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Importance de la culasse : ENDRIGO Bolt-on Port and Polished Head Kit

Objet : Importance de la culasse : ENDRIGO Bolt-on Port and Polished Head Kit
par youpla123 sur 06/08/2011 01:53:23

ENDRIGO Bolt-on Port and Polished Head Kit

Citation :

The reason we developed this kit is to offer a simple to install, cost effective alternative to the 4 valve head and to UNLEASH the POWER of the stock GY6 HEAD***. This resulted in serious hill climbing, higher speeds and an unexpected sustained increases in fuel economy

traduction:

La raison pour laquelle nous avons développé ce kit est d'en offrir un simple à installer, pour un coût efficace et une alternative à la culasse 4 soupapes et pour libérer la puissance de la culasse GY6 d'origine ***.

Il en est résulté un sérieux gain dans la capacité à grimper les côtes, des vitesses plus élevées et une augmentation inattendue dans l'économie de carburant.

http://scootdawg.proboards.com/index. ... action=print&thread=24206

récap des modifs de la culasse GY6 :
- polissage des conduits
- augmentation du diamètres des conduits + pipe
- soupapes inox plus légères
- ressorts + durs
- augmentation du diamètre des soupapes
- rabottage de la culasse (+compression)

Performances : tests effectués sur le 150cc GY6 de sa fille

config origine :

config stage I :

config stage II :

Tarifs : un peu cher quand même

Citation :

Endrigo Racing Head options:
Stage 1 Head: $199.95 ("Power Booster")
- Ported intake runner gives 7% gain over stock
- Performance 3-angle valve job
- Remachined head gasket surface.

Stage 2 Head: $249.95 ("Mountain Master")
- Ported intake and exhaust runners gives 13% gain over stock intake and 5% gain over stock exhaust.
- Mulit-angle race valve job
- Remachined head gasket surface.

Stage 2+ Head: $274.95 ("Mountain Master Plus")
- Same as Stage 2, with the additional removal of .025” material on the deck surface for an additional 1.0 point of compression.

Stage 3 Head: $324.95 ("Monster Power")
- Everything from the Stage 2, plus:
- Additional porting intake and exhaust gives 20% gain over stock intake and 11% gain over stock exhaust
- oversized intake valve; additional .025 material removed from deck surface for a 1.0 point of compression increase over stock.
Stage 3 heads are custom built and may require additional lead time up to 8 business days from order date before shipping due to the extra modifications.