Dynamometer Results & Comparisons - LS3 414 results Video added

Still quite a bit of tuning to be done but pretty happy right now. Car is a monster!

4.060x4.00 iron block
11.5:1 compression
L92/ls3 style heads
GMPP single plane
scorpion 2000 CFM 4150 throttle body
258/259 .714/.698 108 LSA solid roller cam
8000+RPM :)

6speed with spec dual disc and moser 12 bolt

http://youtu.be/K83cMHPHudY

http://youtu.be/_1wyR9LZ4Hk

not bad, i woulda thought it would be a bit higher than that however,

my 418 is running stock intake, 92tb and a cam thats quit a bit smaller than that one and only spinning 6600 it makes its max power at 6300 and its around 540.

That is definetly not bad but I think your heads are holding you back some since yours seems to stop making power pretty early as well. That is definetly good for stock casting heads though

also from what I have heard that our LS3 heads dont like monster cams and actually prefer cams with a bit less duration and lift than other style heads. I think there is a writup on this somewhere, maybe pat G can chime in

After all is said and done I don't think 600 will be a problem. The dyno didn't seen to be acting right. It wouldn't pick up any spark over 7k rpm. This motor made 730 on the engine dyno so I'm sure something isnt jiving.

any videos?

congrats

After all is said and done I don't think 600 will be a problem. The dyno didn't seen to be acting right. It wouldn't pick up any spark over 7k rpm. This motor made 730 on the engine dyno so I'm sure something isnt jiving.

Yeah something is definately wrong if it made 730 on an engine dyno. That would be a loss of almost 170hp in the drivetrain and I don't see that happening. You also have a 6 speed to boot.

Good numbers !!! Maybe having a 12 bolt ?

I had same heads/then went to trickflow 235 and gained 10hp on peak and 20hp under the curve... gained 15tq also...

Very nice. That cam is allittle different for those heads.

Although a 6 speed this is through a steel driveshaft and some 325/45-17 M&H tires :-). Tuner said it has 24* of timing in it as well to stay safe.

not bad, i woulda thought it would be a bit higher than that however,

my 418 is running stock intake, 92tb and a cam thats quit a bit smaller than that one and only spinning 6600 it makes its max power at 6300 and its around 540.

That is definetly not bad but I think your heads are holding you back some since yours seems to stop making power pretty early as well. That is definetly good for stock casting heads though

What kind of power did you make?

Says 540 :) how far does it carry it out though?

I see it peaked at 140mph, what rpm is that?

Not sure. 8200 is 165 with 4.10's and a 28" tire

Ok, confused a little here. If you make peak power at 140mph (equates to 6,900rpm by your tire size/gear/4th) why are you spinning it to 8,200? I think you are putting undue stress on parts.

FYI, my hyd cammed 11.1-1cr 418 with AFR 225 heads through an 80E, 12bolt, 4.56 gears, and a heavy 315/60/15 drag radial made 521rwhp at 6,950. Not knocking your combo, you make a few more ponies than I do, but I would expect that with more compression, more cam and through an M6.

Why wouldn't you pull it as long as power doesn't drop off much? There is still more power to be made im sure. Found out tonight I bought a use rear with a bent axel and it's causing the rotor to drag on the brakes. The builder says he would put more than 24* of timing in it. We are just being careful since there are no knock sensors anymore. Might try E-85 and 32* of timing :)

I hope you have the supporting mods for that E85 bud. That shit is corrosive as hell, I'm not too sure because I can't really see your graph clearly but does it dip down to about 11.25? 24* of timing seems LOW to me at least. Keep us posted.

Can you link the info you have for e85? Methanol is extremely corrosive but ethanol not so much from what I have researched. My fuel system is more than up to the task of pumping enough fuel with an a1000 and 80lb injectors. It was tuned in 100+ degree weather which is why the low timing. I wanted it safe since I'm not using knock sensors. There is a bit left in ironing out the tune. I also discovered one of the axels in my moser 12bolt is bent and causing the rotor to drag on the pads.

I guess the rpm in which you shift at really comes down to shift extensions, finding the correct RPM for each gear based on RPM drop. Find the highest average power for each gear change.

http://www.change2e85.com/servlet/Page?template=Myths

That is just one link bud, just google it. You can run it just upgrade your system.

there seems to be quite a few variables as to your "low" number, but it looks like a pretty strong running car. Keep tuning her and get the timing down to where it needs to be. What exhaust and headers combo are you running? also, i have read that the ls3/l92 style heads like a cam with at least 10 degrees of separation on the duration. unless you're happy with the overall combination, get in touch with pat g and see what he suggest for your set up, otherwise once that car is all tuned up and running properly, enjoy it man!

It's not that ls3 heads want a certain cam. That's more intake/exhaust dependent IMO. I'm running kooks 2" headers and 3.5" true duals. These are just preliminary results for now until it warms up a little and I get it all ironed out. On one of the pulls it says it only made 460 ft lbs. with 220+ cranking compression. I don't see that being correct.

I'll see if I can get the vid up tonight.

video added. Not sure what the noise is at the end. Hoping it was the busted ass dyno it was on!

We picked up 2tenths and 2 MPH going from 24 to 30 degrees of timing. 700 plus on the engine dyno is bad azz. Good luck with it.

Still quite a bit of tuning to be done but pretty happy right now. Car is a monster!

4.060x4.00 iron block
11.5:1 compression
L92/ls3 style heads
GMPP single plane
scorpion 2000 CFM 4150 throttle body
258/259 .714/.698 108 LSA solid roller cam
8000+RPM :)

6speed with spec dual disc and moser 12 bolt

http://youtu.be/K83cMHPHudY

http://youtu.be/_1wyR9LZ4Hk

dude that thing sounds PISSED:devil:

hows the drivability with that cam? what gears are you running?

Also, how hard was the tuning?

"iron block" Meaning LSX or LQ block? What rods are you running?
Personally I would be scared to spin that high with our style of oil pump. Why did you want to spin that fast anyways? I want a horsepower/torque vs RPM graph..

"iron block" Meaning LSX or LQ block? What rods are you running?
Personally I would be scared to spin that high with our style of oil pump. Why did you want to spin that fast anyways? I want a horsepower/torque vs RPM graph..


Couldn't get a good graph cause for some reason the dyno wouldnt pick up rpm over 7k. The block is a LQ block filled with callies compstar crank and rods with ceramic coated pistons. Im running a moroso pump and pan using a total of 8 quarts of oil. I have had torque monster cars before and they just don't do it for me. I'd put a 700hp high rpm car against a 800hp low rpm car any day. This motor is also built for a 300-400 shot from a direct port I have set to the side in the garage :)

I have had to completely stop working on the car. My baby girl has been born and is here a month early!!! It's an incredible feeling. I'll update this in spring most likely!

Couldn't get a good graph cause for some reason the dyno wouldnt pick up rpm over 7k. The block is a LQ block filled with callies compstar crank and rods with ceramic coated pistons. Im running a moroso pump and pan using a total of 8 quarts of oil. I have had torque monster cars before and they just don't do it for me. I'd put a 700hp high rpm car against a 800hp low rpm car any day. This motor is also built for a 300-400 shot from a direct port I have set to the side in the garage :)

I have had to completely stop working on the car. My baby girl has been born and is here a month early!!! It's an incredible feeling. I'll update this in spring most likely!

your going to run a 300 shot at 11.5.1 ? i hope its race gas..

I have e85 less than 1/4 mile from my house and easily get 55 gallon drums of c16 to keep in the garage :). My next step is tuning it on E and hitting it with 32-34* of timing. It has only had about 2-3 hours worth of tuning so there is more left there

callies compstar crank and rod

I have had to completely stop working on the car. My baby girl has been born and is here a month early!!! It's an incredible feeling. I'll update this in spring most likely!

Be careful with those Compstar Rods spinning that high...

Congratulation man!

Be careful with those Compstar Rods spinning that high...

Congratulation man!

Is it the rods or rod bolts?

Why wouldn't you pull it as long as power doesn't drop off much? There is still more power to be made im sure. Found out tonight I bought a use rear with a bent axel and it's causing the rotor to drag on the brakes. The builder says he would put more than 24* of timing in it. We are just being careful since there are no knock sensors anymore. Might try E-85 and 32* of timing :)

You guys better be careful with that. It is a misnomer that E85 will take, or want WAY more timing than gas....

If your tuner has a clue what he's doing, he will be reading the plugs and giving the engine timing it wants instead of guessing at a number and calling it good.

Be careful with those Compstar Rods spinning that high...

Congratulation man!

Comp Stars will take a licking and keep on ticking.:D

I think that the stock rods with bolts would be ok :eyes: Thats what every on else seems to be running on this board.

If the AFR wasn't in the 11's for half the run I think you'd see some better numbers.

That little of exhaust split and tight lsa is nothing like anything I've seen for rectangle port heads.

It sure sounds bad ass though:)

your going to run a 300 shot at 11.5.1 ? i hope its race gas..

I'm sorry I have to respond to this.

11.5.1 and a 300 shot is nothing.

Have you ever spent any time around a serious nitrous car?

I know more people than I can count on two hands that run 400+ worth of dope through their motor's at 12:5.1 compression if not more some are around 13.5:1. Tuning window gets narrower higher compression you go, but with race gas and someone that knows what they are doing and the right plug there is nothing wrong with it.

Comp Stars will take a licking and keep on ticking.:D

I think that the stock rods with bolts would be ok :eyes: Thats what every on else seems to be running on this board.

Stock Rods... what?

Stock Rods... what?

I think he is taking a shot at the people running stock bottom ends and boost.