Dynamometer Results & Comparisons - Guesses for a "diffrent" set-up?

I don't usaully post things like this, but since the set-up I'm building is a bit "out side the box", I'd like to get some feed back on how ya'll think it will do. Set-up consists of:
HPE 454 ci LS2. 11:5:1 (Sleeved/4.150 bore" x 4.185" stroke)
ET performance 265cc race heads
25x/26x .650+ lift 110-112 LSA (still determining final specs)
FAST 90/90
Kooks 1 7/8" stepped to 2" headers
3" or 3 1/2" X/duals dumped
M6 tranny thru Moser 12-bolt

It's deffinatlly something you don't see everyday. I'm hoping to surpass 600 rwhp on pumpgas. Feel free to post up your guesses or ask questions if you feel I left something out. Thanks :)

Do you have gears or any weight reduction, are the heads milled, what do they flow,and what kind of a gasket?

Do you have gears or any weight reduction, are the heads milled, what do they flow,and what kind of a gasket?I meant guesses on HP, not times. For the fun of it though, 12 bolt w/4.10's, 3450 lb.s, heads are ET performance casting's. chambers cut to 66 cc's, no milling because you can have the chambers cnc'd to your specifacation, heads flow 380+ cfm at .700", as for gaskets, I'll either use a .054 cometic or SCE titan. :)

I would say 615hp 630tq.

I guess not to many people like playing the guessing game. Of course I don't reply to other guessing threads, so why should anyone reply to mine???:jest: :)

With that size motor and the way people have been praising the ET heads i would be dissapointed if it did not make 600HP :judge:

With that size motor and the way people have been praising the ET heads i would be dissapointed if it did not make 600HP :judge:


I totally agree

Yea, Futral laid down 618 rwhp with the M6 and a 418, so I think I can swing the 600 no problem.

good luck with the build. ill guess 600rwhp :)

I'll say 640 or so, just want to be a little high ;)

What did Erik guess it at?

I don't usaully post things like this, but since the set-up I'm building is a bit "out side the box", I'd like to get some feed back on how ya'll think it will do. Set-up consists of:
HPE 454 ci LS2. 11:5:1 (Sleeved/4.150 bore" x 4.185" stroke)
ET performance 265cc race heads
25x/26x .650+ lift 110-112 LSA (still determining final specs)
FAST 90/90
Kooks 1 7/8" stepped to 2" headers
3" or 3 1/2" X/duals dumped
M6 tranny thru Moser 12-bolt

It's deffinatlly something you don't see everyday. I'm hoping to surpass 600 rwhp on pumpgas. Feel free to post up your guesses or ask questions if you feel I left something out. Thanks :)
Just wondering about the price for a set up like this? Is it alot more then a 408 set up?
BTW go bigger with the cam :chug:

Just wondering about the price for a set up like this? Is it alot more then a 408 set up?
BTW go bigger with the cam :chug:The major extra cost is in the sleeved block. It's $2600 as compared to $900 or so for a regular LS2 block. Of course in a build of this size, almost everything is custom. I had to pay $300 extra for longer sleeves, $1300 extra for the Lunati 4.185" stroke crank as compared to a Eagle, and a extra $200 for custom pistons over the price of shelf pistons. The short block will end up in the $7500 area after it's complete. Due to the extreme efficency of the heads, I doubt the cam will be bigger. If anything it may be a bit smaller. Since the heads are so large and move so much air, the camshaft will have to be kept on the tame side in order to keep the rpm's at a useable level. I don't want to rev past 7k, so we are going to try and work in a cam that will provide the most efficeint cylinder filling within that givin rpm range. :) Brandon, erik hasn't really mentioned how much power it should make yet. he's been so busy trying to get all these parts ordered, that we haven't really had time to talk much about it.

That's not bad or a price at all :) Just wondering about those heads, has anyone thought that thay could be too big and lose efficency?? I would think with that much flow you would want to fill them with as much air as possible. Say a solid roller with your duration that you want but a .700+ valve lift.

615 rwhp, 570 rwtq. If you were running something better flowing than the FAST 90/90, I'd guess even higher. The intake is going to be the biggest bottleneck of the system IMO.

what flows better than the 90/90 patrick?

Both sheetmetal/carb style intakes do.

615 rwhp, 570 rwtq. If you were running something better flowing than the FAST 90/90, I'd guess even higher. The intake is going to be the biggest bottleneck of the system IMO.Your exactlly correct. If money allows, I am going to look into the Nitro Dave/Victor jr. intake set-up.

That should be wicked nasty. I'd have to agree with Patrick on that the intake will be your biggest bottle kneck. I certainly hope to get my motor sometime soon and slap this sb2 intake on and 1550 cfm tb and see if the intake is truly the bottle kneck:). I just have a puney 434 though, lol!