Is 700HP N/A possible?
02-17-2009, 09:35 PM
#1
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Is 700HP N/A possible? Looking to do a N/A build, just curious about some opinions from you guys.
LSX block
4.125 bore X 4.000 stroke
Warhawk LS7X heads
GMPP LS7 carb intake
Solid roller-TBD
Compression-TBD
Here's the kicker, it's going to use the GM distributor front cover and will be carburated, 1000cfm 4150 style or 1050 Dominator. The car is a early Firebird and will not be street driven, strip only. Car is fully caged, ladder bar/coil over rear, trans will be Powerglide. Budget is in the $15-18K range, not afraid to use good parts. The guy it's for want's a new engine and the ability to use a distributor and carb sold him on a LS-style engine. Fuel injection is not an option.
Please give some opinions, all options are open as this is just in the planning stages. Thanks.
LSX block
4.125 bore X 4.000 stroke
Warhawk LS7X heads
GMPP LS7 carb intake
Solid roller-TBD
Compression-TBD
Here's the kicker, it's going to use the GM distributor front cover and will be carburated, 1000cfm 4150 style or 1050 Dominator. The car is a early Firebird and will not be street driven, strip only. Car is fully caged, ladder bar/coil over rear, trans will be Powerglide. Budget is in the $15-18K range, not afraid to use good parts. The guy it's for want's a new engine and the ability to use a distributor and carb sold him on a LS-style engine. Fuel injection is not an option.
Please give some opinions, all options are open as this is just in the planning stages. Thanks.
02-17-2009, 09:51 PM
#2
Looking to do a N/A build, just curious about some opinions from you guys.
LSX block
4.125 bore X 4.000 stroke
Warhawk LS7X heads
GMPP LS7 carb intake
Solid roller-TBD
Compression-TBD
Here's the kicker, it's going to use the GM distributor front cover and will be carburated, 1000cfm 4150 style or 1050 Dominator. The car is a early Firebird and will not be street driven, strip only. Car is fully caged, ladder bar/coil over rear, trans will be Powerglide. Budget is in the $15-18K range, not afraid to use good parts. The guy it's for want's a new engine and the ability to use a distributor and carb sold him on a LS-style engine. Fuel injection is not an option.
Please give some opinions, all options are open as this is just in the planning stages. Thanks.
LSX block
4.125 bore X 4.000 stroke
Warhawk LS7X heads
GMPP LS7 carb intake
Solid roller-TBD
Compression-TBD
Here's the kicker, it's going to use the GM distributor front cover and will be carburated, 1000cfm 4150 style or 1050 Dominator. The car is a early Firebird and will not be street driven, strip only. Car is fully caged, ladder bar/coil over rear, trans will be Powerglide. Budget is in the $15-18K range, not afraid to use good parts. The guy it's for want's a new engine and the ability to use a distributor and carb sold him on a LS-style engine. Fuel injection is not an option.
Please give some opinions, all options are open as this is just in the planning stages. Thanks.
Pump gas?
IMO....
I'd have to say no way 700 RWHP.
02-17-2009, 10:18 PM
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02-17-2009, 10:23 PM
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Yes 700hp is doable. I have right at 700 at the crank once you factor the drivetrain loss. 700rwhp is anouther thing though. I'm not sure about the dist/carb setup and if it'll get you there. I talked it over a little with Ron @ Vengeance and he thinks we could do 700rwhp on 100oct Street Blaze. The best way to find out is build it and see. Hope you have fun with it....!
02-17-2009, 10:43 PM
#8
With a manual trans, 700 rwhp is absolutely doable, I know what we run would make 600 easy thru a manual trans. Its absolutely possible to make another 100-150 hp with more compression and some other things over that, is what I meant by absolutely doable.
The other part of that, is I wouldnt use that block, intake, heads, or crank
02-17-2009, 10:48 PM
#9
Id expect you could make something like 950+ fwhp with a full out build with the right people on it. Not an overnight project though for sure 
The parting line on price will be the rpm range and necessity of a dry sump. Difference between a 7800 rpm motor and 9800 rpm motor is lot of cash for oiling system and valvetrain, and somethign like 100+ hp Id throw out
The parting line on price will be the rpm range and necessity of a dry sump. Difference between a 7800 rpm motor and 9800 rpm motor is lot of cash for oiling system and valvetrain, and somethign like 100+ hp Id throw out
02-17-2009, 10:49 PM
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Ignition will be all MSD, billet distributor with a 7-series box. The motor this guy's got now is a 1st-gen small block, about 525HP, figure he'd be impressed with 700 for the new bullet.
How about a different head than the Warhawk? What's your thoughts on the Lingenfelter CNC ported L92's? Could they keep up (their graph shows 358cfm @ .650 on the intake on a 4.125 bore)?
How about a different head than the Warhawk? What's your thoughts on the Lingenfelter CNC ported L92's? Could they keep up (their graph shows 358cfm @ .650 on the intake on a 4.125 bore)?
