Dynamometer Results & Comparisons Dyno Records | Dyno Discussion | Dyno Wars

Highest HP N/A LS1 Motor

Thread Tools
 
Search this Thread
 
Old Dec 25, 2004 | 11:47 PM
  #21  
SidewayzOZ's Avatar
TECH Resident
iTrader: (11)
 
Joined: Nov 2003
Posts: 917
Likes: 0
From: Easley, SC
Default

So does he get a cookie for having the highest hp LS1 motor? Or is he actually going to race it? I just dont see the point of buying a motor that makes the most hp unless youre intent is to race it, and if thats the case shouldnt you shoot for a time rather than a dyno number?
Reply
Old Dec 26, 2004 | 01:19 AM
  #22  
Ben R's Avatar
TECH Junkie
 
Joined: Aug 2002
Posts: 3,726
Likes: 0
From: Fort Collins, CO
Default

Originally Posted by SidewayzOZ
...and if thats the case shouldnt you shoot for a time rather than a dyno number?
100% true. However, for these LS1 motors, a dyno is the best available tool for estimating ET and MPH. A motors ability to make a good peak number and hold that number usually is the determining factor as to how fast it will go.
Reply
Old Dec 26, 2004 | 03:32 AM
  #23  
distortion_69's Avatar
11 Second Club
iTrader: (20)
 
Joined: Jul 2002
Posts: 1,988
Likes: 0
From: Jonesboro, Ga
Default

I think Futral would be your best bet also. If he has an unlimited budget, Allan can do some CRAZY things.

Peace,
Josh
Reply
Old Dec 26, 2004 | 08:36 AM
  #24  
Race Car Driver's Avatar
Thread Starter
11 & 7 Second Clubs
 
Joined: Oct 2004
Posts: 1,299
Likes: 0
From: Motorhome, Freeways, Truckstops, Pits
Default

Originally Posted by SidewayzOZ
is he actually going to race it? shouldnt you shoot for a time rather than a dyno number?
yes, he's going to race it and I think we can all agree that the highest hp motor should also be the quickest.

And he also knows he can buy a 900+ hp SBC for around $15,000, so I'm sure that is also part of his thinking in terms of prices.

Last edited by bickelfirebird; Dec 26, 2004 at 08:47 AM.
Reply
Old Dec 26, 2004 | 10:05 AM
  #25  
slow trap's Avatar
TECH Addict
iTrader: (22)
 
Joined: Sep 2004
Posts: 2,639
Likes: 0
From: tennessee
Default

i'm sure a 900+ hp ls1 would be way more than 15 grand.if he wants the highest hp sb ,sonny leonard builds some huge na hp engines.otherwise judson at sam or alan at futural for the ls1 build.
Reply
Old Dec 26, 2004 | 10:30 AM
  #26  
Ben R's Avatar
TECH Junkie
 
Joined: Aug 2002
Posts: 3,726
Likes: 0
From: Fort Collins, CO
Default

A 900+HP LSX motor is going to require C5-R heads.
Reply
Old Dec 26, 2004 | 11:19 AM
  #27  
Race Car Driver's Avatar
Thread Starter
11 & 7 Second Clubs
 
Joined: Oct 2004
Posts: 1,299
Likes: 0
From: Motorhome, Freeways, Truckstops, Pits
Default

Originally Posted by KingCrapBox
A 900+HP LSX motor is going to require C5-R heads.
You've kinda gotten back to my first point. No one has ever built a 900 hp n/a LS1 motor and it is probably not possible, and no one has ever built a 900 hp n/a C5R motor and even it might not be possible. How about 800 fwhp?
Reply
Old Dec 26, 2004 | 12:12 PM
  #28  
gator's 99TA's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: Nov 2001
Posts: 9,971
Likes: 2
From: Tampa Bay
Default

i would go see alan futral. for my buildup i sent my combo to him. i think 750-800 flywheel hp is possible with enough money. i think it will take 25K dollars +++ in the motor alone. probably more.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Dec 26, 2004 | 03:25 PM
  #29  
Mr Powell's Avatar
8 Second Club
iTrader: (1)
 
Joined: Nov 2001
Posts: 10,121
Likes: 0
From: Friendswood
Default

Originally Posted by bickelfirebird
You've kinda gotten back to my first point. No one has ever built a 900 hp n/a LS1 motor and it is probably not possible, and no one has ever built a 900 hp n/a C5R motor and even it might not be possible. How about 800 fwhp?
800 can be done with LS6 heads pretty easily. I would guess that 875 would be the limit for an LS6 headed motor.

I'd be willing to bet that a C5R headed motor could get 950 without too many complications.

-KCB
Reply
Old Dec 26, 2004 | 09:43 PM
  #30  
SidewayzOZ's Avatar
TECH Resident
iTrader: (11)
 
Joined: Nov 2003
Posts: 917
Likes: 0
From: Easley, SC
Default

Originally Posted by bickelfirebird
yes, he's going to race it and I think we can all agree that the highest hp motor should also be the quickest.

