abiex

Let me tell you that this is my first V8 engine.
And I want some extra from it, so please tell me if I am totaly wrong!!!

1999 LS1 enigne street car with T56 tranny

Ported heads, intake/exhaust + flow tested
arp head studs
arp main studs
cometic headgaskets
forged pistons 14:1
forged h-beam rods + arp bolts
clevitte bearings
stock balanced cranck
race cam "something"
stock intake valve
stock exhaust valve
springs 0.655 lift COMP Cams #26921-16 or better
aluminum rockers 1.8 ratio
chromoly pushrods
8 x 1600cc inj
weldon 2345 fuelpump
aeromotive fpr
ECU autronic SM4
ingnition autronic CDI500R
bosch twin tower coils
running on E85 fuel

will this make 600whp NA @ 8000rpm ???

Or should I change the compression to 8-8.5:1
and run twin T04S and twin 44mm tial wastegates ???

I know that there is books about this stuff but I cant wait....this drives me crazy
If u find that I need more stuff then please dont hesitate to put on the list,
And yes almost forgot....sorry for my english.


Thanx.

raymond mckinney

iTrader: (4)

No stock crank, ported heads, stock valves, 99' Ls1 engine will make 600 wheel.
You need to restart ur list completely.

2000_SS

iTrader: (24)

agreed.

you're going to need a forged crank, forged rods, forged pistons, aftermarket heads probably with extensive CNC work, a fairly radical cam, and a VERY free flowing intake/exhaust....do some searching around in the Dyno section of this site and see what power people are making with their setups to give you an idea of what you'll need.

01blackz28

iTrader: (8)

i second that. not for nothing but this is your FIRST v8 vehicle and you want 900rwhp ls1? build a forged motor with a direct port and spray the ***** out of it.

abiex

Yes its my first
I have learned by my self to never start low....cause it ends always high (about power)

Ok... how much do you think that i can put down with this setup NA?

v8blazer

iTrader: (2)

If you go ahead and get some aftermarket heads rather than sticking with stock castings I could see you making over 500rwhp(but on the low side) with that kind of compression along with a large cam.

landonew

depending on the cam, and how well the heads flow. Maybe 480rwhp with 14:1 compression and spinning to 8000K. But I doubt it would last much longer than one or two dyno pulls. Should consider going with a 427 or 454 if you want 600 rwhp.

chuntington101

i say go turbo! FI has been done time and time again and there are some grate kit out there. stock cube motros are making gobs and gobs of power these days. and you could run 900rwbhp on pump fuel!!!

just my opinion

Chris.

Stang's Bane

iTrader: (22)

FWIW, 600 rwhp can be made on stock cubes, not stock parts. You can even use ported 243's, but not 241's. It would be useless on the street however.

abiex

usseles on the street??? I dont think so ....I am used to low tq engines

I think I am going to go Turbo LS1.... should make 900whp easy!!!

If I dont rev the engine more than 7000rpm do I still have to change the crank???
consider that all the other parts are changed (forged stuff), asking just about the crank

thanx.

DanO

this thread is pointless..

you need to get a true handle on what 900hp means.. i see way to many people throw numbers around like that without a clue

and if you want it to be reliable.. you better have $$ to do it correctly..

abiex

pointless

The reason that I ask this pointless question is simple...."starvation"
And I wanna know why not to use the oem crank, if u cant explain then please dont decide what is and is not pointless.

900hp is what it is.....

I already know that power is not cheap!!!
But knowledge is king so if u dont have it then please stop


Thanx

gametech

iTrader: (1)

I agree that the thread is pointless. Someone impatient enough to do absolutely NO prior research certainly has no grasp of what they are really asking. Even the simplest few clicks on this site would have revealed the dyno results section, and a few searches and reading would have completely answered your questions.

DanO

ok.. this is the internet.. every joe schmoe comes on here and asks what it takes to get 1000hp

Those that have 1000hp dont need the internet to tell them how..

If you truly are serious, dont ask "how can i make XXXhp" do your research and learn. Lots of fast guys on this site.. (go visit the 9 second and faster drag section) Or just pay someone to build it.

I got nothing against you, but there are thousands of threads that start the exact same way yours has...

here is how i would have phrased the question...

"what are the design limitations to rotational speed and force for a stock crankshaft and how are they addressed by changing to a forged crankshaft"

FYI: https://ls1tech.com/forums/advanced-engineering-tech/396223-what-forum-please-read-before-posting.html

abiex

Sorry!

I wont bother u any more.



Thanx

bboyferal

iTrader: (9)

900 on pump? Not on stock cubes! So forget about stock crank anyway.

krazy4

iTrader: (5)

Its not the torque.

It will have traction problems, it will be loud and probably get you pulled over, it will probably have a hard time idling, it will need race gas, the powerband will be really peaky.

Black_Phantom

If you want streetable 600hp you gotta go big inch like 427ci or 454ci and that's not cheap.
OR go forged rods and pistons with stock crank 370ci, stock 6.0L Iron block + FI. (APS twin Turbo rocks)
If i were you i would go forced Induction (I LOVE TURBO'S AND I CAN'T GET ENOUGH ) Its not cheap though but it's worth every penny.

vaticano

iTrader: (8)

He's not talking pump gas, but E-85. 105 octane. 900 fi would be easy, not cheap but easy.

b00sted

iTrader: (7)

Yep, it's a walk in the park.