C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Flow numbers, beat these.

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Old Oct 13, 2008 | 01:03 AM
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Default Flow numbers, beat these.

I dont think a TPI will fit.




MONSTER MOTOR" FOR PRO MOD., PRO NITROUS
2008 903 CU. IN. ENGINE WITH SONNY'S DESIGN
5.300" B.S. GM HEMISPHERICAL CYLINDER HEADS.
1875 NATURALLY ASPIRATED H.P. (NO NITROUS) 2450 WITH NOS
Special Features:
*--Sonny's 864ci GM Hemispherical headed engine features Ultra Lite CNC program that weighs 2 lbs less than the 784 ci Hemispherical headed engines.

*--Sonny's 5.300" GM Hemispherical head has a 1.600" longer bore spacing than the 5.000" GM Hemispherical heads

*--Four Braswell 2bbl carburetors featuring 2.400" throttle bore feed pistons with 13.0:1 static colmpression

*--The 70mm cam has a gross lift of 1.200" with a 1.85 rocker arm ratio with .685 lobe liftl

*--The 5.300" cylinder head's intake runner has a volume of 652cc while the exhaust is 212cc which flow 660cfm @ 1.100" lift with a 2.725" valve on the intake and 470cfm @ 1.100" lift with a 2.100" valve on the exhaust

Sonny's in-house fully CNC ported "Next Generation" Hemi cyl. heads
SAR Special Billet Aluminum 5.300" B.S. block with 1.100" raised cam
Bryant billet crank
BME 426 aluminum forged rods
Venolia pistons
Jesel keyed lifters
1.031" tool steel taper-wall pins
Federal Mogul "Hell Fire" rings
Special titanium valves & PSI springs
SAR shaft mounted rocker system with needle bearing roller tips
Jesel belt drive
Moroso 4-stage dry sump oiling
Moroso vacuum system
ATI balancer
MSD cranktrigger ignition
SAR sheetmetal 4x2 intake with linkage
SAR/BLP (4) 2 barrel split dominator carbs
Sheetmetal billet rail valve covers
Meziere hi-flow electric water pump
Pro series CSI starter
Fuel lines with 4 port regulator
fuel lines and regulator for nitrous
TWO NITROUS SYSTEMS INSTALLED
DRILLED AND TAPPED FOR 3RD SYSTEM

ORDER BY 11/15/08 AND SAVE 5,800.00 !!!
ONLY 87,000.00
Old Oct 13, 2008 | 04:32 AM
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but afr... lol I'm just kidding. that motor is INSANE !!
Old Oct 13, 2008 | 07:09 AM
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We have a winner of mines bigger than yours!!! Thats like 2 454 small blocks!!!
Old Oct 13, 2008 | 07:12 AM
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Intake

AFR..........1.56 CFM per 1 cc
Sonny's.....1.01 CFM per 1 cc

Exhaust

AFR..........3.67 CFM per 1 cc
Sonny's.....2.21 CFM per 1 cc
Old Oct 13, 2008 | 10:11 AM
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Originally Posted by Vette Threat
Intake

AFR..........1.56 CFM per 1 cc
Sonny's.....1.01 CFM per 1 cc

Exhaust

AFR..........3.67 CFM per 1 cc
Sonny's.....2.21 CFM per 1 cc

Is that even serious? Cause man I hope not…

Last edited by Deakins; Oct 13, 2008 at 10:18 AM.
Old Oct 13, 2008 | 10:17 AM
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I just ordered a hood scoop!
Old Oct 13, 2008 | 10:29 AM
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Originally Posted by Deakins
Is that even serious? Cause man I hope not…
A clear demonstration of the misunderstanding of how engines are designed and how mis information runs wild!! Even to the extent that exhaust numbers really matter that much... too funny, I appreciate the laugh. Glad we can have some humor in a flow thread!

Perhaps VT should give Sonny a call and straighten him out!!!

I'll be back, going to breath into a small paper bag, I can't stop laughing...

Great post CV!!!

Last edited by jsup; Oct 13, 2008 at 10:32 AM.
Old Oct 13, 2008 | 10:33 AM
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Originally Posted by 383vett
I just ordered a hood scoop!
Can't wait to see your dyno sheets!!!!

