Quads

 

Services

Honda TRX450 Stage 1

Our stage one engine kit is a great boost in performance without spending big money. This kit is geared toward the consumer that already has a installed a mild cam shaft.(HRC, Hot Cams, CRF Cam).  We port the head to improve engine breathing. We grind the valve seats, improving the seat shapes which further increases air flow. We raise the compression and improve reliability by installing a CP piston.

For even better gain we can bore Carburetor (06 and newer) to 43 mm.

This combination does a great job of improving acceleration as well as a awesome top end gains.  The resulting power gain make the engine pull hard off the corners, as well as ideal for hill climbs. The mid range power make for strong pull in every gear and it has enough top end to be a great race engine.

The chart below shows a stage 1 05 TRX 450 compared to stock 05 TRX 450 with Race pipe.

 

Honda TRX450 Stage 2

Our stage 2 modifications put as much air through the stock valves as you can get.  The head is ported to increase air flow while carefully optimizing velocity. We grind the valve seats with angles we have found to make the best low lift flow. We match the carburetor to the improved head by taper boring to 43 mm. The air flow improvements to the head and carburetor allow us to utilize a Web Camshaft with much more lift and duration. To keep the taller cam lobes from running off the lifters we machine the intake valve lifter bodies out to accept larger diameter lifters. This along with an improved valve spring kit gives use an extremely reliable and long lasting high lift camshaft and valve train.  We install valve spring and set valve seat pressure. For best results we install a standard bore 14-1 CP piston kit.

We finish the kit off with the LED exhaust system and our sheet metal intake tube and K&N Filter.

This kit is very effective in a wide verity of conditions. The strong low end is great for tail riding and cross country. The midrange and top end power is awesome in the dunes.The increased acceleration makes it a winner on the motocross track.

 

Honda TRX450 Stage 3

The head is ported to increase air flow while carefully optimizing velocity. We grind the valve seats with angles we have found to make the best low lift flow. The intake valve size is increased to 37mm and exhaust valve size increase to 31 mm. The increased valve size increases intake air flow over 10 CFM which gives an over 4 hp increase. We match the carburetor to the improved head by taper boring to 43 mm. To take advantage of the increased air flow, we use a Web Camshaft with much more lift and duration. To keep the taller cam lobes from running off the lifters we machine the intake valve lifter bodies out to accept larger diameter lifters. This along with an improved valve spring kit gives use an extremely reliable and long lasting high lift camshaft and valve train.  We install valve spring and set valve seat pressure. 

For best results we install a standard bore 14-1 CP piston kit. 

We finish the kit off with the LED exhaust system and our sheet metal intake tube and K&N Filter.  

The stage 3 kit is a National level race engine versatile enough for sand dunes or motocross. The tractable power delivery coupled with nearly 61 rear wheel horsepower, make it capable of winning at a national TT level. These kit have even proved to be tractable enough for trail riding. 

Honda 04/05 TRX 580 Kit

 

Copyright (c) 2008 LEDPerformance.com. All rights reserved. Design by Curt Bryant w/ CSS Templates