800 FlyWHP
800 FlyWHP 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.
TECH Senior Member
iTrader: (10)
Joined: Nov 2001
Posts: 8,766
Likes: 0
From: Gainesville, Denton TX
Originally Posted by MIGHTYMOUSE
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.
he says S/C, forged Crank, Rods, and Pistons is all he needs
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.
Originally Posted by Cali99SS
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.
-Geoff
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?
Pouria Savadkouei
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
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. 
TECH Fanatic
Joined: Dec 2002
Posts: 1,084
Likes: 0
From: Bring it........ b*tch
Originally Posted by Cali99SS
Because a good builder is a good builder. And probably a hell of a lot cheaper than I could get it anywhere else.
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.
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.
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.
TECH Enthusiast
Joined: Mar 2003
Posts: 698
Likes: 0
From: PA
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.
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.
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.
"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.
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.
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.
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.
TECH Resident
Joined: Aug 2003
Posts: 948
Likes: 0
From: orlando, florida
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.
Or you could do a water/alky system with 93 octain and you should be alright. That would be pretty streetable IMO.
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.
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.