Last edited by jsup; Oct 13, 2008 at 10:44 AM.
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Old Oct 13, 2008 | 12:16 PM
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Originally Posted by cuisinartvette
ORDER BY 11/15/08 AND SAVE 5,800.00 !!!
ONLY 87,000.00
Order one and get a FREE smallblock or C4!
Old Oct 13, 2008 | 12:40 PM
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"Why did he build it like that? He'll make more power with a proven combo."

or

"Who is Sonny Leonard? I've never heard of him -- he's not a forum vendor, is he?"



Last edited by Z51L9889; Oct 13, 2008 at 12:42 PM.
Old Oct 13, 2008 | 12:53 PM
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1.200" Gross Lift !! .... .that kind of lift would drive my valve covers right through my hood !!!..... and it'd be worth it
Old Oct 13, 2008 | 12:57 PM
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Originally Posted by Vette Threat
Intake

AFR..........1.56 CFM per 1 cc
Sonny's.....1.01 CFM per 1 cc

Exhaust

AFR..........3.67 CFM per 1 cc
Sonny's.....2.21 CFM per 1 cc
I think its pretty clear..... AFR 180cc > Sonny's 652cc Hemispherical cylinder head .... too big of a runner, never make any torque with that Sonny head

Last edited by Beach Bum; Oct 13, 2008 at 12:59 PM.
Old Oct 13, 2008 | 01:02 PM
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Just doing a bit of math -- the valve inlet flow area of that head is almost 10 square inches (9.76 to be exact).

To put that in perspective, the inlet flow area of a 2.05 intake valve at 0.600 lift is 3.86 square inches ......

I would LOVE to be able to see the parts used to build this bad boy in person.
Old Oct 13, 2008 | 02:01 PM
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Originally Posted by 383vett
I just ordered a hood scoop!
Leg-humper
Old Oct 13, 2008 | 02:27 PM
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I'll take three...
Old Oct 13, 2008 | 02:33 PM
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Originally Posted by Z51L9889
"Why did he build it like that? He'll make more power with a proven combo."

or

"Who is Sonny Leonard? I've never heard of him -- he's not a forum vendor, is he?"


OR, that's racing, has nothing to do with my build....
Old Oct 13, 2008 | 03:59 PM
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I've had the pleasure of being around one of his creations and it was top notch! The parts are amazing and in some cases, custom made for that engine (you could almost beat someone up with the connecting rod out of one of these things). It's nice though, they have gotten cheaper! Several years back a 704 cubic inch version came through and that was a $75,000 deal with the 800+ version being over $100,000. It's cool that you can get into one of the big ones now for a little less. If you want to go fast; it's worth every penny!

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To Flow numbers, beat these.

Old Oct 13, 2008 | 04:09 PM
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I am waiting on the question of

"How do I fit this in my C4?"
Old Oct 13, 2008 | 07:41 PM
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Originally Posted by jsup
A clear demonstration of the misunderstanding of how engines are designed and how mis information runs wild!!

Another clear example of you spinning out of control in a cylinder head thread and attacking the merits of fellow forum members is more like it.

The OPs title to this thread was "flow numbers beat these" and that's ALL he said......nothing about building engines, making power, VE, combustion chamber shape etc etc etc.....

So where's the misinformation you're crying about?

Perhaps VT should give Sonny a call and straighten him out!!!
About what? Where did I criticize Sonny? What I posted were facts and nothing else. No opinions, recommendations or criticisms yet here comes J-Lo and the cylinder head Police again after being alerted that the keyword
"AFR" was typed in a thread.

Geez dude, let up already and relax.
Old Oct 13, 2008 | 08:15 PM
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Originally Posted by Vette Threat
Another clear example of you spinning out of control in a cylinder head thread and attacking the merits of fellow forum members is more like it.

The OPs title to this thread was "flow numbers beat these" and that's ALL he said......nothing about building engines, making power, VE, combustion chamber shape etc etc etc.....
It also didn't say anything about AFR ...... nor did it invite comparisons to AFR. However, you did bring it up, which in this case is like comparing an apple to a howitzer. The "attack" is merely pointing out the absurdity of the comparison which is what I am sure several people, including myself, were thinking.


Geez dude, let up already and relax.
Perhaps this statement is directed at the wrong person ?????



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