Gitusum

so the engine will be done and on the dyno in a few days so i am told. looking for guesses or idea of what kind of power i will make. here are the mods list

forged ls2 with 10.1 compression
trickflow heads
ls6 intake
rpm auto tranny with yank 3200 stall
rpm rear with 342 gears
meth
f1c blower w/ fmic and 4.0 pulley and IW oversized balancer
flip drive
1000cc injectors


Rick

MVP'S ZO6

How much boost do you expect to see?

My guess is close to 1,000 WHP

MawneeC5

I bid 1 hp Bob.

Sounds like a killer setup. Good luck on the dyno!

robert miller

Rick, what CI motor, then what size heads. I would say with out knowing the above and who is doing the tuning on her. 940 rwhp

Y2KRoadster

This^

Like MVP said,

I'd also like to know how much boost this bad boy is going to be running.

MVP'S ZO6

(Crank pully diameter/Step up ratio) * max Engine RPM should calculate his impeller speed.

(8/4 * 4.50) * 7000 or whatever rpm hes going to shift at should give his blower impeller speed.

Based on my calculations if he shifts at 7,000 RPM's he should be at an impeller speed of 60,000 RPM

That blower has a maximum recommended impeller RPM of 75,000

He won't even be making that blowe work at that point.

Gitusum

i have no idea what boost it will be making i know its a f1c blower and its a forged 6.0 iron block. the reason i posted this is with a aluminum ls2 and dish pistons and a d1sc and twin i/c all other parts the same i made 704 which i thought was really low but the motor was crap bad bearings etc. so the builder said i should make 800 with this setup and i was like wtf!! with just a i/c swap from duals to a single should have got me 770 give or take a few hp alone and now upping the compression from 9.1 to 10.1 way bigger blower flip drive and single i/c with a 4.0 pulley he is saying 800 so with all that changing of stuff if i only pic up 100 more rwhp i will drive it off a cliff with him in it

I am with you guys thinking right around the 1k rwhp but we will see i guess

Rick

Gitusum

im guessing the shift points are set at 6700 or 6800 i believe and the pulley size is 4.0 and i/w oversized crank pulley

MVP'S ZO6

My calculations are based on an 8 inch crank pulley 4 inch blower pulley a blower internal step up ratio of 5.40 : 1and a shift point at 7,000 RPM.

Either way your going to have a lot of room to play.

Hey Rick, what size is the engine?

Gitusum

its a 370 forged iron block i was just looking to hit or come close to the 1000rwhp mark is all and being told around 800 by the builder i felt sick to my stomach

MVP'S ZO6

Ok. Given your engine size, compression ratio and blower and pully combo, I'm going to chage my guestimate go with somewhere between 890-950 at the wheels.

Use a velocity stack. Prochargers love them!!

Your butt isn't going to notice a difference.

Gitusum

dammit there is no take backs i like your 1st hp better

Y2KRoadster

If it is that far away from it's max impeller speed of 75000 RPM, I'm guessing 800-850.

robert miller

Also more than any part in the motor Rick, That is if all parts & tune is really good. The CAM is going to have a big part in the rwhp & rwtq #. I wanted a good street cam also in my build where the Cam would not wear out the top of the motor ever 5,k miles on it.

Hope to go one size lower in pulley size in BG KY next month will see how she does by the seat with that. If no rain this week end will be going to the 1/8 track this Sat, since it rained off and on all of this last weekend here.. Robert

Gitusum

Robert I went with a cam tha Arun suggested lunati voodoo cam so it hits pretty good

robert miller

I will stay with my #.. Good luck buddy on the rollers. I also got my cam from Arun.. The man is good... Robert

BLOWNBLUEZ06

quite a bit of missing data, don't kill me for my guess, but I wanted to throw my honest bid.

837 SAE corrected

That kinda power will get your blood pumpin.

MVP'S ZO6

What are the cam specs? Lunati has several voodo cam configurations for the LS engine.

I'm going to guess somewhere between 15- 18 psi boost.

Gitusum

what data are ya needing Bret i may be able to give you the info

Gitusum

598/600 113