remember that would apply to both hp and torque. From your statements it sounds to me like you understand these concepts and you are on the right track. You are only wanting 800 hp or so, why risk smoking a several thousand dollar motor when a properly set up $500 motor will surpass your goals.

Now I got a question for you maybe you know the answer because I have never been able to figure it out:

If you where on a forum talking about some make believe block, crank, head, and cam combo that was going to give you a VERY good breathing 10.6L motor.... People would be all over the OMG! that will be a monster!, the I wish I could do its! ect ect... but instead you are going to do the equivalent and do it much cheaper. You are going to save thousands and dollars doing it your way. So why is it when a guy in this scenario gets transitioned from the "I wish I could have that" and the "Sounds awesome, and Good luck" to a guy who has to defend himself like he is a freaking idiot or something...... I will never understand this.

Good Luck, Your logic is solid and youre on the right track. I am always willing to share my knowledge so if theres anything you think I could help you figure out on it just ask.

Jason

compgto

iTrader: (7)

OP, put the crack pipe down before you make a big mistake. Put some big chamber heads on your motor, turbo it, and have a well built brand new Camaro. Or put a 5.3 in it and let people talk **** behind your back for hacking up a brand new car.

abbaskhan

Money not a problem??? Wtf twin turbo the 429 ....or get banned from this site!!!!