LS3 Carbed build

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CGT
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Re: LS3 Carbed build

Post by CGT » Mon Oct 29, 2018 10:24 am

Rowdy Yates wrote:
Mon Oct 29, 2018 12:17 am
Sounds familiar......... Save the money on bullshit testing waste of time and $
This engine is being built for testing things. Waste of time? Explain...Or are you saying testing cylinder head modifications or a waste? Or everything?
"How or Y do you think I get all this $hit, I read all of you all builds and desktop dyno them with all the correct info and I've got your build."

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Re: LS3 Carbed build

Post by Rowdy Yates » Mon Oct 29, 2018 10:47 am

Testing the other heads besides the ones you have already. I've got Frankenstein stg1 Ls3 heads referred a few people.... 6.2 made 550rwhp with a LLSR Cam. 800 from a 418 that Flying did now for sale, he needs 900+ to be competitive.

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Re: LS3 Carbed build

Post by CGT » Mon Oct 29, 2018 10:52 am

Gotcha, get the Frankenstein's and be done......
"How or Y do you think I get all this $hit, I read all of you all builds and desktop dyno them with all the correct info and I've got your build."

Rowdy Yates
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Re: LS3 Carbed build

Post by Rowdy Yates » Mon Oct 29, 2018 11:25 am

There are other good Ls3 head porters....... They'll all be around the same ball park. Matching the CSA to the combination used is the main thing.

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Re: LS3 Carbed build

Post by slo-svt » Mon Oct 29, 2018 1:20 pm

Rowdy Yates wrote:
Mon Oct 29, 2018 11:25 am
There are other good Ls3 head porters....... They'll all be around the same ball park. Matching the CSA to the combination used is the main thing.
Do you have real world experience with anything you have suggested or just read on the Internet?
Forgiveness is between you/your engine and God. It's my job to arrange the meeting.

Rowdy Yates
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Re: LS3 Carbed build

Post by Rowdy Yates » Mon Oct 29, 2018 2:07 pm

Can you read? I have a 408 with Ls3 heads and Ls7 heads. Facts are facts no matter where they come from.

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Re: LS3 Carbed build

Post by Rowdy Yates » Mon Oct 29, 2018 2:20 pm

Same guy helped me set my heads up. EMC previous contest engine builder.


https://www.yellowbullet.com/forum/show ... ?t=1250106

CGT
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Re: LS3 Carbed build

Post by CGT » Mon Oct 29, 2018 2:31 pm

Rowdy, I don't see where your build is. Do you have some dyno data and or specs on yours?
"How or Y do you think I get all this $hit, I read all of you all builds and desktop dyno them with all the correct info and I've got your build."

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Re: LS3 Carbed build

Post by slo-svt » Mon Oct 29, 2018 2:45 pm

Rowdy Yates wrote:
Mon Oct 29, 2018 2:07 pm
Can you read? I have a 408 with Ls3 heads and Ls7 heads. Facts are facts no matter where they come from.
You could be asked the same question chief... He stated he purchased a gz vacuum pump just a couple posts prior to your first in this thread. You also haven't mentioned this 408 in this thread....
Forgiveness is between you/your engine and God. It's my job to arrange the meeting.

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Re: LS3 Carbed build

Post by slo-svt » Mon Oct 29, 2018 2:46 pm

CGT wrote:
Mon Oct 22, 2018 11:18 am
As an update on the LS3. I purchased the Daytona sensors ignition, 2821 Super Victor 4500 flange, GZ vacuum pump, Whitener 1050. Also purchased the hollow stem LS9 exhaust valves that RW TECH mentioned to me. Its coming along...slowly but surely.
Forgiveness is between you/your engine and God. It's my job to arrange the meeting.

Rowdy Yates
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Re: LS3 Carbed build

Post by Rowdy Yates » Mon Oct 29, 2018 9:33 pm

Got Everything just needs to be assembled. Ran into some legal stuff.... But to answer the question I can say for fact I've had guys who've had builds that were behind mine ...That were very similar helped somewhat with info... Go to the dyno and make what I said it would. Flying's 418 was a prime example...
Stated it would make 710 to 705 went to the dyno 708. Told him a solid roller with 8000 Rpm would make 800 went to the dyno 812. If you've looked over Ever build on Ls1tech & yellowbullet and I have. I can basically look at a combo, know the compression and Cam duration and intake used and get a very close ball park #. I love cylinder heads! Again I love cylinder heads.
Let me get on my home computer and give you the build info. Predicted to make 750 at around 7500 with the Ls3 top end and 800 -8200 with Ls7 heads that I've had Darin Morgan shrink the exhaust valve along with port work.