And he also knows he can buy a 900+ hp SBC for around $15,000, so I'm sure that is also part of his thinking in terms of prices.
Totally depends on the entire setup, but you know that. I understand what you're saying now. Didn't mean to sound like a jerk with my original post, sorry about that Can't go wrong with Futral if he decides on an LS1.
Reply
Old Dec 27, 2004 | 04:24 AM
  #31  
Blktie8's Avatar
TECH Regular
iTrader: (1)
 
Joined: Nov 2002
Posts: 402
Likes: 0
From: Howell Mi.
Default

Who's SAM?
Reply
Old Dec 27, 2004 | 09:53 AM
  #32  
Race Car Driver's Avatar
Thread Starter
11 & 7 Second Clubs
 
Joined: Oct 2004
Posts: 1,299
Likes: 0
From: Motorhome, Freeways, Truckstops, Pits
Default

Originally Posted by KingCrapBox
It's also an oxidizer, not a fuel.
He is not a nos guy.
Reply
Old Dec 27, 2004 | 09:55 AM
  #33  
Race Car Driver's Avatar
Thread Starter
11 & 7 Second Clubs
 
Joined: Oct 2004
Posts: 1,299
Likes: 0
From: Motorhome, Freeways, Truckstops, Pits
Default

Originally Posted by Blktie8
Who's SAM?
School of Automotive Machinists (Houston)
Reply
Old Dec 27, 2004 | 04:21 PM
  #34  
Blktie8's Avatar
TECH Regular
iTrader: (1)
 
Joined: Nov 2002
Posts: 402
Likes: 0
From: Howell Mi.
Default

Originally Posted by bickelfirebird
School of Automotive Machinists (Houston)
Thanks I'll look them up
John blktie8
Reply
Old Dec 28, 2004 | 12:25 AM
  #35  
LTLHOMER's Avatar
8 Second Club
iTrader: (10)
 
Joined: Jan 2004
Posts: 1,522
Likes: 0
From: Metro Detroit
Default

Originally Posted by bickelfirebird
yes, he's going to race it and I think we can all agree that the highest hp motor should also be the quickest.

And he also knows he can buy a 900+ hp SBC for around $15,000, so I'm sure that is also part of his thinking in terms of prices.
900+ hp n/a sbc for 15 grand? Where at? That sounds like a killer deal.
Reply
Old Dec 28, 2004 | 12:30 AM
  #36  
Ben R's Avatar
TECH Junkie
 
Joined: Aug 2002
Posts: 3,726
Likes: 0
From: Fort Collins, CO
Default

15K would be pushing it, but if you're good at finding deals you could put together a 900HP SBC for 18K.
Reply
Old Dec 28, 2004 | 12:33 AM
  #37  
LTLHOMER's Avatar
8 Second Club
iTrader: (10)
 
Joined: Jan 2004
Posts: 1,522
Likes: 0
From: Metro Detroit
Default

Shafiroff's sportman motors are pretty good. 810hp for 12 grand but then you gotta add the carb, distributor, etc and you're up to around 15 grand. And that's still short 90+ hp.
Reply
Old Dec 28, 2004 | 12:42 AM
  #38  
badjuju342's Avatar
Deranged Rat Fink
iTrader: (3)
 
Joined: Jun 2004
Posts: 4,495
Likes: 1
From: Right here at my laptop, DUH!
Default

I believe Magnus on here has the E/T record for a N/A motor at the moment, does he not?
Reply
Old Dec 28, 2004 | 02:06 AM
  #39  
JZ'sTA's Avatar
Banned
iTrader: (23)
 
Joined: Jan 2004
Posts: 3,126
Likes: 2
From: Ft. Myers Fl
Default

I know fear the ls1 made 588 with his 408 built by Allen Futural.
This is RWHP and is through a Turbo 400, 5000 stall, 30" slicks, huge driveshaft, 12 bolt, 4.30 gears (Not positive could be a 4.54 gear) etc.
That is probally good for 750 flywheel HP.

Go a little bigger in cube's with more bore and you could achieve 800+.
He also run mid 9's NA.
This isn't gonna be cheep. Probally 10G's for the shortblcok alone.
4 G's for the heads.
2 thousand in inake, TB, Cam, Pushrods etc.
Another 1000 for misc stuff.
Around 18,000 is I had to guess total, and that isn't adding Mucho $$$$ for better rods, or better pistons.
Good luck
Reply
Old Dec 28, 2004 | 09:12 AM
  #40  
Race Car Driver's Avatar
Thread Starter
11 & 7 Second Clubs
 
Joined: Oct 2004
Posts: 1,299
Likes: 0
From: Motorhome, Freeways, Truckstops, Pits
Default

I'm thinking that $20k would come close to getting it done. But I see that none of the shops have commented on this post, which I find interesting.

In terms of the price for a 900 hp sbc, I don't think you would have much trouble finding a small shop to build one for around $15,000. One of the intersting points here is that the best builders seem to prefer smaller cid motors (383-408) on the highest hp sbc. BTW, Patterson can make over 800 hp from their 316 cid sbc!
Reply



All times are GMT -5. The time now is 05:21 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE