03-27-2011, 10:03 AM | #1 |
10.11 @ 136.32
Drives: Black & Yellow 2SS/RS LPE LS7 427 Join Date: Mar 2010
Location: Redcliff, Alberta
Posts: 957
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Questions on stroking and forged internals.
I currently have a TVS2300 that has the intake ported, LPE 69cc CNC heads with upgraded valve train, LPE GT-9 cam, L99 -LS3 conversion, RotFab CAI, Stainlessworks 1-7/8" headers and 3" exhaust. Not really related but for information purposes I also have an RPM Transmission 3.70 diff, DSS 1400 hp axles, Phadt diff bushings, subframe bushings, sway bars and inverted coilovers.
The car dyno's at 590rwhp and I am running a conservative 7lbs boost to preserve the stock bottom end, which leads me to my questions. I would like to stroke my motor and replace the rotating system with forged internals to be able to increase boost to10psi. My goal is to have a car who's application is about 60% track and 40% street. My preference would be to stroke the 376ci. motor to 427ci. with ~10:1 compression. Question #1
Thanks, Bryan |
03-27-2011, 04:57 PM | #2 |
Bump
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03-27-2011, 11:20 PM | #3 | |
Drives: 2010 Camaro SS/RS 427ci Join Date: Jul 2009
Location: Bowling Green, Ky
Posts: 3,355
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Quote:
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03-27-2011, 11:28 PM | #4 |
Drives: aqua 2ss l99 Join Date: Jun 2009
Location: Edmonton
Posts: 1,215
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did you ask steve as well??
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May your exhaust note, sing in harmony with your blower.
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03-28-2011, 06:01 AM | #5 |
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427 cubes on a LS3 based engine is not really recommended for boost, the piston is not as thick as a 416 or 418. But there are some people that have good luck with a boosted LS3 based 427. I am hoping that I will be one of the lucky ones since that is exactly what I am doing as we speak.
Good luck with you project which ever way you choose to go.
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03-28-2011, 07:23 AM | #6 | |
10.11 @ 136.32
Drives: Black & Yellow 2SS/RS LPE LS7 427 Join Date: Mar 2010
Location: Redcliff, Alberta
Posts: 957
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Yes, we've been discussing it at length. His shop will do the build, but he has challenged me to do my homework on 416 vs 427 before he takes my cash.
Quote:
Bryan |
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03-28-2011, 08:03 AM | #7 |
Drives: Maggie blown LS3 vette Join Date: Aug 2009
Location: SE TX
Posts: 1,490
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I'd leave the cubes as is. Cubes aren't going to limit you. After you build a forged bottom, you can spin the TVS up to its practical limits anyway. About the only thing more cubes will give you is more power down low. I'm guessing with a forged bottom and 3" blower pulley, you'll have all you can handle. You'll keep a few more bucks in the bank and get a little better mpg too. You're about at the point where a little more costs a lot more. Yes, absolutely, you can push it. For me, it wouldn't be worth it. Guess you have to decide
If you are hell bent on stroking it, my vote would go for the 416. Those extra few cubes come at a price. |
03-28-2011, 08:27 AM | #8 | |
Black Thunder
Drives: 2010 Camaro 2SS/RS Join Date: Oct 2009
Location: NJ
Posts: 183
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Quote:
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JRE 416 9:1 Forged Stroker Package
Edlebrock E-Force Super Charger JRE Blower Cam package Cooling Mist Water/Meth 3.25 blower pulley FAST 65 lb. hr. injectors JRE Edelbrock fuel system upgrade GM ZR-1 Clutch Roto Fab CAI Kooks Headers Jet Hot Coated Kooks High Flow Cats 3" Magnaflow Stainless Steel Exhaust Barton Short Throw Shifter JRE Dyno Tune |
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03-28-2011, 09:01 AM | #9 |
Drives: Camaro Join Date: Apr 2009
Location: Texas
Posts: 1,669
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We can select a piston to get compression where we need it so there should be no issue there. We do a lot of the 418s for Maggie customers and you should be able to support 900 flywheel hp with that blower. . Give us a call to discuss your combo, I bet we have a few short blocks in stock to get you going.
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03-28-2011, 09:31 AM | #10 | |
Drives: everyone crazy... Join Date: May 2009
Location: SW Florida
Posts: 2,109
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Keep your stock cube and spend that money on drive train and suspension and tranny, where you will need it. Again, with a good designed F/I engine, you can get a lot of power even from a small engine. I saw a Honda S2000 putting out 700 RWHP in front of my own eyes with a single turbo. |
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03-28-2011, 12:43 PM | #11 |
Slim2SS what kind of hp is your setup putting down?
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