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Re: LS3 Carbed build

Post by A_VAS » Mon Oct 29, 2018 9:49 pm

facts found on the internet tend to be myths....
or was it myths posted on the internet after they get repeated long enough, become facts ?

I believe the truth will become apparent soon
too lazy to make power w/o boost

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Re: LS3 Carbed build

Post by Rowdy Yates » Mon Oct 29, 2018 9:58 pm

408 ci LS Chevy

Block: LQ9, overbored, .030

Bore: 4.030 inches

Stroke: Eagle 4.00 inches # 434640006100

Displacement: 408 ci

Compression ratio: 11.8:1

Crank & rods: Eagle

Camshaft: 260-272 @ .050 730 lift both sides 113+5

Valve springs Pac 1238x springs

Lifters: Morel Bushed lifters #6177

Rocker arms: Comp Cams: Ultra Pro Magnum # 1676

Rocker ratio: 1:8/ 1:8

Ring pack: Total Seal gapless rings 1.2/1.2/3mm oil # MS4701 35

Pistons: JE asymmetrical forgings with lateral gas ports & coated skirts # 311979
(.004-inch piston-to-wall)
Main studs: ARP

Rods: Eagle 6.125-inch H-beam#CRS612503D

Main bearings: Clevite H

Rod bearings: Clevite HN

Cylinder heads: Frankenstein Racing heads LS3 stage 1 heads* 70.cc

Head bolts: ARP studs

Intake manifold: Edelbrock Super Vic that I ported ported

Intake flow: Also flowed by Chris Bennett @ SAM to verify 378 cfm at .750

Exhaust flow: 257 cfm at .750

Intake valve: Manley Hollow pro-flo 2.165 inches

Exhaust valve: Manley 1.600 inches

Head gaskets: Fel-Pro 1041 (.040 inch)

Throttle body: Accufab 4500 TB

Headers: Headman 1 7/8 step to 2 inch with 3-inch merge collector

Damper: ATI with 10 percent U/D
steel hub with aluminum shell
Water pump: Jegs 50 gpm electric

Oil pan: Moroso oil pan for 1990* S10

Oil pump: Ported Melling High oil pressure

Vacuum pump GZ super pro with Mandrel Pulley kit
Last edited by Rowdy Yates on Mon Oct 29, 2018 10:14 pm, edited 3 times in total.

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Re: LS3 Carbed build

Post by Rowdy Yates » Mon Oct 29, 2018 9:58 pm

I guess your FAKE then A_VAS!


Ls7 heads milled to 61 cc's for about 13.2 compression
2.200 Titanium stock LS7 intake
1.550 Ferrea 24° exhaust
Flowed on 4.060 bore 28” TP
CCFM
Lift No. 1 No. 2
-------- ------- -------
0.2000 111.2 165.2
0.3000 167.2 238.7
0.4000 191.3 300.6
0.5000 213.8 336.2
0.6000 219.9 360.1
0.7000 222.8 379.7
0.8000 225.0 370.0



==================
Darin Morgan
Induction Research and Development
EFI Calibration

Reher Morrison Racing Engines
1120 Enterprise Place
Arlington Texas 76001
Phone 817-467-7171
Fax 817-468-3147
cell Funny!
http://www.rehermorrison.com


Cam# LS1, R80444-84455-115
270/284 @.050"
.444"/.455" Lobe Lift
.778"/.797" Net Valve Lift (after Lash)
115 LSA

Rowdy Yates
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Re: LS3 Carbed build

Post by Rowdy Yates » Mon Oct 29, 2018 10:11 pm

To: Chris Frank
Cc:
Subject: spec sheet missing for stage 1 ls3 heads


I spoke with you and I understand you are busy...I would also like the flow chart I am at 730 lift...Thanks for
the great work..I just need 2 have a reference for my own build library..

Int. 2.165

.200/159
.300/237
.400/282
.500/338
.600/368
.700/388
.750/390

Ex 1.590

.200/120
.300/190
.400/225
.500/242
.600/250
.700/255
.750/257


Kind Regards,
Chris Frank
FRANKenstein Racing Heads, LLC
328 N Broadway St. Ste. B
Joshua, TX 76058
Chris@Frankensteinracingheads.com

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