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tqhq.ee foorum : Modifitseerimine : LS2 500CID  
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askeldaja
 
LS2 500CID
Leidsin ühe huvitava jutuotsa. :)

quote:
Here is some info and pictures of our 500 cubic inch ls2 project we have been currently working on here at the school.

Some information about the motor:

Bore - 4.2025" Outfitted with Custom Wiseco 26cc Dish Pistons
Stroke - 4.500" = 500 Cubic Inches
Connecting Rods - 6.800" Carrillo Billet A-Beam
Cam - Custom ground Comp Cams Hydraulic Roller
Heads - LS7 heads that have been cleaned up
Intake - Factory LS7 Intake

This is hosting ERL's Deck Plate and Sleeving they are offering to help allow us to reach the 500 cubic inch limit.

We are right at a 10.9:1 compression ratio and we are looking to make around 650 to 700 horsepower Naturally Aspirated on Pump Gas.

Lingilt saab ka pilte näha ja juttu lugeda
09.05.2006 at 11:18
askeldaja
 
LS2 500CID
Paar sõna veel juurde.

quote:
ERL Performance 500-cid LS2
Short-Block
www.erlperformance.com
812-948-8484

If you thought the new 427-cube LS7 was the big dog on the block, think again. ERL Performance now offers 500 cubic-inch short blocks in crate form or as kits. ERL starts with an LS2 block and fits it with "Superdeck" deck plates to arrive at a 10.2-inch deck height. The Superdeck system employs integrated bore sleeves for long rods and plenty of stroke--up to 4.5 inches. These short-blocks are built to order, so a multitude of combos are possible; rod size (Carillo) ranges from 6.600- to 6.800-inch, bore (Wiseco pistons) ranges from 4.155- to 4.205-inch, and stroke (a Lunati forging) starts at 4.250 inches. ERL even developed it's own big-bore MLS gaskets with Cometic, a leader in the field. Add ERL's intake port spacers to your heads and over 1,000 hp is possible. One of these will set you back about $10K.

LINK
13.06.2006 at 12:30
askeldaja
 
LS2 500CID
Üks võrdlemisi tõsiseltvõetav tänavamootor, kui jõuülekanne ja muu vajalik viia selle võimsusega vastavusse, saab toreda sportliku cruiseri. ;)

Allikas

500ci LS2 Prototype Engine


Displacement: 500ci
Block: GM Production LS2; modified by ERL with a deck plate and pressed sleeves
Bore: 4.202"
Stroke: 4.500"
Pistons: Wiseco
Piston Rings: Speed Pro File Fit Plasma Moly
Connecting Rods: Carillo Pro A-Beam 6.800"
Compression: 9.5:1
Camshaft: Competion Cams Hydraulic Roller
Camshaft Duration: 224/232 @.050"
Lift Intake: .555"
Lift Exhaust .555"
Lobe Seperation: in the engine at 110°
Heads: Production LS2 (ported)
Intake Flow: 285 CFM @ .550
Exhaust Flow: 210 CFM @ .550
Combustion Chamber: 50cc
Intake: Beck Sheetmetal
Computer: Big Stuff 3
Injectors: Stock LS7
Thottle Body: Nick Williams 90mm




Edit: väike nitrolaks on ka selle 900hj loos, surveaste ka vastav: 9,5.

Üks viide ka umbkaudsele võimsusreitingule vabalthingavalt:

quote:
building one of the world’s first 500ci Gen III small-blocks. Thanks to a set of ported LS7 heads, projected output is in the 650-700 hp range on pump gas with a very conservative cam.

Allikas
04.04.2007 at 16:53 2 edits. Last edited 04.04.2007 at 18:33 by askeldaja
askeldaja
 
LS2 500CID
Kuuptollide jahil on kasutusel koguni 4.6" billet crank.

quote:


MTI RACING 500ci Dominator
LS7 Based
- RHS A357-T6 Aluminum Tall Deck Race Block
-4.165” Bore
-4.600” Stroke
- Callies Forged Dragon Slayer Crankshaft
- MTI Racing Custom Forged Pistons
- H11 Tool Steel Wristpins
- MTI Custom built Ring packages by Total Seal
- Clevite Bearings
- MTI Racing CNC Ported LS7 Heads
-Severe Duty Double Springs
- Titanium Retainers
-MTI Racing Hardened Spring Seats and Locks
- LS7 MLS Severe Duty Head Gaskets
- Application Specific Chromoly Pushrods
-MTI Racing/Comp Cams Camshaft Ground per Application
-MTI Racing/Cloyes Dominator Timing Chain Set
-Micro Polished Gears
- Timing Chain Damper For added Longevity
-MTI Racing Ported LS7 Intake Manifold with Adapter Spacers
- MTI Racing Ported LS7 Oil Pump
- MTI Racing Extrude Honed Oil Pan
- MTI Racing Modified Oil Tank
- GM Racing High Performance Lifters
- LS7 Crank Damper
- ARP Hardware
- All Applicable Seals and Gaskets




4.5" väntvõll on juba üsna tavaline. Saadaval juba mõnda aega näiteks WARHAWK 481 kombinatsioonis.

Puhtteoreetiliselt annaks 4.250 bore ja 4.600 stroke kokku ~522 CID ( umbes 8,55L) kombinatsiooni. :) Praktikas tundub olema 4.250 bore siiski vähepopulaarne, töökindlus väheneb oluliselt.
26.10.2009 at 14:02 2 edits. Last edited 26.10.2009 at 14:16 by askeldaja
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