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THUNDER DOMES™/THUNDER DOMES II™
(click photo to enlarge)
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"Thunder Domes IITM
are truly better by design..."
High performance interchangeable
combustion chamber cylinder heads for popular Polaris snowmobiles.
Thunder Domes IITM
feature an advanced two piece design which controls heat transfer from
the cylinder to the head allowing balanced cooling for maximum
performance and detonation resistance. The snowmobile industries most
popular selling high performance cylinder heads, are manufactured from
6061-T651 aircraft certified billet aluminum. Thunder Domes IITM
dramatically improve throttle response, ease of starting and provide a
15%-20 % improvement in fuel economy! LPI designs all Thunder DomesTM
using the latest CAD (Computer Aided Design) and thermodynamic modeling
software to extract the most horsepower, efficiency and fuel savings out
of each application!! Thunder Domes IITM
will provide a 4-5 sled length acceleration advantage over stock sleds
in a 1000' Gain 6-8 horsepower at peak (11-12 hp midrange on twins) on
pump gas!! Optional "SR" (Special Race) chambers designed for race fuel
provide an additional 3-5 horsepower gain. The number one choice among
experienced snowmobilers, the LPI Thunder Domes IITM
are synonymous with high quality, outstanding performance improvements
and the only heads on the market guaranteed to improve fuel economy!
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Kits available for the following
models: |
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Twins |
Triples |
- XC 600/700/800 SP V.E.S.
'00-'04
- XC 600/700/800 non-V.E.S.
'97-'01
- RMK/SKS 600/700/800 '97-'02
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- XLT/XCR 580/600 '93-'99
- XC/XCR 600/700 '96-'98
- Storm 750/800 '93-'98
- Ultra 680/SPX '96-'98
- XCR 800 '99-'03
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STORM 800
THUNDER DOMES IITM - LPI now
offers
Thunder Dome IITM
technology for the
Storm 800 owner. Derived from our new computer designed combustion
chamber profiles, LPI machines your stock head castings to accept our
famous
Thunder Dome IITM
interchangeable
combustion chambers. We eliminate the stock head gasket and replace it
with our superior o-ring seal design. Provides a 6-8 horsepower gain on
pump gas with a 15-20% improvement in fuel economy!! Dramatically
improves throttle response, ease of starting and trailability, yet
retains stock appearance!! A must have for all piped or modified
Storms!!
Comes complete
with hardware, choice of chambers, o-rings and installation
instructions. This modification is part of the
98' Trail
DominatorTM
Engine kit.
Current
Trail DominatorTM
kit owners can now
update to the new
Thunder Dome IITM
design.
Available for all
1994-98
Polaris Storm
800cc engines. LPI strongly recommends our Trail DominatorTM
secondary clutch kit to be used with our
Thunder Dome IITM
for
maximum performance results!!
Call for specific applications. |
POLARIS XC/RMK 600/700 RMK 800 THUNDER DOMES IITM
- High
performance interchangeable combustion chamber cylinder
head assembly for the XC/RMK 600/700/800. Thunder Domes IITM
feature an advanced three piece design with the traditional LPI
interchangeable combustion chamber domes, outer shell and a new rigid
cover assembly with a built-in optional thermostat . The color anodized
outer cover allows 35% more coolant flow over the combustion chamber
areas for improved thermodynamic heat management and is designed to
function as an upper cylinder "torque plate"!! The snowmobile industries
most popular selling high performance cylinder heads, transforms the
potent XC/RMK 600/700/800 into a "trail scorcher"!! Manufactured
from 6061-T651 aircraft certified billet aluminum, Thunder Domes IITM
dramatically improve throttle response, ease of starting and provide
a 15%-20% improvement in fuel economy!! Computer Aided Design (CAD)
combustion chambers yield a 6-8 horsepower gain on pump gas while
broadening the torque curve. LPI designs all Thunder DomesTM
using the latest CAD and thermodynamic modeling software to extract
the most horsepower, efficiency and fuel savings out of each
application!!
Thunder Domes IITM
will provide a instant 4-5 sled length advantage over stock sleds!!
Optional "SR" (special race) chambers designed for race fuel provide an
additional 3-5 horsepower gain. The number one choice among experienced
snowmobilers, the LPI Thunder Domes IITM
are synonymous with high quality, outstanding performance
improvements and the only heads on the market guaranteed to improve fuel
economy!!
Call for specific applications. |
XLT / XCR
THUNDER DOMESTM -
LPI's new design
Thunder DomesTM
are a two piece structure manufactured from 7075-T651 aerospace
grade billet aluminum, the strongest grade aircraft aluminum available!
Thunder DomesTM
are 50% stronger than the stock head and allows you to custom change
compression ratios instantly with our unique interchangeable dome
design! Combustion chamber dome profiles and squish band clearances are
computer designed and engineered for each specific altitude and fuel
requirement thereby maximizing horsepower and efficiency out of each
drop of fuel!! Allows the rider to easily substitute compression ratios
for altitude changes or peak performance , A must for any XLT/XCR, with
a 7-8 HP gain (most models) on pump gas!! This is the least expensive
and most effective modification that you can perform in under an hour!!
Bolt on a set today and experience instantaneous throttle response,
quicker acceleration , improved fuel economy and ease of
starting-guaranteed!! Undoubtedly the best
horsepower-per-dollar improvement for the XLT /XCR- 600!!
Excellent for use on
completely stock, turbo powered or high performance XLT/XCR 600 trail
machines. Color anodized for great looks and corrosion protection!
The LPI Thunder DomesTM
are truly "Better by Design"!! |
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Thunder Dome, thunderdome, Trail Dominator, Fitch Fuel Catalyst, ZX2
Oil, Legend Peformance, TRAIL DOMINATOR, ZX, FITCH FUEL CATALYST, ZX2,
snowmobile, ATV, powersports, carb, carburetor, carburation, gas, oil,
Polaris, Arctic Cat, Ski-Doo, Yamaha, artic, winter, snow, dirt,
lubrication, lube, premium |
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