Cali99SS

iTrader: (1)

A customer of mine builds race motors for a living. He tells me he can build 800 Fly Wheel HP from my LS1. Stock Bore, Stock Stroke, SMOG Legal in CA. This guy knows what he is doing. Been in Hot Rod magazine more than a few times. He hasn't told me the details but, he says S/C, forged Crank, Rods, and Pistons is all he needs. Any opinions? Oh Yeah he also says LS1's are crap.

Billy the Great

iTrader: (2)

says they are crap then offers to build u one? doesnt sound right to me

Cali99SS

iTrader: (1)

He has a right to his opinion. He says he dosn't like them. He says there are better motors to build on than the LS1.

MIGHTYMOUSE

iTrader: (59)

i dont think i have seen an 800hp flywheel n/a ls1 EVER.. not even c5r.. but i just hang out here mostly.. not in the internal section.. you should ask there.

Brandon Boomhauer

iTrader: (10)

mighty did ya miss that?

Cali99SS

iTrader: (1)

My business partner has a '95 chevy 1500. Same guy says with a 96+ fuel injection system he can build 600 FWHP. This is out of a 350 TBI based motor. He has a Dodge 330 that he is almost finished with making 780 RWHP. He owns a '64 vette that does 7.8 quarters. He knows what he is doing.

White_Hawk

iTrader: (3)

My dad can beat up your buddies dad...

-Geoff

Cali99SS

iTrader: (1)

RRRRIIIIGHT????

Pro Stock John

iTrader: (34)

Why get a motor from a guy who talks crap about LS1's, let him stick to SBC and BBC stuff which anyone can make fast. Your first post did not get me excited.

Cali99SS

iTrader: (1)

Because a good builder is a good builder. And probably a hell of a lot cheaper than I could get it anywhere else.

Pro Stock John

iTrader: (34)

Everytime someone tells me LS1's are crap it's usually someone who wants to build a 502ci with a Dominator on it. There are a lot of good builders out there. I don't patronize folks who are patronizing.

JF WS6

Just because someone knows a lot about building BBC/SBC or Mopar race engines doesn't mean he's an LS1 expert. I'd actually venture to say that he isn't at all based on his opinions that "LS1's are crap."

The only reason SBC's, BBC's and other brand big motors are great to build power with is because of how long they've been around and the insane aftermarket support. I'll guarantee you that if the LS1 motor had the same kind of aftermarket support like tall deck blocks, a myriad of different aftermarket race heads and the like he wouldn't be bad mouthing the Gen III engines. Considering that up until recently there hasn't been any aftermarket heads or intakes really these motors perform amazingly.

MIGHTYMOUSE

iTrader: (59)

i thought that s/c meant stock compression. my bad.

now if that s/c means supercharger then i am confident the guy doesnt know what he is talking about getting into..

same type of guys that say 'yea good ole' 350' when i pop the hood and tell me they could make it run if i just took off all that computer crap.

Excal

yeah he sounds like a carb-hog.

Ls1s are "crap". that's why everybody and their momma is stuffing them in whatever they can find INSTEAD of the good ol 350.

It's almost like a doctor who hates "kids"..no matter how good, i wouldn't let him near my baby.

andy98Z

iTrader: (4)

Its possible but just because he knows of something that is possible doesnt mean he can do it. I'f your gonna go with an aftermarket crank, mine as well stroke it. But if not, I think stock crank would work just fine.

Pro Stock John

iTrader: (34)

800 flywheel hp from a stock bore X stroke blown setup is possible for sure but on what gas?

Reckless

iTrader: (9)

"hell yeah...throw a three-quarter race cam in there and make about 1200 hp"

All kidding aside, it could be done I believe, but not with his attitude. And if he hasn't been building LS1s, then he has his work cut out. How many SBC or BBC motors were making 500rwhp (all motor) and driving on the street 5 years after their inception? I doubt the SBC hit 500rwhp until after 10+ years and that was in race only motors. I could prolly say the same for a BBC. These things take time.

Pro Stock John

iTrader: (34)

If your car is an M6, maybe figure ~10% drivetrain loss, so 800fwhp would be 720rwhp.

I think 720rwhp from a 346ci would require:

9:1 346ci
forged pistons
forged rods
1.75 or 1.75>1.875 stepped headers
3" exhaust
Big supercharger (ATI F1, Vortech YS/YSi, Novi 2000)
110 leaded gas
FAST or DFI ECU management system

I don't think that you can do 720rwhp with a 346ci on 104 unleaded but that's just me.

MYTURBOT/A

I don't think that you can do 720rwhp with a 346ci on 104 unleaded but that's just me.[/QUOTE]

Or you could do a water/alky system with 93 octain and you should be alright. That would be pretty streetable IMO.

flynbludream

iTrader: (1)

I would avoid this guy like the plague. First off if he knew much about LS1's he should know that the stock crank would work just fine for those levels. Second of all by saying ls1's are crap, it gives him an out if something screws up then he can just tell you "I told you they were crap".

Did he mention why he thinks they are crap? Crappy aluminum block? Crappy flowing heads? Don't respond well to mods? You might want to ask him what is so crappy about these engines.