02-17-2009, 11:02 PM
#11
Ignition will be all MSD, billet distributor with a 7-series box. The motor this guy's got now is a 1st-gen small block, about 525HP, figure he'd be impressed with 700 for the new bullet.
How about a different head than the Warhawk? What's your thoughts on the Lingenfelter CNC ported L92's? Could they keep up (their graph shows 358cfm @ .650 on the intake on a 4.125 bore)?
How about a different head than the Warhawk? What's your thoughts on the Lingenfelter CNC ported L92's? Could they keep up (their graph shows 358cfm @ .650 on the intake on a 4.125 bore)?
How about ported LS7 heads, they flow over 400cfm and some porters are getting in the 260's on exhaust flow. Perfect for that bore size. That with the new LS carb style intake by Performance Inductions, 13:1 cr, hyd cam, and 1 7/8" LT's....there's your 700 FWHP through the Powerglide, probably more. Done and under $15K. Get a resleeved LS2 block. And not so radical on the cam either.
Wanna make a ton more power, get an ITB intake.
02-18-2009, 05:10 AM
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I'd be dissappointed if I built a solid roller race motor that didn't make 700+FWHP. See my sig. We build these all the time. PM me if you want us to build it.
02-18-2009, 07:33 AM
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Yep, not a problem.
Thompson built an LS7
Upped the compression 2 points
Changed the cam
Installed 850 Carb on GMPP LS7 4 Barrel Intake
Ran the MSD 6012 Ignition box
Made just over 700 at the crank
Robin
Thompson built an LS7
Upped the compression 2 points
Changed the cam
Installed 850 Carb on GMPP LS7 4 Barrel Intake
Ran the MSD 6012 Ignition box
Made just over 700 at the crank
Robin
02-18-2009, 07:45 AM
#17
Yes 700hp is doable. I have right at 700 at the crank once you factor the drivetrain loss. 700rwhp is anouther thing though. I'm not sure about the dist/carb setup and if it'll get you there. I talked it over a little with Ron @ Vengeance and he thinks we could do 700rwhp on 100oct Street Blaze. The best way to find out is build it and see. Hope you have fun with it....!
02-18-2009, 09:05 AM
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My combo is a 12:1, solid roller, 1050 Dominator, 414" and I am hoping for 750 FWHP, but think I will be in teh 700-725 FWHP range. My running tally is right @ $12K from carb to pan, mostly new parts. Only used parts I picked up were covers (VC, Oil Pan, Front and rear covers, valley cover, etc...)
I have, new:
$800 (with shipping) 6.0 block
$800 crank
$500 rods
$1800 sheetmetal intake
$365 balancer
$170 Timing Chain
$325 MSD 6010
$700 Carb (1050 Dominator)
$1200 shaft rockers
@ $1000 in my L92 heads...porting and bare castings.
which is:
@ $7500
My machine shop, I am in them for $3500 right now (including pistons,cam and hardware and lifters that they are getting for me). I think it will be another $1000 or so by the time it is all said and done, so you can put that at @ $4500 as we are gonna dyno the motor as well.
So, my motor should be in teh $12-$13K range...give or take few $$$$$, and be an easy 700 FWHP motor, and in teh 700-750 range, with dyno time.
My headers I have about $150-$200 or so in materials (I made them years back for a 418SBF I screwed together and gonna use them on this motor, minus exhaust flanges.
That is accounting for teh covers which I spent @ $250 for all of them including pan and pickup. I had to buy bolts and such as well. If I was to do it again, I would have picked up a used motor that already had covers/bolts. I spent the better part of 2 months or so, tracking down used covers/pan/bolts, etc....
I have, new:
$800 (with shipping) 6.0 block
$800 crank
$500 rods
$1800 sheetmetal intake
$365 balancer
$170 Timing Chain
$325 MSD 6010
$700 Carb (1050 Dominator)
$1200 shaft rockers
@ $1000 in my L92 heads...porting and bare castings.
which is:
@ $7500
My machine shop, I am in them for $3500 right now (including pistons,cam and hardware and lifters that they are getting for me). I think it will be another $1000 or so by the time it is all said and done, so you can put that at @ $4500 as we are gonna dyno the motor as well.
So, my motor should be in teh $12-$13K range...give or take few $$$$$, and be an easy 700 FWHP motor, and in teh 700-750 range, with dyno time.
My headers I have about $150-$200 or so in materials (I made them years back for a 418SBF I screwed together and gonna use them on this motor, minus exhaust flanges.
That is accounting for teh covers which I spent @ $250 for all of them including pan and pickup. I had to buy bolts and such as well. If I was to do it again, I would have picked up a used motor that already had covers/bolts. I spent the better part of 2 months or so, tracking down used covers/pan/bolts, etc....
02-19-2009, 06:31 PM
#19
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I'm sure your right, I just dont have Carb/Dist experience on the LS motor so I didnt want to add any BS. Just wanted to relate what I have running in mine and how it could compare to the OP's build.
02-20-2009, 12:38 AM
#20
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im doin a 408 solid im lookin for around 700 hp also . its going to be 14:1 + compression with a 1050 alcohol dominator and a distributor conversion